| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * This package contains the delegates for the various JCR API entities. |
| * While the JCR API implementation classes directly implement the client |
| * facing JCR API, they do so without implementing much of the business |
| * logic themselves but rather rely on the functionality provided by the |
| * delegates. This separation of the JCR functionality into external and |
| * internal variants guarantees that JCR API consumers cannot gain access |
| * to internals by simply casting to an implementation class. Further it |
| * makes internal round-tripping through the JCR API unnecessary since |
| * all functionality is provided by the internal interface (i.e. delegates), |
| * which simplifies maintaining and checking state invariants.<p> |
| * |
| * <b>Responsibilities of JCR API implementation classes:</b> |
| * <ul> |
| * <li>Prevent access to internals.</li> |
| * <li>Name/path mapping for both method arguments and return values.</li> |
| * <li>Tracking and instantiation of other JCR implementation objects.</li> |
| * <li>Conversion from JCR Values to PropertyState instances and vice versa.</li> |
| * <li>No direct access to the Oak API</li> |
| * </ul> |
| * |
| * <b>Responsibilities of the delegate classes:</b> |
| * <ul> |
| * <li>Business logic associated with complex JCR operations.</li> |
| * <li>Provide means for state invariant checking.</li> |
| * <li>Must no refer to neither the JCR API nor its implementation classes.</li> |
| * </ul> |
| */ |
| package org.apache.jackrabbit.oak.jcr.delegate; |
| |
