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SPRNET-1050 - Provide sample configuration for using MultiDelegatingDbProvider

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markpollack
2008-10-09 00:51:06 +00:00
parent 5724e67b76
commit d10a266a0e
1 changed files with 37 additions and 7 deletions
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44
doc/reference/src/dbprovider.xml
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@@ -477,13 +477,43 @@
is configured using the dictionary property
<literal>TargetDbProviders</literal>. The key of this dictionary
contains the name of a dbProvider and its value is a dbProvider object.
(You can also provide this dictionary as a constructor argument.) During
request processing, once you have determined which target dbProvider
should be use, in this example database1ProviderName, you should execute
the following code
<literal>LogicalThreadContext.SetData("dbProviderName",
"database1ProviderName")</literal> and then call the data access
layer.</para>
(You can also provide this dictionary as a constructor argument.)
<para>During request processing, once you have determined which target
dbProvider should be use, in this example database1ProviderName, you
should execute the following code is you are using Spring 1.2 M1 or
later</para>
<programlisting language="csharp">// Spring 1.2 M1 or later
LogicalThreadContext.SetData(MultiDelegatingDbProvider.CURRENT_DBPROVIDER_SLOTNAME, "database1ProviderName")</programlisting>
<para>and the following ocde if you are using earlier versions</para>
<programlisting language="csharp">// Prior to Spring 1.2 M1
<literal>LogicalThreadContext.SetData("dbProviderName", "database1ProviderName")</literal> </programlisting>
<para>and then call the data access layer.</para>
<para>Here is a sample configuration to build up an object definition
for <classname>MultiDelegatingDbProvider</classname>.</para>
<programlisting language="csharp">&lt;db:provider id="CreditAndDebitsDbProvider"
provider="System.Data.SqlClient"
connectionString="Data Source=MARKT60\SQL2005;Initial Catalog=CreditsAndDebits;User ID=springqa; Password=springqa"/&gt;
&lt;db:provider id="CreditDbProvider"
provider="System.Data.SqlClient"
connectionString="Data Source=MARKT60\SQL2005;Initial Catalog=Credits;User ID=springqa; Password=springqa"/&gt;
&lt;object id="dbProviderDictionary" type="Spring.Collections.SynchronizedHashtable, Spring.Core"&gt;
&lt;property name="['DbProvider1']" ref="CreditAndDebitsDbProvider"/&gt;
&lt;property name="['DbProvider2']" ref="CreditDbProvider"/&gt;
&lt;/object&gt;
&lt;object id="DbProvider" type="Spring.Data.MultiDelegatingDbProvider, Spring.Data"&gt;
&lt;property name="TargetDbProviders" ref="dbProviderDictionary"/&gt;
&lt;/object&gt;</programlisting>
<para></para>
</section>