com.sun.enterprise.resource.pool

Class UnpooledResource

java.lang.Object

com.sun.enterprise.resource.pool.ConnectionPool

com.sun.enterprise.resource.pool.UnpooledResource

All Implemented Interfaces:

ConnectionLeakListener, PoolProperties, ResourceHandler, ResourcePool

public class UnpooledResource
extends ConnectionPool

This resource pool is created when connection pooling is switched off Hence no pooling happens in this resource pool

Since:

9.1

Author:

Kshitiz Saxena

Field Summary

Fields inherited from class com.sun.enterprise.resource.pool.ConnectionPool

_logger, allocator, conCreationRetryInterval_, connectionCreationRetry_, connectionCreationRetryAttempts_, dataStructureParameters, dataStructureType, ds, failAllConnections, gateway, idletime, leakDetector, localStrings, matchConnections, maxConnectionUsage_, maxPoolSize, maxWaitTime, poolInfo, poolInitialized, poolLifeCycleListener, poolWaitQueueClass, preferValidateOverRecreate, reconfigWaitQueue, resizeQuantity, resizerTask, resourceGatewayClass, resourceSelectionStrategyClass, steadyPoolSize, timer, validateAtmostPeriodInMilliSeconds_, validation, waitQueue

Constructor Summary

Constructors

Constructor and Description
UnpooledResource(PoolInfo poolInfo, Hashtable env) Creates a new instance of UnpooledResourcePool

Method Summary

Modifier and Type	Method and Description
protected void	freeResource(ResourceHandle resourceHandle)
protected ResourceHandle	getUnenlistedResource(ResourceSpec spec, ResourceAllocator alloc, Transaction tran) To provide an unenlisted, valid, matched resource from pool.
protected void	initPool(ResourceAllocator allocator)
protected ResourceHandle	prefetch(ResourceSpec spec, ResourceAllocator alloc, Transaction tran) Overridden in AssocWithThreadResourcePool to fetch the resource cached in the ThreadLocal In ConnectionPool this simply returns null.
protected void	reconfigureSteadyPoolSize(int oldSteadyPoolSize, int newSteadyPoolSize)
void	resourceErrorOccurred(ResourceHandle resourceHandle)

Methods inherited from class com.sun.enterprise.resource.pool.ConnectionPool

addResource, blockRequests, cancelResizerTask, cleanupResource, createResource, createResourceAndAddToPool, createSingleResource, createSingleResourceAndAdjustPool, deleteResource, dumpPoolStatus, emptyFreeConnectionsInPool, emptyPool, flushConnectionPool, freeUnenlistedResource, getIdleTimeout, getInvalidConnections, getMaxPoolSize, getPoolConfigurationFromJndi, getPoolInfo, getPoolStatus, getPoolWaitQueue, getReconfigWaitQueue, getReconfigWaitTime, getResizeQuantity, getResource, getResourceFromPool, getSteadyPoolSize, getWaitQueueLength, initializePoolDataStructure, initializePoolWaitQueue, initializeResizer, initializeResourceSelectionStrategy, internalGetResource, invalidConnectionDetected, isConnectionValid, isResourceUnused, isSelfManaged, matchConnection, notifyWaitingThreads, performMaxConnectionUsageOperation, potentialConnectionLeakFound, printConnectionLeakTrace, reclaimConnection, reconfigurePool, removePoolLifeCycleListener, resizePool, resourceClosed, resourceEnlisted, setMaxPoolSize, setPoolLifeCycleListener, setResourceStateToBusy, setResourceStateToFree, setSelfManaged, setSteadyPoolSize, switchOnMatching, toString, transactionCompleted

Methods inherited from class java.lang.Object

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

Constructor Detail

UnpooledResource

public UnpooledResource(PoolInfo poolInfo,
                        Hashtable env)
                 throws PoolingException

Creates a new instance of UnpooledResourcePool

Throws:

PoolingException

Method Detail

initPool

protected void initPool(ResourceAllocator allocator)
                 throws PoolingException

Overrides:

initPool in class ConnectionPool

Throws:

PoolingException

prefetch

protected ResourceHandle prefetch(ResourceSpec spec,
                                  ResourceAllocator alloc,
                                  Transaction tran)

Description copied from class: ConnectionPool

Overridden in AssocWithThreadResourcePool to fetch the resource cached in the ThreadLocal In ConnectionPool this simply returns null.

Overrides:

prefetch in class ConnectionPool

Parameters:

spec - ResourceSpec

alloc - ResourceAllocator to create a resource

tran - Transaction

Returns:

ResourceHandle resource from ThreadLocal

reconfigureSteadyPoolSize

protected void reconfigureSteadyPoolSize(int oldSteadyPoolSize,
                                         int newSteadyPoolSize)
                                  throws PoolingException

Overrides:

reconfigureSteadyPoolSize in class ConnectionPool

Throws:

PoolingException

getUnenlistedResource

protected ResourceHandle getUnenlistedResource(ResourceSpec spec,
                                               ResourceAllocator alloc,
                                               Transaction tran)
                                        throws PoolingException

Description copied from class: ConnectionPool

To provide an unenlisted, valid, matched resource from pool.

Overrides:

getUnenlistedResource in class ConnectionPool

Parameters:

spec - ResourceSpec

alloc - ResourceAllocator

tran - Transaction

Returns:

ResourceHandle resource from pool

Throws:

PoolingException - Exception while getting resource from pool

resourceErrorOccurred

public void resourceErrorOccurred(ResourceHandle resourceHandle)
                           throws IllegalStateException

Specified by:

resourceErrorOccurred in interface ResourcePool

Overrides:

resourceErrorOccurred in class ConnectionPool

Throws:

IllegalStateException

freeResource

protected void freeResource(ResourceHandle resourceHandle)

Overrides:

freeResource in class ConnectionPool