Package groovy.lang

Core Groovy language classes for implementing data structures, closures, metadata and so forth.

Interface Summary

Interface	Description
AdaptingMetaClass	An interface for MetaClass instances that "adapt" other MetaClass instances such as a proxy or delegating MetaClass.
Buildable
ClosureInvokingMethod	An interface for MetaMethods that invoke closures to implements.
GeneratedGroovyProxy	An interface implemented by some Groovy proxies which gives access to the proxied object.
GroovyCallable<V>	A special "marker" style interface allowing Groovy classes to implement both Runnable and Callable yet give preference to Runnable (for backwards compatibility) for APIs having both Runnable and Callable methods.
GroovyInterceptable	Marker interface used to notify that all methods should be intercepted through the invokeMethod mechanism of GroovyObject.
GroovyObject	The interface implemented by all Groovy objects.
GroovyResourceLoader	Allows frameworks that integrate with Groovy to determine how Groovy files are resolved.
Interceptor	Implementers of this interface can be registered in the ProxyMetaClass for notifications about method calls for objects managed by the ProxyMetaClass.
MetaClass	A MetaClass within Groovy defines the behaviour of any given Groovy or Java class.
MetaClassRegistry	A MetaClassRegistry is an object that is responsible for managing the a cache of MetaClass instances.
MetaClassRegistryChangeEventListener	A listener called whenever a constant MetaClass is set, removed or replaced.
MetaObjectProtocol	An interface that defines the API usable by clients of Groovy's Meta Object Protocol (MOP).
MutableMetaClass	An interface that defines methods that implementers of mutable Meta classes should specify.
PropertyAccessInterceptor	An interface that adds the ability to intercept property getters/setters
Range<T extends Comparable>	A Range represents the list of discrete items between some starting (or from) value and working up towards some ending (or to) value.
Writable	Represents an object which is capable of writing itself to a text stream in a more efficient format than just creating a toString() representation of itself.

Class Summary

Class	Description
BenchmarkInterceptor	Interceptor that registers the timestamp of each method call before and after invocation.
Binding	Represents the variable bindings of a script which can be altered from outside the script object or created outside of a script and passed into it.
Closure<V>	Represents any closure object in Groovy.
DelegatingMetaClass
EmptyRange<T extends Comparable>	Constructing Ranges like 0..<0
ExpandoMetaClass	ExpandoMetaClass is a MetaClass that behaves like an Expando, allowing the addition or replacement of methods, properties and constructors on the fly.
ExpandoMetaClassCreationHandle	A handle for the MetaClassRegistry that changes all classes loaded into the Grails VM to use ExpandoMetaClass instances
GroovyClassLoader	A ClassLoader which can load Groovy classes.
GroovyClassLoader.ClassCollector
GroovyClassLoader.InnerLoader
GroovyCodeSource	CodeSource wrapper class that allows specific security policies to be associated with a class compiled from groovy source.
GroovyObjectSupport	Base class for Java objects wishing to be Groovy objects.
GroovyShell	Represents a groovy shell capable of running arbitrary groovy scripts
GroovySystem
GString	Represents a String which contains embedded values such as "hello there ${user} how are you?" which can be evaluated lazily.
IntRange	Represents a list of Integer objects starting at a specified from value up (or down) to and potentially including a given to value.
ListWithDefault<T>	A wrapper for List which automatically grows the list when either ListWithDefault.get(int) or ListWithDefault.getAt(int) is called with an index greater than or equal to size().
MapWithDefault<K,V>	A wrapper for Map which allows a default value to be specified.
MetaArrayLengthProperty	Represents the length property of an array
MetaBeanProperty	Represents a property on a bean which may have a getter and/or a setter
MetaClassImpl	Allows methods to be dynamically added to existing classes at runtime
MetaClassImpl.Index
MetaClassImpl.MetaConstructor	This is a helper class introduced in Groovy 2.1.0, which is used only by indy.
MetaClassRegistry.MetaClassCreationHandle	Class used as base for the creation of MetaClass implementations.
MetaClassRegistryChangeEvent	An event used to propagate meta class updates
MetaExpandoProperty	Represents a property in an Expando object
MetaMethod	Represents a Method on a Java object a little like Method except without using reflection to invoke the method
MetaProperty	Represents a property on a bean which may have a getter and/or a setter
NonEmptySequence	Represents a sequence of one or more objects of a given type.
NumberRange	Represents an immutable list of Numbers from a value to a value with a particular step size.
ObjectRange	Represents an inclusive list of objects from a value to a value using comparators.
ParameterArray	Deprecated.
PropertyValue
ProxyMetaClass	As subclass of MetaClass, ProxyMetaClass manages calls from Groovy Objects to POJOs.
Reference<T>	Represents a reference to a value
Script	This object represents a Groovy script
Sequence	Represents a sequence of zero or more objects of a given type.
SpreadMap	Helper to turn a list with an even number of elements into a Map.
TracingInterceptor
Tuple<E>	Represents a list of Objects.
Tuple0	Represents a list of 0 typed Object.
Tuple1<T1>	Represents a list of 1 typed Object.
Tuple10<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10>	Represents a list of 10 typed Objects.
Tuple11<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11>	Represents a list of 10 typed Objects.
Tuple12<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12>	Represents a list of 12 typed Objects.
Tuple13<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13>	Represents a list of 13 typed Objects.
Tuple14<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14>	Represents a list of 14 typed Objects.
Tuple15<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15>	Represents a list of 15 typed Objects.
Tuple16<T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16>	Represents a list of 16 typed Objects.
Tuple2<T1,T2>	Represents a list of 2 typed Objects.
Tuple3<T1,T2,T3>	Represents a list of 3 typed Objects.
Tuple4<T1,T2,T3,T4>	Represents a list of 4 typed Objects.
Tuple5<T1,T2,T3,T4,T5>	Represents a list of 5 typed Objects.
Tuple6<T1,T2,T3,T4,T5,T6>	Represents a list of 6 typed Objects.
Tuple7<T1,T2,T3,T4,T5,T6,T7>	Represents a list of 7 typed Objects.
Tuple8<T1,T2,T3,T4,T5,T6,T7,T8>	Represents a list of 8 typed Objects.
Tuple9<T1,T2,T3,T4,T5,T6,T7,T8,T9>	Represents a list of 9 typed Objects.

