org.compass.gps.device.jpa.queryprovider
Class DefaultJpaQueryProvider

java.lang.Object
  org.compass.gps.device.jpa.queryprovider.DefaultJpaQueryProvider

All Implemented Interfaces:

JpaQueryProvider

Direct Known Subclasses:

HibernateJpaQueryProvider

public class DefaultJpaQueryProvider
extends Object
implements JpaQueryProvider

A simple Jpa query provider based on a select statement. The select statement can be automatically generated based on the entity name as well.

Author:

kimchy

Constructor Summary

DefaultJpaQueryProvider(Class<?> entityClass, String entityName)
Creates a new query provider based on the entity name.

DefaultJpaQueryProvider(String selectQuery)
Creates a new query provider based on the provided select statement.

Method Summary

javax.persistence.Query	createQuery(javax.persistence.EntityManager entityManager, EntityInformation entityInformation) Creates a query based on the select statement initlaized in the query provider construction.
protected boolean	isUsingDefaultSelectQuery()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultJpaQueryProvider

public DefaultJpaQueryProvider(Class<?> entityClass,
                               String entityName)

Creates a new query provider based on the entity name. The select statement is select x from entityName x.

Parameters:

entityClass - The entity class

entityName - The entity name

DefaultJpaQueryProvider

public DefaultJpaQueryProvider(String selectQuery)

Creates a new query provider based on the provided select statement.

Parameters:

selectQuery - The select query

Method Detail

createQuery

public javax.persistence.Query createQuery(javax.persistence.EntityManager entityManager,
                                           EntityInformation entityInformation)

Creates a query based on the select statement initlaized in the query provider construction.

Specified by:

createQuery in interface JpaQueryProvider

Parameters:

entityManager - The entity manager to create the query with

entityInformation - The enity information to create the query with

Returns:

the Jpa query

isUsingDefaultSelectQuery

protected boolean isUsingDefaultSelectQuery()

toString

public String toString()

Overrides:

toString in class Object