Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_write_perm_f_s1_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/SysLibs/FileStores/WritePermFS1/WritePermFS1.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">// Example constructs and writes a network of objects to a permanent file store.</span>
<a name="l00015"></a>00015 <span class="comment">// Each object is then loaded back in, one at a time, its content displayed at the </span>
<a name="l00016"></a>00016 <span class="comment">// console and then destroyed.</span>
<a name="l00017"></a>00017 <span class="comment">// The CClassR object is changed and stored back before it is destroyed </span>
<a name="l00018"></a>00018 <span class="comment">// The order in which the objects are loaded from the store is different from the order</span>
<a name="l00019"></a>00019 <span class="comment">// in which they were initially created.</span>
<a name="l00020"></a>00020 <span class="comment">// The example creates an index of "top level" stream ids. The index is stored in its</span>
<a name="l00021"></a>00021 <span class="comment">// own stream and forms the root stream of the store. </span>
<a name="l00022"></a>00022 <span class="comment">// The example:</span>
<a name="l00023"></a>00023 <span class="comment">// creates a permanent file store (replacing any existing permanent </span>
<a name="l00024"></a>00024 <span class="comment">// file store of the same name)</span>
<a name="l00025"></a>00025 <span class="comment">// constructs a TExampleIndex object</span>
<a name="l00026"></a>00026 <span class="comment">// constructs a CClassP object, externalizes it in its own stream, </span>
<a name="l00027"></a>00027 <span class="comment">// saves the stream id in the index and then destroys the </span>
<a name="l00028"></a>00028 <span class="comment">// CClassP object</span>
<a name="l00029"></a>00029 <span class="comment">// constructs a CClassR object, externalizes it in its own stream, </span>
<a name="l00030"></a>00030 <span class="comment">// saves the stream id in the index and then destroys the </span>
<a name="l00031"></a>00031 <span class="comment">// CClassR object</span>
<a name="l00032"></a>00032 <span class="comment">// constructs a CClassABC container object containing a CClassA, </span>
<a name="l00033"></a>00033 <span class="comment">// a CClassB and a CClassC object and then completes the construction</span>
<a name="l00034"></a>00034 <span class="comment">// of these contained objects.</span>
<a name="l00035"></a>00035 <span class="comment">// The CClassB object is externalized in its own stream. The CClassA, the streamid of the</span>
<a name="l00036"></a>00036 <span class="comment">// CClassB object and the CClassC object are externalized in a single</span>
<a name="l00037"></a>00037 <span class="comment">// stream and this streamid is saved into the index</span>
<a name="l00038"></a>00038 <span class="comment">// externalizes the TExampleIndex object in its own stream and makes</span>
<a name="l00039"></a>00039 <span class="comment">// this stream the root stream of the file store.</span>
<a name="l00040"></a>00040 <span class="comment">// closes the permanent file store.</span>
<a name="l00041"></a>00041 <span class="comment">// re-opens the permanent file store</span>
<a name="l00042"></a>00042 <span class="comment">// restores the TExampleIndex object from the root stream</span>
<a name="l00043"></a>00043 <span class="comment">// restores the CClassR object from its stream, displays the content,</span>
<a name="l00044"></a>00044 <span class="comment">// changes the content, replaces the stream and then destroys the object from</span>
<a name="l00045"></a>00045 <span class="comment">// memory</span>
<a name="l00046"></a>00046 <span class="comment">// restores the CClassR object for a second time from its stream, displays </span>
<a name="l00047"></a>00047 <span class="comment">// the (updated) content and then destroys the object from memory again</span>
<a name="l00048"></a>00048 <span class="comment">// restores the CClassABC container object; in effect, this restores </span>
<a name="l00049"></a>00049 <span class="comment">// its contained CClassA and CClassC objects and the stream id of its</span>
<a name="l00050"></a>00050 <span class="comment">// CClassB object. The CClassB object is not restored into memory until </span>
<a name="l00051"></a>00051 <span class="comment">// it is needed. </span>
<a name="l00052"></a>00052 <span class="comment">// displays the content of the CClassA, CClassB and CClassC objects; it is</span>
<a name="l00053"></a>00053 <span class="comment">// at this time that the CClassB object is restored into memory.</span>
<a name="l00054"></a>00054 <span class="comment">// restores the CClassP object from its stream and displays its contents</span>
<a name="l00055"></a>00055 <span class="comment">// and then destroys it</span>
<a name="l00056"></a>00056 <span class="comment">// (NB that the order in which the objects are restored is different to </span>
<a name="l00057"></a>00057 <span class="comment">// the order in which their corresponding streams were created)</span>
<a name="l00058"></a>00058 <span class="comment">// closes the permanent file store.</span>
<a name="l00059"></a>00059 <span class="comment">// Notes:</span>
<a name="l00060"></a>00060 <span class="comment">// The file name and extension of the permanent file store is </span>
<a name="l00061"></a>00061 <span class="comment">// "WritePermFS.dat"and will be created in "\epoc32ex\data\" on the system drive.</span>
<a name="l00062"></a>00062 <span class="comment">//</span>
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="preprocessor">#include "WritePermFS1.h"</span>
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">//***************************************************************</span>
<a name="l00067"></a>00067 <span class="comment">//</span>
<a name="l00068"></a>00068 <span class="comment">// Implementations</span>
<a name="l00069"></a>00069 <span class="comment">//</span>
<a name="l00070"></a>00070 <span class="comment">//***************************************************************</span>
<a name="l00071"></a>00071
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="comment">// The file name, extension and path for the file store</span>
<a name="l00074"></a>00074 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFullNameOfFileStore,<span class="stringliteral">"\\epoc32ex\\data\\WritePermFS.dat"</span>);
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="comment">// Do the example</span>
