oracle.toplink.indirection
Class ValueHolder

java.lang.Object
oracle.toplink.indirection.ValueHolder

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable, ValueHolderInterface

public class ValueHolder

extends java.lang.Object

implements ValueHolderInterface, java.lang.Cloneable, java.io.Serializable

Purpose: Act as a place holder for a variable that required a value holder interface. This class should be used to initialze an objects attributes that are using indirection is their mappings.

See Also:

Serialized Form

Constructor Summary

ValueHolder()
PUBLIC: Initialize the holder.

ValueHolder(java.lang.Object value)
PUBLIC: Initialize the holder with an object.

Method Summary

java.lang.Object	getValue() PUBLIC: Return the wrapped object.
boolean	isInstantiated() PUBLIC: Return a boolean indicating whether the wrapped object has been set or not.
void	setValue(java.lang.Object value) PUBLIC: Set the wrapped object.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ValueHolder

public ValueHolder()

PUBLIC: Initialize the holder.

ValueHolder

public ValueHolder(java.lang.Object value)

PUBLIC: Initialize the holder with an object.

Method Detail

getValue

public java.lang.Object getValue()

PUBLIC: Return the wrapped object.

Specified by:

getValue in interface ValueHolderInterface

isInstantiated

public boolean isInstantiated()

PUBLIC: Return a boolean indicating whether the wrapped object has been set or not.

Specified by:

isInstantiated in interface ValueHolderInterface

setValue

public void setValue(java.lang.Object value)

PUBLIC: Set the wrapped object.

Specified by:

setValue in interface ValueHolderInterface