com.foreach.common.spring.enums

Interface IdLookup<I>

public interface IdLookup<I>

IdLookup is an interface to facilitate finding elements in small sets of enumerated Objects, usually a java Enum.

getId returns a value that can be used to retrieve the Object. The actual lookup is not part of this interface, because it will be in most cases implemented by either a static method or a service.

In order for this interface to be of use, getId must return unique codes across all instances of a given implementation, so when

  class Foo implements IdLookup<Integer>
 

then if

     foo1.getId().equals(foo2.getId())
 

is true, so should.

     foo1.equals(foo2)
 

Typical usecases are web requests or database persistence.

Method Summary

Modifier and Type	Method and Description
I	getId() Returns the unique id of type <I> for this instance.

Method Detail

getId

I getId()

Returns the unique id of type <I> for this instance.