001/* 002 * Copyright 2002-2015 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.validation.beanvalidation; 018 019import javax.validation.ConstraintValidator; 020import javax.validation.ConstraintValidatorFactory; 021 022import org.springframework.beans.factory.config.AutowireCapableBeanFactory; 023import org.springframework.util.Assert; 024 025/** 026 * JSR-303 {@link ConstraintValidatorFactory} implementation that delegates to a 027 * Spring BeanFactory for creating autowired {@link ConstraintValidator} instances. 028 * 029 * <p>Note that this class is meant for programmatic use, not for declarative use 030 * in a standard {@code validation.xml} file. Consider 031 * {@link org.springframework.web.bind.support.SpringWebConstraintValidatorFactory} 032 * for declarative use in a web application, e.g. with JAX-RS or JAX-WS. 033 * 034 * @author Juergen Hoeller 035 * @since 3.0 036 * @see org.springframework.beans.factory.config.AutowireCapableBeanFactory#createBean(Class) 037 * @see org.springframework.context.ApplicationContext#getAutowireCapableBeanFactory() 038 */ 039public class SpringConstraintValidatorFactory implements ConstraintValidatorFactory { 040 041 private final AutowireCapableBeanFactory beanFactory; 042 043 044 /** 045 * Create a new SpringConstraintValidatorFactory for the given BeanFactory. 046 * @param beanFactory the target BeanFactory 047 */ 048 public SpringConstraintValidatorFactory(AutowireCapableBeanFactory beanFactory) { 049 Assert.notNull(beanFactory, "BeanFactory must not be null"); 050 this.beanFactory = beanFactory; 051 } 052 053 054 @Override 055 public <T extends ConstraintValidator<?, ?>> T getInstance(Class<T> key) { 056 return this.beanFactory.createBean(key); 057 } 058 059 // Bean Validation 1.1 releaseInstance method 060 public void releaseInstance(ConstraintValidator<?, ?> instance) { 061 this.beanFactory.destroyBean(instance); 062 } 063 064}