expressionStringBuilder.append(c);
predicateComponentBuilder.append(c);
}
attribute = predicateComponentBuilder.toString().trim();
ExpressionPredicateOperator expressionPredicateOperator = null;
if(target.peek() == RIGHT_PARENTHESIS) {
expressionStringBuilder.append((char) target.read());
expressionPredicateOperator = ExpressionPredicateOperator.NOT_NULL;
} else if(target.peek() == EQUAL) {
expressionStringBuilder.append((char) target.read());