Java Doc for ConversionHandler.java in  » Scripting » groovy-1.0 » org » codehaus » groovy » runtime » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Scripting » groovy 1.0 » org.codehaus.groovy.runtime 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.codehaus.groovy.runtime.ConversionHandler

All known Subclasses:   org.codehaus.groovy.runtime.ConvertedClosure,  org.codehaus.groovy.runtime.ConvertedMap,
ConversionHandler
abstract public class ConversionHandler implements InvocationHandler(Code)
This class is a general adapter to map a call to an Java interface to a given delegate.


author:
   Ben Yu
author:
   Jochen Theodorou




Constructor Summary
public  ConversionHandler(Object delegate)
     Creates a ConversionHandler with an deleagte.

Method Summary
public  booleanequals(Object obj)
     Indicates whether some other object is "equal to" this one. The delegate is used if the class of the parameter and the current class are equal.
public  ObjectgetDelegate()
     gets the delegate.
public  inthashCode()
     Returns a hash code value for the delegate.
public  Objectinvoke(Object proxy, Method method, Object[] args)
     This method is a default implementation for the invoke method given in Invocationhandler.
abstract public  ObjectinvokeCustom(Object proxy, Method method, Object[] args)
     This method is called for all Methods not defined on Object.
public  StringtoString()
     Returns a String version of the delegate.


Constructor Detail
ConversionHandler
public ConversionHandler(Object delegate)(Code)
Creates a ConversionHandler with an deleagte.
Parameters:
  delegate - the delegate
throws:
  IllegalArgumentException - if the given delegate is null




Method Detail
equals
public boolean equals(Object obj)(Code)
Indicates whether some other object is "equal to" this one. The delegate is used if the class of the parameter and the current class are equal. In other cases the method will return false. The exact class is here used, if inheritance is needed, this method must be overwritten.
See Also:   java.lang.Object.equals(java.lang.Object)



getDelegate
public Object getDelegate()(Code)
gets the delegate. the delegate



hashCode
public int hashCode()(Code)
Returns a hash code value for the delegate.
See Also:   java.lang.Object.hashCode



invoke
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable(Code)
This method is a default implementation for the invoke method given in Invocationhandler. Any call to an method with an declaring class that is not Object is redirected to invokeCustom. Methods like tostring, equals and hashcode are called on the class itself instead of the delegate. It is better to overwrite the invokeCustom method where the Object related methods are filtered out.
See Also:   ConversionHandler.invokeCustom(Object,Method,Object[])
See Also:   InvocationHandler.invoke(java.lang.Objectjava.lang.reflect.Methodjava.lang.Object[])
Parameters:
  proxy - the proxy
Parameters:
  method - the method
Parameters:
  args - the arguments the result of the invocation by method or delegate
throws:
  Throwable - any exception caused by the delegate or the method



invokeCustom
abstract public Object invokeCustom(Object proxy, Method method, Object[] args) throws Throwable(Code)
This method is called for all Methods not defined on Object. The delegate should be called here.
Parameters:
  proxy - the proxy
Parameters:
  method - the method
Parameters:
  args - the arguments the result of the invocation of the delegate
throws:
  Throwable - any exception causes by the delegate
See Also:   ConversionHandler.invoke(Object,Method,Object[])
See Also:   InvocationHandler.invoke(java.lang.Objectjava.lang.reflect.Methodjava.lang.Object[])



toString
public String toString()(Code)
Returns a String version of the delegate.
See Also:   java.lang.Object.toString



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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