jadex.commons.beans

Class PersistenceDelegate

java.lang.Object

jadex.commons.beans.PersistenceDelegate

Direct Known Subclasses:

DefaultPersistenceDelegate

public abstract class PersistenceDelegate
extends Object

PersistenceDelegate instances write received bean objects to encoders in the form of expressions and statements, which can be evaluated or executed to reconstruct the recorded bean objects in a new environment during decoding. Expressions are usually used to instantiate bean objects in the new environment, and statements are used to initialize their properties if necessary. As a result, the reconstructed bean objects become equivalent to the original recorded ones in terms of their public states.

Constructor Summary

Constructors

Constructor and Description
PersistenceDelegate() Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	writeObject(Object oldInstance, Encoder out) Writes a bean object to the given encoder.

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistenceDelegate

public PersistenceDelegate()

Default constructor.

Method Detail

writeObject

public void writeObject(Object oldInstance,
               Encoder out)

Writes a bean object to the given encoder. First it is checked whether the simulating new object can be mutated to the old instance. If yes, it is initialized to produce a series of expressions and statements that can be used to restore the old instance. Otherwise, remove the new object in the simulating new environment and writes an expression that can instantiate a new instance of the same type as the old one to the given encoder.

Parameters:

oldInstance - the old instance to be written

out - the encoder that the old instance will be written to