/trunk/src/Example/Remember.Model/Specification.cs   r0
 
 

 
/trunk/src/Example/Remember.Model/Specification.cs   r392
 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 

 

 
 
 
 
 
 
 
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using System;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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using System.Collections.Generic;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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using System.Linq;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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using System.Text;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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namespace Remember.Model
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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{
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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    public abstract class Specification<T>
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        where T : class
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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    {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        public bool IsSatisfiedBy(T candidate)
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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            if (candidate == null)
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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                throw new ArgumentNullException("candidate");
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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            return SatisfiersFrom(new[] { candidate }).Any();
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        }
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        public IEnumerable<T> SatisfiersFrom(IEnumerable<T> candidates)
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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            if (candidates == null)
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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                throw new ArgumentNullException("candidates");
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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            return SatisfiersFrom(candidates.AsQueryable());
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        }
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        public abstract IQueryable<T> SatisfiersFrom(IQueryable<T> candidates);
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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    }
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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}