public ISpecification<Person> GetAgeSpecifications(SpecificationLogic logic, int? minAge, int? maxAge)
{
var minAgeSpecification = new PersonFromAgeSpecification(minAge);
var maxAgeSpecification = new PersonUntilAgeSpecification(maxAge);
return getSpecificationByLogic(logic, minAgeSpecification, maxAgeSpecification);
}
public ISpecification<Person> GetNameAndJobSpecification(SpecificationLogic logic, string nameFragment, string jobFragment)
{
var nameSpecification = new PersonNameSpecification(nameFragment);
var jobSpecification = new PersonJobTitleSpecification(jobFragment);
return getSpecificationByLogic(logic, nameSpecification, jobSpecification);
}
public void And_AllSpecificationsArePersistenceAware_ShouldReturnPersistenceAwareSpecification()
{
//Assert
var specification1 = new TestPersistenceAwareSpec <TestEntity>(x => x.A == 1);
var specification2 = new TestPersistenceAwareSpec <TestEntity>(x => x.B == 2);
//Act
var combinedSpec = SpecificationLogic.And(specification1, specification2);
//Assert
Assert.That(combinedSpec, Is.AssignableTo <PersistenceAndSpecification <TestEntity> >());
}
private ISpecification<Person> getSpecificationByLogic(SpecificationLogic logic, ISpecification<Person> left, ISpecification<Person> right)
{
if (logic == SpecificationLogic.And)
{
return new AndSpecification<Person>(left, right);
}
else if (logic == SpecificationLogic.Or)
{
return new OrSpecification<Person>(left, right);
}
else
{
throw new InvalidOperationException("Query.Logic is in invalid state.");
}
}
public static PersistenceAwareSpecification <TEntity> operator &(
PersistenceAwareSpecification <TEntity> spec1,
PersistenceAwareSpecification <TEntity> spec2)
{
return(SpecificationLogic.And(spec1, spec2));
}
public static Specification <TEntity> operator &(
Specification <TEntity> spec1,
Specification <TEntity> spec2)
{
return(SpecificationLogic.And(spec1, spec2));
}