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Enumeration improved with Generics
Google is your friend, Wiki is your teacher is very true. I have been reading on the bus ride during the CNY trip and learnt some power concept for OOP in java especially the use of generics. Below is the code I improved on AbstractEnum class which will now be even more flexible than ever. public abstract class AbstractEnum<INPU T_TYPE>{ private final INPUT_TYPE k; private static int nextOrdinal = 0; private final int ordinal = nextOrdinal++; protected AbstractEnum(INPUT_T YPE k){ this.k = k; } public INPUT_TYPE getValue(){ return this.k; } public int getOrdinal(){ return this.ordinal; } //override equals method public boolean equals(Object o){ AbstractEnum objE = (AbstractEnum) o; return ( this.ordinal == objE.getOrdinal() ); } } Here's the implementation. Look much cleaner than before isn't it? public class DayImpl extends AbstractEnum<Stri ng>{ protected DayImpl(String name) { super(name); // TODO Auto-generated constructor stub } //creating your enum
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