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java.lang.Objectorg.eclipse.persistence.jpa.jpql.utility.iterator.CloneListIterator<E>
E - the type of elements returned by the iteratorpublic class CloneListIterator<E>
A CloneListIterator iterates over a copy of a list,
allowing for concurrent access to the original list.
The original list passed to the CloneListIterator's
constructor should be synchronized; otherwise you run the risk of
a corrupted list (e.g. Vector.
By default, a CloneListIterator does not support the
modification operations; this is because it does not have
access to the original list. But if the CloneListIterator
is supplied with a CloneListIterator.Mutator it will delegate the
modification operations to the CloneListIterator.Mutator.
Alternatively, a subclass can override the modification methods.
org.eclipse.jpt.common.utility.internal.iterables.LiveCloneListIterable,
org.eclipse.jpt.common.utility.internal.iterables.SnapshotCloneListIterable| Nested Class Summary | |
|---|---|
static interface |
CloneListIterator.Mutator<T>
Used by CloneListIterator to remove
elements from the original list; since the list iterator
does not have direct access to the original list. |
| Constructor Summary | |
|---|---|
protected |
CloneListIterator(CloneListIterator.Mutator<E> mutator,
java.lang.Object... array)
Internal constructor used by subclasses. |
|
CloneListIterator(E[] array)
Construct a list iterator on a copy of the specified array. |
|
CloneListIterator(E[] array,
CloneListIterator.Mutator<E> mutator)
Construct a list iterator on a copy of the specified array. |
|
CloneListIterator(java.util.List<? extends E> list)
Construct a list iterator on a copy of the specified list. |
|
CloneListIterator(java.util.List<? extends E> list,
CloneListIterator.Mutator<E> mutator)
Construct a list iterator on a copy of the specified list. |
| Method Summary | |
|---|---|
void |
add(E o)
|
protected void |
add(int index,
E o)
Add the specified element to the original list. |
boolean |
hasNext()
|
boolean |
hasPrevious()
|
protected E |
nestedNext()
The list passed in during construction held elements of type E,
so this cast is not a problem. |
protected E |
nestedPrevious()
The list passed in during construction held elements of type E,
so this cast is not a problem. |
E |
next()
|
int |
nextIndex()
|
E |
previous()
|
int |
previousIndex()
|
void |
remove()
|
protected void |
remove(int index)
Remove the specified element from the original list. |
void |
set(E o)
|
protected void |
set(int index,
E o)
Set the specified element in the original list. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public CloneListIterator(E[] array)
public CloneListIterator(E[] array,
CloneListIterator.Mutator<E> mutator)
public CloneListIterator(java.util.List<? extends E> list)
public CloneListIterator(java.util.List<? extends E> list,
CloneListIterator.Mutator<E> mutator)
protected CloneListIterator(CloneListIterator.Mutator<E> mutator,
java.lang.Object... array)
| Method Detail |
|---|
public void add(E o)
add in interface java.util.ListIterator<E>
protected void add(int index,
E o)
This method can be overridden by a subclass as an
alternative to building a CloneListIterator.Mutator.
public boolean hasNext()
hasNext in interface java.util.Iterator<E>hasNext in interface java.util.ListIterator<E>public boolean hasPrevious()
hasPrevious in interface java.util.ListIterator<E>protected E nestedNext()
E,
so this cast is not a problem. We need this cast because
all the elements of the original collection were copied into
an object array (Object[]).
protected E nestedPrevious()
E,
so this cast is not a problem. We need this cast because
all the elements of the original collection were copied into
an object array (Object[]).
public E next()
next in interface java.util.Iterator<E>next in interface java.util.ListIterator<E>public int nextIndex()
nextIndex in interface java.util.ListIterator<E>public E previous()
previous in interface java.util.ListIterator<E>public int previousIndex()
previousIndex in interface java.util.ListIterator<E>public void remove()
remove in interface java.util.Iterator<E>remove in interface java.util.ListIterator<E>protected void remove(int index)
This method can be overridden by a subclass as an
alternative to building a CloneListIterator.Mutator.
public void set(E o)
set in interface java.util.ListIterator<E>
protected void set(int index,
E o)
This method can be overridden by a subclass as an
alternative to building a CloneListIterator.Mutator.
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