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java.lang.Objectorg.apache.cayenne.conn.ContainerPoolFactory
public class ContainerPoolFactory
Basic JNDI object factory that creates an instance of
PoolManager
that has been configured based on the
RefAddr
values of the specified Reference
.
Here is a sample Tomcat 4.x configuration that sets this class as a default factory for javax.sql.DataSource objects:
<ResourceParams name="jdbc/mydb">
<parameter>
<name>factory</name>
<value>org.apache.cayenne.conn.ContainerPoolFactory</value>
</parameter>
<parameter>
<name>username</name>
<value>andrei</value>
</parameter>
<parameter>
<name>password</name>
<value>bla-bla</value>
</parameter>
<parameter>
<name>driver</name>
<value>org.gjt.mm.mysql.Driver</value>
</parameter>
<parameter>
<name>url</name>
<value>jdbc:mysql://noise/cayenne</value>
</parameter>
<parameter>
<name>min</name>
<value>1</value>
</parameter>
<parameter>
<name>max</name>
<value>3</value>
</parameter>
</ResourceParams>
After ContainerPoolFactory was configured to be used within the container (see above for Tomcat example), you can reference your "jdbc/mydb" DataSource in web application deployment descriptor like that (per Servlet Specification):
<resource-ref>
<es-ref-name>jdbc/mydb</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
Constructor Summary | |
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ContainerPoolFactory()
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Method Summary | |
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Object |
getObjectInstance(Object obj,
Name name,
Context nameCtx,
Hashtable environment)
Creates and returns a new PoolManager instance. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ContainerPoolFactory()
Method Detail |
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public Object getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable environment) throws Exception
Creates and returns a new PoolManager
instance. If no
instance can be created, returns null
instead.
getObjectInstance
in interface ObjectFactory
obj
- The possibly null object containing location or
reference information that can be used in creating an objectname
- The name of this object relative to nameCtx
nameCtx
- The context relative to which the name
parameter is specified, or null
if name
is relative to the default initial contextenvironment
- The possibly null environment that is used in
creating this object
Exception
- if an exception occurs creating the instance
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