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Update Enum classes to support hierarchy Enum definitions 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/lang/trunk@137247 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Stephen Colebourne 2003-02-04 18:30:08 +00:00
parent 2ddf33ffc3
commit 85cbed66ff
6 changed files with 480 additions and 23 deletions
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103
src/java/org/apache/commons/lang/enum/Enum.java
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@ -1,7 +1,7 @@
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* Copyright (c) 2002-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -74,7 +74,8 @@
* <em>NOTE:</em>Due to the way in which Java ClassLoaders work, comparing Enum objects
* should always be done using the equals() method, not ==. The equals() method will
* try == first so in most cases the effect is the same.
* <p>
*
* <h4>Simple Enums</h4>
* To use this class, it must be subclassed. For example:
*
* <pre>
@ -110,9 +111,51 @@
* The <code>getEnum</code> and <code>iterator</code> methods are recommended.
* Unfortunately, Java restrictions require these to be coded as shown in each subclass.
* An alternative choice is to use the {@link EnumUtils} class.
* <p>
*
* <h4>Subclassed Enums</h4>
* A hierarchy of Enum classes can be built. In this case, the superclass is
* unaffected by the addition of subclasses (as per normal Java). The subclasses
* may add additional Enum constants <i>of the type of the superclass</i>. The
* query methods on the subclass will return all of the Enum constants from the
* superclass and subclass.
*
* <pre>
* public class ExtraColorEnum extends ColorEnum {
* // NOTE: Color enum declared above is final, change that to get this
* // example to compile.
* public static final ColorEnum YELLOW = new ExtraColorEnum("Yellow");
*
* private ExtraColorEnum(String color) {
* super(color);
* }
*
* public static ColorEnum getEnum(String color) {
* return (ColorEnum) getEnum(ExtraColorEnum.class, color);
* }
*
* public static Map getEnumMap() {
* return getEnumMap(ExtraColorEnum.class);
* }
*
* public static List getEnumList() {
* return getEnumList(ExtraColorEnum.class);
* }
*
* public static Iterator iterator() {
* return iterator(ExtraColorEnum.class);
* }
* }
* </pre>
*
* This example will return RED, GREEN, BLUE, YELLOW from the List and iterator
* methods in that order. The RED, GREEN and BLUE instances will be the same (==)
* as those from the superclass ColorEnum. Note that YELLOW is declared as a
* ColorEnum and not an ExtraColorEnum.
*
* <h4>Functional Enums</h4>
* The enums can have functionality by using anonymous inner classes
* [Effective Java, Bloch01]:
*
* <pre>
* public abstract class OperationEnum extends Enum {
* public static final OperationEnum PLUS = new OperationEnum("Plus") {
@ -156,7 +199,7 @@
* @author Stephen Colebourne
* @author Chris Webb
* @since 1.0
* @version $Id: Enum.java,v 1.7 2003/02/04 16:56:08 scolebourne Exp $
* @version $Id: Enum.java,v 1.8 2003/02/04 18:30:07 scolebourne Exp $
*/
public abstract class Enum implements Comparable, Serializable {
/**
@ -200,11 +243,11 @@ protected Enum(String name) {
throw new IllegalArgumentException("The Enum name must not be empty");
}
iName = name;
String className = Enum.getEnumClassName(getClass());
Entry entry = (Entry) cEnumClasses.get(className);
Class enumClass = Enum.getEnumClass(getClass());
Entry entry = (Entry) cEnumClasses.get(enumClass);
if (entry == null) {
entry = new Entry();
cEnumClasses.put(className, entry);
entry = createEntry(getClass());
cEnumClasses.put(enumClass, entry);
}
if (entry.map.containsKey(name)) {
throw new IllegalArgumentException("The Enum name must be unique, '" + name + "' has already been added");
@ -219,7 +262,7 @@ protected Enum(String name) {
* @return the resolved object
*/
protected Object readResolve() {
Entry entry = (Entry) cEnumClasses.get(Enum.getEnumClassName(getClass()));
Entry entry = (Entry) cEnumClasses.get(Enum.getEnumClass(getClass()));
if (entry == null) {
return null;
}
@ -293,6 +336,7 @@ protected static Iterator iterator(Class enumClass) {
return Enum.getEnumList(enumClass).iterator();
}
//-----------------------------------------------------------------------
/**
* Gets an entry from the map of Enums.
