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java.lang.Objectorg.eclipse.persistence.jpa.jpql.util.iterator.CloneListIterator<E>
public 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.
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 Mutator it will delegate the modification operations to the Mutator. Alternatively, a subclass can override the modification methods.
| Constructor Summary | |
|---|---|
CloneListIterator(java.util.List<? extends E> list)
Creates a new CloneListIterator using a copy of the specified list. |
|
CloneListIterator(java.util.List<? extends E> list,
ListMutator<E> mutator)
Construct a list iterator on a copy of the specified list. |
|
| Method Summary | |
|---|---|
void |
add(E item)
|
protected void |
add(int index,
E item)
Adds the specified element to the original list. |
boolean |
hasNext()
|
boolean |
hasPrevious()
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java.util.ListIterator<E> |
iterator()
|
E |
next()
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int |
nextIndex()
|
E |
previous()
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int |
previousIndex()
|
void |
remove()
|
protected void |
remove(int index)
Removes the specified element from the original list. |
void |
set(E item)
|
protected void |
set(int index,
E item)
Sets the specified element in the original list. |
java.lang.String |
toString()
|
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public CloneListIterator(java.util.List<? extends E> list)
CloneListIterator using a copy of the specified list. The
modification methods will not be supported, unless a subclass overrides them.
list - The list that is copied in order to iterate over its items without being changed concurrently
public CloneListIterator(java.util.List<? extends E> list,
ListMutator<E> mutator)
ListMutator
to modify the original list.
list - The list that is copied in order to iterate over its items without being changed concurrentlymutator - This ListMutator is used to remove the item from the original list| Method Detail |
|---|
public void add(E item)
add in interface java.util.ListIterator<E>
protected void add(int index,
E item)
This method can be overridden by a subclass as an alternative to building a Mutator.
index - The index of insertionitem - The element to insert into the listpublic 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>public java.util.ListIterator<E> iterator()
iterator in interface java.lang.Iterable<E>iterator in interface IterableListIterator<E>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 ListMutator.
index - The position of the item to remove from the original listpublic void set(E item)
set in interface java.util.ListIterator<E>
protected void set(int index,
E item)
This method can be overridden by a subclass as an alternative to building a ListMutator.
index - The index of replacementitem - The element to replace the existing onepublic java.lang.String toString()
toString in class java.lang.Object
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