org.melati.poem
Class PersistentFactory

java.lang.Object
  org.melati.poem.PersistentFactory

public final class PersistentFactory
extends Object

A factory for persisting pojos and recreating them.

Since:

14 Jun 2007

Author:

timp

Method Summary

static Object	from(Persistent persistent, Class<?> clazz) Reincarnate an object, populated from the store.
static Persistent	fromInstance(Database db, Object pojo)
static Persistent	populatedPersistent(Table table, Object pojo)

Methods inherited from class java.lang.Object

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

Method Detail

fromInstance

public static Persistent fromInstance(Database db,
                                      Object pojo)

Parameters:

db - database to look in

pojo - the instance to create a Persistent from.

Returns:

A new or existing persisted Persistent

populatedPersistent

public static Persistent populatedPersistent(Table table,
                                             Object pojo)

Parameters:

table - the Table the persisted pojo is to be stored in

pojo - the object to populate the Persistent from

Returns:

A floating Persistent with fields populated from the given pojo

from

public static Object from(Persistent persistent,
                          Class<?> clazz)
                   throws NoSuchMethodException

Reincarnate an object, populated from the store.

Parameters:

persistent - the Persistent to read from

clazz - the class to create a new, populated instance of

Returns:

an instance of the given Class, populated from the given Persistent

Throws:

NoSuchMethodException