org.apache.xpath.axes
Class IteratorPool

java.lang.Object
  org.apache.xpath.axes.IteratorPool

All Implemented Interfaces:

java.io.Serializable

public final class IteratorPool
extends java.lang.Object
implements java.io.Serializable

Pool of object of a given type to pick from to help memory usage

See Also:

Serialized Form

Field Summary

private java.util.ArrayList	m_freeStack Stack of given objects this points to.
private DTMIterator	m_orig Type of objects in this pool.
(package private) static long	serialVersionUID

Constructor Summary

IteratorPool(DTMIterator original)
Constructor IteratorPool

Method Summary

void	freeInstance(DTMIterator obj) Add an instance of the given object to the pool
DTMIterator	getInstance() Get an instance of the given object in this pool
DTMIterator	getInstanceOrThrow() Get an instance of the given object in this pool

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

static final long serialVersionUID

See Also:

Constant Field Values

m_orig

private final DTMIterator m_orig

Type of objects in this pool.

m_freeStack

private final java.util.ArrayList m_freeStack

Stack of given objects this points to.

Constructor Detail

IteratorPool

public IteratorPool(DTMIterator original)

Constructor IteratorPool

Parameters:

original - The original iterator from which all others will be cloned.

Method Detail

getInstanceOrThrow

public DTMIterator getInstanceOrThrow()
                               throws java.lang.CloneNotSupportedException

Get an instance of the given object in this pool

Returns:

An instance of the given object

Throws:

java.lang.CloneNotSupportedException

getInstance

public DTMIterator getInstance()

Get an instance of the given object in this pool

Returns:

An instance of the given object

freeInstance

public void freeInstance(DTMIterator obj)

Add an instance of the given object to the pool

Parameters:

obj - Object to add.