Example usage for org.apache.commons.jxpath Variables undeclareVariable

Introduction

In this page you can find the example usage for org.apache.commons.jxpath Variables undeclareVariable.

Prototype

void undeclareVariable(String varName);

Source Link

Document

Removes an existing variable.

Usage

From source file:org.chiba.xml.xforms.xpath.CoreExtensionFunctions.java

/**
 * Undeclares the specified variable an returns its value.
 *
 * @param expressionContext the expression context.
 * @param name the name of the variable.
 * @return the value of the variable.//from   w w w  . jav a  2  s . c  o m
 */
public static Object undeclare(ExpressionContext expressionContext, String name) {
    Variables variables = expressionContext.getJXPathContext().getVariables();
    Object value = variables.getVariable(name);
    variables.undeclareVariable(name);

    return value;
}

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