Package org.springframework.integration.jpa.support

Class JpaUtils

java.lang.Object

org.springframework.integration.jpa.support.JpaUtils

public final class JpaUtils
extends Object

This Utility contains a sub-set of utility methods from the Spring Data JPA Project. As the Spring Integration JPA adapter uses only these utility methods, they were copied into this class in order to prevent having to declare a dependency on Spring Data JPA.

Since:

2.2

Author:

Oliver Gierke, Gunnar Hillert, Gary Russell

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DELETE_ALL_QUERY_STRING

Method Summary

Modifier and Type	Method	Description
static <T> Query	applyAndBind(String queryString, Iterable<T> entities, EntityManager entityManager)	Creates a where-clause referencing the given entities and appends it to the given query string.
static String	detectAlias(String query)	Resolves the alias for the entity to be retrieved from the given JPA query.
static String	getEntityName(EntityManager em, Class<?> entityClass)
static String	getQueryString(String template, String entityName)	Returns the query string for the given class name.

Methods inherited from class java.lang.Object

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

Field Details

DELETE_ALL_QUERY_STRING

public static final String DELETE_ALL_QUERY_STRING

See Also:

• Constant Field Values

Method Details

detectAlias

public static String detectAlias(String query)

Resolves the alias for the entity to be retrieved from the given JPA query.

Parameters:

query - The query.

Returns:

The alias, or null.

applyAndBind

public static <T> Query applyAndBind(String queryString,
 Iterable<T> entities,
 EntityManager entityManager)

Creates a where-clause referencing the given entities and appends it to the given query string. Binds the given entities to the query.

Type Parameters:

T - The entity type.

Parameters:

queryString - The query string.

entities - The entities.

entityManager - The entity manager.

Returns:

The query.

getQueryString

public static String getQueryString(String template,
 String entityName)

Returns the query string for the given class name.

Parameters:

template - The template.

entityName - The entity name.

Returns:

The query string.

getEntityName

public static String getEntityName(EntityManager em,
 Class<?> entityClass)