- java.lang.Object
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- com.sun.source.util.TreeScanner<R,P>
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- com.sun.source.util.TreePathScanner<R,P>
 
 
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- All Implemented Interfaces:
- TreeVisitor<R,P>
 
 public class TreePathScanner<R,P> extends TreeScanner<R,P> A TreeVisitor that visits all the child tree nodes, and provides support for maintaining a path for the parent nodes. To visit nodes of a particular type, just override the corresponding visitorXYZ method. Inside your method, call super.visitXYZ to visit descendant nodes.- API Note:
- In order to initialize the "current path", the scan must be
 started by calling one of the scanmethods.
- Since:
- 1.6
 
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Constructor SummaryConstructors Constructor Description TreePathScanner()
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Method SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description TreePathgetCurrentPath()Returns the current path for the node, as built up by the currently active set of scan calls.Rscan(Tree tree, P p)Scans a single node.Rscan(TreePath path, P p)Scans a tree from a position identified by a TreePath.- 
Methods declared in class com.sun.source.util.TreeScannerreduce, scan, visitAnnotatedType, visitAnnotation, visitArrayAccess, visitArrayType, visitAssert, visitAssignment, visitBinary, visitBlock, visitBreak, visitCase, visitCatch, visitClass, visitCompilationUnit, visitCompoundAssignment, visitConditionalExpression, visitContinue, visitDoWhileLoop, visitEmptyStatement, visitEnhancedForLoop, visitErroneous, visitExpressionStatement, visitForLoop, visitIdentifier, visitIf, visitImport, visitInstanceOf, visitIntersectionType, visitLabeledStatement, visitLambdaExpression, visitLiteral, visitMemberReference, visitMemberSelect, visitMethod, visitMethodInvocation, visitModifiers, visitNewArray, visitNewClass, visitOther, visitPackage, visitParameterizedType, visitParenthesized, visitPrimitiveType, visitReturn, visitSwitch, visitSynchronized, visitThrow, visitTry, visitTypeCast, visitTypeParameter, visitUnary, visitUnionType, visitVariable, visitWhileLoop, visitWildcard
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Methods declared in class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods declared in interface com.sun.source.tree.TreeVisitorvisitExports, visitModule, visitOpens, visitProvides, visitRequires, visitUses
 
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Method Detail- 
scanpublic R scan(TreePath path, P p) Scans a tree from a position identified by a TreePath.- Parameters:
- path- the path identifying the node to be scanned
- p- a parameter value passed to visit methods
- Returns:
- the result value from the visit method
 
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scanpublic R scan(Tree tree, P p) Scans a single node. The current path is updated for the duration of the scan.- Overrides:
- scanin class- TreeScanner<R,P>
- API Note:
- This method should normally only be called by the
 scanner's visitmethods, as part of an ongoing scan initiated byscan(TreePath, P). The one exception is that it may also be called to initiate a full scan of aCompilationUnitTree.
- Parameters:
- tree- the node to be scanned
- p- a parameter value passed to the visit method
- Returns:
- the result value from the visit method
 
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getCurrentPathpublic TreePath getCurrentPath() Returns the current path for the node, as built up by the currently active set of scan calls.- Returns:
- the current path
 
 
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