org.nakedobjects.applib.spec
Class SpecificationAnd

java.lang.Object
  org.nakedobjects.applib.spec.SpecificationAnd

All Implemented Interfaces:

Specification

public abstract class SpecificationAnd
extends java.lang.Object
implements Specification

Adapter to make it easy to perform boolean algebra on Specifications.

Subclasses represent the intersection of multiple Specifications. An implementation should instantiate the Specifications to be satisfied in its constructor.

For example:

 public class MilkAndSugarSpec extends SpecificationAnd {
     public MilkAndSugarSpec() {
         super(
             new MustBeMilkySpec(), 
             new TwoLumpsOfSugarSpec()
         );
     }
 }
 

See Also:

SpecificationOr, SpecificationNot

Constructor Summary

SpecificationAnd(Specification... specifications)

Method Summary

java.lang.String

satisfies(java.lang.Object obj) If null then satisfied, otherwise is reason why the specification is not satisfied.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SpecificationAnd

public SpecificationAnd(Specification... specifications)

Method Detail

satisfies

public java.lang.String satisfies(java.lang.Object obj)

Description copied from interface: Specification

If null then satisfied, otherwise is reason why the specification is not satisfied.

Specified by:

satisfies in interface Specification