edu.mit.sketch.ddg
Class PrimitiveMapping

java.lang.Object
  |
  +--java.util.AbstractMap
        |
        +--java.util.HashMap
              |
              +--edu.mit.sketch.ddg.PrimitiveMapping

All Implemented Interfaces:

Cloneable, Map, Serializable

public class PrimitiveMapping

extends HashMap

Represents a one to one mapping between primitives of two different object descriptions. The keys are the primitives from one object, and the values are primitives from the other object. This class is used to find subobjects in objects.

PrimitiveMapping.java Created: Tue Feb 12 21:14:00 2002

See Also:

Serialized Form

Inner classes inherited from class java.util.Map

Map.Entry

Constructor Summary

PrimitiveMapping()
Construct an empty mapping

PrimitiveMapping(PrimitiveMapping other)
Construct a mapping the same as a given one

Method Summary

void	addPair(Primitive p1, Primitive p2) Add a new pair.
boolean	containsPair(Primitive p1, Primitive p2) Check whether a mached pair (in this order) exists in the mapping.
Primitive	getMapping(Primitive p) Get the primitive that maps to the given primitive.
void	removePair(Primitive p1, Primitive p2) Remove a pair.

Methods inherited from class java.util.HashMap

clear, clone, containsKey, containsValue, entrySet, get, isEmpty, keySet, put, putAll, remove, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

PrimitiveMapping

public PrimitiveMapping()

Construct an empty mapping

PrimitiveMapping

public PrimitiveMapping(PrimitiveMapping other)

Construct a mapping the same as a given one

Method Detail

containsPair

public boolean containsPair(Primitive p1,
                            Primitive p2)

Check whether a mached pair (in this order) exists in the mapping.

addPair

public void addPair(Primitive p1,
                    Primitive p2)

Add a new pair. The pair will only be added if these primitives do not already participate in the mapping.

removePair

public void removePair(Primitive p1,
                       Primitive p2)

Remove a pair.

getMapping

public Primitive getMapping(Primitive p)

Get the primitive that maps to the given primitive. If such mapping does not exist, returns null.