content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * 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.android.ahat.heapdump;
  
  /**
   * Generic PlaceHolder instance to take the place of a real AhatInstance for
   * the purposes of displaying diffs.
   *
   * This should be created through a call to AhatInstance.newPlaceHolder();
   */
  public class AhatPlaceHolderInstance extends AhatInstance {
    AhatPlaceHolderInstance(AhatInstance baseline) {
      super(-1);
      setBaseline(baseline);
      baseline.setBaseline(this);
    }
  
    @Override public long getSize() {
      return 0;
    }
  
    @Override public long getRetainedSize(AhatHeap heap) {
      return 0;
    }
  
    @Override public long getTotalRetainedSize() {
      return 0;
    }
  
    @Override public AhatHeap getHeap() {
      return getBaseline().getHeap().getBaseline();
    }
  
    @Override public String getClassName() {
      return getBaseline().getClassName();
    }
  
    @Override public String asString(int maxChars) {
      return getBaseline().asString(maxChars);
    }
  
    @Override public String toString() {
      return getBaseline().toString();
    }
  
    @Override public boolean isPlaceHolder() {
      return true;
    }
  }
  