/*
* Copyright 2002-2016 the original author or authors.
*
* 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.springframework.security.messaging.util.matcher;
import org.springframework.messaging.Message;
/**
* API for determining if a {@link Message} should be matched on.
*
* @since 4.0
* @author Rob Winch
*/
public interface MessageMatcher<T> {
/**
* Returns true if the {@link Message} matches, else false
* @param message the {@link Message} to match on
* @return true if the {@link Message} matches, else false
*/
boolean matches(Message<? extends T> message);
/**
* Matches every {@link Message}
*/
MessageMatcher<Object> ANY_MESSAGE = new MessageMatcher<Object>() {
public boolean matches(Message<? extends Object> message) {
return true;
}
public String toString() {
return "ANY_MESSAGE";
}
};
}