groovy.lang
[Java] Annotation Type Grapes

java.lang.Object
  groovy.lang.Grapes

public @interface Grapes

Sometimes we will need more than one grab per class, but we can only add one annotation type per annotatable node. This class allows for multiple grabs to be added.

For example:

 @Grapes([@Grab(module='m1'), @Grab(module='m2')])
 class AnnotatedClass { ... }
 

You can override an implicit transitive dependency by providing an explicit one. E.g. htmlunit 2.6 normally uses xerces 2.9.1 but you can get 2.9.0 as follows:

 @Grapes([
     @Grab('net.sourceforge.htmlunit:htmlunit:2.6'),
     @Grab('xerces#xercesImpl;2.9.0')
 ])
 

You can also remove transitive dependencies altogether (provided you know you don't need them) using @GrabExclude. For example, here is how we would not grab the logkit and avalon-framework transitive dependencies for Apache POI:

 @Grapes([
   @Grab("org.apache.poi#poi;3.5-beta6"),
   @GrabExclude("logkit:logkit"),
   @GrabExclude("avalon-framework#avalon-framework")
 ])
 import org.apache.poi.hssf.util.CellReference
 assert new CellReference(0, 0, false, false).formatAsString() == 'A1'
 assert new CellReference(1, 3).formatAsString() == '$D$2'
 

initClass

public boolean initClass

This will be pushed into the child grab annotations if the value is not set in the child annotation already.

This results in an effective change in the default value, which each @Grab can still override @default true

value

public Grab[] value

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