org.springframework.data.jpa.repository.query

Class Jpa21Utils

java.lang.Object

org.springframework.data.jpa.repository.query.Jpa21Utils

public class Jpa21Utils
extends Object

Utils for bridging various JPA 2.1 features.

Since:

1.6

Author:

Thomas Darimont, Oliver Gierke, Christoph Strobl, Mark Paluch

Method Summary

Modifier and Type	Method and Description
static Map<String,Object>	tryGetFetchGraphHints(javax.persistence.EntityManager em, JpaEntityGraph entityGraph, Class<?> entityType) Returns a Map with hints for a JPA 2.1 fetch-graph or load-graph if running under JPA 2.1.

Methods inherited from class java.lang.Object

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

Method Detail

tryGetFetchGraphHints

public static Map<String,Object> tryGetFetchGraphHints(javax.persistence.EntityManager em,
                                                       @Nullable
                                                       JpaEntityGraph entityGraph,
                                                       Class<?> entityType)

Returns a Map with hints for a JPA 2.1 fetch-graph or load-graph if running under JPA 2.1.

Parameters:

em - must not be null.

entityGraph - can be null.

entityType - must not be null.

Returns:

a Map with the hints or an empty Map if no hints were found.

Since:

1.8