Package org.apache.commons.pool2.impl

Object pooling API implementations.

GenericObjectPool (GenericKeyedObjectPool) provides a more robust (but also more complicated) implementation of ObjectPool (KeyedObjectPool).

SoftReferenceObjectPool provides a SoftReference based ObjectPool.

See also the org.apache.commons.pool2 package.

Interface Summary

Interface	Description
CallStack	Strategy for obtaining and printing the current call stack.
DefaultPooledObjectInfoMBean	The interface that defines the information about pooled objects that will be exposed via JMX.
EvictionPolicy<T>	To provide a custom eviction policy (i.e.
GenericKeyedObjectPoolMXBean<K>	Defines the methods that will be made available via JMX.
GenericObjectPoolMXBean	Defines the methods that will be made available via JMX.

Class Summary

Class	Description
AbandonedConfig	Configuration settings for abandoned object removal.
BaseGenericObjectPool<T>	Base class that provides common functionality for GenericObjectPool and GenericKeyedObjectPool.
BaseGenericObjectPool.IdentityWrapper<T>	Wrapper for objects under management by the pool.
BaseGenericObjectPool.StatsStore	Maintains a cache of values for a single metric and reports statistics on the cached values.
BaseObjectPoolConfig<T>	Provides the implementation for the common attributes shared by the sub-classes.
CallStackUtils	Utility methods for CallStack.
DefaultEvictionPolicy<T>	Provides the default implementation of EvictionPolicy used by the pools.
DefaultPooledObject<T>	This wrapper is used to track the additional information, such as state, for the pooled objects.
DefaultPooledObjectInfo	Implements providing information on pooled objects via JMX.
EvictionConfig	This class is used by pool implementations to pass configuration information to EvictionPolicy instances.
EvictionTimer	Provides a shared idle object eviction timer for all pools.
EvictionTimer.EvictorThreadFactory	Thread factory that creates a daemon thread, with the context class loader from this class.
EvictionTimer.Reaper	Task that removes references to abandoned tasks and shuts down the executor if there are no live tasks left.
EvictionTimer.WeakRunner<R extends java.lang.Runnable>	Runnable that runs the referent of a weak reference.
GenericKeyedObjectPool<K,T>	A configurable KeyedObjectPool implementation.
GenericKeyedObjectPool.ObjectDeque<S>	Maintains information on the per key queue for a given key.
GenericKeyedObjectPoolConfig<T>	A simple structure encapsulating the configuration for a GenericKeyedObjectPool.
GenericObjectPool<T>	A configurable ObjectPool implementation.
GenericObjectPoolConfig<T>	A simple structure encapsulating the configuration for a GenericObjectPool.
InterruptibleReentrantLock	This sub-class was created to expose the waiting threads so that they can be interrupted when the pool using the queue that uses this lock is closed.
LinkedBlockingDeque<E>	An optionally-bounded blocking deque based on linked nodes.
LinkedBlockingDeque.Node<E>	Doubly-linked list node class.
NoOpCallStack	CallStack strategy using no-op implementations of all functionality.
PooledSoftReference<T>	Extension of DefaultPooledObject to wrap pooled soft references.
PoolImplUtils	Implementation specific utilities.
SecurityManagerCallStack	A CallStack strategy using a SecurityManager.
SecurityManagerCallStack.PrivateSecurityManager	A custom security manager.
SecurityManagerCallStack.Snapshot	A snapshot of a class stack.
SoftReferenceObjectPool<T>	A SoftReference based ObjectPool.
ThrowableCallStack	CallStack strategy that uses the stack trace from a Throwable.
ThrowableCallStack.Snapshot	A snapshot of a throwable.