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81 строка
1.8 KiB
Plaintext
81 строка
1.8 KiB
Plaintext
Extension methods
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/META-INF/services/org.codehaus.groovy.runtime.ExtensionModule
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moduleName=runtime-metaprogramming
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moduleVersion=1.0
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extensionClasses=devoxx.demo.StringExtensions [, ...]
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StringExtensions.groovy
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package devoxx.demo
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class StringExtensions {
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static int getMagicNumber(String instance) {
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42
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}
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static int doSomething(Integer instance, Integer arg1, Ingeter arg2) {
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...
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}
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}
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Metaclass:
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class Widget {}
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Widget.metaClass.methodMissing = { String mn, args ->
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println "in methodMissing for method: $mn"
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}
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Extension modules:
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http://docs.groovy-lang.org/latest/html/documentation/#_extension_modules
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http://habrahabr.ru/post/215343/
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http://habrahabr.ru/post/205084/
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http://habrahabr.ru/post/145977/
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http://www.slideshare.net/SpringCentral/groovy-asttransforms-paulkingsep2014b
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@CompileStatic
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@Field
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@Bindable
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@Vetoable
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@Delegate
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@ToString
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a lot of params like includeNames, ignoreNulls, excludes, includePackage, includeFields
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@EqualsAndHashCode
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includes, excludes, cache, callSuper, includeFields, useCanEqual
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@Immutable
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class - final, fields - private final, equals/hashCode/toString
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@InheritConstructors
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@TupleConstructor
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@Cannonical
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combines: TupleConstructor, ToString, EqualsAndHashCode
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make right java-class ... combining all the mentioned above
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@Sortable
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includes/excludes
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@AutoClone
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@AutoExternalize
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@Category
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@Mixin
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obsolete
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@Lazy
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@Memoized
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@Singleton
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@Newify
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@PackageScope
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make all the class field non-public
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@Builder
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builderStrategy
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@TailRecursive
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@Log
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@Synchronized
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@With[Read/Write]Lock
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@AutoClone
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@AutoExternalize
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@TimedInterrupt/ThreadInterrupt/ConditionalInterrupt
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@Main
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@Trace
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println ("method begin") / ... / println ("method end")
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@BaseScript
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annotation on imports&package
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@NotYetImplemented
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