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;
018
019
020 /**
021 * A pluggable strategy to be able to convert objects <a
022 * href="http://camel.apache.org/type-converter.html">to different
023 * types</a> such as to and from String, InputStream/OutputStream,
024 * Reader/Writer, Document, byte[], ByteBuffer etc
025 *
026 * @version $Revision: 738604 $
027 */
028 public interface TypeConverter {
029
030 /**
031 * Converts the value to the specified type
032 *
033 * @param type the requested type
034 * @param value the value to be converted
035 * @return the converted value
036 * @throws NoTypeConversionAvailableException if conversion not possible
037 */
038 <T> T convertTo(Class<T> type, Object value);
039
040 /**
041 * Converts the value to the specified type in the context of an exchange
042 * <p/>
043 * Used when conversion requires extra information from the current
044 * exchange (such as encoding).
045 *
046 * @param type the requested type
047 * @param exchange the current exchange
048 * @param value the value to be converted
049 * @return the converted value
050 * @throws NoTypeConversionAvailableException} if conversion not possible
051 */
052 <T> T convertTo(Class<T> type, Exchange exchange, Object value);
053 }