Apache Commons Pool 2.12.0 · 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

Modifier and Type	Interface and Description
public interface	CallStack Strategy for obtaining and printing the current call stack.
public interface	DefaultPooledObjectInfoMBean The interface that defines the information about pooled objects that will be exposed via JMX.
public interface	EvictionPolicy< the type of objects in the pool T> To provide a custom eviction policy (i.e. something other than `DefaultEvictionPolicy` for a pool, users must provide an implementation of this interface that provides the required eviction policy.
public interface	GenericKeyedObjectPoolMXBean< The type of keys maintained by the pool. K> Defines the methods that will be made available via JMX.
public interface	GenericObjectPoolMXBean Defines the methods that will be made available via JMX.

Class Summary

Modifier and Type	Class and Description
public class	AbandonedConfig Configuration settings for abandoned object removal.
public abstract class	BaseGenericObjectPool< Type of element pooled in this pool. T> Base class that provides common functionality for `GenericObjectPool` and `GenericKeyedObjectPool`.
public abstract class	BaseObjectPoolConfig< Type of element pooled. T> Provides the implementation for the common attributes shared by the sub-classes.
public class	CallStackUtils Utility methods for `CallStack`.
public class	DefaultEvictionPolicy< the type of objects in the pool. T> Provides the default implementation of `EvictionPolicy` used by the pools.
public class	DefaultPooledObject< the type of object in the pool T> This wrapper is used to track the additional information, such as state, for the pooled objects.
public class	DefaultPooledObjectInfo Implementation of object that is used to provide information on pooled objects via JMX.
public class	EvictionConfig This class is used by pool implementations to pass configuration information to `EvictionPolicy` instances.
pack-priv class	EvictionTimer Provides a shared idle object eviction timer for all pools.
public class	GenericKeyedObjectPool< The type of keys maintained by this pool. K, Type of element pooled in this pool. T> A configurable `KeyedObjectPool` implementation.
public class	GenericKeyedObjectPoolConfig< Type of element pooled. T> A simple structure encapsulating the configuration for a `GenericKeyedObjectPool`.
public class	GenericObjectPool< Type of element pooled in this pool. T> A configurable `ObjectPool` implementation.
public class	GenericObjectPoolConfig< Type of element pooled. T> A simple structure encapsulating the configuration for a `GenericObjectPool`.
pack-priv class	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.
pack-priv class	LinkedBlockingDeque< the type of elements held in this collection Note: This was copied from Apache Harmony and modified to suit the needs of Commons Pool. E> An optionally-bounded blocking deque based on linked nodes.
public class	NoOpCallStack CallStack strategy using no-op implementations of all functionality.
public class	PooledSoftReference< the type of the underlying object that the wrapped SoftReference refers to. T> Extension of `DefaultPooledObject` to wrap pooled soft references.
pack-priv class	PoolImplUtils Implementation specific utilities.
public class	SecurityManagerCallStack A `CallStack` strategy using a `SecurityManager`.
public class	SoftReferenceObjectPool< Type of element pooled in this pool. T> A `SoftReference` based `ObjectPool`.
public class	ThrowableCallStack CallStack strategy that uses the stack trace from a `Throwable`.

Package org.apache.commons.pool2.impl

Interface Summary

Class Summary