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<concept id="GUID-15967AB3-B03C-5DAA-A784-D25ABFFC995E" xml:lang="en"><title>File

Stores Example Code</title><shortdesc>These examples demonstrate aspects of streaming and file stores.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<section id="GUID-BA72C136-24C3-419E-92B9-8BA8E84D5230"><title>Download</title> <p>Download the examples: </p><p><xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-9f94a7e6-3189-40ed-abfd-65ee28cba96c.zip" scope="external">WriteDirectFS.zip</xref>, <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-756e5358-63aa-4a1a-927f-363114b2c8e3.zip" scope="external">WritePermFS1.zip</xref> and <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-85ccfa50-732b-4080-993e-f6b025543326.zip" scope="external">WritePermFS2.zip</xref></p><p>Download the additional files

required for all the examples: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-89fa6105-e749-4e5f-a233-a000e3b9390b.zip" scope="external">CommonFramework.zip</xref>.</p> </section>

<section id="GUID-8C6125A5-AB9A-5D5D-BED6-7EE040400CA4"><title>WriteDirectFS:

externalising a network of objects to a direct file store</title> <p><b>Example

code</b> </p><p>Click: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-9f94a7e6-3189-40ed-abfd-65ee28cba96c.html" scope="peer">browse</xref> to view the example code.</p><p>View the additional

files: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-89fa6105-e749-4e5f-a233-a000e3b9390b.html" scope="peer">CommonFramework</xref>.</p> <p><b>Description</b> </p> <p>This

example externalizes a network of objects to a direct file store and then

internalizes them again. It demonstrates the persistence of a direct file

store and the idea of the root stream. </p><p><b>Class summary</b></p><ul>

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

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

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

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

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

</ul> </section>

<section id="GUID-BB30B109-E407-5253-841F-5BBBA4079A06"><title>WritePermFS1:

externalising a network of objects to a permanent file store</title> <p><b>Example

code</b> </p><p> Click: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-756e5358-63aa-4a1a-927f-363114b2c8e3.html" scope="peer">browse</xref> to view the example code.</p> <p><b>Description</b> </p> <p>This

example constructs and writes a network of objects to a permanent file store.

Each object is then loaded back in, one at a time, its content displayed at

the console and then destroyed. </p><p><b>Class summary</b></p><ul>

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

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

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

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

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

</ul> </section>

<section id="GUID-394D948C-13AB-505F-97E8-5AB3DCAEED45"><title>WritePermFS2:

externalising a network of objects to a permanent file store</title> <p><b>Example

code</b> </p><p>Click: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-85ccfa50-732b-4080-993e-f6b025543326.html" scope="peer">browse </xref> to view the example code.</p><p><b>Description</b> </p> <p>This

example shows further use of a permanent file store. </p><p><b>Class summary</b></p><ul>

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

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

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

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

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

</ul> </section>