src/main/java/org/apache/james/mime4j/RFC3066ContentLanguageDescriptor.java

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *   http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing,
  13  * software distributed under the License is distributed on an
  14  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15  * KIND, either express or implied.  See the License for the
  16  * specific language governing permissions and limitations
  17  * under the License.
  18  */
  19 package org.apache.james.mime4j;
  20
  21 import java.util.List;
  22
  23 /**
  24  * Describes RFC3066 content-language headers.
  25  */
  26 public interface RFC3066ContentLanguageDescriptor {
  27
  28     /**
  29      * Get the <code>content-language</code> header values.
  30      * Each applicable language tag will be returned in order.
  31      * See <a href='http://tools.ietf.org/html/rfc4646'>RFC4646</a>
  32      * <cite>http://tools.ietf.org/html/rfc4646</cite>.
  33      * @return list of language tag Strings,
  34      * or null if no header exists
  35      */
  36     public abstract List getContentLanguage();
  37
  38     /**
  39      * Gets any exception thrown during the parsing of {@link #getContentLanguage()}
  40      * @return <code>ParseException</code> when the content-language parse fails,
  41      * null otherwise
  42      */
  43     public abstract MimeException getContentLanguageParseException();
  44
  45 }