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.component.bean; 018 019import org.apache.camel.NoSuchBeanException; 020import org.apache.camel.Processor; 021 022/** 023 * Object holder for a bean. 024 * 025 * @version 026 */ 027public interface BeanHolder { 028 029 /** 030 * Gets the bean. 031 * 032 * @throws NoSuchBeanException is thrown if the bean cannot be found. 033 */ 034 Object getBean() throws NoSuchBeanException; 035 036 /** 037 * Gets a {@link Processor} for this bean, if supported. 038 * 039 * @return the {@link Processor}, or <tt>null</tt> if not supported. 040 */ 041 Processor getProcessor(); 042 043 /** 044 * Whether a {@link Processor} is supported by this bean holder. 045 * 046 * @return <tt>true</tt> if the holder can supporting using a processor, <tt>false</tt> otherwise 047 */ 048 boolean supportProcessor(); 049 050 /** 051 * Gets bean info for the bean. 052 */ 053 BeanInfo getBeanInfo(); 054 055 /** 056 * Gets bean info for the given bean. 057 * <p/> 058 * This implementation allows a thread safe usage for {@link BeanHolder} implementations 059 * such as the {@link RegistryBean}. 060 * 061 * @param bean the bean 062 * @return <tt>null</tt> if not supported, then use {@link #getBeanInfo()} instead. 063 */ 064 BeanInfo getBeanInfo(Object bean); 065}