Interface IRightHandSideExpression

Namespace

NRules.Fluent.Dsl

Assembly

NRules.Fluent.dll

Rule's right-hand side (actions) expression builder.

public interface IRightHandSideExpression

Methods

Action(Expression<Action<IContext>>, ActionTrigger)

Defines rule's action that engine executes for a given trigger.

IRightHandSideExpression Action(Expression<Action<IContext>> action, ActionTrigger actionTrigger)

Parameters

action Expression<Action<IContext>>

Action expression.

actionTrigger ActionTrigger

Events that should trigger this action.

Returns

IRightHandSideExpression

Right hand side expression builder.

Do(Expression<Action<IContext>>)

Defines rule's action that engine executes when the rule fires due to the initial rule match or due to an update.

IRightHandSideExpression Do(Expression<Action<IContext>> action)

Parameters

action Expression<Action<IContext>>

Action expression.

Returns

IRightHandSideExpression

Right hand side expression builder.

Undo(Expression<Action<IContext>>)

Defines rule's action that engine executes when the rule fires due to the match removal (provided the rule previously fired on the match).

IRightHandSideExpression Undo(Expression<Action<IContext>> action)

Parameters

action Expression<Action<IContext>>

Action expression.

Returns

IRightHandSideExpression

Right hand side expression builder.

Yield<TFact>(Expression<Func<IContext, TFact>>)

Defines rule's action that yields a linked fact when the rule fires. If the rule fires due to an update, the linked fact is also updated with the new yielded value.

IRightHandSideExpression Yield<TFact>(Expression<Func<IContext, TFact>> yield)

Parameters

yield Expression<Func<IContext, TFact>>

Action expression that yields the linked fact.

Returns

IRightHandSideExpression

Right hand side expression builder.

Type Parameters

TFact

Type of fact to yield.

Yield<TFact>(Expression<Func<IContext, TFact>>, Expression<Func<IContext, TFact, TFact>>)

Defines rule's action that yields a linked fact when the rule fires. If the rule fires due to an update, the update expression is evaluated to produce an updated linked fact.

IRightHandSideExpression Yield<TFact>(Expression<Func<IContext, TFact>> yieldInsert, Expression<Func<IContext, TFact, TFact>> yieldUpdate)

Parameters

yieldInsert Expression<Func<IContext, TFact>>

Action expression that yields a new linked fact.

yieldUpdate Expression<Func<IContext, TFact, TFact>>

Action expression that yields an updated linked fact.

Returns

IRightHandSideExpression

Right hand side expression builder.

Type Parameters

TFact

Type of fact to yield.