Java tutorial
/** * Copyright 2005-2014 The Kuali Foundation * * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php * * 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.kuali.rice.core.api.util; import org.apache.commons.lang.builder.CompareToBuilder; import org.apache.commons.lang.builder.EqualsBuilder; import org.apache.commons.lang.builder.HashCodeBuilder; import org.apache.commons.lang.builder.ToStringBuilder; import java.util.Map; /** * A mutable, comparable key value pair of Strings. * * This class is not meant to be extended. * * For extension see AbstractKeyValue & KeyValue. * * @author Kuali Rice Team (rice.collab@kuali.org) */ public final class ConcreteKeyValue extends AbstractKeyValue implements Comparable<KeyValue> { private static final long serialVersionUID = 1176799455504861488L; public ConcreteKeyValue() { super(); } public ConcreteKeyValue(String key, String value) { super(key, value); } public ConcreteKeyValue(KeyValue keyValue) { super(keyValue); } public ConcreteKeyValue(Map.Entry<String, String> entry) { super(entry); } public void setKey(String key) { this.key = key; } public void setValue(String value) { this.value = value; } @Override public int compareTo(KeyValue o) { if (o == null) { throw new NullPointerException("o is null"); } return new CompareToBuilder().append(this.getValue(), o.getValue(), String.CASE_INSENSITIVE_ORDER) .append(this.getKey(), o.getKey(), String.CASE_INSENSITIVE_ORDER).toComparison(); } @Override public int hashCode() { return HashCodeBuilder.reflectionHashCode(this); } @Override public boolean equals(Object obj) { return EqualsBuilder.reflectionEquals(obj, this); } @Override public String toString() { return ToStringBuilder.reflectionToString(this); } }