Module jdk.compiler
Package com.sun.source.util

## Class DocTreePathScanner<R,​P>

- java.lang.Object
- - com.sun.source.util.DocTreeScanner<R,​P>
  - - com.sun.source.util.DocTreePathScanner<R,​P>

- All Implemented Interfaces:
    `DocTreeVisitor<R,​P>`

      public class DocTreePathScanner<R,​P>
      extends DocTreeScanner<R,​P>

  A DocTreeVisitor 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.
  Since:
    1.8

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `DocTreePathScanner()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `DocTreePath` | `getCurrentPath()` | Returns the current path for the node, as built up by the currently active set of scan calls.
    `R` | `scan​(DocTree tree, P p)` | Scans a single node.
    `R` | `scan​(DocTreePath path, P p)` | Scans a tree from a position identified by a tree path.

    - ### Methods declared in class com.sun.source.util.DocTreeScanner

      `reduce, scan, visitAttribute, visitAuthor, visitComment, visitDeprecated, visitDocComment, visitDocRoot, visitDocType, visitEndElement, visitEntity, visitErroneous, visitHidden, visitIdentifier, visitIndex, visitInheritDoc, visitLink, visitLiteral, visitOther, visitParam, visitProvides, visitReference, visitReturn, visitSee, visitSerial, visitSerialData, visitSerialField, visitSince, visitStartElement, visitSummary, visitText, visitThrows, visitUnknownBlockTag, visitUnknownInlineTag, visitUses, visitValue, visitVersion`

    - ### Methods declared in class java.lang.Object

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

- - ### Constructor Detail

    - #### DocTreePathScanner

          public DocTreePathScanner()

  - ### Method Detail

    - #### scan

          public R scan​(DocTreePath path,
                        P p)

      Scans a tree from a position identified by a tree path.
      Parameters:
        `path` - the path
        `p` - a value to be passed to visitor methods
      Returns:
        the result returned from the main visitor method

    - #### scan

          public R scan​(DocTree tree,
                        P p)

      Scans a single node. The current path is updated for the duration of the scan.
      Overrides:
        `scan` in class `DocTreeScanner<R,​P>`
      Parameters:
        `tree` - the tree to be scanned
        `p` - a value to be passed to visitor methods
      Returns:
        the result returned from the main visitor method

    - #### getCurrentPath

          public DocTreePath getCurrentPath()

      Returns the current path for the node, as built up by the currently active set of scan calls.
      Returns:
        the current path