- java.lang.Object
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- jdk.dynalink.beans.StaticClass
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- All Implemented Interfaces:
Serializable
public final class StaticClass extends Object implements Serializable
Object that allows access to the static members of a class (its static methods, properties, and fields), as well as construction of instances usingStandardOperation.NEWoperation. In Dynalink,Classobjects are not treated specially and act as ordinary Java objects; you can use e.g.GET:PROPERTY:superclassas a property getter to invokeclazz.getSuperclass(). On the other hand, you can not useClassobjects to access static members of a class, nor to create new instances of the class usingNEW. This is consistent with howClassobjects behave in Java: in Java, you write e.g.new BitSet()instead ofnew BitSet.class(). Similarly, you writeSystem.outand notSystem.class.out. It is this aspect of using a class name as the constructor and a namespace for static members thatStaticClassembodies.Objects of this class are recognized by the
BeansLinkeras being special, and operations on them will be linked against the represented class' static members. The"class"synthetic property is additionally recognized and returns the JavaClassobject, just as in JavaSystem.classevaluates to theClassobject for the System class. Conversely,Classobjects exposed throughBeansLinkerexpose the"static"synthetic property which returns theirStaticClassobject (there is no equivalent to this in Java).In summary, instances of this class act as namespaces for static members and as constructors for classes, much the same way as specifying a class name in Java language does, except that in Java this is just a syntactic element, while in Dynalink they are expressed as actual objects.
StaticClassobjects representing Java array types will act as constructors taking a single int argument and create an array of the specified size.If the class has several constructors,
StandardOperation.NEWonStaticClasswill try to select the most specific applicable constructor. You might want to expose a mechanism in your language for selecting a constructor with an explicit signature throughBeansLinker.getConstructorMethod(Class, String).- See Also:
- Serialized Form
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static StaticClassforClass(Class<?> clazz)Retrieves theStaticClassinstance for the specified class.Class<?>getRepresentedClass()Returns the represented Java class.
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Method Detail
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forClass
public static StaticClass forClass(Class<?> clazz)
Retrieves theStaticClassinstance for the specified class.- Parameters:
clazz- the class for which the static facet is requested.- Returns:
- the
StaticClassinstance representing the specified class.
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getRepresentedClass
public Class<?> getRepresentedClass()
Returns the represented Java class.- Returns:
- the represented Java class.
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