java/java-impl/src/com/intellij/psi/filters/classes/ClassAssignableToFilter.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.psi.filters.classes;
  17
  18 import com.intellij.psi.PsiElement;
  19 import com.intellij.psi.PsiClass;
  20 import com.intellij.psi.PsiManager;
  21 import com.intellij.psi.util.PsiUtil;
  22 import com.intellij.psi.util.InheritanceUtil;
  23
  24 /**
  25  * Created by IntelliJ IDEA.
  26  * User: ik
  27  * Date: 26.03.2003
  28  * Time: 21:02:40
  29  * To change this template use Options | File Templates.
  30  */
  31 public class ClassAssignableToFilter extends ClassAssignableFilter{
  32   public ClassAssignableToFilter(String className){
  33     myClassName = className;
  34   }
  35
  36   public ClassAssignableToFilter(PsiClass psiClass){
  37     myClass = psiClass;
  38   }
  39
  40   public ClassAssignableToFilter(){}
  41
  42   public boolean isAcceptable(Object aClass, PsiElement context){
  43     if(aClass instanceof PsiClass){
  44       PsiManager manager = ((PsiElement) aClass).getManager();
  45       final PsiClass psiClass = getPsiClass(manager, context.getResolveScope());
  46       return psiClass == aClass || ((PsiClass) aClass).isInheritor(psiClass, true);
  47     }
  48     return false;
  49   }
  50
  51   public String toString(){
  52     return "class-assignable-to(" + getPsiClass(null, null) + ")";
  53   }
  54 }