Package org.apache.commons.jxpath.ri.compiler

Class VariableReference

  • public class VariableReference
extends Expression
    An element of the compile tree holding a variable reference.
    Version:
    $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $

    • Field Detail

      • varName

        private QName varName

    • Constructor Detail

      • VariableReference

        public VariableReference​(QName varName)
        Create a new VariableReference.
        Parameters:
        varName - variable name

    • Method Detail

      • getVariableName

        public QName getVariableName()
        Get the variable name.
        Returns:
        QName

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • isContextDependent

        public boolean isContextDependent()
        Description copied from class: Expression
        Returns true if this expression should be re-evaluated each time the current position in the context changes.
        Overrides:
        isContextDependent in class Expression
        Returns:
        boolean

      • computeContextDependent

        public boolean computeContextDependent()
        Description copied from class: Expression
        Implemented by subclasses and result is cached by isContextDependent()
        Specified by:
        computeContextDependent in class Expression
        Returns:
        calculated context-dependentness as boolean

      • compute

        public java.lang.Object compute​(EvalContext context)
        Description copied from class: Expression
        Evaluates the expression. If the result is a node set, returns the first element of the node set.
        Specified by:
        compute in class Expression
        Parameters:
        context - evaluation context
        Returns:
        Object

      • computeValue

        public java.lang.Object computeValue​(EvalContext context)
        Returns the value of the variable.
        Specified by:
        computeValue in class Expression
        Parameters:
        context - EvalContext against which to compute the variable's value.
        Returns:
        Object