<a name="l00077"></a>00077 LOCAL_C <span class="keywordtype">void</span> doExampleL()
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 <span class="comment">// make sure directory exists</span>
<a name="l00080"></a>00080 fsSession.MkDirAll(KFullNameOfFileStore);
<a name="l00081"></a>00081 doMakeL(KFullNameOfFileStore);
<a name="l00082"></a>00082 doUseL(KFullNameOfFileStore);
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085
<a name="l00086"></a>00086 LOCAL_C <span class="keywordtype">void</span> doMakeL(<span class="keyword">const</span> TDesC& aName)
<a name="l00087"></a>00087 {
<a name="l00088"></a>00088 <span class="comment">// Create (replace, if it exists) the permanent file store</span>
<a name="l00089"></a>00089 TParse filestorename;
<a name="l00090"></a>00090 fsSession.Parse(aName,filestorename);
<a name="l00091"></a>00091 CFileStore* store = CPermanentFileStore::ReplaceLC(fsSession,filestorename.FullName(),EFileWrite);
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="comment">// Must say what kind of file store.</span>
<a name="l00094"></a>00094 store->SetTypeL(KPermanentFileStoreLayoutUid);
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="comment">// Create a TExampleIndex object to hold the stream ids of all</span>
<a name="l00097"></a>00097 <span class="comment">// the component streams</span>
<a name="l00098"></a>00098 <a class="code" href="class_t_example_index.html">TExampleIndex</a> theIndex;
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="comment">// Construct the CClassP object, putting some data into it, </span>
<a name="l00101"></a>00101 <span class="comment">// write it to its own stream and save the stream id in</span>
<a name="l00102"></a>00102 <span class="comment">// the index.</span>
<a name="l00103"></a>00103 <span class="comment">// Destroy the CClassP object after stream creation</span>
<a name="l00104"></a>00104 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtDataForClassP,<span class="stringliteral">"Data for CClassP - PPPPP"</span>);
<a name="l00105"></a>00105 <a class="code" href="class_c_class_p.html">CClassP</a>* theP = CClassP::NewLC(KTxtDataForClassP,*store);
<a name="l00106"></a>00106 theIndex.iPid = theP->StoreL();
<a name="l00107"></a>00107 CleanupStack::PopAndDestroy();
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="comment">// Construct the CClassR object, put some data into it, </span>
<a name="l00110"></a>00110 <span class="comment">// write it to its own stream and save the stream id in</span>
<a name="l00111"></a>00111 <span class="comment">// the index.</span>
<a name="l00112"></a>00112 <span class="comment">// Destroy the CClassR object after stream creation</span>
<a name="l00113"></a>00113 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtDataForClassR,<span class="stringliteral">"Data for the CClassR - RRRRR"</span>);
<a name="l00114"></a>00114 <a class="code" href="class_c_class_r.html">CClassR</a>* theR = CClassR::NewLC(KTxtDataForClassR,*store);
<a name="l00115"></a>00115 theIndex.iRid = theR->StoreL();
<a name="l00116"></a>00116 CleanupStack::PopAndDestroy();
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="comment">// Construct the container object for CClassA,CClassB and CClassC.</span>
<a name="l00119"></a>00119 <span class="comment">// Complete the construction of the contained CClassA, CClassB</span>
<a name="l00120"></a>00120 <span class="comment">// and CClassC objects.</span>
<a name="l00121"></a>00121 <span class="comment">// </span>
<a name="l00122"></a>00122 <span class="comment">// Write out this object network and save the top level stream id</span>
<a name="l00123"></a>00123 <span class="comment">// in the index.</span>
<a name="l00124"></a>00124 <span class="comment">// Destroy this object network after stream creation</span>
<a name="l00125"></a>00125 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtDataForClassA,<span class="stringliteral">"Data for the CClassA - AAAAA"</span>);
<a name="l00126"></a>00126 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtDataForClassB,<span class="stringliteral">"Data for the CClassB - BBBBB"</span>);
<a name="l00127"></a>00127 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtDataForClassC,<span class="stringliteral">"Data for the CClassC - CCCCC"</span>);
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <a class="code" href="class_c_class_a_b_c.html">CClassABC</a>* theABC = CClassABC::NewLC(*store);
<a name="l00130"></a>00130 theABC->ConstructAL(KTxtDataForClassA,-1,2);
<a name="l00131"></a>00131 theABC->ConstructB(KTxtDataForClassB,-3,4,5.6);
<a name="l00132"></a>00132 theABC->ConstructC(KTxtDataForClassC);
<a name="l00133"></a>00133 theIndex.iABCid = theABC->StoreL();
<a name="l00134"></a>00134 CleanupStack::PopAndDestroy();
<a name="l00135"></a>00135
<a name="l00136"></a>00136 <span class="comment">// Now write the index itself to its own stream ...</span>
<a name="l00137"></a>00137 TStreamId <span class="keywordtype">id</span> = theIndex.StoreL(*store);
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="comment">// ... and make this stream the root stream</span>
<a name="l00140"></a>00140 store->SetRootL(<span class="keywordtype">id</span>);
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="comment">// Now commit all changes to the store</span>
<a name="l00143"></a>00143 store->CommitL();
<a name="l00144"></a>00144
<a name="l00145"></a>00145 <span class="comment">// Destroy the permanent file store object (closes the file)</span>
<a name="l00146"></a>00146 CleanupStack::PopAndDestroy();
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148
<a name="l00149"></a>00149
<a name="l00150"></a>00150 LOCAL_C <span class="keywordtype">void</span> doUseL(<span class="keyword">const</span> TDesC& aName)
<a name="l00151"></a>00151 {
<a name="l00152"></a>00152 <span class="comment">// Open the permanent file store</span>
<a name="l00153"></a>00153 TParse filestorename;
<a name="l00154"></a>00154 fsSession.Parse(aName,filestorename);
<a name="l00155"></a>00155 CFileStore* store = CPermanentFileStore::OpenLC(fsSession,filestorename.FullName(),EFileRead|EFileWrite);
<a name="l00156"></a>00156
<a name="l00157"></a>00157 <span class="comment">// Restore the index of streamids so that we can access (restore)</span>
<a name="l00158"></a>00158 <span class="comment">// all the other objects. The index is found in the root stream </span>
<a name="l00159"></a>00159 <a class="code" href="class_t_example_index.html">TExampleIndex</a> theIndex;
<a name="l00160"></a>00160 theIndex.RestoreL(*store,store->Root());
