org.mule.runtime.core.api.el

Interface ExtendedExpressionLanguageAdaptor

All Superinterfaces:

ExpressionLanguageAdaptor

All Known Implementing Classes:

DataWeaveExpressionLanguageAdaptor, ExpressionLanguageAdaptorHandler, MVELExpressionLanguage

public interface ExtendedExpressionLanguageAdaptor
extends ExpressionLanguageAdaptor

Extends the ExpressionLanguageAdaptor supporting mutating operations and the propagation of more variables. Only meant to distinguish the Mule 3 inherited behaviour from the current approach.

Since:

4.0

Method Summary

Modifier and Type	Method and Description
void	enrich(String expression, Event event, Event.Builder eventBuilder, FlowConstruct flowConstruct, Object object) Deprecated. Mutation via expressions is deprecated.
void	enrich(String expression, Event event, Event.Builder eventBuilder, FlowConstruct flowConstruct, org.mule.runtime.api.metadata.TypedValue value) Deprecated. Mutation via expressions is deprecated.
org.mule.runtime.api.metadata.TypedValue	evaluate(String expression, Event event, Event.Builder eventBuilder, FlowConstruct flowConstruct, org.mule.runtime.api.el.BindingContext bindingContext) Deprecated. Mutation via expressions is deprecated.

Methods inherited from interface org.mule.runtime.core.api.el.ExpressionLanguageAdaptor

addGlobalBindings, evaluate, evaluate, evaluate, evaluate, split, split, validate

Method Detail

evaluate

@Deprecated
org.mule.runtime.api.metadata.TypedValue evaluate(String expression,
                                                              Event event,
                                                              Event.Builder eventBuilder,
                                                              FlowConstruct flowConstruct,
                                                              org.mule.runtime.api.el.BindingContext bindingContext)
                                                       throws ExpressionRuntimeException

Deprecated. Mutation via expressions is deprecated.

Execute the expression returning the result. The expression will be executed with MuleEvent context, meaning the expression language implementation should provided access to the message. A Map of variables can be provided that will be able to the expression when executed. Variable provided in the map will only be available if there are no conflict with context variables provided by the expression language implementation. This version of evaluate allows Event or InternalMessage mutation performed within the expression to be maintained post-evaluation via the use of a result Event.Builder which should be created from the original event before being passed and then used to construct the post-evaluation event.

Parameters:

expression - the expression to be executed

event - the current event being processed

eventBuilder - event builder instance used to mutate the current message or event.

flowConstruct - the flow where the event is being processed

bindingContext - the bindings to consider

Returns:

the result of execution of the expression.

Throws:

ExpressionRuntimeException - if a problem occurs evaluating the expression

enrich

@Deprecated
void enrich(String expression,
                        Event event,
                        Event.Builder eventBuilder,
                        FlowConstruct flowConstruct,
                        Object object)

Deprecated. Mutation via expressions is deprecated.

Enriches an event. This version of enrich allows Event or InternalMessage mutation performed within the expression to be maintained post-evaluation via the use of a result Event.Builder which should be created from the original event before being passed and then used to construct the post-evaluation event.

Parameters:

expression - a single expression i.e. header://foo that defines how the message should be enriched

event - The event to be enriched

eventBuilder - event builder instance used to mutate the current message or event.

flowConstruct - the flow where the event is being processed

object - The object used for enrichment

enrich

@Deprecated
void enrich(String expression,
                        Event event,
                        Event.Builder eventBuilder,
                        FlowConstruct flowConstruct,
                        org.mule.runtime.api.metadata.TypedValue value)

Deprecated. Mutation via expressions is deprecated.

Enriches an event using a typed value. This version of enrich allows Event or InternalMessage mutation performed within the expression to be maintained post-evaluation via the use of a result Event.Builder which should be created from the original event before being passed and then used to construct the post-evaluation event.

Parameters:

expression - a single expression i.e. header://foo that defines how the message should be enriched

event - The event to be enriched

eventBuilder - event builder instance used to mutate the current message or event.

flowConstruct - the flow where the event is being processed

value - The typed value used for enrichment