package com.vci.server.query.refquery.objects;

public class Sequence {
	private String current = "a_0";

	public Sequence(String first) {
		this.current = first;
	}

	public String getNextSequence() {
		char first = current.toCharArray()[0];
		char second = current.toCharArray()[2];
		int b = (int) second;
		int a = (int) first;
		b++;
		if (b == 58) {
			b = 48;
			a++;
			if (a == 123) {
				a = 97;
			}
			first = (char) a;
		}
		second = (char) b;
		StringBuffer s = new StringBuffer();
		s.append(first);
		s.append("_");
		s.append(second);
		current = s.toString();
		return current;
	}
	
	public void setSequence(String seq) {
		this.current = seq;
	}
	
	
	public String getSequence() {
		return this.current;
	}
}