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <span class="comment">// Restore the CClassR object, display the content, make a change and</span>
<a name="l00163"></a>00163 <span class="comment">// update the stream to reflect the changed content.</span>
<a name="l00164"></a>00164 <span class="comment">// If updating the stream succeeds, commit the changes to the store</span>
<a name="l00165"></a>00165 <span class="comment">// otherwise attempt to revert the store to its state at the last</span>
<a name="l00166"></a>00166 <span class="comment">// commit point.</span>
<a name="l00167"></a>00167 <span class="comment">// Destroy the CClassR object.</span>
<a name="l00168"></a>00168 <a class="code" href="class_c_class_r.html">CClassR</a>* theR;
<a name="l00169"></a>00169
<a name="l00170"></a>00170 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtClassRContent,<span class="stringliteral">"CClassR content ..."</span>);
<a name="l00171"></a>00171 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtNewForClassR,<span class="stringliteral">"New data for the CClassR +++++++"</span>);
<a name="l00172"></a>00172
<a name="l00173"></a>00173 theR = CClassR::NewLC(*store,theIndex.iRid);
<a name="l00174"></a>00174 doShow(KTxtClassRContent,*theR);
<a name="l00175"></a>00175 theR->ChangeDataL(KTxtNewForClassR);
<a name="l00176"></a>00176 CleanupStack::PopAndDestroy();
<a name="l00177"></a>00177
<a name="l00178"></a>00178 <span class="comment">// Restore the CClassR object again, display the content and</span>
<a name="l00179"></a>00179 <span class="comment">// then destroy it</span>
<a name="l00180"></a>00180 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpadtedClassR,<span class="stringliteral">"Updated CClassR content ..."</span>);
<a name="l00181"></a>00181
<a name="l00182"></a>00182 theR = CClassR::NewLC(*store,theIndex.iRid);
<a name="l00183"></a>00183 doShow(KTxtUpadtedClassR,*theR);
<a name="l00184"></a>00184 CleanupStack::PopAndDestroy();
<a name="l00185"></a>00185
<a name="l00186"></a>00186 <span class="comment">// Restore the CClassABC and display content of all contained objects.</span>
<a name="l00187"></a>00187 <span class="comment">// Note that the loading of the CClassB object is deferred until it </span>
<a name="l00188"></a>00188 <span class="comment">// is needed.</span>
<a name="l00189"></a>00189 <span class="comment">// Destroy the CClassABC </span>
<a name="l00190"></a>00190 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtShowClassA,<span class="stringliteral">"CClassA content ..."</span>);
<a name="l00191"></a>00191 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtShowClassB,<span class="stringliteral">"CClassB content ..."</span>);
<a name="l00192"></a>00192 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtShowClassC,<span class="stringliteral">"CClassC content ..."</span>);
<a name="l00193"></a>00193
<a name="l00194"></a>00194 <a class="code" href="class_c_class_a_b_c.html">CClassABC</a>* theABC = CClassABC::NewLC(*store,theIndex.iABCid);
<a name="l00195"></a>00195 doShow(KTxtShowClassA,*theABC->PtrA());
<a name="l00196"></a>00196 doShow(KTxtShowClassB,*theABC->PtrBL());<span class="comment">// CClassB object is loaded at this point</span>
<a name="l00197"></a>00197 doShow(KTxtShowClassC,*theABC->PtrC());
<a name="l00198"></a>00198 CleanupStack::PopAndDestroy();
<a name="l00199"></a>00199
<a name="l00200"></a>00200 <span class="comment">// Restore the CClassP object, display the content and</span>
<a name="l00201"></a>00201 <span class="comment">// then destroy it;</span>
<a name="l00202"></a>00202 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtShowClassP,<span class="stringliteral">"CClassP content ..."</span>);
<a name="l00203"></a>00203
<a name="l00204"></a>00204 <a class="code" href="class_c_class_p.html">CClassP</a>* theP = CClassP::NewLC(*store,theIndex.iPid);
<a name="l00205"></a>00205 doShow(KTxtShowClassP,*theP);
<a name="l00206"></a>00206 CleanupStack::PopAndDestroy();
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="comment">// Destroy the permanent file store object (closes the file) </span>
<a name="l00209"></a>00209 CleanupStack::PopAndDestroy();
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211
<a name="l00212"></a>00212 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtNewLine,<span class="stringliteral">"\n"</span>);
<a name="l00213"></a>00213 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormatType1,<span class="stringliteral">"\n%S, "</span>);
<a name="l00214"></a>00214 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormatType2,<span class="stringliteral">"%d, "</span>);
<a name="l00215"></a>00215 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormatType3,<span class="stringliteral">"%u "</span>);
<a name="l00216"></a>00216 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormatType4,<span class="stringliteral">"%u, "</span>);
<a name="l00217"></a>00217 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormatType5,<span class="stringliteral">"%f "</span>);
<a name="l00218"></a>00218
<a name="l00219"></a>00219 LOCAL_C <span class="keywordtype">void</span> doShow(<span class="keyword">const</span> TDesC& aHeading,<span class="keyword">const</span> <a class="code" href="class_c_class_a.html">CClassA</a>& anA)
<a name="l00220"></a>00220 {
<a name="l00221"></a>00221 console->Printf(KTxtNewLine);
<a name="l00222"></a>00222 console->Printf(aHeading);
<a name="l00223"></a>00223 console->Printf(KFormatType1,anA.iVarBuf);
<a name="l00224"></a>00224 console->Printf(KFormatType2,anA.iIntValue);
<a name="l00225"></a>00225 console->Printf(KFormatType3,anA.iUintValue);
<a name="l00226"></a>00226 console->Printf(KTxtNewLine);
<a name="l00227"></a>00227 }
<a name="l00228"></a>00228
<a name="l00229"></a>00229
<a name="l00230"></a>00230 LOCAL_C <span class="keywordtype">void</span> doShow(<span class="keyword">const</span> TDesC& aHeading,<span class="keyword">const</span> CClassB& aB)
<a name="l00231"></a>00231 {
<a name="l00232"></a>00232 console->Printf(KTxtNewLine);
<a name="l00233"></a>00233 console->Printf(aHeading);
<a name="l00234"></a>00234 console->Printf(KFormatType1,&aB.iFixBuf);
<a name="l00235"></a>00235 console->Printf(KFormatType2,aB.iIntValue);
<a name="l00236"></a>00236 console->Printf(KFormatType4,aB.iUintValue);
<a name="l00237"></a>00237 console->Printf(KFormatType5,aB.iRealValue);
<a name="l00238"></a>00238 console->Printf(KTxtNewLine);
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240
<a name="l00241"></a>00241
<a name="l00242"></a>00242 LOCAL_C <span class="keywordtype">void</span> doShow(<span class="keyword">const</span> TDesC& aHeading,<span class="keyword">const</span> CClassC& aC)
