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<html>
<head>
<title>Package Documentation for org.apache.tomcat.dbcp.pool2</title>
</head>
<body>
<p>
Object pooling API.
</p>
<p>
The <code>org.apache.tomcat.dbcp.pool2</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>{@link org.apache.tomcat.dbcp.pool2.ObjectPool ObjectPool}</dt>
<dd>
defines a simple object pooling interface, with methods for
borrowing instances from and returning them to the pool.
</dd>
<dt>{@link org.apache.tomcat.dbcp.pool2.PooledObjectFactory PooledObjectFactory}</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>
The <code>pool</code> package also provides a keyed pool interface,
which pools instances of multiple types, accessed according to an
arbitrary key. See
{@link org.apache.tomcat.dbcp.pool2.KeyedObjectPool KeyedObjectPool} and
{@link org.apache.tomcat.dbcp.pool2.KeyedPooledObjectFactory
KeyedPooledObjectFactory}.
</p>
</body>
</html>