jopt.csp.spi.solver
Class ChoicePointMultiLongArray

java.lang.Object
  jopt.csp.spi.solver.ChoicePointMultiLongArray

All Implemented Interfaces:

ChoicePointNumArraySet.StackList

public class ChoicePointMultiLongArray

extends java.lang.Object

implements ChoicePointNumArraySet.StackList

Contains multiple long arrays that store data for an object that needs to record changes in a ChoicePointStack so the changes can be pushed onto the stack and later rolled back when the stack is popped.

This class is not thread safe.

Version:

$Revision: 1.3 $

Author:

Nick Coleman

Constructor Summary

ChoicePointMultiLongArray(int listCnt)
Creates a new ChoicePointMultiLongArray

Method Summary

int	add(int listIdx, long val) Adds a value to the end of the list
long	get(int listIdx, int offset) Retrieves a value in list
void	pop() Performs actions necessary to pop data
java.lang.Object	popDelta()
void	push() Performs actions necessary to push data
void	pushDelta(java.lang.Object delta)
long	remove(int listIdx, int offset) Retrieves a value from list
void	set(int listIdx, int offset, long val) Stores a value in list
int	size() Returns current size of list

Methods inherited from class java.lang.Object

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

Constructor Detail

ChoicePointMultiLongArray

public ChoicePointMultiLongArray(int listCnt)

Creates a new ChoicePointMultiLongArray

Parameters:

listCnt - Number of lists to maintain

Method Detail

push

public void push()

Performs actions necessary to push data

Specified by:

push in interface ChoicePointNumArraySet.StackList

pushDelta

public void pushDelta(java.lang.Object delta)

Specified by:

pushDelta in interface ChoicePointNumArraySet.StackList

pop

public void pop()

Performs actions necessary to pop data

Specified by:

pop in interface ChoicePointNumArraySet.StackList

popDelta

public java.lang.Object popDelta()

Specified by:

popDelta in interface ChoicePointNumArraySet.StackList

size

public int size()

Returns current size of list

add

public int add(int listIdx,
               long val)

Adds a value to the end of the list

Parameters:

listIdx - Index of list to add value

val - Value to add to list

Returns:

offset of new value in list

set

public void set(int listIdx,
                int offset,
                long val)

Stores a value in list

Parameters:

listIdx - Index of list to add value

offset - Offset of value in list

val - Value to append to the list

get

public long get(int listIdx,
                int offset)

Retrieves a value in list

Parameters:

listIdx - Index of list to add value

offset - Offset of value in list

remove

public long remove(int listIdx,
                   int offset)

Retrieves a value from list

Parameters:

listIdx - Index of list to add value

offset - Offset of value in list