Encoder JDK 1.6)

Methods

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pack-private void clear ()

public Object get (Object oldInstance)

Returns a tentative value for oldInstance in the environment created by this stream.

Returns a tentative value for oldInstance in
the environment created by this stream. A persistence
delegate can use its mutatesTo method to
determine whether this value may be initialized to
form the equivalent object at the output or whether
a new object must be instantiated afresh. If the
stream has not yet seen this value, null is returned.
Returns: The object, null if the object has not been seen before.
Parameters:
- oldInstance - The instance to be looked up.

pack-private Object getAttribute (Object key)

public ExceptionListener getExceptionListener ()

Gets the exception handler for this stream.

public PersistenceDelegate getPersistenceDelegate (Class<Object> type)

Returns the persistence delegate for the given type.






       

pack-private Object

 getValue

(Expression exp)







    
    







       

public Object

 remove

(Object oldInstance)







    
         
    
    Removes the entry for this instance, returning the old entry.


    
         
        Removes the entry for this instance, returning the old entry.
        
        



Returns:

    The entry that was removed. 





Parameters:


 - oldInstance - The entry that should be removed.











See Also:

  Encoder.get(java.lang.Object), 



    






       

pack-private void

 setAttribute

(Object key, Object value)







    
    







       

public void

 setExceptionListener

(ExceptionListener exceptionListener)







    
         
    
    Sets the exception handler for this stream to exceptionListener.


    
         
        Sets the exception handler for this stream to exceptionListener. 
 The exception handler is notified when this stream catches recoverable 
 exceptions.
        
        




Parameters:


 - exceptionListener - The exception handler for this stream;
       if null the default exception listener will be used.











See Also:

  Encoder.getExceptionListener(), 



    






       

public void

 setPersistenceDelegate

(Class<Object> type, PersistenceDelegate persistenceDelegate)







    
         
    
    Sets the persistence delegate associated with this type to
 persistenceDelegate.


    
         
        Sets the persistence delegate associated with this type to
 persistenceDelegate.
        
        




Parameters:


 - type - The class of objects that persistenceDelegate applies to.


 - persistenceDelegate - The persistence delegate for instances of type.











See Also:

  Encoder.getPersistenceDelegate(java.lang.Class), 

  Introspector.getBeanInfo(java.lang.Class), 

  BeanInfo.getBeanDescriptor(), 



    






       

public void

 writeExpression

(Expression oldExp)







    
         
    
    The implementation first checks to see if an 
 expression with this value has already been written.


    
         
        The implementation first checks to see if an 
 expression with this value has already been written. 
 If not, the expression is cloned, using 
 the same procedure as writeStatement, 
 and the value of this expression is reconciled 
 with the value of the cloned expression   
 by calling writeObject.
        
        




Parameters:


 - oldExp - The expression to be written to the stream.










    






       

protected void

 writeObject

(Object o)







    
         
    
    Write the specified object to the output stream.


    
         
        Write the specified object to the output stream. 
 The serialized form will denote a series of 
 expressions, the combined effect of which will create 
 an equivalent object when the input stream is read. 
 By default, the object is assumed to be a JavaBean 
 with a nullary constructor, whose state is defined by 
 the matching pairs of "setter" and "getter" methods 
 returned by the Introspector.
        
        




Parameters:


 - o - The object to be written to the stream.











See Also:

  XMLDecoder.readObject(), 



    






       

public void

 writeStatement

(Statement oldStm)







    
         
    
    Writes statement oldStm to the stream.


    
         
        Writes statement oldStm to the stream. 
 The oldStm should be written entirely 
 in terms of the callers environment, i.e. the 
 target and all arguments should be part of the 
 object graph being written. These expressions 
 represent a series of "what happened" expressions 
 which tell the output stream how to produce an 
 object graph like the original. 
 
 The implementation of this method will produce 
 a second expression to represent the same expression in 
 an environment that will exist when the stream is read. 
 This is achieved simply by calling writeObject 
 on the target and all the arguments and building a new 
 expression with the results.
        
        




Parameters:


 - oldStm - The expression to be written to the stream.