Core Annotations (dw::Core)

DataWeave 2.2 is compatible and bundled with Mule 4.2. Standard Support for Mule 4.2 ended on May 2, 2021, and this version of Mule will reach its End of Life on May 2, 2023, when Extended Support ends.

Deployments of new applications to CloudHub that use this version of Mule are no longer allowed. Only in-place updates to applications are permitted.

MuleSoft recommends that you upgrade to the latest version of Mule 4 that is in Standard Support so that your applications run with the latest fixes and security enhancements.

Annotation Definition Description


@AnnotationTarget(targets: Array<String>)

Defines where the Annotation can be used. If not defined, it can be used in any possible target.

Options are:

* Parameter: For function parameters. * Function: For function definitions. * Variable: For variable definitions. * Import: For import definitions.



Annotation that marks a parameter type as Design Only. This means that this field type is only validated at design time. At runtime, only minimal type validation takes place. This is useful for performance reasons, especially with complex Object types.



Annotation that marks a parameter as Stream capable. This means that this field is going to consume the Array of Object in a forward only manner.



Annotation that marks a function to be Tail Recursive. If the function is not tail recursive, it will start failing.

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