org.apache.xalan.templates

## Class AbsPathChecker

- java.lang.Object
- - org.apache.xpath.XPathVisitor
  - - org.apache.xalan.templates.AbsPathChecker

-     public class AbsPathChecker
      extends XPathVisitor

  This class runs over a path expression that is assumed to be absolute, and checks for variables and the like that may make it context dependent.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `AbsPathChecker()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `checkAbsolute(LocPathIterator path)` Process the LocPathIterator to see if it contains variables or functions that may make it context dependent.
    `boolean` | `visitFunction(ExpressionOwner owner, Function func)` Visit a function.
    `boolean` | `visitVariableRef(ExpressionOwner owner, Variable var)` Visit a variable reference.

    - ### Methods inherited from class org.apache.xpath.XPathVisitor

      `visitBinaryOperation, visitLocationPath, visitMatchPattern, visitNumberLiteral, visitPredicate, visitStep, visitStringLiteral, visitUnaryOperation, visitUnionPath, visitUnionPattern`

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### AbsPathChecker

          public AbsPathChecker()

  - ### Method Detail

    - #### checkAbsolute

          public boolean checkAbsolute(LocPathIterator path)

      Process the LocPathIterator to see if it contains variables or functions that may make it context dependent.
      Parameters:
        `path` - LocPathIterator that is assumed to be absolute, but needs checking.
      Returns:
        true if the path is confirmed to be absolute, false if it may contain context dependencies.

    - #### visitFunction

          public boolean visitFunction(ExpressionOwner owner,
                              Function func)

      Visit a function.
      Overrides:
        `visitFunction` in class `XPathVisitor`
      Parameters:
        `owner` - The owner of the expression, to which the expression can be reset if rewriting takes place.
        `func` - The function reference object.
      Returns:
        true if the sub expressions should be traversed.

    - #### visitVariableRef

          public boolean visitVariableRef(ExpressionOwner owner,
                                 Variable var)

      Visit a variable reference.
      Overrides:
        `visitVariableRef` in class `XPathVisitor`
      Parameters:
        `owner` - The owner of the expression, to which the expression can be reset if rewriting takes place.
        `var` - The variable reference object.
      Returns:
        true if the sub expressions should be traversed.

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