<a name="l00243"></a>00243 {
<a name="l00244"></a>00244 console->Printf(KTxtNewLine);
<a name="l00245"></a>00245 console->Printf(aHeading);
<a name="l00246"></a>00246 console->Printf(KFormatType1,&aC.iFixBuf);
<a name="l00247"></a>00247 console->Printf(KTxtNewLine);
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249
<a name="l00250"></a>00250 LOCAL_C <span class="keywordtype">void</span> doShow(<span class="keyword">const</span> TDesC& aHeading,<span class="keyword">const</span> <a class="code" href="class_c_class_p.html">CClassP</a>& aP)
<a name="l00251"></a>00251 {
<a name="l00252"></a>00252 console->Printf(KTxtNewLine);
<a name="l00253"></a>00253 console->Printf(aHeading);
<a name="l00254"></a>00254 console->Printf(KFormatType1,&aP.iFixBuf);
<a name="l00255"></a>00255 console->Printf(KTxtNewLine);
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257
<a name="l00258"></a>00258 LOCAL_C <span class="keywordtype">void</span> doShow(<span class="keyword">const</span> TDesC& aHeading,<span class="keyword">const</span> <a class="code" href="class_c_class_r.html">CClassR</a>& aR)
<a name="l00259"></a>00259 {
<a name="l00260"></a>00260 console->Printf(KTxtNewLine);
<a name="l00261"></a>00261 console->Printf(aHeading);
<a name="l00262"></a>00262 console->Printf(KFormatType1,&aR.iFixBuf);
<a name="l00263"></a>00263 console->Printf(KTxtNewLine);
<a name="l00264"></a>00264 }
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <span class="comment">//***************************************************************</span>
<a name="l00267"></a>00267 <span class="comment">//</span>
<a name="l00268"></a>00268 <span class="comment">// CClassABC Implementation</span>
<a name="l00269"></a>00269 <span class="comment">//</span>
<a name="l00270"></a>00270 <span class="comment">//***************************************************************</span>
<a name="l00271"></a>00271 CClassABC::CClassABC(CStreamStore& aStore)
<a name="l00272"></a>00272 : iStore(aStore)
<a name="l00273"></a>00273 {}
<a name="l00274"></a>00274
<a name="l00275"></a>00275 CClassABC::CClassABC(CStreamStore& aStore,TStreamId anId)
<a name="l00276"></a>00276 : iStore(aStore), iId(anId)
<a name="l00277"></a>00277 {}
<a name="l00278"></a>00278
<a name="l00279"></a>00279 <a class="code" href="class_c_class_a_b_c.html">CClassABC</a>* CClassABC::NewLC(CStreamStore& aStore)
<a name="l00280"></a>00280 {
<a name="l00281"></a>00281 <a class="code" href="class_c_class_a_b_c.html">CClassABC</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_class_a_b_c.html">CClassABC</a>(aStore);
<a name="l00282"></a>00282 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00283"></a>00283 <span class="keyword">self</span>->ConstructL();
<a name="l00284"></a>00284 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00285"></a>00285 }
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <a class="code" href="class_c_class_a_b_c.html">CClassABC</a>* CClassABC::NewLC(CStreamStore& aStore, TStreamId anId)
<a name="l00288"></a>00288 {
<a name="l00289"></a>00289 <a class="code" href="class_c_class_a_b_c.html">CClassABC</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_class_a_b_c.html">CClassABC</a>(aStore,anId);
<a name="l00290"></a>00290 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00291"></a>00291 <span class="keyword">self</span>->RestoreL();
<a name="l00292"></a>00292 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00293"></a>00293 }
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="keywordtype">void</span> CClassABC::ConstructL()
<a name="l00296"></a>00296 {
<a name="l00297"></a>00297 iA = CClassA::NewL();
<a name="l00298"></a>00298 iB = CClassB::NewL();<span class="comment">// assigns CClassB* to TSwizzle<CClassB>. Uses TSwizzle operator=(T*)</span>
<a name="l00299"></a>00299 iC = CClassC::NewL();
<a name="l00300"></a>00300 }
<a name="l00301"></a>00301
<a name="l00302"></a>00302 <span class="keywordtype">void</span> CClassABC::ConstructAL(<span class="keyword">const</span> TDesC& aData,TInt anInt,TUint aUint)
<a name="l00303"></a>00303 {
<a name="l00304"></a>00304 iA->iVarBuf = aData.AllocL();
<a name="l00305"></a>00305 iA->iIntValue = anInt;
<a name="l00306"></a>00306 iA->iUintValue = aUint;
<a name="l00307"></a>00307 }
<a name="l00308"></a>00308
<a name="l00309"></a>00309 <span class="keywordtype">void</span> CClassABC::ConstructB(<span class="keyword">const</span> TDesC& aData,TInt anInt,TUint aUint,TReal aReal)
<a name="l00310"></a>00310 {
<a name="l00311"></a>00311 iB->iFixBuf = aData;
<a name="l00312"></a>00312 iB->iIntValue = anInt;
<a name="l00313"></a>00313 iB->iUintValue = aUint;
<a name="l00314"></a>00314 iB->iRealValue = aReal;
<a name="l00315"></a>00315 }
<a name="l00316"></a>00316
<a name="l00317"></a>00317 <span class="keywordtype">void</span> CClassABC::ConstructC(<span class="keyword">const</span> TDesC& aData)
<a name="l00318"></a>00318 {
<a name="l00319"></a>00319 iC->iFixBuf = aData;
<a name="l00320"></a>00320 }
<a name="l00321"></a>00321
<a name="l00322"></a>00322 <span class="comment">// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </span>
<a name="l00323"></a>00323 <span class="comment">// Destructor deletes the CClassB object only if it is in memory.</span>
<a name="l00324"></a>00324 <span class="comment">// The IsPtr() function can be used to determine whether the </span>
<a name="l00325"></a>00325 <span class="comment">// CClassB object is memory. </span>
<a name="l00326"></a>00326 <span class="comment">// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </span>
<a name="l00327"></a>00327 CClassABC::~CClassABC()
<a name="l00328"></a>00328 {
<a name="l00329"></a>00329 <span class="keyword">delete</span> iA;
<a name="l00330"></a>00330 <span class="keyword">delete</span> iC;
<a name="l00331"></a>00331 <span class="keywordflow">if</span> (iB.IsPtr())
<a name="l00332"></a>00332 <span class="keyword">delete</span> iB.AsPtr(); <span class="comment">// can also "delete iB;" makes implicit call to "operator T*()"</span>
<a name="l00333"></a>00333 }
<a name="l00334"></a>00334
<a name="l00335"></a>00335
<a name="l00336"></a>00336 <span class="comment">// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </span>
<a name="l00337"></a>00337 <span class="comment">// Stores the CClassB object in its own stream and</span>
<a name="l00338"></a>00338 <span class="comment">// then stores:</span>
<a name="l00339"></a>00339 <span class="comment">// the CClassA object,</span>
<a name="l00340"></a>00340 <span class="comment">// the streamid of the CClassB object,</span>
