+++ /dev/null
-/*
-* Copyright (c) 2003, the JUNG Project and the Regents of the University
-* of California
-* All rights reserved.
-*
-* This software is open-source under the BSD license; see either
-* "license.txt" or
-* http://jung.sourceforge.net/license.txt for a description.
-*/
-
-package edu.uci.ics.jung.algorithms.util;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Map;
-import java.util.Set;
-
-/**
- * An implementation of <code>Map</code> that returns the constructor-supplied
- * value for any input.
- *
- * @param <K> the key type
- * @param <V> the value type
- */
-public class ConstantMap<K,V> implements Map<K,V> {
-
- private Map<K,V> delegate;
-
- /**
- * Creates an instance whose {@code get} method always returns {@code value}.
- */
- public ConstantMap(V value) {
- delegate = Collections.<K,V>unmodifiableMap(Collections.<K,V>singletonMap(null, value));
- }
-
- public V get(Object key) {
- return delegate.get(null);
- }
-
- public void clear() {
- delegate.clear();
- }
-
- public boolean containsKey(Object key) {
- return true;
- }
-
- public boolean containsValue(Object value) {
- return delegate.containsValue(value);
- }
-
- public Set<Entry<K, V>> entrySet() {
- return delegate.entrySet();
- }
-
- @Override
- public boolean equals(Object o) {
- return delegate.equals(o);
- }
-
- @Override
- public int hashCode() {
- return delegate.hashCode();
- }
-
- public boolean isEmpty() {
- return delegate.isEmpty();
- }
-
- public Set<K> keySet() {
- return delegate.keySet();
- }
-
- public V put(K key, V value) {
- return delegate.put(key, value);
- }
-
- public void putAll(Map<? extends K, ? extends V> t) {
- delegate.putAll(t);
- }
-
- public V remove(Object key) {
- return delegate.remove(key);
- }
-
- public int size() {
- return delegate.size();
- }
-
- public Collection<V> values() {
- return delegate.values();
- }
-}
\ No newline at end of file