/* * Copyright 2000-2009 JetBrains s.r.o. * * Licensed 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 com.intellij.history.core.changes; public abstract class ChangeVisitor { public void finished() { } public void begin(ChangeSet c) throws StopVisitingException { } public void end(ChangeSet c) throws StopVisitingException { } public void visit(PutLabelChange c) throws StopVisitingException { } public void visit(StructuralChange c) throws StopVisitingException { } public void visit(CreateEntryChange c) throws StopVisitingException { visit((StructuralChange)c); } public void visit(ContentChange c) throws StopVisitingException { visit((StructuralChange)c); } public void visit(RenameChange c) throws StopVisitingException { visit((StructuralChange)c); } public void visit(ROStatusChange c) throws StopVisitingException { visit((StructuralChange)c); } public void visit(MoveChange c) throws StopVisitingException { visit((StructuralChange)c); } public void visit(DeleteChange c) throws StopVisitingException { visit((StructuralChange)c); } protected void stop() throws StopVisitingException { throw new StopVisitingException(); } public static class StopVisitingException extends Exception { } }