package com.planet_ink.coffee_mud.core.collections; import java.util.Collection; import java.util.Comparator; import java.util.Map; import java.util.Set; import java.util.SortedMap; import java.util.TreeMap; /* Copyright 2010-2019 Bo Zimmerman 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. */ public class ReadOnlySortedMap<K, V> implements SortedMap<K, V> { private final SortedMap<K, V> map; public ReadOnlySortedMap(final SortedMap<K, V> s) { map = s; } public ReadOnlySortedMap() { map = new TreeMap<K,V>(); } @Override public Comparator<? super K> comparator() { return map.comparator(); } @Override public Set<java.util.Map.Entry<K, V>> entrySet() { return new ReadOnlySet<java.util.Map.Entry<K, V>>(map.entrySet()); } @Override public K firstKey() { return map.firstKey(); } @Override public SortedMap<K, V> headMap(final K toKey) { return new ReadOnlySortedMap<K, V>(map.headMap(toKey)); } @Override public Set<K> keySet() { return new ReadOnlySet<K>(map.keySet()); } @Override public K lastKey() { return map.lastKey(); } @Override public SortedMap<K, V> subMap(final K fromKey, final K toKey) { return new ReadOnlySortedMap<K, V>(map.subMap(fromKey, toKey)); } @Override public SortedMap<K, V> tailMap(final K fromKey) { return new ReadOnlySortedMap<K, V>(map.tailMap(fromKey)); } @Override public Collection<V> values() { return new ReadOnlyCollection<V>(map.values()); } @Override public void clear() { throw new java.lang.IllegalArgumentException(); } @Override public boolean containsKey(final Object key) { return map.containsKey(key); } @Override public boolean containsValue(final Object value) { return map.containsValue(value); } @Override public V get(final Object key) { return map.get(key); } @Override public boolean isEmpty() { return map.isEmpty(); } @Override public V put(final K key, final V value) { throw new java.lang.IllegalArgumentException(); } @Override public void putAll(final Map<? extends K, ? extends V> m) { throw new java.lang.IllegalArgumentException(); } @Override public V remove(final Object key) { throw new java.lang.IllegalArgumentException(); } @Override public int size() { return map.size(); } }