org.planx.xmlstore.nodes
Class NodeDiscriminator

java.lang.Object
  org.planx.msd.util.AbstractDiscriminator<SystemNode>
      org.planx.xmlstore.nodes.NodeDiscriminator

All Implemented Interfaces:

Discriminator<SystemNode>

public class NodeDiscriminator
extends AbstractDiscriminator<SystemNode>

A Discriminator of SystemNodes.

Author:

Thomas Ambus

Constructor Summary

NodeDiscriminator()

NodeDiscriminator(Memory memory)

Method Summary

<U,S> Collection<List<S>>

discriminate(List<? extends U> values, Extractor<U,? extends SystemNode,S> e) Discriminates a List of values using an Extractor, and returns a Collection of Lists, each representing an equivalence class containing elements from values that are equivalent.

Methods inherited from class org.planx.msd.util.AbstractDiscriminator

discriminate

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeDiscriminator

public NodeDiscriminator()

NodeDiscriminator

public NodeDiscriminator(Memory memory)

Method Detail

discriminate

public <U,S> Collection<List<S>> discriminate(List<? extends U> values,
                                              Extractor<U,? extends SystemNode,S> e)

Description copied from interface: Discriminator

Discriminates a List of values using an Extractor, and returns a Collection of Lists, each representing an equivalence class containing elements from values that are equivalent. The Extractor performs the task of extracting two kinds of objects from the input values: The label which is the object equivalence is defined upon, and the value which is the object that will be returned. That is, the label determines which equivalence class the value goes into.

The Collection of Lists returned should be considered unmodifiable (though, in some cases they might actually be modifiable, but this behaviour should not be relied upon).

Specified by:

discriminate in interface Discriminator<SystemNode>

Specified by:

discriminate in class AbstractDiscriminator<SystemNode>