Package org.eclipse.persistence.internal.identitymaps

Class IdentityMapEnumeration

java.lang.Object

org.eclipse.persistence.internal.identitymaps.AbstractIdentityMapEnumeration<Object>

org.eclipse.persistence.internal.identitymaps.IdentityMapEnumeration

All Implemented Interfaces:

Enumeration<Object>

public class IdentityMapEnumeration
extends AbstractIdentityMapEnumeration<Object>

Allows to iterate over Object instances stored in CacheKey instances in the IdentityMap.

Field Summary

Fields inherited from class org.eclipse.persistence.internal.identitymaps.AbstractIdentityMapEnumeration

cacheKeysIterator, nextKey, shouldCheckReadLocks

Constructor Summary

Constructors

Constructor	Description
IdentityMapEnumeration(Collection<CacheKey> keys)	Creates an instance of CacheKey instances enumeration.

Method Summary

Modifier and Type	Method	Description
Object	nextElement()	Get next CacheKey.getObject() element of CacheKey enumeration if this enumeration object has at least one more element to provide.

Methods inherited from class org.eclipse.persistence.internal.identitymaps.AbstractIdentityMapEnumeration

getNextElement, hasMoreElements

Methods inherited from class java.lang.Object

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

Constructor Detail

IdentityMapEnumeration

public IdentityMapEnumeration(Collection<CacheKey> keys)

Creates an instance of CacheKey instances enumeration. Checking of read lock on the CacheKey instances is turned on.

Parameters:

keys - Collection of CacheKey instances to be iterated

Method Detail

nextElement

public Object nextElement()

Get next CacheKey.getObject() element of CacheKey enumeration if this enumeration object has at least one more element to provide.

Specified by:

nextElement in interface Enumeration<Object>

Specified by:

nextElement in class AbstractIdentityMapEnumeration<Object>

Returns:

the next CacheKey.getObject() element of this enumeration

Throws:

NoSuchElementException - if no more elements exist