org.tomitribe.hodao.impl

Class PersistenceHandler

java.lang.Object

org.tomitribe.hodao.impl.PersistenceHandler

public class PersistenceHandler
extends Object

Beautiful Source of DRY CRUD

DRY: Don't Repeat Yourself CRUD: Create Read Update Delete

Version:

$Revision$ $Date$

Method Summary

Methods

Modifier and Type	Method and Description
static Object	findByPrimaryKey(javax.persistence.EntityManager em, Method method, Object[] args) READ: Find an entity by primary key
static Object	invoke(javax.persistence.EntityManager em, Method method, Object[] args)
static Object	invokeNamedQuery(javax.persistence.EntityManager em, Method method, Object[] args) READ: Execute a NamedQuery
static Object	invokeQueryString(javax.persistence.EntityManager em, Method method, Object[] args)
static Object	merge(javax.persistence.EntityManager em, Method method, Object[] args) UPDATE Perform a merge on the passed in entity
static Object	persist(javax.persistence.EntityManager em, Method method, Object[] args) CREATE Persist the specified entity
static Object	remove(javax.persistence.EntityManager em, Method method, Object[] args) DELETE Remove the specified entity

Methods inherited from class java.lang.Object

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

Method Detail

invoke

public static Object invoke(javax.persistence.EntityManager em,
            Method method,
            Object[] args)
                     throws Throwable

Throws:

Throwable

persist

public static Object persist(javax.persistence.EntityManager em,
             Method method,
             Object[] args)
                      throws Throwable

CREATE

Persist the specified entity

Parameters:

em -

method -

args -

Returns:

Throws:

Throwable

findByPrimaryKey

public static Object findByPrimaryKey(javax.persistence.EntityManager em,
                      Method method,
                      Object[] args)
                               throws Throwable

READ:

Find an entity by primary key

Parameters:

em -

method -

args -

Returns:

Throws:

Throwable

invokeNamedQuery

public static Object invokeNamedQuery(javax.persistence.EntityManager em,
                      Method method,
                      Object[] args)
                               throws Throwable

READ:

Execute a NamedQuery

Parameters:

em -

method -

args -

Returns:

Throws:

Throwable

invokeQueryString

public static Object invokeQueryString(javax.persistence.EntityManager em,
                       Method method,
                       Object[] args)
                                throws Throwable

Throws:

Throwable

merge

public static Object merge(javax.persistence.EntityManager em,
           Method method,
           Object[] args)
                    throws Throwable

UPDATE

Perform a merge on the passed in entity

Parameters:

em -

method -

args -

Returns:

Throws:

Throwable

remove

public static Object remove(javax.persistence.EntityManager em,
            Method method,
            Object[] args)
                     throws Throwable

DELETE

Remove the specified entity

Parameters:

em -

method -

args -

Returns:

Throws:

Throwable