- /*
- * Copyright 2003-2004 The Apache Software Foundation
- *
- * 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 org.apache.commons.collections.keyvalue;
-
- import java.util.Map;
-
- import org.apache.commons.collections.KeyValue;
- import org.apache.commons.collections.Unmodifiable;
-
- /**
- * A {@link java.util.Map.Entry} that throws UnsupportedOperationException
- * when <code>setValue</code> is called.
- *
- * @since Commons Collections 3.0
- * @version $Revision: 1.3 $ $Date: 2004/02/18 01:00:08 $
- *
- * @author Stephen Colebourne
- */
- public final class UnmodifiableMapEntry extends AbstractMapEntry implements Unmodifiable {
-
- /**
- * Constructs a new entry with the specified key and given value.
- *
- * @param key the key for the entry, may be null
- * @param value the value for the entry, may be null
- */
- public UnmodifiableMapEntry(final Object key, final Object value) {
- super(key, value);
- }
-
- /**
- * Constructs a new entry from the specified KeyValue.
- *
- * @param pair the pair to copy, must not be null
- * @throws NullPointerException if the entry is null
- */
- public UnmodifiableMapEntry(final KeyValue pair) {
- super(pair.getKey(), pair.getValue());
- }
-
- /**
- * Constructs a new entry from the specified MapEntry.
- *
- * @param entry the entry to copy, must not be null
- * @throws NullPointerException if the entry is null
- */
- public UnmodifiableMapEntry(final Map.Entry entry) {
- super(entry.getKey(), entry.getValue());
- }
-
- /**
- * Throws UnsupportedOperationException.
- *
- * @param value the new value
- * @return the previous value
- * @throws UnsupportedOperationException always
- */
- public Object setValue(Object value) {
- throw new UnsupportedOperationException("setValue() is not supported");
- }
-
- }