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Java Source Code / Java Documentation » Science » Apache commons math 1.1 » org.apache.commons.math.util 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.commons.math.util.TransformerMap

TransformerMap
public class TransformerMap implements NumberTransformer,Serializable(Code)
This TansformerMap automates the transformation of of mixed object types. It provides a means to set NumberTransformers that will be selected based on the Class of the object handed to the Maps double transform(Object o) method.
version:
   $Revision: 348519 $ $Date: 2005-11-23 12:12:18 -0700 (Wed, 23 Nov 2005) $



Constructor Summary
public  TransformerMap()
    

Method Summary
public  Setclasses()
     Returns the Set of Classes used as keys in the map.
public  voidclear()
     Clears all the Class to Transformer mappings.
public  booleancontainsClass(Class key)
     Tests if a Class is present in the TransformerMap.
public  booleancontainsTransformer(NumberTransformer value)
     Tests if a NumberTransformer is present in the TransformerMap.
public  NumberTransformergetTransformer(Class key)
     Returns the Transformer that is mapped to a class if mapping is not present, this returns null.
public  ObjectputTransformer(Class key, NumberTransformer transformer)
     Sets a Class to Transformer Mapping in the Map.
public  ObjectremoveTransformer(Class key)
     Removes a Class to Transformer Mapping in the Map.
public  doubletransform(Object o)
     Attempts to transform the Object against the map of NumberTransformers.
public  Collectiontransformers()
     Returns the Set of NumberTransformers used as values in the map.


Constructor Detail
TransformerMap
public TransformerMap()(Code)




Method Detail
classes
public Set classes()(Code)
Returns the Set of Classes used as keys in the map. Set of Classes



clear
public void clear()(Code)
Clears all the Class to Transformer mappings.



containsClass
public boolean containsClass(Class key)(Code)
Tests if a Class is present in the TransformerMap.
Parameters:
  key - Class to check true|false



containsTransformer
public boolean containsTransformer(NumberTransformer value)(Code)
Tests if a NumberTransformer is present in the TransformerMap.
Parameters:
  value - NumberTransformer to check true|false



getTransformer
public NumberTransformer getTransformer(Class key)(Code)
Returns the Transformer that is mapped to a class if mapping is not present, this returns null.
Parameters:
  key - The Class of the object the mapped NumberTransformer or null.



putTransformer
public Object putTransformer(Class key, NumberTransformer transformer)(Code)
Sets a Class to Transformer Mapping in the Map. If the Class is already present, this overwrites that mapping.
Parameters:
  key - The Class
Parameters:
  transformer - The NumberTransformer the replaced transformer if one is present



removeTransformer
public Object removeTransformer(Class key)(Code)
Removes a Class to Transformer Mapping in the Map.
Parameters:
  key - The Class the removed transformer if one is present ornull if none was present.



transform
public double transform(Object o) throws MathException(Code)
Attempts to transform the Object against the map of NumberTransformers. Otherwise it returns Double.NaN.
See Also:   org.apache.commons.math.util.NumberTransformer.transform(java.lang.Object)



transformers
public Collection transformers()(Code)
Returns the Set of NumberTransformers used as values in the map. Set of NumberTransformers



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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