com.sun.enterprise.resource.pool.resizer

Class AssocWithThreadPoolResizer

java.lang.Object

java.util.TimerTask

com.sun.enterprise.resource.pool.resizer.Resizer

com.sun.enterprise.resource.pool.resizer.AssocWithThreadPoolResizer

All Implemented Interfaces:

Runnable

public class AssocWithThreadPoolResizer
extends Resizer

Resizer for Associate With Thread type pools to remove unusable connections and maintain steady pool size.

Author:

Shalini M

Field Summary

Fields inherited from class com.sun.enterprise.resource.pool.resizer.Resizer

_logger, dataStructure, handler, pool, poolInfo, preferValidateOverRecreate

Constructor Summary

Constructors

Constructor and Description
AssocWithThreadPoolResizer(PoolInfo poolInfo, DataStructure ds, PoolProperties pp, ResourceHandler handler, boolean preferValidateOverRecreate)

Method Summary

Modifier and Type	Method and Description
protected int	removeIdleAndInvalidResources() Get the free connections list from the pool, remove idle-timed-out resources and then invalid resources.
protected void	scaleDownPool(int scaleDownQuantity, boolean forced) Scale down pool by a size <= pool-resize-quantity

Methods inherited from class com.sun.enterprise.resource.pool.resizer.Resizer

debug, isResourceEligibleForRemoval, resizePool, run, validateAndRemoveResource

Methods inherited from class java.util.TimerTask

cancel, scheduledExecutionTime

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AssocWithThreadPoolResizer

public AssocWithThreadPoolResizer(PoolInfo poolInfo,
                                  DataStructure ds,
                                  PoolProperties pp,
                                  ResourceHandler handler,
                                  boolean preferValidateOverRecreate)

Method Detail

scaleDownPool

protected void scaleDownPool(int scaleDownQuantity,
                             boolean forced)

Scale down pool by a size <= pool-resize-quantity

Overrides:

scaleDownPool in class Resizer

Parameters:

forced - scale-down only when forced

scaleDownQuantity - no. of resources to remove

removeIdleAndInvalidResources

protected int removeIdleAndInvalidResources()

Get the free connections list from the pool, remove idle-timed-out resources and then invalid resources.

Overrides:

removeIdleAndInvalidResources in class Resizer

Returns:

int number of resources removed