001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.spi;
018    
019    import java.util.EventObject;
020    
021    import org.apache.camel.Exchange;
022    import org.apache.camel.Processor;
023    import org.apache.camel.model.ProcessorDefinition;
024    
025    /**
026     * A condition to define when a given {@link Exchange} matches when is being routed.
027     * <p/>
028     * Is used by the {@link org.apache.camel.spi.Debugger} to apply {@link Condition}s
029     * to {@link org.apache.camel.spi.Breakpoint}s to define rules when the breakpoints should match.
030     *
031     * @version 
032     */
033    public interface Condition {
034    
035        /**
036         * Does the condition match
037         *
038         * @param exchange the exchange
039         * @param processor  the {@link Processor}
040         * @param definition the present location in the route where the {@link Exchange} is located at
041         * @return <tt>true</tt> to match, <tt>false</tt> otherwise
042         */
043        boolean matchProcess(Exchange exchange, Processor processor, ProcessorDefinition<?> definition);
044    
045        /**
046         * Does the condition match
047         *
048         * @param exchange the exchange
049         * @param event    the event (instance of {@link org.apache.camel.management.event.AbstractExchangeEvent}
050         * @return <tt>true</tt> to match, <tt>false</tt> otherwise
051         * @see org.apache.camel.management.event.AbstractExchangeEvent
052         */
053        boolean matchEvent(Exchange exchange, EventObject event);
054    
055    }