org.apache.cayenne.conn

## Class ContainerPoolFactory

- java.lang.Object
- - org.apache.cayenne.conn.ContainerPoolFactory

- All Implemented Interfaces:
    ObjectFactory

  Deprecated.
  since 3.1. This class does not belong in Cayenne, as Cayenne no longer attempts to provide appserver pieces. End users should not need this class and should use their container's preferred approach to map a DataSource instead.

      @Deprecated
      public class ContainerPoolFactory
      extends Object
      implements ObjectFactory

  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

    Constructors
    Constructor and Description
    `ContainerPoolFactory()` Deprecated.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `Object` | `getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable environment)` Deprecated. Creates and returns a new `PoolManager` instance.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### ContainerPoolFactory

          public ContainerPoolFactory()

      Deprecated.

  - ### Method Detail

    - #### getObjectInstance

          public Object getObjectInstance(Object obj,
                                 Name name,
                                 Context nameCtx,
                                 Hashtable environment)
                                   throws Exception

      Deprecated.

      Creates and returns a new `PoolManager` instance. If no instance can be created, returns `null` instead.

      Specified by:
        `getObjectInstance` in interface `ObjectFactory`
      Parameters:
        `obj` - The possibly null object containing location or reference information that can be used in creating an object
        `name` - 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 context
        `environment` - The possibly null environment that is used in creating this object
      Throws:
        `Exception` - if an exception occurs creating the instance

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