<a name="l00341"></a>00341 <span class="comment">// the CClassC object</span>
<a name="l00342"></a>00342 <span class="comment">// in a separate stream.</span>
<a name="l00343"></a>00343 <span class="comment">// Returns the streamid of this last stream</span>
<a name="l00344"></a>00344 <span class="comment">// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </span>
<a name="l00345"></a>00345 TStreamId CClassABC::StoreL()
<a name="l00346"></a>00346 {
<a name="l00347"></a>00347 <span class="comment">// Construct the output stream which is intended</span>
<a name="l00348"></a>00348 <span class="comment">// to hold the CClassB object only.</span>
<a name="l00349"></a>00349 RStoreWriteStream outstream;
<a name="l00350"></a>00350 TStreamId idForB = outstream.CreateLC(iStore);
<a name="l00351"></a>00351 <span class="comment">// Stream out the CClassB object.</span>
<a name="l00352"></a>00352 <span class="comment">// Note that the right hand side returns a reference</span>
<a name="l00353"></a>00353 <span class="comment">// to CClassB</span>
<a name="l00354"></a>00354 outstream << *iB;
<a name="l00355"></a>00355 <span class="comment">// Commit changes to the stream</span>
<a name="l00356"></a>00356 outstream.CommitL();
<a name="l00357"></a>00357 <span class="comment">// Cleanup the stream object</span>
<a name="l00358"></a>00358 CleanupStack::PopAndDestroy();
<a name="l00359"></a>00359 <span class="comment">// Now construct the output stream which is intended</span>
<a name="l00360"></a>00360 <span class="comment">// to hold:</span>
<a name="l00361"></a>00361 <span class="comment">// the CClassA object,</span>
<a name="l00362"></a>00362 <span class="comment">// the streamid of the CClassB object,</span>
<a name="l00363"></a>00363 <span class="comment">// the CClassC object</span>
<a name="l00364"></a>00364 TStreamId <span class="keywordtype">id</span> = outstream.CreateLC(iStore);
<a name="l00365"></a>00365 <span class="comment">// Write out the CClassA object.</span>
<a name="l00366"></a>00366 outstream << *iA;
<a name="l00367"></a>00367 <span class="comment">// Write out the stream id of the CClassB object</span>
<a name="l00368"></a>00368 outstream << idForB;
<a name="l00369"></a>00369 <span class="comment">// Write out the CClassC object.</span>
<a name="l00370"></a>00370 outstream << *iC;
<a name="l00371"></a>00371 <span class="comment">// Commit changes to the stream</span>
<a name="l00372"></a>00372 outstream.CommitL();
<a name="l00373"></a>00373 <span class="comment">// Cleanup the stream object,</span>
<a name="l00374"></a>00374 CleanupStack::PopAndDestroy();
<a name="l00375"></a>00375 <span class="comment">// Return this stream id</span>
<a name="l00376"></a>00376 <span class="keywordflow">return</span> id;
<a name="l00377"></a>00377 }
<a name="l00378"></a>00378
<a name="l00379"></a>00379
<a name="l00380"></a>00380 <span class="keyword">const</span> <a class="code" href="class_c_class_a.html">CClassA</a>* CClassABC::PtrA()
<a name="l00381"></a>00381 {
<a name="l00382"></a>00382 <span class="keywordflow">return</span> iA; <span class="comment">// Return a pointer to the contained CClassA object</span>
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384
<a name="l00385"></a>00385
<a name="l00386"></a>00386 <span class="keyword">const</span> CClassB* CClassABC::PtrBL()
<a name="l00387"></a>00387 {
<a name="l00388"></a>00388 <span class="keywordflow">if</span> (iB.IsId()) <span class="comment">// If the contained CClassB object is not in memory, it must</span>
<a name="l00389"></a>00389 RestoreBL(); <span class="comment">// be loaded in before a pointer can be returned to the caller</span>
<a name="l00390"></a>00390 <span class="keywordflow">return</span> iB.AsPtr();
<a name="l00391"></a>00391 }
<a name="l00392"></a>00392
<a name="l00393"></a>00393
<a name="l00394"></a>00394 <span class="keyword">const</span> CClassC* CClassABC::PtrC()
<a name="l00395"></a>00395 {
<a name="l00396"></a>00396 <span class="keywordflow">return</span> iC; <span class="comment">//Returns a pointer to the contained CClassC object</span>
<a name="l00397"></a>00397 }
<a name="l00398"></a>00398
<a name="l00399"></a>00399 <span class="comment">// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </span>
<a name="l00400"></a>00400 <span class="comment">// Restores the CClassA and CClassC objects and the streamid for the</span>
<a name="l00401"></a>00401 <span class="comment">// CClassB object.</span>
<a name="l00402"></a>00402 <span class="comment">// The swizzle for the CClassB object is constructed from the</span>
<a name="l00403"></a>00403 <span class="comment">// streamid but the CClassB object itself is NOT restored at </span>
<a name="l00404"></a>00404 <span class="comment">// this time.</span>
<a name="l00405"></a>00405 <span class="comment">// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </span>
<a name="l00406"></a>00406 <span class="keywordtype">void</span> CClassABC::RestoreL()
<a name="l00407"></a>00407 {
<a name="l00408"></a>00408 <span class="comment">// Construct the input stream.</span>
<a name="l00409"></a>00409 RStoreReadStream instream;
<a name="l00410"></a>00410 instream.OpenLC(iStore,iId);
<a name="l00411"></a>00411 <span class="comment">// Construct a CClassA object and restore from the stream</span>
<a name="l00412"></a>00412 iA = CClassA::NewL();
<a name="l00413"></a>00413 instream >> *iA;
<a name="l00414"></a>00414 <span class="comment">// Construct the swizzle for the CClassB object. This</span>
<a name="l00415"></a>00415 <span class="comment">// stream contains the id of the stream which </span>
<a name="l00416"></a>00416 <span class="comment">// actually contains the full CClassB object. The loading of</span>
<a name="l00417"></a>00417 <span class="comment">// the CClassB object into memory is deferred until later.</span>
<a name="l00418"></a>00418 <span class="comment">// The resulting swizzle represents the CClassB object as </span>
<a name="l00419"></a>00419 <span class="comment">// a streamid </span>
<a name="l00420"></a>00420 instream >> iB;
<a name="l00421"></a>00421 <span class="comment">// Construct a CClassC object and restrore from the stream</span>
<a name="l00422"></a>00422 iC = CClassC::NewL();
<a name="l00423"></a>00423 instream >> *iC;
<a name="l00424"></a>00424 <span class="comment">// Cleanup the stream object</span>
<a name="l00425"></a>00425 CleanupStack::PopAndDestroy();
<a name="l00426"></a>00426 }
<a name="l00427"></a>00427
<a name="l00428"></a>00428
<a name="l00429"></a>00429 <span class="comment">// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </span>
