Examples with ExtensionsProvider org.apache.xpath.ExtensionsProvider used on opensource projects

Example 6 with ExtensionsProvider

use of org.apache.xpath.ExtensionsProvider in project robovm by robovm.

the class FuncExtFunction method execute.

/**
   * Execute the function.  The function must return
   * a valid object.
   * @param xctxt The current execution context.
   * @return A valid XObject.
   *
   * @throws javax.xml.transform.TransformerException
   */
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException {
    if (xctxt.isSecureProcessing())
        throw new javax.xml.transform.TransformerException(XPATHMessages.createXPATHMessage(XPATHErrorResources.ER_EXTENSION_FUNCTION_CANNOT_BE_INVOKED, new Object[] { toString() }));
    XObject result;
    Vector argVec = new Vector();
    int nArgs = m_argVec.size();
    for (int i = 0; i < nArgs; i++) {
        Expression arg = (Expression) m_argVec.elementAt(i);
        XObject xobj = arg.execute(xctxt);
        /*
       * Should cache the arguments for func:function
       */
        xobj.allowDetachToRelease(false);
        argVec.addElement(xobj);
    }
    //dml
    ExtensionsProvider extProvider = (ExtensionsProvider) xctxt.getOwnerObject();
    Object val = extProvider.extFunction(this, argVec);
    if (null != val) {
        result = XObject.create(val, xctxt);
    } else {
        result = new XNull();
    }
    return result;
}