/
Specification.cs
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/
Specification.cs
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using System;
namespace InfinniPlatform.DocumentStorage.Specifications
{
/// <inheritdoc />
public class Specification : ISpecification
{
/// <summary>
/// Initializes a new instance of <see cref="Specification" />.
/// </summary>
/// <param name="filter">Data filter condition.</param>
public Specification(Func<IDocumentFilterBuilder, object> filter = null)
{
Filter = filter;
}
/// <inheritdoc />
public virtual Func<IDocumentFilterBuilder, object> Filter { get; }
/// <summary>
/// Implicit conversion from <see cref="Specification"/> to <see cref="Func{T1, TResult}"/>.
/// </summary>
/// <param name="value">Specification instance.</param>
public static implicit operator Func<IDocumentFilterBuilder, object>(Specification value)
{
return value.Filter;
}
/// <summary>
/// Implicit conversion from <see cref="Func{T1, TResult}"/> to <see cref="Specification"/>.
/// </summary>
/// <param name="value">Specification instance.</param>
public static implicit operator Specification(Func<IDocumentFilterBuilder, object> value)
{
return new Specification(value);
}
/// <summary>
/// Overloaded logical negation operator.
/// </summary>
/// <param name="value">Specification instance.</param>
public static Specification operator !(Specification value)
{
return new Specification(f => f.Not(value));
}
/// <summary>
/// Overloaded logical AND operator.
/// </summary>
/// <param name="left">Specification instance.</param>
/// <param name="right">Specification instance.</param>
public static Specification operator &(Specification left, Specification right)
{
return new Specification(f => f.And(left, right));
}
/// <summary>
/// Overloaded logical OR operator.
/// </summary>
/// <param name="left">Specification instance.</param>
/// <param name="right">Specification instance.</param>
public static Specification operator |(Specification left, Specification right)
{
return new Specification(f => f.Or(left, right));
}
}
}