Exception Summary

Exception	Description
ClosureException	An exception thrown by a closure invocation
DeprecationException	Use this exception to mark a method implementation as being deprecated.
GroovyRuntimeException	An exception thrown by the interpreter
IllegalPropertyAccessException	An exception occurred if a dynamic property dispatch fails with a field not accessible.
IncorrectClosureArgumentsException	An exception occurred when invoking a Closure with the wrong number and/or types of arguments
MissingClassException	An exception occurred if a dynamic method dispatch fails with an unknown class.
MissingFieldException	An exception occurred if a dynamic field dispatch fails with an unknown field.
MissingMethodException	An exception occurred if a dynamic method dispatch fails with an unknown method.
MissingPropertyException	An exception occurred if a dynamic property dispatch fails with an unknown property.
ReadOnlyPropertyException	This exception is thrown if an attempt is made to set a read only property
SpreadListEvaluatingException
SpreadMapEvaluatingException
StringWriterIOException	An IO exception occurred trying to append to a StringWriter which should never happen.

Annotation Types Summary

Annotation Type	Description
Category	Transforms an instance-style Groovy class or interface to become a static-style conventional Groovy category.
Delegate	Annotation to automatically delegate part of the functionality of an owner class to the annotated delegation target.
DelegatesTo	This annotation can be used by API or DSL writers to document parameters which accept a closure.
DelegatesTo.Target	Parameter annotation used to specify the delegate for a @DelegatesTo annotated parameter of the same method.
Grab	Used to grab the referenced artifact and its dependencies and make it available on the Classpath.
GrabConfig	Used to modify the grape configuration for grab requests.
GrabExclude	Used to exclude an indirectly referenced artifact (a transitive dependency) from the classpath.
GrabResolver	Used to add a repository for resolving Grape dependencies.
Grapes	Sometimes we will need more than one grab per class, but we can only add one annotation type per annotatable node.
Groovydoc	An annotation to hold the groovydoc for the annotated element at runtime, we call it "Runtime Groovydoc".
Lazy	Field annotation to simplify lazy initialization.
Mixin	Deprecated. static mixins have been deprecated in favour of traits (trait keyword).
Newify	Annotation that supports writing constructor call expressions without the 'new' keyword.
Singleton	Class annotation to make a singleton class.