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com.tangosol.util
Class WrapperCollections.AbstractWrapperListIterator

java.lang.Object
com.tangosol.util.WrapperCollections.AbstractWrapperIterator
com.tangosol.util.WrapperCollections.AbstractWrapperListIterator

All Implemented Interfaces:

Iterator, ListIterator

Enclosing class:

WrapperCollections

public abstract class WrapperCollections.AbstractWrapperListIterator

extends WrapperCollections.AbstractWrapperIterator

implements ListIterator

ListIterator implementation which delegates all calls to another ListIterator.

Field Summary

Fields inherited from class com.tangosol.util.WrapperCollections.AbstractWrapperIterator

m_iterDelegate

Constructor Summary

protected

WrapperCollections.AbstractWrapperListIterator(ListIterator iter) Create an AbstractWrapperListIterator which delegates to the specified ListIterator.

Method Summary

void	add(Object o) Inserts the specified element into the list (optional operation).
protected ListIterator	getDelegate() Return the Iterator to which all operations should be delegated to.
boolean	hasPrevious() Returns true if this list iterator has more elements when traversing the list in the reverse direction.
int	nextIndex() Returns the index of the element that would be returned by a subsequent call to next.
Object	previous() Returns the previous element in the list.
int	previousIndex() Returns the index of the element that would be returned by a subsequent call to previous.
void	set(Object o) Replaces the last element returned by next or previous with the specified element (optional operation).

Methods inherited from class com.tangosol.util.WrapperCollections.AbstractWrapperIterator

equals, hashCode, hasNext, next, remove

Methods inherited from interface java.util.ListIterator

hasNext, next, remove

Constructor Detail

WrapperCollections.AbstractWrapperListIterator

protected WrapperCollections.AbstractWrapperListIterator(ListIterator iter)

Create an AbstractWrapperListIterator which delegates to the specified ListIterator.

Parameters:

iter - the ListIterator to delegate all calls to

Method Detail

getDelegate

protected ListIterator getDelegate()

Return the Iterator to which all operations should be delegated to.

Overrides:

getDelegate in class WrapperCollections.AbstractWrapperIterator

Returns:

the wrapped Iterator

add

public void add(Object o)

Inserts the specified element into the list (optional operation). The element is inserted immediately before the next element that would be returned by next, if any, and after the next element that would be returned by previous, if any. (If the list contains no elements, the new element becomes the sole element on the list.) The new element is inserted before the implicit cursor: a subsequent call to next would be unaffected, and a subsequent call to previous would return the new element. (This call increases by one the value that would be returned by a call to nextIndex or previousIndex.)

Specified by:

add in interface ListIterator

Parameters:

o - the element to insert.

hasPrevious

public boolean hasPrevious()

Returns true if this list iterator has more elements when traversing the list in the reverse direction. (In other words, returns true if previous would return an element rather than throwing an exception.)

Specified by:

hasPrevious in interface ListIterator

Returns:

true if the list iterator has more elements when traversing the list in the reverse direction.

nextIndex

public int nextIndex()

Returns the index of the element that would be returned by a subsequent call to next. (Returns list size if the list iterator is at the end of the list.)

Specified by:

nextIndex in interface ListIterator

Returns:

the index of the element that would be returned by a subsequent call to next, or list size if list iterator is at end of list.

previous

public Object previous()

Returns the previous element in the list. This method may be called repeatedly to iterate through the list backwards, or intermixed with calls to next to go back and forth. (Note that alternating calls to next and previous will return the same element repeatedly.)

Specified by:

previous in interface ListIterator

Returns:

the previous element in the list.

previousIndex

public int previousIndex()

Returns the index of the element that would be returned by a subsequent call to previous. (Returns -1 if the list iterator is at the beginning of the list.)

Specified by:

previousIndex in interface ListIterator

Returns:

the index of the element that would be returned by a subsequent call to previous, or -1 if list iterator is at beginning of list.

set

public void set(Object o)

Replaces the last element returned by next or previous with the specified element (optional operation). This call can be made only if neither ListIterator.remove nor ListIterator.add have been called after the last call to next or previous.

Specified by:

set in interface ListIterator

Parameters:

o - the element with which to replace the last element returned by next or previous.

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