ptolemy.domains.sdf.optimize

Class OptimalScheduleFinder._TwoWayHashMap

java.lang.Object

ptolemy.domains.sdf.optimize.OptimalScheduleFinder._TwoWayHashMap

Enclosing class:

OptimalScheduleFinder

protected static class OptimalScheduleFinder._TwoWayHashMap
extends java.lang.Object

A two-way hash map provides fast lookup in both directions of a bijective function between objects. Supports only adding. (Didn't know whether Java provides a standard solution.)

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.util.HashMap	_backwardMap one-way hash map to make the backward association
(package private) java.util.HashMap	_forwardMap one-way hash map to make the forward association

Constructor Summary

Constructors

Constructor and Description
_TwoWayHashMap() Construct an instance of two-way hash map.

Method Summary

Modifier and Type	Method and Description
(package private) java.lang.Object	getBW(java.lang.Object B) Backward lookup.
(package private) java.lang.Object	getFW(java.lang.Object A) Forward lookup.
(package private) void	put(java.lang.Object A, java.lang.Object B) Put an association between objects A and B in the hash map.

Methods inherited from class java.lang.Object

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

Field Detail

_forwardMap

java.util.HashMap _forwardMap

one-way hash map to make the forward association

_backwardMap

java.util.HashMap _backwardMap

one-way hash map to make the backward association

Constructor Detail

_TwoWayHashMap

_TwoWayHashMap()

Construct an instance of two-way hash map.

Method Detail

put

void put(java.lang.Object A,
         java.lang.Object B)

Put an association between objects A and B in the hash map.

Parameters:

A - object A

B - object B

getFW

java.lang.Object getFW(java.lang.Object A)

Forward lookup.

Parameters:

A - lookup object associated with object A

Returns:

associated object

getBW

java.lang.Object getBW(java.lang.Object B)

Backward lookup.

Parameters:

B - lookup object associated with object B

Returns:

associated object