org.postgresql.ds.common

Class PGObjectFactory

java.lang.Object

org.postgresql.ds.common.PGObjectFactory

All Implemented Interfaces:

ObjectFactory

Direct Known Subclasses:

PGXADataSourceFactory

public class PGObjectFactory
extends Object
implements ObjectFactory

Returns a DataSource-ish thing based on a JNDI reference. In the case of a SimpleDataSource or ConnectionPool, a new instance is created each time, as there is no connection state to maintain. In the case of a PoolingDataSource, the same DataSource will be returned for every invocation within the same VM/ClassLoader, so that the state of the connections in the pool will be consistent.

Author:

Aaron Mulder (ammulder@chariotsolutions.com)

Constructor Summary

Constructors

Constructor and Description
PGObjectFactory()

Method Summary

Methods

Modifier and Type	Method and Description
Object	getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment) Dereferences a PostgreSQL DataSource.
protected String	getProperty(Reference ref, String s)
protected Object	loadBaseDataSource(BaseDataSource ds, Reference ref)

Methods inherited from class java.lang.Object

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

Constructor Detail

PGObjectFactory

public PGObjectFactory()

Method Detail

getObjectInstance

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

Dereferences a PostgreSQL DataSource. Other types of references are ignored.

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, or null if no name is specified.

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 the object.

Returns:

The object created; null if an object cannot be created.

Throws:

Exception - if this object factory encountered an exception while attempting to create an object, and no other object factories are to be tried.

See Also:

NamingManager.getObjectInstance(java.lang.Object, javax.naming.Name, javax.naming.Context, java.util.Hashtable<?, ?>), NamingManager.getURLContext(java.lang.String, java.util.Hashtable<?, ?>)

loadBaseDataSource

protected Object loadBaseDataSource(BaseDataSource ds,
                        Reference ref)

getProperty

protected String getProperty(Reference ref,
                 String s)