/// <summary>
/// Creates a new TransformationRuleSource instance for the given transformation rule in the given context
/// </summary>
/// <param name="rule">The transformation rule that should be used as source</param>
/// <param name="context">The context in which the computations should be used by the current instance</param>
public InPlaceTransformationRuleSource(InPlaceTransformationRuleBase <TIn> rule, ITransformationContext context)
{
if (rule == null)
{
throw new ArgumentNullException("rule");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
TransformationRule = rule;
Context = context;
rule.Dependencies.Add(this);
foreach (var c in context.Trace.TraceAllIn(rule).OfType <Computation>())
{
items.Add(new InPlaceComputationWrapper <TIn>(c));
}
}
/// <summary>
/// Creates a new computation source from a transformation rule
/// </summary>
/// <typeparam name="TInput1">The type of the first input arguments for the transformation rule</typeparam>
/// <typeparam name="TInput2">The type of the second input arguments for the transformation rule</typeparam>
/// <param name="rule">The rule that should be taken as a source of computation objects</param>
/// <param name="allowNull">A boolean value indicating whether null values should be allowed</param>
/// <param name="filter">A method or lambda expression to filter the computation objects</param>
/// <returns>A source of computations that can further be dealt with</returns>
public static Func <ITransformationContext, INotifyEnumerable <InPlaceComputationWrapper <TInput1, TInput2> > > ToComputationSource <TInput1, TInput2>(this InPlaceTransformationRuleBase <TInput1, TInput2> rule, bool allowNull, Func <InPlaceComputationWrapper <TInput1, TInput2>, bool> filter)
where TInput1 : class
where TInput2 : class
{
if (rule == null)
{
throw new ArgumentNullException("rule");
}
return(context => rule.ToComputationSource(context, allowNull, filter));
}
/// <summary>
/// Creates a new computation source from a transformation rule
/// </summary>
/// <typeparam name="TInput">The type of the input arguments for the transformation rule</typeparam>
/// <param name="rule">The rule that should be taken as a source of computation objects</param>
/// <returns>A source of computations that can further be dealt with</returns>
public static Func <ITransformationContext, INotifyEnumerable <InPlaceComputationWrapper <TInput> > > ToComputationSource <TInput>(this InPlaceTransformationRuleBase <TInput> rule)
where TInput : class
{
if (rule == null)
{
throw new ArgumentNullException("rule");
}
return(context => rule.ToComputationSource(context));
}
public static INotifyEnumerable <InPlaceComputationWrapper <TInput1, TInput2> > ToComputationSource <TInput1, TInput2>(this InPlaceTransformationRuleBase <TInput1, TInput2> rule, ITransformationContext context, bool allowNull, Func <InPlaceComputationWrapper <TInput1, TInput2>, bool> filter)
where TInput1 : class
where TInput2 : class
{
if (rule == null)
{
throw new ArgumentNullException("rule");
}
var trs = new InPlaceTransformationRuleSource <TInput1, TInput2>(rule, context)
{
Filter = filter
};
if (allowNull)
{
trs.AddNullItem();
}
return(trs);
}
/// <summary>
/// Creates a new computation source from a transformation rule
/// </summary>
/// <typeparam name="TInput1">The type of the first input arguments for the transformation rule</typeparam>
/// <typeparam name="TInput2">The type of the second input arguments for the transformation rule</typeparam>
/// <param name="rule">The rule that should be taken as a source of computation objects</param>
/// <param name="context">The context in which the rule is used as source of computations</param>
/// <returns>A source of computations that can further be dealt with</returns>
public static INotifyEnumerable <InPlaceComputationWrapper <TInput1, TInput2> > ToComputationSource <TInput1, TInput2>(this InPlaceTransformationRuleBase <TInput1, TInput2> rule, ITransformationContext context)
where TInput1 : class
where TInput2 : class
{
if (rule == null)
{
throw new ArgumentNullException("rule");
}
return(new InPlaceTransformationRuleSource <TInput1, TInput2>(rule, context));
}
public static INotifyEnumerable <InPlaceComputationWrapper <TInput> > ToComputationSource <TInput>(this InPlaceTransformationRuleBase <TInput> rule, ITransformationContext context, Func <InPlaceComputationWrapper <TInput>, bool> filter)
where TInput : class
{
if (rule == null)
{
throw new ArgumentNullException("rule");
}
return(new InPlaceTransformationRuleSource <TInput>(rule, context)
{
Filter = filter
});
}