*
@ -306,17 +350,40 @@ private static Entry getEntry(Class enumClass) {
if (Enum.class.isAssignableFrom(enumClass) == false) {
throw new IllegalArgumentException("The Class must be a subclass of Enum");
}
Entry entry = (Entry) cEnumClasses.get(enumClass.getName());
Entry entry = (Entry) cEnumClasses.get(enumClass);
return entry;
}
/**
* Convert a class to a class name accounting for inner classes.
* Creates an entry for storing the Enums.
* This accounts for subclassed Enums.
*
* @param enumClass the class of the Enum to get
* @return the enum entry
*/
private static Entry createEntry(Class enumClass) {
Entry entry = new Entry();
Class cls = enumClass.getSuperclass();
while (cls != null && cls != Enum.class && cls != ValuedEnum.class) {
Entry loopEntry = (Entry) cEnumClasses.get(cls);
if (loopEntry != null) {
entry.list.addAll(loopEntry.list);
entry.map.putAll(loopEntry.map);
break; // stop here, as this will already have had superclasses added
}
cls = cls.getSuperclass();
}
return entry;
}
/**
* Convert a class to the actual common enum class.
* This accounts for anonymous inner classes.
*
* @param cls the class to get the name for
* @return the class name
*/
protected static String getEnumClassName(Class cls) {
protected static Class getEnumClass(Class cls) {
String className = cls.getName();
int index = className.lastIndexOf('$');
if (index > -1) {
@ -325,15 +392,13 @@ protected static String getEnumClassName(Class cls) {
if (inner.length() > 0 &&
inner.charAt(0) >= '0' &&
inner.charAt(0) < '9') {
// Strip off anonymous inner class reference.
className = className.substring(0, index);
return cls.getSuperclass();
}
}
return className;
return cls;
}
//--------------------------------------------------------------------------------
//-----------------------------------------------------------------------
/**
* Retrieve the name of this Enum item, set in the constructor.
*
@ -359,7 +424,7 @@ public final boolean equals(Object other) {
} else if (other.getClass() == this.getClass()) {
// shouldn't happen, but...
return iName.equals(((Enum) other).iName);
} else if (other.getClass().getName().equals(this.getClass().getName())) {
} else if (getEnumClass(other.getClass()).getName().equals(getEnumClass(this.getClass()).getName())) {
// different classloaders
try {
// try to avoid reflection
@ -416,7 +481,7 @@ public int compareTo(Object other) {
* the type name.
*/
public String toString() {
String shortName = Enum.getEnumClassName(getClass());
String shortName = Enum.getEnumClass(getClass()).getName();
int pos = shortName.lastIndexOf('.');
if (pos != -1) {
shortName = shortName.substring(pos + 1);

7
src/java/org/apache/commons/lang/enum/ValuedEnum.java
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@ -1,7 +1,7 @@
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* Copyright (c) 2002-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -130,7 +130,7 @@
*
* @author Stephen Colebourne
* @since 1.0
* @version $Id: ValuedEnum.java,v 1.4 2002/12/31 22:39:39 scolebourne Exp $
* @version $Id: ValuedEnum.java,v 1.5 2003/02/04 18:30:07 scolebourne Exp $
*/
public abstract class ValuedEnum extends Enum {
/**
@ -204,11 +204,12 @@ public int compareTo(Object other) {
* stripped from the type name.
*/
public String toString() {
String shortName = Enum.getEnumClassName(getClass());
String shortName = Enum.getEnumClass(getClass()).getName();
int pos = shortName.lastIndexOf('.');
if (pos != -1) {
shortName = shortName.substring(pos + 1);
}
shortName = shortName.replace('$', '.');
return shortName + "[" + getName() + "=" + getValue() + "]";
}
}

127
src/test/org/apache/commons/lang/enum/EnumTest.java
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@ -66,7 +66,7 @@
* Test cases for the {@link Enum} class.
