platform/core-impl/src/com/intellij/psi/filters/NotFilter.java

/*
 * 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.psi.filters;

import com.intellij.psi.PsiElement;

/**
 * Created by IntelliJ IDEA.
 * User: ik
 * Date: 28.01.2003
 * Time: 19:24:33
 * To change this template use Options | File Templates.
 */
public class NotFilter
 implements ElementFilter{
  ElementFilter myFilter;

  public NotFilter(){}

  public NotFilter(ElementFilter filter){
    myFilter = filter;
  }

  public void setFilter(ElementFilter filter){
    myFilter = filter;
  }

  public ElementFilter getFilter(){
    return myFilter;
  }

  @Override
  public boolean isClassAcceptable(Class hintClass){
    return myFilter.isClassAcceptable(hintClass);
  }

  @Override
  public boolean isAcceptable(Object element, PsiElement context){
    return !myFilter.isAcceptable(element, context);
  }


  public String toString(){
    return "!" + getFilter();
  }

}