Initial Jack import.

Change-Id: I953cf0a520195a7187d791b2885848ad0d5a9b43

1 files changed, 132 insertions, 0 deletions

diff --git a/guava/src/com/google/common/collect/AbstractSetMultimap.java b/guava/src/com/google/common/collect/AbstractSetMultimap.java
new file mode 100644
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+++ b/guava/src/com/google/common/collect/AbstractSetMultimap.java
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+/*
+ * Copyright (C) 2007 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 java.util.Collection;
+import java.util.Map;
+import java.util.Set;
+
+import javax.annotation.Nullable;
+
+/**
+ * Basic implementation of the {@link SetMultimap} interface. It's a wrapper
+ * around {@link AbstractMultimap} that converts the returned collections into
+ * {@code Sets}. The {@link #createCollection} method must return a {@code Set}.
+ *
+ * @author Jared Levy
+ */
+@GwtCompatible
+abstract class AbstractSetMultimap<K, V>
+    extends AbstractMultimap<K, V> implements SetMultimap<K, V> {
+  /**
+   * Creates a new multimap that uses the provided map.
+   *
+   * @param map place to store the mapping from each key to its corresponding
+   *     values
+   */
+  protected AbstractSetMultimap(Map<K, Collection<V>> map) {
+    super(map);
+  }
+
+  @Override abstract Set<V> createCollection();
+
+  // Following Javadoc copied from SetMultimap.
+
+  /**
+   * {@inheritDoc}
+   *
+   * <p>Because a {@code SetMultimap} has unique values for a given key, this
+   * method returns a {@link Set}, instead of the {@link Collection} specified
+   * in the {@link Multimap} interface.
+   */
+  @Override public Set<V> get(@Nullable K key) {
+    return (Set<V>) super.get(key);
+  }
+
+  /**
+   * {@inheritDoc}
+   *
+   * <p>Because a {@code SetMultimap} has unique values for a given key, this
+   * method returns a {@link Set}, instead of the {@link Collection} specified
+   * in the {@link Multimap} interface.
+   */
+  @Override public Set<Map.Entry<K, V>> entries() {
+    return (Set<Map.Entry<K, V>>) super.entries();
+  }
+
+  /**
+   * {@inheritDoc}
+   *
+   * <p>Because a {@code SetMultimap} has unique values for a given key, this
+   * method returns a {@link Set}, instead of the {@link Collection} specified
+   * in the {@link Multimap} interface.
+   */
+  @Override public Set<V> removeAll(@Nullable Object key) {
+    return (Set<V>) super.removeAll(key);
+  }
+
+  /**
+   * {@inheritDoc}
+   *
+   * <p>Because a {@code SetMultimap} has unique values for a given key, this
+   * method returns a {@link Set}, instead of the {@link Collection} specified
+   * in the {@link Multimap} interface.
+   *
+   * <p>Any duplicates in {@code values} will be stored in the multimap once.
+   */
+  @Override public Set<V> replaceValues(
+      @Nullable K key, Iterable<? extends V> values) {
+    return (Set<V>) super.replaceValues(key, values);
+  }
+
+  /**
+   * {@inheritDoc}
+   *
+   * <p>Though the method signature doesn't say so explicitly, the returned map
+   * has {@link Set} values.
+   */
+  @Override public Map<K, Collection<V>> asMap() {
+    return super.asMap();
+  }
+
+  /**
+   * Stores a key-value pair in the multimap.
+   *
+   * @param key key to store in the multimap
+   * @param value value to store in the multimap
+   * @return {@code true} if the method increased the size of the multimap, or
+   *     {@code false} if the multimap already contained the key-value pair
+   */
+  @Override public boolean put(K key, V value) {
+    return super.put(key, value);
+  }
+
+  /**
+   * Compares the specified object to this multimap for equality.
+   *
+   * <p>Two {@code SetMultimap} instances are equal if, for each key, they
+   * contain the same values. Equality does not depend on the ordering of keys
+   * or values.
+   */
+  @Override public boolean equals(@Nullable Object object) {
+    return super.equals(object);
+  }
+
+  private static final long serialVersionUID = 7431625294878419160L;
+}