} else if ("unsignedInt".equals(attributeType)) {
returnObject = new UnsignedInt(attribValue);
} else if ("unsignedShort".equals(attributeType)) {
returnObject = new UnsignedShort(attribValue);
} else if ("unsignedByte".equals(attributeType)) {
returnObject = new UnsignedByte(attribValue);
} else if ("positiveInteger".equals(attributeType)) {
returnObject = new PositiveInteger(attribValue);
} else if ("negativeInteger".equals(attributeType)) {
returnObject = new NegativeInteger(attribValue);
} else if ("nonNegativeInteger".equals(attributeType)) {