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/*
* 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.osoa.sca.annotations;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import java.lang.annotation.Retention;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Target;
/**
* When placed on a service interface, this annotation specifies the interface
* to be used for callbacks.
* <p/>
* When placed on a method or field, this annotation denotes the injection
* site to be used for a callback reference.
* <p/>
* There is a error in the 1.00 draft spec in the declaration of this interface.
* The form defined here is a proposed correction for that error.
*
* @version $Rev$ $Date$
*/
@Target({TYPE, METHOD, FIELD})
@Retention(RUNTIME)
public @interface Callback {
/**
* The Class of the associated callback interface.
*
* @return the associated callback interface
*/
Class<?> value() default Void.class;
}
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