org.mule.extension.annotations.param

Annotation Type Optional

@Target(value={PARAMETER,FIELD,METHOD})
@Retention(value=RUNTIME)
@Documented
public @interface Optional

Marks a Parameter field a optional. All configurable attributes that don't include this annotation are considered required

Since:

1.0

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	defaultValue The default value to use if the user doesn't specify a value for the parameter.

Element Detail

defaultValue

public abstract String defaultValue

The default value to use if the user doesn't specify a value for the parameter. It can be the value itself or an expression. Since null values are not allowed as default values in java annotations, the special NULL value was to created to reference that the parameter should default to null

Returns:

the default value

Default:

"THIS IS A SPECIAL NULL VALUE - DO NOT USE"