gistfile1.java

class DBConfig{
	
}
interface ConfigLoader{
	DBConfig loadConfig(String fileName);
}

interface DBEngine{
	void openConnnection(DBConfig input);
	void execute(List<MigrationRunner> list); //to db 
	List<MigrationRunner> executeMigration(List<Migration> list);
	void getMigrationList();
}

interface MigrationRunner{
	//table
	//void addTable(Table table){}
	//private TabelHelper new TabelHelper();
}
interface _Migration{
	void up(MigrationRunner runner  );
	void down(MigrationRunner runner );
}

interface DBOperation{
	String toSQLString();
}
interface TableHelper{
	
}
interface DBColumn{
	
}

//class Migration1 implements _Migration{
//
//	public void up(MigrationRunner runner) {
//		runner.addTable(new Table(){
//			public void doTable(TableHelper t) {
//				// TODO Auto-generated method stub
//				t.addColumn(name, type)
//			}
//		});
//	}
//	
//	public void down(MigrationRunner runner) {
//		// TODO Auto-generated method stub
//		
//	}
//
//}

//
//addTable(
//	new Table(){
//		public createTable(Helper t){
//			t.integer();
//		}
//	}
//)