com.atlassian.jira.util
Class CollectionReorderer

java.lang.Object
  com.atlassian.jira.util.CollectionReorderer

public class CollectionReorderer
extends Object

Constructor Summary

CollectionReorderer()

Method Summary

void	decreasePosition(List objects, Object toMove)
void	increasePosition(List objects, Object toMove)
void	moveToEnd(List objects, Object toMove)
void	moveToPosition(List objects, int initialPosition, int targetPosition) If moving more than one object at the same time please use moveToPosition(java.util.List, java.util.Map) Moves an object at initialPosition index in the objects list to the targetPosition index
void	moveToPosition(List objects, Map positionToObjects) Moves multiple objects in the objects list to given destination indexes
void	moveToPositionAfter(List objects, Object toMove, Object target) Move the 'toMove' to the position after the 'target'.
void	moveToStart(List objects, Object toMove)

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionReorderer

public CollectionReorderer()

Method Detail

moveToStart

public void moveToStart(List objects,
                        Object toMove)

moveToEnd

public void moveToEnd(List objects,
                      Object toMove)

decreasePosition

public void decreasePosition(List objects,
                             Object toMove)

increasePosition

public void increasePosition(List objects,
                             Object toMove)

moveToPositionAfter

public void moveToPositionAfter(List objects,
                                Object toMove,
                                Object target)

Move the 'toMove' to the position after the 'target'. To insert to the head of the list set afterThis to null

Parameters:

objects - list of objects to look up and order in

toMove - the object to move

target - the position to move to

moveToPosition

public void moveToPosition(List objects,
                           Map positionToObjects)

Moves multiple objects in the objects list to given destination indexes

Parameters:

objects - the list of objects

positionToObjects - a naturally sorted map with destination indexes as keys and the objects to move as values

moveToPosition

public void moveToPosition(List objects,
                           int initialPosition,
                           int targetPosition)

If moving more than one object at the same time please use moveToPosition(java.util.List, java.util.Map)

Moves an object at initialPosition index in the objects list to the targetPosition index

Parameters:

objects - the list of objects to modify

initialPosition - the current index of the object that should be moved in the objects list

targetPosition - the destination index