core/api/src/main/java/org/apache/zest/api/service/qualifier/AnnotationQualifier.java

/*
 * Copyright (c) 2009, Rickard Öberg. All Rights Reserved.
 *
 * Licensed 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.zest.api.service.qualifier;

import java.lang.annotation.Annotation;
import org.apache.zest.api.service.ServiceReference;
import org.apache.zest.functional.Specification;

/**
 * Constructs a Specification for a given qualifier annotation
 */
public interface AnnotationQualifier<QUALIFIER extends Annotation>
{
    public <T> Specification<ServiceReference<?>> qualifier( QUALIFIER qualifier );
}