com.sapportals.portal.prt.util
Class StringBufferPool

java.lang.Object
  |
  +--com.sapportals.portal.prt.util.AbstractPool
        |
        +--com.sapportals.portal.prt.util.StringBufferPool

public class StringBufferPool

extends AbstractPool

StringBufferPool.java Created: Wed Jun 27 10:52:51 2001

Version:

$Revision: #3 $
$File:$ , $Revision:$ Last modified on $Date:$ by $Author:$ using $Change:$ Copyright (c) SAP Portals Europe GmbH 2001

Field Summary

protected static java.lang.String	DEFAULT_POOL_NAME
protected static StringBufferPool	m_corePoolFactory
protected static java.util.HashMap	mm_namedPools
protected java.lang.String	mm_poolName
protected static int	STRINGBUFFER_INITIALCAPACITY
protected static int	STRINGBUFFER_INITIALNBINSTANCES
protected static int	STRINGBUFFER_MAX_POOLSIZE

Fields inherited from class com.sapportals.portal.prt.util.AbstractPool

mm_maxPoolSize, mm_unlocked

Constructor Summary

protected

StringBufferPool(int initialCapacity, int initialNbInstances, int maxSize)

Method Summary

static StringBufferPool	createInstance(java.lang.String poolName, int intialCapacity) Creates a pool and bind to the name specified by the poolName argument.
static StringBufferPool	createInstance(java.lang.String poolName, int intialCapacity, int initialNbInstances) Creates a pool and bind to the name specified by the poolName argument.
static StringBufferPool	createInstance(java.lang.String poolName, int intialCapacity, int initialNbInstances, int maxPoolSize) Creates a pool and bind to the name specified by the poolName argument.
protected StringBufferPool	createInstanceInternal(java.lang.String poolName, int intialCapacity) Creates a pool and bind to the name specified by the poolName argument.
protected StringBufferPool	createInstanceInternal(java.lang.String poolName, int intialCapacity, int initialNbInstances) Creates a pool and bind to the name specified by the poolName argument.
protected StringBufferPool	createInstanceInternal(java.lang.String poolName, int intialCapacity, int initialNbInstances, int maxPoolSize) Creates a pool and bind to the name specified by the poolName argument.
protected java.lang.Object	createPoolObject() Factory method to create pool objects
static void	deleteInstance(java.lang.String poolName)
protected static void	ensureInitialized()
protected void	expirePoolObject(java.lang.Object o) Callback when object are not managed anymore by the pool.
RecyclableStringBuffer	get(int size) Returns the
static StringBufferPool	getInstance() Gets the StringBufferPool instance.
static StringBufferPool	getInstance(java.lang.String poolName) Gets a StringBufferPool specified by the poolName argument.
protected StringBufferPool	getInstanceInternal() Gets the StringBufferPool instance.
protected StringBufferPool	getInstanceInternal(java.lang.String poolName) Gets a StringBufferPool specified by the poolName argument.
void	release(RecyclableStringBuffer rStrBuf)
protected boolean	validatePoolObject(java.lang.Object o) Method called to validate an object that has been put back in the pool

Methods inherited from class com.sapportals.portal.prt.util.AbstractPool

getPoolObject, releasePoolObject

Methods inherited from class java.lang.Object

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

Field Detail

m_corePoolFactory

protected static StringBufferPool m_corePoolFactory

mm_namedPools

protected static java.util.HashMap mm_namedPools

DEFAULT_POOL_NAME

protected static final java.lang.String DEFAULT_POOL_NAME

STRINGBUFFER_INITIALCAPACITY

protected static final int STRINGBUFFER_INITIALCAPACITY

STRINGBUFFER_INITIALNBINSTANCES

protected static final int STRINGBUFFER_INITIALNBINSTANCES

STRINGBUFFER_MAX_POOLSIZE

protected static final int STRINGBUFFER_MAX_POOLSIZE

mm_poolName

protected java.lang.String mm_poolName

Constructor Detail

StringBufferPool

protected StringBufferPool(int initialCapacity,
                           int initialNbInstances,
                           int maxSize)

