play.db.jpa

Class GenericModel.JPAQuery

java.lang.Object

play.db.jpa.GenericModel.JPAQuery

Direct Known Subclasses:

JPASupport.JPAQuery

Enclosing class:

GenericModel

public static class GenericModel.JPAQuery
extends java.lang.Object

A JPAQuery

Field Summary

Fields

Modifier and Type	Field and Description
javax.persistence.Query	query
java.lang.String	sq

Constructor Summary

Constructors

Constructor and Description
JPAQuery(javax.persistence.Query query)
JPAQuery(java.lang.String sq, javax.persistence.Query query)

Method Summary

Modifier and Type	Method and Description
GenericModel.JPAQuery	bind(java.lang.String name, java.lang.Object param) Bind a JPQL named parameter to the current query.
<T> java.util.List<T>	fetch() Retrieve all results of the query
<T> java.util.List<T>	fetch(int max) Retrieve results of the query
<T> java.util.List<T>	fetch(int page, int length) Retrieve a page of result
<T> T	first()
<T> GenericModel.JPAQuery	from(int position) Set the position to start
GenericModel.JPAQuery	setParameter(java.lang.String name, java.lang.Object param) Set a named parameter for this query.

Methods inherited from class java.lang.Object

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

Field Detail

query

public javax.persistence.Query query

sq

public java.lang.String sq

Constructor Detail

JPAQuery

public JPAQuery(java.lang.String sq,
                javax.persistence.Query query)

JPAQuery

public JPAQuery(javax.persistence.Query query)

Method Detail

first

public <T> T first()

bind

public GenericModel.JPAQuery bind(java.lang.String name,
                                  java.lang.Object param)

Bind a JPQL named parameter to the current query. Careful, this will also bind count results. This means that Integer get transformed into long so hibernate can do the right thing. Use the setParameter if you just want to set parameters.

Parameters:

name - name of the object

param - current query

Returns:

The query

setParameter

public GenericModel.JPAQuery setParameter(java.lang.String name,
                                          java.lang.Object param)

Set a named parameter for this query.

Parameters:

name - Parameter name

param - The given parameters

Returns:

The query

fetch

public <T> java.util.List<T> fetch()

Retrieve all results of the query

Type Parameters:

T - the type of the entity

Returns:

A list of entities

fetch

public <T> java.util.List<T> fetch(int max)

Retrieve results of the query

Type Parameters:

T - The entity class

Parameters:

max - Max results to fetch

Returns:

A list of entities

from

public <T> GenericModel.JPAQuery from(int position)

Set the position to start

Type Parameters:

T - The entity class

Parameters:

position - Position of the first element

Returns:

A new query

fetch

public <T> java.util.List<T> fetch(int page,
                                   int length)

Retrieve a page of result

Type Parameters:

T - The entity class

Parameters:

page - Page number (start at 1)

length - (page length)

Returns:

a list of entities