com.ds.fw.types.collections
Class FwListCursorIterator

java.lang.Object
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  +--com.ds.fw.types.collections.FwListIterator
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        +--com.ds.fw.types.collections.FwListCursorIterator

All Implemented Interfaces:

FwCursorIteratorIF, FwListIteratorIF, java.util.Iterator, java.util.ListIterator

public class FwListCursorIterator

extends FwListIterator

implements FwCursorIteratorIF

This class implements the FwCursorIteratorIF interface. Unlike the java iterator interface the next and previous methods do *NOT* throw an exception. If there is no element to return for next() or previous() then the methods return null.

Field Summary

Fields inherited from class com.ds.fw.types.collections.FwListIterator

_index, _lastReturned, _list

Constructor Summary

FwListCursorIterator()
Constructor.

Method Summary

com.ds.fw.types.collections.FwCursorIteratorMarkIF	getMark() Gets a marker for the current list.
java.lang.Object	next() Returns the next element of the list or null, if the array bound is reached.
com.ds.fw.types.collections.FwListIF	next(int n) Returns a sublist with next n elements of the list.
java.lang.Object	previous() Returns the previous element of the list or null, if the array bound is reached.
com.ds.fw.types.collections.FwListIF	previous(int n) Returns a sublist with previous n elements of the list.
void	setMark(com.ds.fw.types.collections.FwCursorIteratorMarkIF e) Sets the list settings to these of the given marker.

Methods inherited from class com.ds.fw.types.collections.FwListIterator

add, getList, gotoEnd, gotoStart, hasNext, hasPrevious, nextIndex, previousIndex, remove, set, setList

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.ds.fw.types.collections.FwCursorIteratorIF

gotoEnd, gotoStart, hasNext, hasPrevious

Methods inherited from interface java.util.Iterator

remove

Constructor Detail

FwListCursorIterator

public FwListCursorIterator()

Constructor.

Method Detail

next

public java.lang.Object next()

Returns the next element of the list or null, if the array bound is reached.

Specified by:

next in interface FwCursorIteratorIF

Overrides:

next in class FwListIterator

Returns:

the element

previous

public java.lang.Object previous()

Returns the previous element of the list or null, if the array bound is reached.

Specified by:

previous in interface FwCursorIteratorIF

Overrides:

previous in class FwListIterator

Returns:

the element

next

public com.ds.fw.types.collections.FwListIF next(int n)

Returns a sublist with next n elements of the list. If n exceeds the array boundary the sublist will be ternminated at the boundary.

Specified by:

next in interface FwCursorIteratorIF

Overrides:

next in class FwListIterator

previous

public com.ds.fw.types.collections.FwListIF previous(int n)

Returns a sublist with previous n elements of the list. If n exceeds the array boundary the sublist will be ternminated at the boundary.

Specified by:

previous in interface FwCursorIteratorIF

Overrides:

previous in class FwListIterator

getMark

public com.ds.fw.types.collections.FwCursorIteratorMarkIF getMark()

Gets a marker for the current list.

Specified by:

getMark in interface FwCursorIteratorIF

Returns:

a marker object interface

setMark

public void setMark(com.ds.fw.types.collections.FwCursorIteratorMarkIF e)

Sets the list settings to these of the given marker.

Specified by:

setMark in interface FwCursorIteratorIF

Parameters:

e - a marker object interface