<a name="l00430"></a>00430 <span class="comment">// Loads the CClassB object into memory and changes the swizzle's</span>
<a name="l00431"></a>00431 <span class="comment">// representation from "streamid" to "pointer".</span>
<a name="l00432"></a>00432 <span class="comment">// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </span>
<a name="l00433"></a>00433 <span class="keywordtype">void</span> CClassABC::RestoreBL()
<a name="l00434"></a>00434 {
<a name="l00435"></a>00435 <span class="comment">// Construct the input stream. Assumes we have the correct store (this</span>
<a name="l00436"></a>00436 <span class="comment">// emphasizes the need to ensure that the store remain open)</span>
<a name="l00437"></a>00437 RStoreReadStream instream;
<a name="l00438"></a>00438 instream.OpenLC(iStore,iB.AsId());
<a name="l00439"></a>00439 <span class="comment">// Construct a CClassB object and restore from the stream. The </span>
<a name="l00440"></a>00440 <span class="comment">// assignment: CClassB* to TSwizzle<CClassB> changes the</span>
<a name="l00441"></a>00441 <span class="comment">// swizzle's representation of the CClassB object </span>
<a name="l00442"></a>00442 <span class="comment">// from "streamid" to "pointer"</span>
<a name="l00443"></a>00443 CClassB* ptrB = CClassB::NewLC();
<a name="l00444"></a>00444 instream >> *ptrB;
<a name="l00445"></a>00445 CleanupStack::Pop();
<a name="l00446"></a>00446 iB = ptrB;
<a name="l00447"></a>00447 <span class="comment">// Cleanup the stream object </span>
<a name="l00448"></a>00448 CleanupStack::PopAndDestroy();
<a name="l00449"></a>00449 }
<a name="l00450"></a>00450
<a name="l00451"></a>00451
<a name="l00452"></a>00452 <span class="comment">//***************************************************************</span>
<a name="l00453"></a>00453 <span class="comment">//</span>
<a name="l00454"></a>00454 <span class="comment">// CClassA Implementation</span>
<a name="l00455"></a>00455 <span class="comment">//</span>
<a name="l00456"></a>00456 <span class="comment">//***************************************************************</span>
<a name="l00457"></a>00457 <a class="code" href="class_c_class_a.html">CClassA</a>* CClassA::NewL()
<a name="l00458"></a>00458 {
<a name="l00459"></a>00459 <a class="code" href="class_c_class_a.html">CClassA</a>* <span class="keyword">self</span> = CClassA::NewLC();
<a name="l00460"></a>00460 CleanupStack::Pop();
<a name="l00461"></a>00461 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00462"></a>00462 }
<a name="l00463"></a>00463
<a name="l00464"></a>00464 <a class="code" href="class_c_class_a.html">CClassA</a>* CClassA::NewLC()
<a name="l00465"></a>00465 {
<a name="l00466"></a>00466 <a class="code" href="class_c_class_a.html">CClassA</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_class_a.html">CClassA</a>;
<a name="l00467"></a>00467 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00468"></a>00468 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00469"></a>00469 }
<a name="l00470"></a>00470
<a name="l00471"></a>00471 CClassA::~CClassA()
<a name="l00472"></a>00472 {
<a name="l00473"></a>00473 <span class="keyword">delete</span> iVarBuf;
<a name="l00474"></a>00474 }
<a name="l00475"></a>00475
<a name="l00476"></a>00476 <span class="keywordtype">void</span> CClassA::ExternalizeL(RWriteStream& aStream)<span class="keyword"> const</span>
<a name="l00477"></a>00477 <span class="keyword"> </span>{
<a name="l00478"></a>00478 aStream.WriteInt32L(iVarBuf->Des().MaxLength());
<a name="l00479"></a>00479 aStream << *iVarBuf;
<a name="l00480"></a>00480 aStream.WriteInt32L(iIntValue);
<a name="l00481"></a>00481 aStream.WriteUint32L(iUintValue);
<a name="l00482"></a>00482 }
<a name="l00483"></a>00483
<a name="l00484"></a>00484 <span class="keywordtype">void</span> CClassA::InternalizeL(RReadStream& aStream)
<a name="l00485"></a>00485 {
<a name="l00486"></a>00486 TInt maxlen;
<a name="l00487"></a>00487 maxlen = aStream.ReadInt32L();
<a name="l00488"></a>00488 iVarBuf = HBufC::NewL(aStream,maxlen);
<a name="l00489"></a>00489 iIntValue = aStream.ReadInt32L();
<a name="l00490"></a>00490 iUintValue = aStream.ReadUint32L();
<a name="l00491"></a>00491 }
<a name="l00492"></a>00492
<a name="l00493"></a>00493
<a name="l00494"></a>00494 <span class="comment">//***************************************************************</span>
<a name="l00495"></a>00495 <span class="comment">//</span>
<a name="l00496"></a>00496 <span class="comment">// CClassB Implementation</span>
<a name="l00497"></a>00497 <span class="comment">//</span>
<a name="l00498"></a>00498 <span class="comment">//***************************************************************</span>
<a name="l00499"></a>00499 CClassB* CClassB::NewLC()
<a name="l00500"></a>00500 {
<a name="l00501"></a>00501 CClassB* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) CClassB;
<a name="l00502"></a>00502 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00503"></a>00503 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00504"></a>00504 }
<a name="l00505"></a>00505
<a name="l00506"></a>00506 CClassB* CClassB::NewL()
<a name="l00507"></a>00507 {
<a name="l00508"></a>00508 CClassB* <span class="keyword">self</span> = <a class="code" href="class_c_ezlib_example.html#a7c541c9d16531ccc9ca4876cc9bfa33f">CClassB::NewLC</a>();
<a name="l00509"></a>00509 CleanupStack::Pop();
<a name="l00510"></a>00510 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00511"></a>00511 }
<a name="l00512"></a>00512
<a name="l00513"></a>00513 <span class="keywordtype">void</span> CClassB::ExternalizeL(RWriteStream& aStream)<span class="keyword"> const</span>
<a name="l00514"></a>00514 <span class="keyword"> </span>{
<a name="l00515"></a>00515 aStream << iFixBuf;
<a name="l00516"></a>00516 aStream.WriteInt32L(iIntValue);
<a name="l00517"></a>00517 aStream.WriteUint32L(iUintValue);
<a name="l00518"></a>00518 aStream.WriteReal64L(iRealValue);
<a name="l00519"></a>00519 }
<a name="l00520"></a>00520
<a name="l00521"></a>00521 <span class="keywordtype">void</span> CClassB::InternalizeL(RReadStream& aStream)
<a name="l00522"></a>00522 {
<a name="l00523"></a>00523 aStream >> iFixBuf;
<a name="l00524"></a>00524 iIntValue = aStream.ReadInt32L();
<a name="l00525"></a>00525 iUintValue = aStream.ReadUint32L();
<a name="l00526"></a>00526 iRealValue = aStream.ReadReal64L();
<a name="l00527"></a>00527 }
<a name="l00528"></a>00528
<a name="l00529"></a>00529 <span class="comment">//***************************************************************</span>