Method Detail

getInstance

public static StringBufferPool getInstance()

Gets the StringBufferPool instance. Note that this instance can be shared among all portal processes and applications. Returns the StringBufferPool instance.

ensureInitialized

protected static void ensureInitialized()

getInstance

public static StringBufferPool getInstance(java.lang.String poolName)

Gets a StringBufferPool specified by the poolName argument. This will eventually create the corresponding pool using default capacity and max size values. But a client should typically create its own pool using the createInstance method first and use the getInstance afterwards. Returns a StringBufferPool instance

createInstance

public static StringBufferPool createInstance(java.lang.String poolName,
                                              int intialCapacity)

Creates a pool and bind to the name specified by the poolName argument. If the pool already exists the method simply returns the previous instance ignoring the initial capacity argument. Returns a StringBufferPool instance

createInstance

public static StringBufferPool createInstance(java.lang.String poolName,
                                              int intialCapacity,
                                              int initialNbInstances)

Creates a pool and bind to the name specified by the poolName argument. If the pool already exists the method simply returns the previous instance ignoring the all additional arguments. Returns a StringBufferPool instance

createInstance

public static StringBufferPool createInstance(java.lang.String poolName,
                                              int intialCapacity,
                                              int initialNbInstances,
                                              int maxPoolSize)

Creates a pool and bind to the name specified by the poolName argument. If the pool already exists the method simply returns the previous instance ignoring the all additional arguments. Returns a StringBufferPool instance

deleteInstance

public static void deleteInstance(java.lang.String poolName)

validatePoolObject

protected boolean validatePoolObject(java.lang.Object o)

Description copied from class: AbstractPool

Method called to validate an object that has been put back in the pool

Overrides:

validatePoolObject in class AbstractPool

Parameters:

o -

createPoolObject

protected java.lang.Object createPoolObject()
                                     throws java.lang.Exception

Description copied from class: AbstractPool

Factory method to create pool objects

Overrides:

createPoolObject in class AbstractPool

Throws:

java.lang.Exception -

expirePoolObject

protected void expirePoolObject(java.lang.Object o)

Description copied from class: AbstractPool

Callback when object are not managed anymore by the pool.

Overrides:

expirePoolObject in class AbstractPool

Parameters:

o -

get

public RecyclableStringBuffer get(int size)

Returns the

Parameters:

size -

release

public void release(RecyclableStringBuffer rStrBuf)

Parameters:

rStrBuf -

createInstanceInternal

protected StringBufferPool createInstanceInternal(java.lang.String poolName,
                                                  int intialCapacity)

Creates a pool and bind to the name specified by the poolName argument. If the pool already exists the method simply returns the previous instance ignoring the initial capacity argument. Returns a StringBufferPool instance

createInstanceInternal

protected StringBufferPool createInstanceInternal(java.lang.String poolName,
                                                  int intialCapacity,
                                                  int initialNbInstances)

Creates a pool and bind to the name specified by the poolName argument. If the pool already exists the method simply returns the previous instance ignoring the all additional arguments. Returns a StringBufferPool instance

createInstanceInternal

protected StringBufferPool createInstanceInternal(java.lang.String poolName,
                                                  int intialCapacity,
                                                  int initialNbInstances,
                                                  int maxPoolSize)

Creates a pool and bind to the name specified by the poolName argument. If the pool already exists the method simply returns the previous instance ignoring the all additional arguments. Returns a StringBufferPool instance

getInstanceInternal

protected StringBufferPool getInstanceInternal()

Gets the StringBufferPool instance. Note that this instance can be shared among all portal processes and applications. Returns the StringBufferPool instance.

getInstanceInternal

protected StringBufferPool getInstanceInternal(java.lang.String poolName)

Gets a StringBufferPool specified by the poolName argument. This will eventually create the corresponding pool using default capacity and max size values. But a client should typically create its own pool using the createInstance method first and use the getInstance afterwards. Returns a StringBufferPool instance