code: private String getCompareTypeName(final CompareType type) {
  		String compare = null;
  
  		switch (type) {
  			case EQUAL:
  				break;
  			case NOT_EQUAL:
  				compare = "ne";
  				break;
  			case LESS_THAN:
  				compare = "lt";
  				break;
  			case LESS_THAN_OR_EQUAL:
  				compare = "le";
  				break;
  			case GREATER_THAN:
  				compare = "gt";
  				break;
  			case GREATER_THAN_OR_EQUAL:
  				compare = "ge";
  				break;
  			case MATCH:
  				compare = "rx";
  				break;
  			default:
  				throw new SystemException("Invalid compare type: " + type);
  		}
  
  		return compare;
  	}
docs: Helper method to determine the compare type name.
  
  @param type the enumerated CompareType
  @return the name of the CompareType