001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *  http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    
020    package org.apache.geronimo.mail.util;
021    
022    import java.io.IOException;
023    import java.io.OutputStream;
024    
025    /**
026     * Encode and decode byte arrays (typically from binary to 7-bit ASCII
027     * encodings).
028     */
029    public interface Encoder
030    {
031        int encode(byte[] data, int off, int length, OutputStream out) throws IOException;
032    
033        int decode(byte[] data, int off, int length, OutputStream out) throws IOException;
034    
035        int decode(String data, OutputStream out) throws IOException;
036    }