<a name="l00530"></a>00530 <span class="comment">//</span>
<a name="l00531"></a>00531 <span class="comment">// CClassC Implementation</span>
<a name="l00532"></a>00532 <span class="comment">//</span>
<a name="l00533"></a>00533 <span class="comment">//***************************************************************</span>
<a name="l00534"></a>00534 CClassC* CClassC::NewL()
<a name="l00535"></a>00535 {
<a name="l00536"></a>00536 CClassC* <span class="keyword">self</span> = <a class="code" href="class_c_ezlib_example.html#a7c541c9d16531ccc9ca4876cc9bfa33f">CClassC::NewLC</a>();
<a name="l00537"></a>00537 CleanupStack::Pop();
<a name="l00538"></a>00538 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00539"></a>00539 }
<a name="l00540"></a>00540
<a name="l00541"></a>00541 CClassC* CClassC::NewLC()
<a name="l00542"></a>00542 {
<a name="l00543"></a>00543 CClassC* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) CClassC;
<a name="l00544"></a>00544 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00545"></a>00545 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00546"></a>00546 }
<a name="l00547"></a>00547
<a name="l00548"></a>00548 <span class="keywordtype">void</span> CClassC::ExternalizeL(RWriteStream& aStream)<span class="keyword"> const</span>
<a name="l00549"></a>00549 <span class="keyword"> </span>{
<a name="l00550"></a>00550 aStream << iFixBuf;
<a name="l00551"></a>00551 }
<a name="l00552"></a>00552
<a name="l00553"></a>00553 <span class="keywordtype">void</span> CClassC::InternalizeL(RReadStream& aStream)
<a name="l00554"></a>00554 {
<a name="l00555"></a>00555 aStream >> iFixBuf;
<a name="l00556"></a>00556 }
<a name="l00557"></a>00557
<a name="l00558"></a>00558 <span class="comment">//***************************************************************</span>
<a name="l00559"></a>00559 <span class="comment">//</span>
<a name="l00560"></a>00560 <span class="comment">// CClassP Implementation</span>
<a name="l00561"></a>00561 <span class="comment">//</span>
<a name="l00562"></a>00562 <span class="comment">//***************************************************************</span>
<a name="l00563"></a>00563 CClassP::CClassP(CStreamStore& aStore)
<a name="l00564"></a>00564 : iStore(aStore)
<a name="l00565"></a>00565 {}
<a name="l00566"></a>00566
<a name="l00567"></a>00567 CClassP::CClassP(CStreamStore& aStore,TStreamId anId)
<a name="l00568"></a>00568 : iStore(aStore), iId(anId)
<a name="l00569"></a>00569 {}
<a name="l00570"></a>00570
<a name="l00571"></a>00571 <a class="code" href="class_c_class_p.html">CClassP</a>* CClassP::NewLC(<span class="keyword">const</span> TDesC& aData,CStreamStore& aStore)
<a name="l00572"></a>00572 {
<a name="l00573"></a>00573 <a class="code" href="class_c_class_p.html">CClassP</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_class_p.html">CClassP</a>(aStore);
<a name="l00574"></a>00574 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00575"></a>00575 <span class="keyword">self</span>->Construct(aData);
<a name="l00576"></a>00576 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00577"></a>00577 }
<a name="l00578"></a>00578
<a name="l00579"></a>00579 <a class="code" href="class_c_class_p.html">CClassP</a>* CClassP::NewLC(CStreamStore& aStore, TStreamId anId)
<a name="l00580"></a>00580 {
<a name="l00581"></a>00581 <a class="code" href="class_c_class_p.html">CClassP</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_class_p.html">CClassP</a>(aStore,anId);
<a name="l00582"></a>00582 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00583"></a>00583 <span class="keyword">self</span>->RestoreL();
<a name="l00584"></a>00584 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00585"></a>00585 }
<a name="l00586"></a>00586
<a name="l00587"></a>00587 <span class="keywordtype">void</span> CClassP::Construct(<span class="keyword">const</span> TDesC& aData)
<a name="l00588"></a>00588 {
<a name="l00589"></a>00589 iFixBuf = aData;
<a name="l00590"></a>00590 }
<a name="l00591"></a>00591
<a name="l00592"></a>00592 <span class="keywordtype">void</span> CClassP::RestoreL()
<a name="l00593"></a>00593 {
<a name="l00594"></a>00594 RStoreReadStream instream;
<a name="l00595"></a>00595 instream.OpenLC(iStore,iId);
<a name="l00596"></a>00596 InternalizeL(instream); <span class="comment">// or we can say instream >> *this;</span>
<a name="l00597"></a>00597 CleanupStack::PopAndDestroy();
<a name="l00598"></a>00598 }
<a name="l00599"></a>00599
<a name="l00600"></a>00600 TStreamId CClassP::StoreL()
<a name="l00601"></a>00601 {
<a name="l00602"></a>00602 RStoreWriteStream outstream;
<a name="l00603"></a>00603 TStreamId <span class="keywordtype">id</span> = outstream.CreateLC(iStore);
<a name="l00604"></a>00604 ExternalizeL(outstream); <span class="comment">// or we can say outstream << *this;</span>
<a name="l00605"></a>00605 outstream.CommitL();
<a name="l00606"></a>00606 CleanupStack::PopAndDestroy();
<a name="l00607"></a>00607 <span class="keywordflow">return</span> id;
<a name="l00608"></a>00608 }
<a name="l00609"></a>00609
<a name="l00610"></a>00610 <span class="keywordtype">void</span> CClassP::ExternalizeL(RWriteStream& aStream)<span class="keyword"> const</span>
<a name="l00611"></a>00611 <span class="keyword"> </span>{
<a name="l00612"></a>00612 aStream << iFixBuf;
<a name="l00613"></a>00613 }
<a name="l00614"></a>00614
<a name="l00615"></a>00615 <span class="keywordtype">void</span> CClassP::InternalizeL(RReadStream& aStream)
<a name="l00616"></a>00616 {
<a name="l00617"></a>00617 aStream >> iFixBuf;
<a name="l00618"></a>00618 }
<a name="l00619"></a>00619
<a name="l00620"></a>00620
<a name="l00621"></a>00621 <span class="comment">//***************************************************************</span>
<a name="l00622"></a>00622 <span class="comment">//</span>
<a name="l00623"></a>00623 <span class="comment">// CClassR Implementation</span>
<a name="l00624"></a>00624 <span class="comment">//</span>
<a name="l00625"></a>00625 <span class="comment">//***************************************************************</span>
<a name="l00626"></a>00626 CClassR::CClassR(CStreamStore& aStore)
<a name="l00627"></a>00627 : iStore(aStore)
<a name="l00628"></a>00628 {}
<a name="l00629"></a>00629
<a name="l00630"></a>00630 CClassR::CClassR(CStreamStore& aStore,TStreamId anId)
<a name="l00631"></a>00631 : iStore(aStore), iId(anId)
<a name="l00632"></a>00632 {}
<a name="l00633"></a>00633
<a name="l00634"></a>00634 <a class="code" href="class_c_class_r.html">CClassR</a>* CClassR::NewLC(<span class="keyword">const</span> TDesC& aData,CStreamStore& aStore)
<a name="l00635"></a>00635 {
