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 */ 017package org.apache.camel; 018 019import org.apache.camel.model.ProcessorDefinition; 020 021/** 022 * Represents a model of a node in the runtime route path. 023 * 024 * @version 025 */ 026public interface RouteNode { 027 028 /** 029 * Gets the actual processor this node represents. 030 * 031 * @return the processor, can be <tt>null</tt> in special cases such as an intercepted node 032 */ 033 Processor getProcessor(); 034 035 /** 036 * Gets the model definition that represents this node 037 * 038 * @return the definition, is never <tt>null</tt> 039 */ 040 ProcessorDefinition<?> getProcessorDefinition(); 041 042 /** 043 * Gets a label about this node to be used for tracing or tooling etc. 044 * 045 * @param exchange the current exchange 046 * @return a label for this node 047 */ 048 String getLabel(Exchange exchange); 049 050 /** 051 * Whether this node is abstract (no real processor under the cover). 052 * <p/> 053 * Some nodes that represent intermediate steps are abstract, for instance with 054 * onException, onCompletion or intercept 055 * 056 * @return whether this node is abstract or not 057 */ 058 boolean isAbstract(); 059}