edu.washington.cs.supple.rep.values
Class ValueRef

java.lang.Object
  edu.washington.cs.supple.rep.values.Variable
      edu.washington.cs.supple.rep.values.ValueRef

All Implemented Interfaces:

ValueBinding, ValueListener

Direct Known Subclasses:

FirstAndOnlyRef

public class ValueRef

extends Variable

implements ValueListener

ValueRef acts as a pointer to another value.

Author:

dbc1

Constructor Summary

ValueRef(ValueBinding binding)

Method Summary

ValueBinding	deref() Get the referenced value binding.
java.lang.Object	getValue() Get the bound value.
java.lang.Class	getValueClass() Get the class of this variable
void	ref(ValueBinding binding) Change the referenced value binding.
void	setValue(java.lang.Object value) Set the value of this variable.
void	valueChanged(ValueBinding binding, java.lang.Object newValue) Signals variable change.

Methods inherited from class edu.washington.cs.supple.rep.values.Variable

addListener, postLastListener, preFirstListener, processUpdate, removeListener

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueRef

public ValueRef(ValueBinding binding)

Method Detail

getValueClass

public java.lang.Class getValueClass()

Description copied from interface: ValueBinding

Get the class of this variable

Specified by:

getValueClass in interface ValueBinding

Returns:

getValue

public java.lang.Object getValue()

Description copied from interface: ValueBinding

Get the bound value.

Specified by:

getValue in interface ValueBinding

Returns:

setValue

public void setValue(java.lang.Object value)

Description copied from interface: ValueBinding

Set the value of this variable.

Specified by:

setValue in interface ValueBinding

Parameters:

value -

ref

public void ref(ValueBinding binding)

Change the referenced value binding.

Parameters:

binding -

deref

public ValueBinding deref()

Get the referenced value binding.

Returns:

valueChanged

public void valueChanged(ValueBinding binding,
                         java.lang.Object newValue)

Description copied from interface: ValueListener

Signals variable change.

Specified by:

valueChanged in interface ValueListener

Parameters:

binding -

newValue -