*
* @author Stephen Colebourne
* @version $Id: EnumTest.java,v 1.5 2002/12/31 22:39:39 scolebourne Exp $
* @version $Id: EnumTest.java,v 1.6 2003/02/04 18:30:08 scolebourne Exp $
*/
public final class EnumTest extends TestCase {
@ -223,5 +223,130 @@ public void testOperationCalculation() {
assertEquals(3, OperationEnum.PLUS.eval(1, 2));
assertEquals(-1, OperationEnum.MINUS.eval(1, 2));
}
//-----------------------------------------------------------------------
public void testExtended1Get() {
assertSame(Extended1Enum.ALPHA, Extended1Enum.getEnum("Alpha"));
assertSame(Extended1Enum.BETA, Extended1Enum.getEnum("Beta"));
assertSame(null, Extended1Enum.getEnum("Gamma"));
assertSame(null, Extended1Enum.getEnum("Delta"));
}
public void testExtended2Get() {
assertSame(Extended1Enum.ALPHA, Extended2Enum.ALPHA);
assertSame(Extended1Enum.BETA, Extended2Enum.BETA);
assertSame(Extended2Enum.ALPHA, Extended2Enum.getEnum("Alpha"));
assertSame(Extended2Enum.BETA, Extended2Enum.getEnum("Beta"));
assertSame(Extended2Enum.GAMMA, Extended2Enum.getEnum("Gamma"));
assertSame(null, Extended2Enum.getEnum("Delta"));
}
public void testExtended3Get() {
assertSame(Extended2Enum.ALPHA, Extended3Enum.ALPHA);
assertSame(Extended2Enum.BETA, Extended3Enum.BETA);
assertSame(Extended2Enum.GAMMA, Extended3Enum.GAMMA);
assertSame(Extended3Enum.ALPHA, Extended3Enum.getEnum("Alpha"));
assertSame(Extended3Enum.BETA, Extended3Enum.getEnum("Beta"));
assertSame(Extended3Enum.GAMMA, Extended3Enum.getEnum("Gamma"));
assertSame(Extended3Enum.DELTA, Extended3Enum.getEnum("Delta"));
}
public void testExtendedSerialization() {
assertSame(Extended1Enum.ALPHA, SerializationUtils.clone(Extended1Enum.ALPHA));
assertSame(Extended1Enum.BETA, SerializationUtils.clone(Extended1Enum.BETA));
assertSame(Extended2Enum.GAMMA, SerializationUtils.clone(Extended2Enum.GAMMA));
assertSame(Extended3Enum.DELTA, SerializationUtils.clone(Extended3Enum.DELTA));
}
public void testExtendedToString() {
assertEquals("Extended1Enum[Alpha]", Extended1Enum.ALPHA.toString());
assertEquals("Extended1Enum[Beta]", Extended1Enum.BETA.toString());
assertEquals("Extended1Enum[Alpha]", Extended2Enum.ALPHA.toString());
assertEquals("Extended1Enum[Beta]", Extended2Enum.BETA.toString());
assertEquals("Extended2Enum[Gamma]", Extended2Enum.GAMMA.toString());
assertEquals("Extended1Enum[Alpha]", Extended3Enum.ALPHA.toString());
assertEquals("Extended1Enum[Beta]", Extended3Enum.BETA.toString());
assertEquals("Extended2Enum[Gamma]", Extended3Enum.GAMMA.toString());
assertEquals("Extended3Enum[Delta]", Extended3Enum.DELTA.toString());
}
public void testExtended1List() {
List list = Extended1Enum.getEnumList();
assertNotNull(list);
assertEquals(2, list.size());
assertEquals(list.size(), Extended1Enum.getEnumMap().keySet().size());
Iterator it = list.iterator();
assertSame(Extended1Enum.ALPHA, it.next());
assertSame(Extended1Enum.BETA, it.next());
}
public void testExtended2List() {
List list = Extended2Enum.getEnumList();
assertNotNull(list);
assertEquals(3, list.size());
assertEquals(list.size(), Extended2Enum.getEnumMap().keySet().size());
Iterator it = list.iterator();
assertSame(Extended2Enum.ALPHA, it.next());
assertSame(Extended2Enum.BETA, it.next());
assertSame(Extended2Enum.GAMMA, it.next());
}
public void testExtended3List() {
List list = Extended3Enum.getEnumList();
assertNotNull(list);
assertEquals(4, list.size());
assertEquals(list.size(), Extended3Enum.getEnumMap().keySet().size());
Iterator it = list.iterator();
assertSame(Extended3Enum.ALPHA, it.next());
assertSame(Extended3Enum.BETA, it.next());
assertSame(Extended3Enum.GAMMA, it.next());
assertSame(Extended3Enum.DELTA, it.next());
}
public void testExtended1Map() {
Map map = Extended1Enum.getEnumMap();
assertNotNull(map);
assertEquals(map.keySet().size(), Extended1Enum.getEnumList().size());
assertTrue(map.containsValue(Extended1Enum.ALPHA));
assertTrue(map.containsValue(Extended1Enum.BETA));
assertSame(Extended1Enum.ALPHA, map.get("Alpha"));
