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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.aop.target

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.springframework.aop.target .AbstractBeanFactoryBasedTargetSource

org.springframework.aop.target .AbstractPrototypeBasedTargetSource

org.springframework.aop.target .AbstractPoolingTargetSource

org.springframework.aop.target .CommonsPoolTargetSource

CommonsPoolTargetSource

public class CommonsPoolTargetSource extends AbstractPoolingTargetSource implements PoolableObjectFactory(Code)

TargetSource implementation that holds objects in a configurable Jakarta Commons Pool.

By default, an instance of GenericObjectPool is created. Subclasses may change the type of ObjectPool used by overriding the createObjectPool() method.

Provides many configuration properties mirroring those of the Commons Pool GenericObjectPool class; these properties are passed to the GenericObjectPool during construction. If creating a subclass of this class to change the ObjectPool implementation type, pass in the values of configuration properties that are relevant to your chosen implementation.

The testOnBorrow, testOnReturn and testWhileIdle properties are explictly not mirrored because the implementation of PoolableObjectFactory used by this class does not implement meaningful validation. All exposed Commons Pool properties use the corresponding Commons Pool defaults: for example,
author:
   Rod Johnson
author:
   Rob Harrop
author:
   Juergen Hoeller
See Also:   GenericObjectPool
See Also:   CommonsPoolTargetSource.createObjectPool()
See Also:   CommonsPoolTargetSource.setMaxSize
See Also:   CommonsPoolTargetSource.setMaxIdle
See Also:   CommonsPoolTargetSource.setMinIdle
See Also:   CommonsPoolTargetSource.setMaxWait
See Also:   CommonsPoolTargetSource.setTimeBetweenEvictionRunsMillis
See Also:   CommonsPoolTargetSource.setMinEvictableIdleTimeMillis

Constructor Summary
public	CommonsPoolTargetSource() Create a CommonsPoolTargetSource with default settings.

Method Summary
public void	activateObject(Object obj)
protected ObjectPool	createObjectPool() Subclasses can override this if they want to return a specific Commons pool.
final protected void	createPool() Creates and holds an ObjectPool instance.
public void	destroy() Closes the underlying `ObjectPool` when destroying this object.
public void	destroyObject(Object obj)
public int	getActiveCount()
public int	getIdleCount()
public int	getMaxIdle() Return the maximum number of idle objects in the pool.
public long	getMaxWait() Return the maximum waiting time for fetching an object from the pool.
public long	getMinEvictableIdleTimeMillis() Return the minimum time that an idle object can sit in the pool.
public int	getMinIdle() Return the minimum number of idle objects in the pool.
public Object	getTarget() Borrow an object from the `ObjectPool`.
public long	getTimeBetweenEvictionRunsMillis() Return the time between eviction runs that check idle objects.
public byte	getWhenExhaustedAction() Return the action to take when the pool is exhausted.
public Object	makeObject()
public void	passivateObject(Object obj)
public void	releaseTarget(Object target) Returns the specified object to the underlying `ObjectPool`.
public void	setMaxIdle(int maxIdle) Set the maximum number of idle objects in the pool.
public void	setMaxWait(long maxWait) Set the maximum waiting time for fetching an object from the pool.
public void	setMinEvictableIdleTimeMillis(long minEvictableIdleTimeMillis) Set the minimum time that an idle object can sit in the pool before it becomes subject to eviction.
public void	setMinIdle(int minIdle) Set the minimum number of idle objects in the pool.
public void	setTimeBetweenEvictionRunsMillis(long timeBetweenEvictionRunsMillis) Set the time between eviction runs that check idle objects whether they have been idle for too long or have become invalid.
public void	setWhenExhaustedAction(byte whenExhaustedAction) Set the action to take when the pool is exhausted.
public void	setWhenExhaustedActionName(String whenExhaustedActionName) Set the action to take when the pool is exhausted.
public boolean	validateObject(Object obj)

Constructor Detail

CommonsPoolTargetSource
public CommonsPoolTargetSource()(Code)
	Create a CommonsPoolTargetSource with default settings. Default maximum size of the pool is 8. See Also: CommonsPoolTargetSource.setMaxSize See Also: GenericObjectPool.setMaxActive

Method Detail

activateObject
public void activateObject(Object obj)(Code)

createObjectPool
protected ObjectPool createObjectPool()(Code)
	Subclasses can override this if they want to return a specific Commons pool. They should apply any configuration properties to the pool here. Default is a GenericObjectPool instance with the given pool size. an empty Commons `ObjectPool`. See Also: org.apache.commons.pool.impl.GenericObjectPool See Also: CommonsPoolTargetSource.setMaxSize

createPool
final protected void createPool()(Code)
	Creates and holds an ObjectPool instance. See Also: CommonsPoolTargetSource.createObjectPool()

destroy
public void destroy() throws Exception(Code)
	Closes the underlying `ObjectPool` when destroying this object.

destroyObject
public void destroyObject(Object obj) throws Exception(Code)

getActiveCount
public int getActiveCount() throws UnsupportedOperationException(Code)

getIdleCount
public int getIdleCount() throws UnsupportedOperationException(Code)

getMaxIdle
public int getMaxIdle()(Code)
	Return the maximum number of idle objects in the pool.

getMaxWait
public long getMaxWait()(Code)
	Return the maximum waiting time for fetching an object from the pool.

