src/com/google/enterprise/adaptor/FakeMap.java

// Copyright 2012 Google Inc. All Rights Reserved.
//
// 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.google.enterprise.adaptor;

import java.util.AbstractMap;
import java.util.Collections;
import java.util.Map;
import java.util.Set;

/**
 * Fake modifiable map that doesn't store anything.
 */
class FakeMap<K, V> extends AbstractMap<K, V> {
  @Override
  public Set<Map.Entry<K, V>> entrySet() {
    return Collections.emptySet();
  }

  @Override
  public V put(K key, V value) {
    return null;
  }
}