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Class ElementScanner7<R,P>

Type Parameters:
R - the return type of this visitor's methods. Use Void for visitors that do not need to return results.
P - the type of the additional parameter to this visitor's methods. Use Void for visitors that do not need an additional parameter.
All Implemented Interfaces:
ElementVisitor<R,P>
Direct Known Subclasses:
ElementScanner8
@SupportedSourceVersion(RELEASE_7) public class ElementScanner7<R,P> extends ElementScanner6<R,P>
A scanning visitor of program elements with default behavior appropriate for the RELEASE_7 source version. 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:
1.7
See Also:

Field Summary

Fields declared in class javax.lang.model.util.ElementScanner6

DEFAULT_VALUE

Constructor Summary

ElementScanner7(R defaultValue)
Modifier Constructor Description
protected
Deprecated.
Release 7 is obsolete; update to a visitor for a newer release level.
protected
Deprecated.
Release 7 is obsolete; update to a visitor for a newer release level.

Method Summary

Modifier and Type Method Description
R visitVariable(VariableElement e, P p)
Visits a variable element.

Methods declared in class javax.lang.model.util.ElementScanner6

scan, scan, scan, visitExecutable, visitPackage, visitType, visitTypeParameter

Methods declared in class javax.lang.model.util.AbstractElementVisitor6

visit, visit, visitModule, visitRecordComponent, visitUnknown

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ElementScanner7

@Deprecated(since="12") protected ElementScanner7()
Deprecated.
Release 7 is obsolete; update to a visitor for a newer release level.
Constructor for concrete subclasses; uses null for the default value.

ElementScanner7

@Deprecated(since="12") protected ElementScanner7(R defaultValue)
Deprecated.
Release 7 is obsolete; update to a visitor for a newer release level.
Constructor for concrete subclasses; uses the argument for the default value.
Parameters:
defaultValue - the default value

Method Details

visitVariable

public R visitVariable(VariableElement e, P p)
Visits a variable element.
Specified by:
visitVariable in interface ElementVisitor<R,P>
Overrides:
visitVariable in class ElementScanner6<R,P>
Implementation Requirements:
This implementation scans the enclosed elements.
Parameters:
e - the element to visit
p - a visitor-specified parameter
Returns:
the result of scanning

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.compiler/javax/lang/model/util/ElementScanner7.html