getMinEvictableIdleTimeMillis
public long getMinEvictableIdleTimeMillis()(Code)
	Return the minimum time that an idle object can sit in the pool.

getMinIdle
public int getMinIdle()(Code)
	Return the minimum number of idle objects in the pool.

getTarget
public Object getTarget() throws Exception(Code)
	Borrow an object from the `ObjectPool`.

getTimeBetweenEvictionRunsMillis
public long getTimeBetweenEvictionRunsMillis()(Code)
	Return the time between eviction runs that check idle objects.

getWhenExhaustedAction
public byte getWhenExhaustedAction()(Code)
	Return the action to take when the pool is exhausted.

makeObject
public Object makeObject() throws BeansException(Code)

passivateObject
public void passivateObject(Object obj)(Code)

releaseTarget
public void releaseTarget(Object target) throws Exception(Code)
	Returns the specified object to the underlying `ObjectPool`.

setMaxIdle
public void setMaxIdle(int maxIdle)(Code)
	Set the maximum number of idle objects in the pool. Default is 8. See Also: GenericObjectPool.setMaxIdle

setMaxWait
public void setMaxWait(long maxWait)(Code)
	Set the maximum waiting time for fetching an object from the pool. Default is -1, waiting forever. See Also: GenericObjectPool.setMaxWait

setMinEvictableIdleTimeMillis
public void setMinEvictableIdleTimeMillis(long minEvictableIdleTimeMillis)(Code)
	Set the minimum time that an idle object can sit in the pool before it becomes subject to eviction. Default is 1800000 (30 minutes). Note that eviction runs need to be performed to take this setting into effect. See Also: CommonsPoolTargetSource.setTimeBetweenEvictionRunsMillis See Also: GenericObjectPool.setMinEvictableIdleTimeMillis

setMinIdle
public void setMinIdle(int minIdle)(Code)
	Set the minimum number of idle objects in the pool. Default is 0. See Also: GenericObjectPool.setMinIdle

setTimeBetweenEvictionRunsMillis
public void setTimeBetweenEvictionRunsMillis(long timeBetweenEvictionRunsMillis)(Code)
	Set the time between eviction runs that check idle objects whether they have been idle for too long or have become invalid. Default is -1, not performing any eviction. See Also: GenericObjectPool.setTimeBetweenEvictionRunsMillis

setWhenExhaustedAction
public void setWhenExhaustedAction(byte whenExhaustedAction)(Code)
	Set the action to take when the pool is exhausted. Uses the constant values defined in Commons Pool's GenericObjectPool class. See Also: GenericObjectPool.setWhenExhaustedAction(byte) See Also: GenericObjectPool.WHEN_EXHAUSTED_BLOCK See Also: GenericObjectPool.WHEN_EXHAUSTED_FAIL See Also: GenericObjectPool.WHEN_EXHAUSTED_GROW

setWhenExhaustedActionName
public void setWhenExhaustedActionName(String whenExhaustedActionName)(Code)
	Set the action to take when the pool is exhausted. Uses the constant names defined in Commons Pool's GenericObjectPool class: "WHEN_EXHAUSTED_BLOCK", "WHEN_EXHAUSTED_FAIL", "WHEN_EXHAUSTED_GROW". See Also: CommonsPoolTargetSource.setWhenExhaustedAction(byte)

validateObject
public boolean validateObject(Object obj)(Code)

Methods inherited from org.springframework.aop.target.AbstractPoolingTargetSource

abstract protected void createPool() throws Exception(Code)(Java Doc)
public int getMaxSize()(Code)(Java Doc)
public DefaultIntroductionAdvisor getPoolingConfigMixin()(Code)(Java Doc)
abstract public Object getTarget() throws Exception(Code)(Java Doc)
abstract public void releaseTarget(Object target) throws Exception(Code)(Java Doc)
final public void setBeanFactory(BeanFactory beanFactory) throws BeansException(Code)(Java Doc)
public void setMaxSize(int maxSize)(Code)(Java Doc)

Methods inherited from org.springframework.aop.target.AbstractPrototypeBasedTargetSource

protected void destroyPrototypeInstance(Object target)(Code)(Java Doc)
protected Object newPrototypeInstance() throws BeansException(Code)(Java Doc)
public void setBeanFactory(BeanFactory beanFactory) throws BeansException(Code)(Java Doc)

Fields inherited from org.springframework.aop.target.AbstractBeanFactoryBasedTargetSource

final protected Log logger(Code)(Java Doc)

Methods inherited from org.springframework.aop.target.AbstractBeanFactoryBasedTargetSource

protected void copyFrom(AbstractBeanFactoryBasedTargetSource other)(Code)(Java Doc)
public boolean equals(Object other)(Code)(Java Doc)
public BeanFactory getBeanFactory()(Code)(Java Doc)
public String getTargetBeanName()(Code)(Java Doc)
public synchronized Class getTargetClass()(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
public boolean isStatic()(Code)(Java Doc)
public void releaseTarget(Object target) throws Exception(Code)(Java Doc)
public void setBeanFactory(BeanFactory beanFactory) throws BeansException(Code)(Java Doc)
public void setTargetBeanName(String targetBeanName)(Code)(Java Doc)
public void setTargetClass(Class targetClass)(Code)(Java Doc)
public String toString()(Code)(Java Doc)
protected Object writeReplace() throws ObjectStreamException(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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