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edu.berkeley.guir.quill.gesturelib
Class FeatureFactory  

java.lang.Object
  edu.berkeley.guir.quill.gesturelib.FeatureFactory

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public class FeatureFactory

extends java.lang.Object

Keeps a cache of features for GestureObject. Known issues: * Only supports Gesture. * Once a Gesture is added, it will never be garbage collected. FeatureFactory could use a WeakHashMap instead of a Hashtable, but that wouldn't help since each value (Feature) has a strong reference to its Gesture.

This software is distributed under the Berkeley Software License.

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Field Summary
(package private) static java.util.Hashtable	featureTable           key is a GestureObject.

 

Constructor Summary
private	FeatureFactory()

 

Method Summary
static void	checkFeatureClass(java.lang.Class c)           If c is not a subclass of Feature, throw an IllegalArgumentException.
protected static Feature	createFeature(java.lang.Class featureClass, GestureObject gestureObj)
static Feature	getFeature(java.lang.Class featureClass, GestureObject gestureObj)
protected static Feature	getFeature(java.util.Hashtable table, java.lang.Class featureClass)
static java.lang.String	getFeatureName(java.lang.Class featureClass)
protected static java.util.Hashtable	getFeatures(Gesture gesture)
static double	getFeatureValue(java.lang.Class featureClass, GestureObject gestureObj)
static double[]	getValues(java.lang.Class[] featureClasses, GestureObject gestureObj)

 

Methods inherited from class java.lang.Object

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

 

Field Detail

featureTable

static java.util.Hashtable featureTable

key is a GestureObject. Value is a Hashtable whose key is a Class and value is a Feature.

Constructor Detail

FeatureFactory

private FeatureFactory()

Method Detail

checkFeatureClass

public static void checkFeatureClass(java.lang.Class c)

If c is not a subclass of Feature, throw an IllegalArgumentException.

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getFeature

public static Feature getFeature(java.lang.Class featureClass,
                                 GestureObject gestureObj)

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getFeatureValue

public static double getFeatureValue(java.lang.Class featureClass,
                                     GestureObject gestureObj)

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createFeature

protected static Feature createFeature(java.lang.Class featureClass,
                                       GestureObject gestureObj)

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getFeature

protected static Feature getFeature(java.util.Hashtable table,
                                    java.lang.Class featureClass)

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getFeatures

protected static java.util.Hashtable getFeatures(Gesture gesture)

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getValues

public static double[] getValues(java.lang.Class[] featureClasses,
                                 GestureObject gestureObj)

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getFeatureName

public static java.lang.String getFeatureName(java.lang.Class featureClass)

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> edu >> berkeley >> guir >> quill >> [ gesturelib overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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