code.grnet.gr Git - pithos-ms-client/blob - trunk/hammock/src/net35/Hammock/Specifications/HammockSpecification.cs

   1 namespace Hammock.Specifications
   2 {
   3     public abstract class HammockSpecification<T> : ISpecification<T>
   4     {
   5         #region ISpecification<T> Members
   6
   7         public abstract bool IsSatisfiedBy(T instance);
   8
   9         public virtual ISpecification<T> And(ISpecification<T> other)
  10         {
  11             return new AndSpecification<T>(this, other);
  12         }
  13
  14         public virtual ISpecification<T> Or(ISpecification<T> other)
  15         {
  16             return new OrSpecification<T>(this, other);
  17         }
  18
  19         public virtual ISpecification<T> Not()
  20         {
  21             return new NotSpecification<T>(this);
  22         }
  23
  24         #endregion
  25
  26         public static ISpecification<T> operator &(HammockSpecification<T> one, ISpecification<T> other)
  27         {
  28             return one.And(other);
  29         }
  30
  31         public static ISpecification<T> operator |(HammockSpecification<T> one, ISpecification<T> other)
  32         {
  33             return one.Or(other);
  34         }
  35     }
  36 }