according to this this and owner seem to have the same meaning. Reading further I find that owner can refer to the enclosing class or closure. Is this the only difference? If so, why reserve an entire word just for that?
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srage
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James Parsons
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Here's a nice article on the topic: http://java.dzone.com/articles/groovy-closures-owner-delegate – Opal May 30 '14 at 07:50
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this refers to the enclosing class instance. owner refers to the directly enclosing object, which may or may not be the enclosing class instance. For example:
def x = { def y = { println this; println owner }; y() }
x()
Here this refers to the instance of the script class, and owner refers to x.
Peter Niederwieser
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Yep. It's also worthwhile mentioning that `delegate` is slightly different from `owner`. It can be programmatically changed. – Andrew Eisenberg Jun 02 '14 at 04:33