| /* |
| * 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.pom.impl; |
| |
| import com.intellij.pom.PomManager; |
| import com.intellij.pom.PomModelAspect; |
| import com.intellij.pom.PomTransaction; |
| import com.intellij.pom.event.PomModelEvent; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.Nullable; |
| |
| public abstract class PomTransactionBase implements PomTransaction{ |
| private final PsiElement myScope; |
| private final PomModelAspect myAspect; |
| private final PomModelEvent myAccumulatedEvent; |
| public PomTransactionBase(PsiElement scope, final PomModelAspect aspect){ |
| myScope = scope; |
| myAspect = aspect; |
| myAccumulatedEvent = new PomModelEvent(PomManager.getModel(scope.getProject())); |
| } |
| |
| @Override |
| public PomModelEvent getAccumulatedEvent() { |
| return myAccumulatedEvent; |
| } |
| |
| @Override |
| public void run() throws IncorrectOperationException { |
| // override accumulated event because transaction should construct full model event in its aspect |
| final PomModelEvent event = runInner(); |
| if(event == null){ |
| // in case of null event aspect change set supposed to be rebuild by low level events |
| myAccumulatedEvent.registerChangeSet(myAspect, null); |
| return; |
| } |
| myAccumulatedEvent.merge(event); |
| } |
| |
| @Nullable |
| public abstract PomModelEvent runInner() throws IncorrectOperationException; |
| |
| @Override |
| public PsiElement getChangeScope() { |
| return myScope; |
| } |
| |
| @Override |
| public PomModelAspect getTransactionAspect() { |
| return myAspect; |
| } |
| } |