public void setValue(OgnlContext context, Object rootObject, Object value) throws OgnlException {
   Ognl.setValue(getExpression(), context, rootObject, value);
 }
 public Object getValue(OgnlContext context, Object rootObject) throws OgnlException {
   return Ognl.getValue(getExpression(), context, rootObject);
 }
 public Object evaluate(OgnlContext ctx, OgnlRootObject rootObject) throws OgnlException {
   return Ognl.getValue(getExpression(), ctx, rootObject);
 }
 public OgnlExpression(String expressionString) throws OgnlException {
   super();
   expression = Ognl.parseExpression(expressionString);
 }