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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright (C) 2008 The Guava Authors
 *
 * 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.common.collect;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;

import java.io.Serializable;
import java.util.Map.Entry;

import javax.annotation.Nullable;

/**
 * {@code keySet()} implementation for {@link ImmutableMap}.
 *
 * @author Jesse Wilson
 * @author Kevin Bourrillion
 */
@GwtCompatible(emulated = true)
final class ImmutableMapKeySet extends ImmutableSet {
  private final ImmutableMap map;

  ImmutableMapKeySet(ImmutableMap map) {
    this.map = map;
  }

  @Override
  public int size() {
    return map.size();
  }

  @Override
  public UnmodifiableIterator iterator() {
    return asList().iterator();
  }

  @Override
  public boolean contains(@Nullable Object object) {
    return map.containsKey(object);
  }

  @Override
  ImmutableList createAsList() {
    final ImmutableList> entryList = map.entrySet().asList();
    return new ImmutableAsList() {

      @Override
      public K get(int index) {
        return entryList.get(index).getKey();
      }

      @Override
      ImmutableCollection delegateCollection() {
        return ImmutableMapKeySet.this;
      }

    };
  }

  @Override
  boolean isPartialView() {
    return true;
  }

  @GwtIncompatible("serialization")
  @Override Object writeReplace() {
    return new KeySetSerializedForm(map);
  }

  @GwtIncompatible("serialization")
  private static class KeySetSerializedForm implements Serializable {
    final ImmutableMap map;
    KeySetSerializedForm(ImmutableMap map) {
      this.map = map;
    }
    Object readResolve() {
      return map.keySet();
    }
    private static final long serialVersionUID = 0;
  }
}