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| <document> |
| <properties> |
| <title>Home</title> |
| <author email="commons-dev@jakarta.apache.org">Commons Documentation Team</author> |
| <author email="rwaldhoff@apache.org">Rodney Waldhoff</author> |
| <revision>$Id: index.xml,v 1.1 2002/01/15 01:20:52 rwaldhoff Exp $</revision> |
| </properties> |
| |
| <body> |
| <section name="The Pool Component"> |
| <!-- this is something of a place-holder, borrowed from org.apache.commons.pool's package.html --> |
| <p> |
| The <code>org.apache.commons.pool</code> package defines a simple |
| interface for a pool of object instances, and a handful of base |
| classes that may be useful when creating pool implementations. |
| </p> |
| <p> |
| The <code>pool</code> package itself doesn't define a specific object |
| pooling implementation, but rather a contract that implementations may |
| support in order to be fully interchangeable. |
| </p> |
| <p> |
| The <code>pool</code> package separates the way in which instances are |
| pooled from the way in which they are created, resulting in a pair of |
| interfaces: |
| </p> |
| <dl> |
| <dt><code>ObjectPool</code></dt> |
| <dd> |
| defines a simple object pooling interface, with methods for |
| borrowing instances from and returning them to the pool. |
| </dd> |
| <dt><code>PoolableObjectFactory</code></dt> |
| <dd> |
| defines lifecycle methods for object instances contained within a pool. |
| By associating a factory with a pool, the pool can create new object |
| instances as needed. |
| </dd> |
| </dl> |
| <p> |
| <code>ObjectPoolFactory</code> |
| defines a simple factory for <code>ObjectPool</code>s, which may be |
| useful for some applications. |
| </p> |
| <p> |
| The <code>pool</code> package also provides a keyed pool interface, |
| which pools instances of multiple types, accessed according to an |
| arbitrary key. See |
| <code>KeyedObjectPool</code>, |
| <code>KeyedPoolableObjectFactory</code>, |
| and |
| <code>KeyedObjectPoolFactory</code>. |
| </p> |
| </section> |
| </body> |
| </document> |