corda/classpath/java/lang/Enum.java
2007-11-14 09:32:36 -07:00

43 lines
921 B
Java

package java.lang;
import java.lang.reflect.Method;
public abstract class Enum<E extends Enum<E>> implements Comparable<E> {
private final String name;
private final int ordinal;
public Enum(String name, int ordinal) {
this.name = name;
this.ordinal = ordinal;
}
public int compareTo(E other) {
return ordinal - other.ordinal;
}
public static <T extends Enum<T>> T valueOf(Class<T> enumType, String name) {
if (name != null) {
try {
Method method = enumType.getMethod("values");
Enum values[] = (Enum[])(method.invoke(null));
for (Enum value : values) {
if (name.equals(value.name)) {
return (T) value;
}
}
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
return null;
}
public int ordinal() {
return ordinal;
}
public String toString() {
return name;
}
}