/// <summary>
/// Creates a new specification based on the current one combined with the specified specification.
/// </summary>
/// <param name="specification">The specification.</param>
/// <returns>New specification with the current specification combined with the specified specification.</returns>
/// <exception cref="ArgumentNullException">The <paramref name="specification"/> is <c>null</c>.</exception>
public Specification <TEntity> And(Specification <TEntity> specification)
{
Argument.IsNotNull("specification", specification);
return(new Specification <TEntity>(Predicate.And(specification.Predicate)));
}
/// <summary>
/// Initializes a new instance of the <see cref="OrSpecification{TEntity}" /> class.
/// </summary>
/// <param name="leftSide">The left side.</param>
/// <param name="rightSide">The right side.</param>
/// <exception cref="ArgumentNullException">The <paramref name="leftSide"/> is <c>null</c>.</exception>
/// <exception cref="ArgumentNullException">The <paramref name="rightSide"/> is <c>null</c>.</exception>
public OrSpecification(Specification <TEntity> leftSide, Specification <TEntity> rightSide)
: base(leftSide, rightSide, () => leftSide.Predicate.Or(rightSide.Predicate).Compile())
{
}