trunk/bval-guice/src/main/java/org/apache/bval/guice/GuiceAwareConstraintValidatorFactory.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.bval.guice;

import javax.inject.Inject;
import javax.inject.Singleton;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorFactory;

import com.google.inject.Injector;

/**
 * {@code javax.validation.ConstraintValidatorFactory} implementation that
 * relies on Google Guice.
 *
 * @version $Id$
 */
@Singleton
final class GuiceAwareConstraintValidatorFactory implements ConstraintValidatorFactory {

    @Inject
    private Injector injector;

    public void setInjector(Injector injector) {
        this.injector = injector;
    }

    /**
     * {@inheritDoc}
     */
    public <T extends ConstraintValidator<?, ?>> T getInstance(Class<T> key) {
        return this.injector.getInstance(key);
    }

}