Class ElementScanner9<R,P>
java.lang.Object
javax.lang.model.util.AbstractElementVisitor6<R,P>
javax.lang.model.util.ElementScanner6<R,P>
javax.lang.model.util.ElementScanner7<R,P>
javax.lang.model.util.ElementScanner8<R,P>
javax.lang.model.util.ElementScanner9<R,P>
- Type Parameters:
R- the return type of this visitor's methods. UseVoidfor visitors that do not need to return results.P- the type of the additional parameter to this visitor's methods. UseVoidfor visitors that do not need an additional parameter.
- All Implemented Interfaces:
ElementVisitor<R,P>
- Direct Known Subclasses:
ElementScanner14
A scanning visitor of program elements with default behavior
appropriate for source versions
RELEASE_9 through RELEASE_14.
The visitXyz methods in this class scan their
component elements by calling scan on their enclosed elements, parameters, etc., as indicated in the individual method
specifications. A subclass can control the order elements are
visited by overriding the visitXyz methods.
Note that clients of a scanner may get the desired behavior by
invoking v.scan(e, p) rather than v.visit(e, p) on
the root objects of interest.
When a subclass overrides a visitXyz method, the
new method can cause the enclosed elements to be scanned in the
default way by calling super.visitXyz. In this
fashion, the concrete visitor can control the ordering of traversal
over the component elements with respect to the additional
processing; for example, consistently calling
super.visitXyz at the start of the overridden
methods will yield a preorder traversal, etc. If the component
elements should be traversed in some other order, instead of
calling super.visitXyz, an overriding visit method
should call scan with the elements in the desired order.
- API Note:
- Methods in this class may be overridden subject to their general contract.
- Since:
- 9
- See Also:
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Field Summary
Fields declared in class javax.lang.model.util.ElementScanner6
DEFAULT_VALUE -
Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedConstructor for concrete subclasses; usesnullfor the default value.protectedElementScanner9(R defaultValue) Constructor for concrete subclasses; uses the argument for the default value. -
Method Summary
Methods declared in class javax.lang.model.util.ElementScanner7
visitVariableMethods declared in class javax.lang.model.util.ElementScanner6
scan, scan, scan, visitExecutable, visitPackage, visitRecordComponent, visitType, visitTypeParameterMethods declared in class javax.lang.model.util.AbstractElementVisitor6
visit, visit, visitUnknown
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Constructor Details
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ElementScanner9
protected ElementScanner9()Constructor for concrete subclasses; usesnullfor the default value. -
ElementScanner9
Constructor for concrete subclasses; uses the argument for the default value.- Parameters:
defaultValue- the default value
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Method Details
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visitModule
Visits a module element.- Specified by:
visitModulein interfaceElementVisitor<R,P> - Overrides:
visitModulein classAbstractElementVisitor6<R,P> - Implementation Requirements:
- This implementation scans the enclosed elements.
- Parameters:
e- the element to visitp- a visitor-specified parameter- Returns:
- a visitor-specified result
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