edu.cmu.minorthird.classify
Class FeatureFactory

java.lang.Object
  edu.cmu.minorthird.classify.FeatureFactory

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

SGMFeatureFactory

public class FeatureFactory
extends java.lang.Object
implements java.io.Serializable

Creates Features, and maintains a mapping between Features and numeric ids. Also ensures that only a single feature instance exists with a particular name.

See Also:

Serialized Form

Nested Class Summary

protected class

FeatureFactory.CompactInstance A compact but immutable implementation of an instance.

Constructor Summary

FeatureFactory()

Method Summary

Example	compress(Example example) Return a version of the Example in which all features have been translated to canonical versions from the feature factory.
FeatureFactory.CompactInstance	compress(Instance instance) Return a version of the instance in which all features have been translated to canonical versions from the feature factory
MultiExample	compress(MultiExample example) Return a version of the MultiExample in which all features have been translated to canonical versions from the feature factory.
boolean	contains(Feature f)
Feature	getFeature(Feature f)
Feature	getFeature(int id)
Feature	getFeature(java.lang.String fullName)
Feature	getFeature(java.lang.String[] name)
int	getID(Feature feature)
int	getMaxFeatureIndex()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureFactory

public FeatureFactory()

Method Detail

getMaxFeatureIndex

public int getMaxFeatureIndex()

contains

public boolean contains(Feature f)

getFeature

public Feature getFeature(Feature f)

getFeature

public Feature getFeature(java.lang.String fullName)

getFeature

public Feature getFeature(java.lang.String[] name)

getFeature

public Feature getFeature(int id)

getID

public int getID(Feature feature)

compress

public FeatureFactory.CompactInstance compress(Instance instance)

Return a version of the instance in which all features have been translated to canonical versions from the feature factory

compress

public Example compress(Example example)

Return a version of the Example in which all features have been translated to canonical versions from the feature factory.

compress

public MultiExample compress(MultiExample example)

Return a version of the MultiExample in which all features have been translated to canonical versions from the feature factory.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object