if (factory==null)
factory = defaultFactory;
OMAttribute lowerAttrib = factory.createOMAttribute(
Sandesha2Constants.WSRM_COMMON.LOWER, null, Long.toString(lowerValue));
OMAttribute upperAttrib = factory.createOMAttribute(
Sandesha2Constants.WSRM_COMMON.UPPER, null, Long.toString(upperValue));
OMNamespace rmNamespace = factory.createOMNamespace(namespaceValue,Sandesha2Constants.WSRM_COMMON.NS_PREFIX_RM);
OMElement acknowledgementRangeElement = factory.createOMElement(Sandesha2Constants.WSRM_COMMON.ACK_RANGE, rmNamespace);