org.eclipse.gemini.blueprint.service.importer.support.internal.collection

Class DynamicList.DynamicListIterator

java.lang.Object

org.eclipse.gemini.blueprint.service.importer.support.internal.collection.DynamicCollection.DynamicIterator

org.eclipse.gemini.blueprint.service.importer.support.internal.collection.DynamicList.DynamicListIterator

All Implemented Interfaces:

java.util.Iterator<E>, java.util.ListIterator<E>

Enclosing class:

DynamicList<E>

private class DynamicList.DynamicListIterator
extends DynamicCollection.DynamicIterator
implements java.util.ListIterator<E>

List iterator.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.Boolean	hasPrevious Iterator variable - not thread-safe/synchronized since only one thread should use the iterator.
protected E	headGhost Similar to DynamicIterator#tailGhost in functionality but representing the last seen object in the head of the collection.
private boolean	previousOperationCalled Boolean field used by the set(Object) and DynamicCollection.DynamicIterator.remove() operation.

Fields inherited from class org.eclipse.gemini.blueprint.service.importer.support.internal.collection.DynamicCollection.DynamicIterator

cursor, hasNext, lock, removalAllowed, tailGhost

Constructor Summary

Constructors

Modifier	Constructor and Description
private	DynamicListIterator(int index)

Method Summary

Modifier and Type	Method and Description
void	add(E o)
boolean	hasPrevious()
E	next()
int	nextIndex()
E	previous()
int	previousIndex()
protected int	removalIndex(int cursor)
void	set(E o)
private boolean	unsafeHasPrevious() Updates the hasPrevious field.

Methods inherited from class org.eclipse.gemini.blueprint.service.importer.support.internal.collection.DynamicCollection.DynamicIterator

hasNext, remove, removeObject, unsafeHasNext

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.ListIterator

hasNext, remove

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

headGhost

protected volatile E headGhost

Similar to DynamicIterator#tailGhost in functionality but representing the last seen object in the head of the collection.

hasPrevious

protected java.lang.Boolean hasPrevious

Iterator variable - not thread-safe/synchronized since only one thread should use the iterator.

previousOperationCalled

private boolean previousOperationCalled

Boolean field used by the set(Object) and DynamicCollection.DynamicIterator.remove() operation. True indicates next() was called, and false previous().

Constructor Detail

DynamicListIterator

private DynamicListIterator(int index)

Method Detail

add

public void add(E o)

Specified by:

add in interface java.util.ListIterator<E>

unsafeHasPrevious

private boolean unsafeHasPrevious()

Updates the hasPrevious field. Internal unprotected method to avoid nested synchronization blocks. To execute this code, one needs the storage, iteratorsLock and iterator lock.

Returns:

hasPrevious

public boolean hasPrevious()

Specified by:

hasPrevious in interface java.util.ListIterator<E>

nextIndex

public int nextIndex()

Specified by:

nextIndex in interface java.util.ListIterator<E>

next

public E next()

Specified by:

next in interface java.util.Iterator<E>

Specified by:

next in interface java.util.ListIterator<E>

Overrides:

next in class DynamicCollection.DynamicIterator

previous

public E previous()

Specified by:

previous in interface java.util.ListIterator<E>

previousIndex

public int previousIndex()

Specified by:

previousIndex in interface java.util.ListIterator<E>

set

public void set(E o)

Specified by:

set in interface java.util.ListIterator<E>

removalIndex

protected int removalIndex(int cursor)

Overrides:

removalIndex in class DynamicCollection.DynamicIterator