com.mysema.query.jpa.impl

Class JPAUpdateClause

java.lang.Object

com.mysema.query.jpa.impl.JPAUpdateClause

All Implemented Interfaces:

DMLClause<JPAUpdateClause>, StoreClause<JPAUpdateClause>, UpdateClause<JPAUpdateClause>, FilteredClause<JPAUpdateClause>

public class JPAUpdateClause
extends Object
implements UpdateClause<JPAUpdateClause>

UpdateClause implementation for JPA

Author:

tiwe

Constructor Summary

Constructors

Constructor and Description
JPAUpdateClause(javax.persistence.EntityManager em, EntityPath<?> entity)
JPAUpdateClause(javax.persistence.EntityManager em, EntityPath<?> entity, JPQLTemplates templates)

Method Summary

Methods

Modifier and Type	Method and Description
long	execute() Execute the clause and return the amount of affected rows
boolean	isEmpty() Returns true, if no bindings have been set, otherwise false.
JPAUpdateClause	set(List<? extends Path<?>> paths, List<?> values) Set the paths to be updated
<T> JPAUpdateClause	set(Path<T> path, Expression<? extends T> expression) Add an expression binding
<T> JPAUpdateClause	set(Path<T> path, T value) Add a value binding
<T> JPAUpdateClause	setNull(Path<T> path) Bind the given path to null
String	toString()
JPAUpdateClause	where(Predicate... o) Adds the given filter conditions

Methods inherited from class java.lang.Object

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

Constructor Detail

JPAUpdateClause

public JPAUpdateClause(javax.persistence.EntityManager em,
               EntityPath<?> entity)

JPAUpdateClause

public JPAUpdateClause(javax.persistence.EntityManager em,
               EntityPath<?> entity,
               JPQLTemplates templates)

Method Detail

execute

public long execute()

Description copied from interface: DMLClause

Execute the clause and return the amount of affected rows

Specified by:

execute in interface DMLClause<JPAUpdateClause>

Returns:

set

public <T> JPAUpdateClause set(Path<T> path,
                      T value)

Description copied from interface: StoreClause

Add a value binding

Specified by:

set in interface StoreClause<JPAUpdateClause>

Parameters:

path - path to be updated

value - value to set

Returns:

set

public <T> JPAUpdateClause set(Path<T> path,
                      Expression<? extends T> expression)

Description copied from interface: StoreClause

Add an expression binding

Specified by:

set in interface StoreClause<JPAUpdateClause>

Returns:

setNull

public <T> JPAUpdateClause setNull(Path<T> path)

Description copied from interface: StoreClause

Bind the given path to null

Specified by:

setNull in interface StoreClause<JPAUpdateClause>

Returns:

set

public JPAUpdateClause set(List<? extends Path<?>> paths,
                  List<?> values)

Description copied from interface: UpdateClause

Set the paths to be updated

Specified by:

set in interface UpdateClause<JPAUpdateClause>

Returns:

where

public JPAUpdateClause where(Predicate... o)

Description copied from interface: FilteredClause

Adds the given filter conditions

Skips null arguments

Specified by:

where in interface FilteredClause<JPAUpdateClause>

Parameters:

o - filter conditions to be added

Returns:

toString

public String toString()

Overrides:

toString in class Object

isEmpty

public boolean isEmpty()

Description copied from interface: StoreClause

Returns true, if no bindings have been set, otherwise false.

Specified by:

isEmpty in interface StoreClause<JPAUpdateClause>

Returns: