package com.mandi.fendan.util;

public class DBchecksingleton {
	
	private volatile static String dbc;
	
	private DBchecksingleton(){
		
	}
	
	public static String setDbc(String dbcUUID,boolean delBdc){
        synchronized (DBchecksingleton.class){
            if(dbc==null){
            	if(!delBdc){
            		dbc=dbcUUID;
            	}
        	}else{
        		if(delBdc){
        			if(dbc.equals(dbcUUID)){
        				dbc=null;
        			}
        		}
        	}
        }
        return dbc;
    }
}