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.chemistry.opencmis.commons.data; 20 21 import java.io.Serializable; 22 import java.util.List; 23 import java.util.Map; 24 25 /** 26 * This class represents one node in the extension tree. 27 */ 28 public interface CmisExtensionElement extends Serializable { 29 30 /** 31 * Returns the name of the extension. The name is never <code>null</code>. 32 */ 33 String getName(); 34 35 /** 36 * Returns the namespace of the extension. If the binding doesn't support 37 * namespaces this method will return <code>null</code>. 38 * 39 * Don't rely on namespaces because they are binding specific! 40 */ 41 String getNamespace(); 42 43 /** 44 * Returns the value of the extension as a String. If this extension has 45 * children than this method returns <code>null</code>. 46 */ 47 String getValue(); 48 49 /** 50 * Returns the attributes of the extension. If the binding doesn't support 51 * attributes this method will return <code>null</code>. 52 * 53 * Try to avoid attributes because they are binding specific! 54 */ 55 Map<String, String> getAttributes(); 56 57 /** 58 * Returns the children of this extension. 59 */ 60 List<CmisExtensionElement> getChildren(); 61 }