- /*
- * 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 org.apache.commons.collections.KeyValue;
-
- /**
- * Abstract pair class to assist with creating KeyValue and MapEntry implementations.
- *
- * @since Commons Collections 3.0
- * @version $Revision: 1.3 $ $Date: 2004/02/18 01:00:08 $
- *
- * @author James Strachan
- * @author Michael A. Smith
- * @author Neil O'Toole
- * @author Stephen Colebourne
- */
- public abstract class AbstractKeyValue implements KeyValue {
-
- /** The key */
- protected Object key;
- /** The value */
- protected Object value;
-
- /**
- * Constructs a new pair 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
- */
- protected AbstractKeyValue(Object key, Object value) {
- super();
- this.key = key;
- this.value = value;
- }
-
- /**
- * Gets the key from the pair.
- *
- * @return the key
- */
- public Object getKey() {
- return key;
- }
-
- /**
- * Gets the value from the pair.
- *
- * @return the value
- */
- public Object getValue() {
- return value;
- }
-
- /**
- * Gets a debugging String view of the pair.
- *
- * @return a String view of the entry
- */
- public String toString() {
- return new StringBuffer()
- .append(getKey())
- .append('=')
- .append(getValue())
- .toString();
- }
-
- }