com.bea.wlxt
Class WLXTPool

java.lang.Object
  |
  +--com.bea.wlxt.WLXTPool

public class WLXTPool

extends java.lang.Object

implements com.bea.wlxt.XTPool

This singleton class implements a pool of WLXT objects to allow caching of MFL documents and reduce overhead of obtaining a configured WLXT engine.

Since:

WLXT 2.0

Author:

Copyright © 2000, 2001 BEA Systems, Inc. All Rights Reserved.

See Also:

WLXT

Constructor Summary

WLXTPool()

Method Summary

static void	flush() Flush the WLXT object pool and begin satisfying requests with newly generated objects.
void	flushXT()
static WLXT	get() Get a WLXT instance from the pool.
static boolean	getEventHandlerDebug() Get the WLXT Plugin EventHandler debugging status
static int	getMaxPool() Returns the maximum pool size value.
static int	getPoolHighWater() Return the pool high water value indicating the maximum number of WLXT objects that existed at a single point in time.
static int	getPoolSize() Return the current size of the WLXT pool.
static int	getTotalMflCacheHits() Returns the total number of MFL document loads that were satisfied by a MFL cache.
static int	getTotalMflRequests() Returns the total number of requests to load a MFL document since the creation of the WLXT pool.
com.bea.wlxt.XT	getXT()
static void	put(WLXT wlxt) Return a WLXT object to the object pool.
void	putXT(com.bea.wlxt.XT wlxt)
static void	setEventHandlerDebug(boolean debug) Enable or disable WLXT Plugin EventHandler debugging messages
static void	setMaxPool(int max) Sets the maximum size of the WLXT pool.
void	setMaxPoolXT(int maxPool)

Methods inherited from class java.lang.Object

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

Constructor Detail

WLXTPool

public WLXTPool()

Method Detail

getXT

public com.bea.wlxt.XT getXT()

Specified by:

getXT in interface com.bea.wlxt.XTPool

putXT

public void putXT(com.bea.wlxt.XT wlxt)

Specified by:

putXT in interface com.bea.wlxt.XTPool

flushXT

public void flushXT()

Specified by:

flushXT in interface com.bea.wlxt.XTPool

setMaxPoolXT

public void setMaxPoolXT(int maxPool)

Specified by:

setMaxPoolXT in interface com.bea.wlxt.XTPool

get

public static WLXT get()

Get a WLXT instance from the pool. If the pool is empty at the time of the request a new WLXT object will be generated to satisfy the request.

Returns:

A WLXT object instance which may be used to parse and/or generate binary data based on an MFL definition. When finished with this object it should be returned to the pool via the put() method.

put

public static void put(WLXT wlxt)

Return a WLXT object to the object pool. If the pool is already at it's maximum the object will be discarded.

Parameters:

wlxt - The object to be placed in the pool.

flush

public static void flush()

Flush the WLXT object pool and begin satisfying requests with newly generated objects. This has the effect of flushing all the MFL caches.

getPoolSize

public static int getPoolSize()

Return the current size of the WLXT pool.

Returns:

The current pool size.

getPoolHighWater

public static int getPoolHighWater()

Return the pool high water value indicating the maximum number of WLXT objects that existed at a single point in time. This value can be used to tune the maximum pool size value.

Returns:

The maximum number of WLXT objects that have existed since the creation of the pool.

getMaxPool

public static int getMaxPool()

Returns the maximum pool size value. The pool will not grow beyond this size although additional WLXT objects may be generated to fill requests over and above this value. If this value is less than the current size of the pool the pool size will be reduced via attrition.

Returns:

The current maximum size of the pool.

setMaxPool

public static void setMaxPool(int max)

Sets the maximum size of the WLXT pool.

Parameters:

max - The maximum number of WLXT objects that will be maintained in the pool.

setEventHandlerDebug

public static void setEventHandlerDebug(boolean debug)

Enable or disable WLXT Plugin EventHandler debugging messages

Parameters:

debug - Set debugging as enables or disabled.

getEventHandlerDebug

public static boolean getEventHandlerDebug()

Get the WLXT Plugin EventHandler debugging status

Returns:

true is debugging is enabled.

getTotalMflRequests

public static int getTotalMflRequests()

Returns the total number of requests to load a MFL document since the creation of the WLXT pool.

Returns:

Total number of MFL load requests.

getTotalMflCacheHits

public static int getTotalMflCacheHits()

Returns the total number of MFL document loads that were satisfied by a MFL cache.

Returns:

Total number of MFL loads which came from a cache.