/*
* Copyright 2002-2007 the original author or authors.
*
* 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.springframework.core.enums;
/**
* Abstract base superclass for LabeledEnum implementations.
*
* @author Keith Donald
* @author Juergen Hoeller
* @author Sam Brannen
* @since 1.2.2
*/
public abstract class AbstractLabeledEnum implements LabeledEnum {
/**
* Create a new AbstractLabeledEnum instance.
*/
protected AbstractLabeledEnum() {
}
public Class getType() {
// Could be coded as getClass().isAnonymousClass() on JDK 1.5
boolean isAnonymous = (getClass().getDeclaringClass() == null && getClass().getName().indexOf('$') != -1);
return (isAnonymous ? getClass().getSuperclass() : getClass());
}
public int compareTo(Object obj) {
if (!(obj instanceof LabeledEnum)) {
throw new ClassCastException("You may only compare LabeledEnums");
}
LabeledEnum that = (LabeledEnum) obj;
if (!this.getType().equals(that.getType())) {
throw new ClassCastException("You may only compare LabeledEnums of the same type");
}
return this.getCode().compareTo(that.getCode());
}
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof LabeledEnum)) {
return false;
}
LabeledEnum other = (LabeledEnum) obj;
return (this.getType().equals(other.getType()) && this.getCode().equals(other.getCode()));
}
public int hashCode() {
return (getType().hashCode() * 29 + getCode().hashCode());
}
public String toString() {
return getLabel();
}
}