<a name="l00636"></a>00636 <a class="code" href="class_c_class_r.html">CClassR</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_class_r.html">CClassR</a>(aStore);
<a name="l00637"></a>00637 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00638"></a>00638 <span class="keyword">self</span>->Construct(aData);
<a name="l00639"></a>00639 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00640"></a>00640 }
<a name="l00641"></a>00641
<a name="l00642"></a>00642 <a class="code" href="class_c_class_r.html">CClassR</a>* CClassR::NewLC(CStreamStore& aStore, TStreamId anId)
<a name="l00643"></a>00643 {
<a name="l00644"></a>00644 <a class="code" href="class_c_class_r.html">CClassR</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_class_r.html">CClassR</a>(aStore,anId);
<a name="l00645"></a>00645 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00646"></a>00646 <span class="keyword">self</span>->RestoreL();
<a name="l00647"></a>00647 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00648"></a>00648 }
<a name="l00649"></a>00649
<a name="l00650"></a>00650 <span class="keywordtype">void</span> CClassR::Construct(<span class="keyword">const</span> TDesC& aData)
<a name="l00651"></a>00651 {
<a name="l00652"></a>00652 iFixBuf = aData;
<a name="l00653"></a>00653 }
<a name="l00654"></a>00654
<a name="l00655"></a>00655 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtFailedMsg,<span class="stringliteral">"Failed to update CClassR stream\n"</span>);
<a name="l00656"></a>00656
<a name="l00657"></a>00657 <span class="keywordtype">void</span> CClassR::ChangeDataL(<span class="keyword">const</span> TDesC& aData)
<a name="l00658"></a>00658 {
<a name="l00659"></a>00659 iFixBuf = aData;
<a name="l00660"></a>00660 TRAPD(error,UpdateStoreL());
<a name="l00661"></a>00661 <span class="keywordflow">if</span> (error!=KErrNone)
<a name="l00662"></a>00662 {
<a name="l00663"></a>00663 iStore.Revert();
<a name="l00664"></a>00664 console->Printf(KTxtFailedMsg);
<a name="l00665"></a>00665 User::Leave(error);
<a name="l00666"></a>00666 }
<a name="l00667"></a>00667 }
<a name="l00668"></a>00668
<a name="l00669"></a>00669 <span class="keywordtype">void</span> CClassR::RestoreL()
<a name="l00670"></a>00670 {
<a name="l00671"></a>00671 RStoreReadStream instream;
<a name="l00672"></a>00672 instream.OpenLC(iStore,iId);
<a name="l00673"></a>00673 InternalizeL(instream); <span class="comment">// or we can say instream >> *this;</span>
<a name="l00674"></a>00674 CleanupStack::PopAndDestroy();
<a name="l00675"></a>00675 }
<a name="l00676"></a>00676
<a name="l00677"></a>00677 TStreamId CClassR::StoreL()
<a name="l00678"></a>00678 {
<a name="l00679"></a>00679 RStoreWriteStream outstream;
<a name="l00680"></a>00680 TStreamId <span class="keywordtype">id</span> = outstream.CreateLC(iStore);
<a name="l00681"></a>00681 ExternalizeL(outstream); <span class="comment">// or we can say outstream << *this;</span>
<a name="l00682"></a>00682 outstream.CommitL();
<a name="l00683"></a>00683 CleanupStack::PopAndDestroy();
<a name="l00684"></a>00684 <span class="keywordflow">return</span> id;
<a name="l00685"></a>00685 }
<a name="l00686"></a>00686
<a name="l00687"></a>00687 <span class="keywordtype">void</span> CClassR::UpdateStoreL()
<a name="l00688"></a>00688 {
<a name="l00689"></a>00689 RStoreWriteStream outstream;
<a name="l00690"></a>00690 outstream.ReplaceLC(iStore,iId);
<a name="l00691"></a>00691 ExternalizeL(outstream); <span class="comment">// or we can say outstream << *this;</span>
<a name="l00692"></a>00692 outstream.CommitL();
<a name="l00693"></a>00693 CleanupStack::PopAndDestroy();
<a name="l00694"></a>00694 iStore.CommitL();<span class="comment">// commit the changes to the store</span>
<a name="l00695"></a>00695 }
<a name="l00696"></a>00696
<a name="l00697"></a>00697 <span class="keywordtype">void</span> CClassR::ExternalizeL(RWriteStream& aStream)<span class="keyword"> const</span>
<a name="l00698"></a>00698 <span class="keyword"> </span>{
<a name="l00699"></a>00699 aStream << iFixBuf;
<a name="l00700"></a>00700 }
<a name="l00701"></a>00701
<a name="l00702"></a>00702 <span class="keywordtype">void</span> CClassR::InternalizeL(RReadStream& aStream)
<a name="l00703"></a>00703 {
<a name="l00704"></a>00704 aStream >> iFixBuf;
<a name="l00705"></a>00705 }
<a name="l00706"></a>00706
<a name="l00707"></a>00707 <span class="comment">//***************************************************************</span>
<a name="l00708"></a>00708 <span class="comment">//</span>
<a name="l00709"></a>00709 <span class="comment">// TExampleIndex Implementation</span>
<a name="l00710"></a>00710 <span class="comment">//</span>
<a name="l00711"></a>00711 <span class="comment">//***************************************************************</span>
<a name="l00712"></a>00712
<a name="l00713"></a>00713 TStreamId TExampleIndex::StoreL(CStreamStore& aStore)
<a name="l00714"></a>00714 {
<a name="l00715"></a>00715 RStoreWriteStream outstream;
<a name="l00716"></a>00716 TStreamId <span class="keywordtype">id</span> = outstream.CreateLC(aStore);
<a name="l00717"></a>00717 ExternalizeL(outstream); <span class="comment">// or we can say outstream << *this;</span>
<a name="l00718"></a>00718 outstream.CommitL();
<a name="l00719"></a>00719 CleanupStack::PopAndDestroy();
<a name="l00720"></a>00720 <span class="keywordflow">return</span> id;
<a name="l00721"></a>00721 }
<a name="l00722"></a>00722
<a name="l00723"></a>00723 <span class="keywordtype">void</span> TExampleIndex::RestoreL(CStreamStore& aStore, TStreamId anId)
<a name="l00724"></a>00724 {
<a name="l00725"></a>00725 RStoreReadStream instream;
<a name="l00726"></a>00726 instream.OpenLC(aStore,anId);
<a name="l00727"></a>00727 InternalizeL(instream);
<a name="l00728"></a>00728 CleanupStack::PopAndDestroy();
<a name="l00729"></a>00729 }
<a name="l00730"></a>00730
<a name="l00731"></a>00731 <span class="keywordtype">void</span> TExampleIndex::ExternalizeL(RWriteStream& aStream)<span class="keyword"> const</span>
<a name="l00732"></a>00732 <span class="keyword"> </span>{
<a name="l00733"></a>00733 aStream << iPid;
<a name="l00734"></a>00734 aStream << iRid;
<a name="l00735"></a>00735 aStream << iABCid;
<a name="l00736"></a>00736 }
<a name="l00737"></a>00737
<a name="l00738"></a>00738 <span class="keywordtype">void</span> TExampleIndex::InternalizeL(RReadStream& aStream)
<a name="l00739"></a>00739 {
<a name="l00740"></a>00740 aStream >> iPid;
<a name="l00741"></a>00741 aStream >> iRid;
<a name="l00742"></a>00742 aStream >> iABCid;
<a name="l00743"></a>00743 }
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