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    10 <!DOCTYPE concept

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    12 <concept id="GUID-9372CB71-2C75-5B3D-81EA-B4257C3162C7" xml:lang="en"><title>Store

    13 streams example code</title><prolog><metadata><keywords/></metadata></prolog><conbody>

    14 <section id="GUID-CFC06048-6EAF-563E-A7BC-7CB4C99AA4C7"><title>WriteToMany:

    15 externalizing to more than one stream/deferred loading</title> <p><b>Description</b> </p> <p>This

    16 example shows how a network of objects can be written to more than one stream

    17 in a direct file store, and how the loading of an object from the store into

    18 memory may be deferred. </p> <p><b>Download</b> </p> <p>Download the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-3b74b037-3596-4387-b60c-30f55daa1cdf.zip" scope="external">WriteToMany.zip</xref>.</p><p>Download some additional files

    19 required by the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-89fa6105-e749-4e5f-a233-a000e3b9390b.zip" scope="external">CommonFramework.zip</xref>.</p><p>View the source code: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-3b74b037-3596-4387-b60c-30f55daa1cdf.html" scope="peer">browse</xref>. View the additional files: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-89fa6105-e749-4e5f-a233-a000e3b9390b.html" scope="peer">browse</xref>.</p> <p><b>Class summary</b></p><ul>

    20 <li><p><xref href="GUID-346D4908-15C7-3F15-945F-D561E774022D.dita"><apiname>RStoreWriteStream</apiname></xref> -Supports the writing of a stream

    21 to a store.</p></li>

    22 <li><p><xref href="GUID-4FA6EE6C-5B4E-39E0-B888-ABDE19985976.dita"><apiname>RStoreReadStream</apiname></xref> - Supports the opening and manipulation

    23 of an existing stream in a store.</p></li>

    24 <li><p><xref href="GUID-8B713854-7858-3E02-8A1C-B3E6C1C9EA85.dita"><apiname>CDirectFileStore</apiname></xref> - Direct file store.</p></li>

    25 <li><p><xref href="GUID-1C4D4AFD-85E2-3D5D-B704-D1FA0E5E7DA2.dita"><apiname>TStreamId</apiname></xref> - Provides unique identification for stream

    26 within a store.</p></li>

    27 <li><p><xref href="GUID-D10FA32F-32F7-3488-9AAC-CB95270EA006.dita"><apiname>TSwizzle</apiname></xref> - Maintains a dual representation for an

    28 object. </p></li>

    29 </ul> </section>

    30 <section id="GUID-8E522D0B-C74C-5B14-9483-827DC79DEF46"><title>WriteToEmbedded:

    31 using an embedded store</title> <p><b>Description</b> </p> <p>This example

    32 shows how an object can be externalized to a store embedded within a permanent

    33 file store. </p> <p><b>Download</b> </p> <p>Download the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-2e15aa67-747d-4457-8f6a-3fe2a423861a.zip" scope="external">WriteToEmbedded.zip</xref>.</p><p>Download some additional

    34 files required by the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-89fa6105-e749-4e5f-a233-a000e3b9390b.zip" scope="external">CommonFramework.zip</xref>.</p><p>View the source code: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-2e15aa67-747d-4457-8f6a-3fe2a423861a.html" scope="peer">browse</xref>. View the additional files: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-89fa6105-e749-4e5f-a233-a000e3b9390b.html" scope="peer">browse</xref></p> <p><b>Class summary</b></p><ul>

    35 <li><p><xref href="GUID-346D4908-15C7-3F15-945F-D561E774022D.dita"><apiname>RStoreWriteStream</apiname></xref> - Supports the writing of a stream

    36 to a store.</p></li>

    37 <li><p><xref href="GUID-4FA6EE6C-5B4E-39E0-B888-ABDE19985976.dita"><apiname>RStoreReadStream</apiname></xref> - Supports the opening and manipulation

    38 of an existing stream in a store.</p></li>

    39 <li><p><xref href="GUID-A61CA45C-B19A-33FC-8233-76530DCDF03C.dita"><apiname>CPermanentFileStore</apiname></xref> - Permanent file store.</p></li>

    40 <li><p><xref href="GUID-1C4D4AFD-85E2-3D5D-B704-D1FA0E5E7DA2.dita"><apiname>TStreamId</apiname></xref> - Provides unique identification for stream

    41 within a store.</p></li>

    42 <li><p><xref href="GUID-F2EC3A9D-5F4B-3C98-98DC-44394C54B6DE.dita"><apiname>CEmbeddedStore</apiname></xref> - Encapsulates an embedded store.</p></li>

    43 <li><p><xref href="GUID-21637329-EC49-39AD-8986-A22289D8CFE8.dita"><apiname>CPersistentStore</apiname></xref> - Persistent store abstract base

    44 class. It provides the behaviour for setting and retrieving the root stream

    45 id.</p></li>

    46 </ul> </section>

    47 <section id="GUID-4C25485D-7FE0-5699-86E7-F92BEE6BFADA"><title>StoreMap: using

    48 a store map</title> <p><b>Description</b> </p> <p>This example demonstrates

    49 the streaming of a compound object to multiple streams with deferred loading.

    50 It also illustrates the use of a store map (<codeph>CStoreMap</codeph>). </p><p><b>Related

    51 APIs</b></p><ul>

    52 <li><p><xref href="GUID-D3E27885-46A1-35C1-97E5-17E4EDF72E56.dita"><apiname>CStoreMap</apiname></xref> - Store map used when externalising swizzled

    53 in-memory objects.</p></li>

    54 </ul> <p><b>Download</b> </p> <p>Download the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-901ebb49-18f8-4c15-81d9-79b22e2beb87.zip" scope="external">StoreMap.zip</xref>.</p><p>Download some additional files

    55 required by the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-89fa6105-e749-4e5f-a233-a000e3b9390b.zip" scope="external">CommonFramework.zip</xref>.</p><p>View the source code: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-901ebb49-18f8-4c15-81d9-79b22e2beb87.html" scope="peer">browse</xref>. View the additional files: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-89fa6105-e749-4e5f-a233-a000e3b9390b.html" scope="peer">browse</xref>.</p> <p><b>Class summary</b></p><ul>

    56 <li><p><xref href="GUID-346D4908-15C7-3F15-945F-D561E774022D.dita"><apiname>RStoreWriteStream</apiname></xref></p></li>

    57 <li><p><xref href="GUID-4FA6EE6C-5B4E-39E0-B888-ABDE19985976.dita"><apiname>RStoreReadStream</apiname></xref></p></li>

    58 <li><p><xref href="GUID-A61CA45C-B19A-33FC-8233-76530DCDF03C.dita"><apiname>CPermanentFileStore</apiname></xref></p></li>

    59 <li><p><xref href="GUID-D3E27885-46A1-35C1-97E5-17E4EDF72E56.dita"><apiname>CStoreMap</apiname></xref></p></li>

    60 <li><p><xref href="GUID-D10FA32F-32F7-3488-9AAC-CB95270EA006.dita"><apiname>TSwizzle</apiname></xref></p></li>

    61 </ul> </section>

    62 </conbody></concept>