| /* |
| * 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. |
| */ |
| package org.apache.jackrabbit.oak.plugins.observation; |
| |
| import org.apache.jackrabbit.oak.spi.commit.CommitInfo; |
| import org.apache.jackrabbit.oak.spi.state.NodeState; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * A FilteringAwareObserver is the stateless-variant of |
| * an Observer which gets an explicit before as well as the |
| * after NodeState. |
| * <p> |
| * It is used by the FilteringObserver (or more precisely |
| * by the FilteringDispatcher) to support skipping (ie filtering) |
| * of content changes. |
| */ |
| public interface FilteringAwareObserver { |
| |
| /** |
| * Equivalent to the state-full contentChanged() method of the Observer |
| * with one important difference being that this variation explicitly |
| * passes the before NodeState (thus the observer must in this case |
| * not remember the previous state) |
| * @param before the before NodeState |
| * @param after the after NodeState |
| * @param info the associated CommitInfo |
| */ |
| void contentChanged(@NotNull NodeState before, @NotNull NodeState after, @NotNull CommitInfo info); |
| |
| } |