July 2013
Intermediate to advanced
370 pages
8h 27m
English
Content preview from Programming Groovy 2Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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19.5 Groovy and DSLs
Groovy has a number of key capabilities to help create internal DSLs, including the following:
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Dynamic and optional typing (Section 3.5, Optional Typing)
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The flexibility to load scripts dynamically, plus manipulate and execute them (Section 10.8, Using Groovy Scripts from Groovy)
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Open classes, thanks to categories and
ExpandoMetaClass (see Chapter 13, MOP Method Injection) -
Closures that provide a nice context for execution (Chapter 4, Using Closures)
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Operator overloading helps freely define operators (Section 2.8, Operator Overloading).
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Builder support (Chapter 17, Groovy Builders)
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Flexible parentheses
Groovy’s handling of flexible parentheses is useful and annoying at the same time. Groovy requires no parentheses ...
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