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- java.lang.Object
-
- javax.lang.model.util.AbstractElementVisitor6<R,P>
-
- Type Parameters:
R
- the return type of this visitor's methods. UseVoid
for visitors that do not need to return results.P
- the type of the additional parameter to this visitor's methods. UseVoid
for visitors that do not need an additional parameter.
- All Implemented Interfaces:
- ElementVisitor<R,P>
- Direct Known Subclasses:
- AbstractElementVisitor7, ElementScanner6, SimpleElementVisitor6
@SupportedSourceVersion(value=RELEASE_6) public abstract class AbstractElementVisitor6<R,P> extends Object implements ElementVisitor<R,P>
A skeletal visitor of program elements with default behavior appropriate for theRELEASE_6
source version.WARNING: The
ElementVisitor
interface implemented by this class may have methods added to it in the future to accommodate new, currently unknown, language structures added to future versions of the Java™ programming language. Therefore, methods whose names begin with"visit"
may be added to this class in the future; to avoid incompatibilities, classes which extend this class should not declare any instance methods with names beginning with"visit"
.When such a new visit method is added, the default implementation in this class will be to call the
visitUnknown
method. A new abstract element visitor class will also be introduced to correspond to the new language level; this visitor will have different default behavior for the visit method in question. When the new visitor is introduced, all or portions of this visitor may be deprecated.- Since:
- 1.6
- See Also:
AbstractElementVisitor7
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-
Constructor Summary
Constructors Modifier Constructor and Description protected
AbstractElementVisitor6()
Constructor for concrete subclasses to call.
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Method Summary
Methods Modifier and Type Method and Description R
visit(Element e)
Visits any program element as if by passing itself to that element'saccept
method and passingnull
for the additional parameter.R
visit(Element e, P p)
Visits any program element as if by passing itself to that element'saccept
method.R
visitUnknown(Element e, P p)
Visits an unknown kind of element.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface javax.lang.model.element.ElementVisitor
visitExecutable, visitPackage, visitType, visitTypeParameter, visitVariable
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Constructor Detail
-
AbstractElementVisitor6
protected AbstractElementVisitor6()
Constructor for concrete subclasses to call.
-
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Method Detail
-
visit
public final R visit(Element e, P p)
Visits any program element as if by passing itself to that element'saccept
method. The invocationv.visit(elem)
is equivalent toelem.accept(v, p)
.- Specified by:
visit
in interfaceElementVisitor<R,P>
- Parameters:
e
- the element to visitp
- a visitor-specified parameter- Returns:
- a visitor-specified result
-
visit
public final R visit(Element e)
Visits any program element as if by passing itself to that element'saccept
method and passingnull
for the additional parameter. The invocationv.visit(elem)
is equivalent toelem.accept(v, null)
.- Specified by:
visit
in interfaceElementVisitor<R,P>
- Parameters:
e
- the element to visit- Returns:
- a visitor-specified result
-
visitUnknown
public R visitUnknown(Element e, P p)
Visits an unknown kind of element. This can occur if the language evolves and new kinds of elements are added to theElement
hierarchy.The default implementation of this method in
AbstractElementVisitor6
will always throwUnknownElementException
. This behavior is not required of a subclass.- Specified by:
visitUnknown
in interfaceElementVisitor<R,P>
- Parameters:
e
- the element to visitp
- a visitor-specified parameter- Returns:
- a visitor-specified result
- Throws:
UnknownElementException
- a visitor implementation may optionally throw this exception
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