org.infai.emo.matcher.util
Class Mapping

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractSet<E>
          java.util.HashSet<Tuple>
              org.infai.emo.matcher.util.Mapping

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<Tuple>, java.util.Collection<Tuple>, java.util.Set<Tuple>

public class Mapping
extends java.util.HashSet<Tuple>

This class contains a mapping between two models.
The mapping contains tuples, each containing one element of the first model an one element of the second model.
In this context the mapping is a complete cross product that maps each element of the first model to each element of the second model. Note: Donīt swap this mapping with the second phase of the difference detection-algorithm.

Version:

1.0.0

Author:

Stanley Hillner

See Also:

Tuple, Serialized Form

Field Summary

private boolean	crossProduct This flag indicates if the models where mapped using a full cross product.
private Model	leftModel The left model of the mapping.
private Model	rightModel The right model or the mapping.

Constructor Summary

Mapping()
An empty mapping without models.

Mapping(Model model1, Model model2, boolean crossProduct)
Method that builds the mapping between the two models by creating tuples for every possible pair of elements of the models.

Method Summary

Mapping	getInvertedMapping() Inverts the tuples of the Mapping, thus the element-order of the tuples will be switched.
Model	getLeftModel()
Model	getRightModel()
boolean	isCrossProduct() Whether a full cross-product was used for the mapping.
java.lang.String	toString()

Methods inherited from class java.util.HashSet

add, clear, clone, contains, isEmpty, iterator, remove, size

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Set

addAll, containsAll, equals, hashCode, removeAll, retainAll, toArray, toArray

Field Detail

leftModel

private Model leftModel

The left model of the mapping.

See Also:

Model

rightModel

private Model rightModel

The right model or the mapping.

See Also:

Model

crossProduct

private boolean crossProduct

This flag indicates if the models where mapped using a full cross product.

Constructor Detail

Mapping

public Mapping(Model model1,
               Model model2,
               boolean crossProduct)

Method that builds the mapping between the two models by creating tuples for every possible pair of elements of the models.

Parameters:

leftModel - the model that provides the first elements of the tuples.

rightModel - the model that provides the second elements of the tuples.

crossProduct - indicates if the mapping shall be built using a cross product or not.
If this flag is set to false the mapping will only contain tuples of elements of the same meta-type.

See Also:

leftModel, rightModel, crossProduct

Mapping

Mapping()

An empty mapping without models.

Method Detail

getInvertedMapping

public Mapping getInvertedMapping()

Inverts the tuples of the Mapping, thus the element-order of the tuples will be switched.

Returns:

an inverted mapping of the mapping on which this method was called.

See Also:

Tuple

toString

public java.lang.String toString()

Overrides:

toString in class java.util.AbstractCollection<Tuple>

getLeftModel

public Model getLeftModel()

Returns:

the left model of the mapping.

See Also:

leftModel

getRightModel

public Model getRightModel()

Returns:

the right model of the mapping.

See Also:

rightModel

isCrossProduct

public boolean isCrossProduct()

Whether a full cross-product was used for the mapping.