|
EclipseLink 2.4.2, build 'v20130514-5956486' API Reference | ||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||
java.lang.Objectorg.eclipse.persistence.jpa.jpql.util.iterator.CloneIterator<E>
public class CloneIterator<E>
A CloneIterator iterates over a copy of a collection, allowing for concurrent access
to the original collection.
The original collection passed to the CloneIterator's constructor should be
synchronized; otherwise you run the risk of a corrupted collection.
By default, a CloneIterator does not support the remove() operation; this
is because it does not have access to the original collection. But if the CloneIterator
is supplied with an Mutator it will delegate the remove() operation to the
Mutator. Alternatively, a subclass can override the remove(Object) method.
| Constructor Summary | |
|---|---|
CloneIterator(java.util.Collection<? extends E> collection)
Creates a new CloneIterator using a copy of the specified collection. |
|
CloneIterator(java.util.Collection<? extends E> collection,
Mutator<? extends E> mutator)
Creates a new CloneIterator using a copy of the specified collection. |
|
| Method Summary | |
|---|---|
boolean |
hasNext()
|
java.util.Iterator<E> |
iterator()
|
E |
next()
|
void |
remove()
|
protected void |
remove(E item)
Removes the specified element from the original collection. |
java.lang.String |
toString()
|
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public CloneIterator(java.util.Collection<? extends E> collection)
CloneIterator using a copy of the specified collection. The remove() method will not be supported, unless a subclass overrides remove(Object).
collection - The collection that is copied in order to iterate over its items without
being changed concurrently
public CloneIterator(java.util.Collection<? extends E> collection,
Mutator<? extends E> mutator)
CloneIterator using a copy of the specified collection. Use the
specified mutator to remove objects from the original collection.
collection - The collection that is copied in order to iterate over its items without
being changed concurrentlymutator - This Mutator is used to remove the item from the original collection| Method Detail |
|---|
public boolean hasNext()
hasNext in interface java.util.Iterator<E>public java.util.Iterator<E> iterator()
iterator in interface java.lang.Iterable<E>public E next()
next in interface java.util.Iterator<E>public void remove()
remove in interface java.util.Iterator<E>protected void remove(E item)
This method can be overridden by a subclass as an alternative to building a Mutator.
item - The element to remove from the original collectionpublic java.lang.String toString()
toString in class java.lang.Object
|
EclipseLink 2.4.2, build 'v20130514-5956486' API Reference | ||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||