assertSame(Extended1Enum.BETA, map.get("Beta"));
}
public void testExtended2Map() {
Map map = Extended2Enum.getEnumMap();
assertNotNull(map);
assertEquals(map.keySet().size(), Extended2Enum.getEnumList().size());
assertTrue(map.containsValue(Extended2Enum.ALPHA));
assertTrue(map.containsValue(Extended2Enum.BETA));
assertTrue(map.containsValue(Extended2Enum.GAMMA));
assertSame(Extended2Enum.ALPHA, map.get("Alpha"));
assertSame(Extended2Enum.BETA, map.get("Beta"));
assertSame(Extended2Enum.GAMMA, map.get("Gamma"));
}
public void testExtended3Map() {
Map map = Extended3Enum.getEnumMap();
assertNotNull(map);
assertEquals(map.keySet().size(), Extended3Enum.getEnumList().size());
assertTrue(map.containsValue(Extended3Enum.ALPHA));
assertTrue(map.containsValue(Extended3Enum.BETA));
assertTrue(map.containsValue(Extended3Enum.GAMMA));
assertTrue(map.containsValue(Extended3Enum.DELTA));
assertSame(Extended3Enum.ALPHA, map.get("Alpha"));
assertSame(Extended3Enum.BETA, map.get("Beta"));
assertSame(Extended3Enum.GAMMA, map.get("Gamma"));
assertSame(Extended3Enum.DELTA, map.get("Delta"));
}
}

89
src/test/org/apache/commons/lang/enum/Extended1Enum.java Normal file
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@ -0,0 +1,89 @@
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.commons.lang.enum;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* Base extended enumeration.
*
* @author Stephen Colebourne
* @version $Id: Extended1Enum.java,v 1.1 2003/02/04 18:30:08 scolebourne Exp $
*/
public class Extended1Enum extends Enum {
public static final Extended1Enum ALPHA = new Extended1Enum("Alpha");
public static final Extended1Enum BETA = new Extended1Enum("Beta");
protected Extended1Enum(String name) {
super(name);
}
public static Extended1Enum getEnum(String name) {
return (Extended1Enum) getEnum(Extended1Enum.class, name);
}
public static Map getEnumMap() {
return getEnumMap(Extended1Enum.class);
}
public static List getEnumList() {
return getEnumList(Extended1Enum.class);
}
public static Iterator iterator() {
return iterator(Extended1Enum.class);
}
}

88
src/test/org/apache/commons/lang/enum/Extended2Enum.java Normal file
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@ -0,0 +1,88 @@
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.commons.lang.enum;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* Extended enumeration.
*
* @author Stephen Colebourne
* @version $Id: Extended2Enum.java,v 1.1 2003/02/04 18:30:08 scolebourne Exp $
*/
public class Extended2Enum extends Extended1Enum {
public static final Extended1Enum GAMMA = new Extended2Enum("Gamma");
protected Extended2Enum(String color) {
super(color);
}
public static Extended1Enum getEnum(String name) {
return (Extended1Enum) getEnum(Extended2Enum.class, name);
}
public static Map getEnumMap() {
return getEnumMap(Extended2Enum.class);
}
public static List getEnumList() {
return getEnumList(Extended2Enum.class);
}
public static Iterator iterator() {
return iterator(Extended2Enum.class);
}
}

89
src/test/org/apache/commons/lang/enum/Extended3Enum.java Normal file
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@ -0,0 +1,89 @@
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.commons.lang.enum;
import java.util.Map;
import java.util.List;
import java.lang.String;
import java.util.Iterator;
/**
* Extended enumeration.
*
* @author Stephen Colebourne
* @version $Id: Extended3Enum.java,v 1.1 2003/02/04 18:30:08 scolebourne Exp $
*/
public class Extended3Enum extends Extended2Enum {
public static final Extended1Enum DELTA = new Extended3Enum("Delta");
protected Extended3Enum(String name) {
super(name);
}
public static Extended1Enum getEnum(String name) {
return (Extended1Enum) Enum.getEnum(Extended3Enum.class, name);
}
public static Map getEnumMap() {
return Enum.getEnumMap(Extended3Enum.class);
}
public static List getEnumList() {
return Enum.getEnumList(Extended3Enum.class);
}
public static Iterator iterator() {
return Enum.iterator(Extended3Enum.class);
}
}