SQLiteJob<Object> job = this.currConnection.execute(new SQLiteJob<Object>() {
@Override
protected Object job(SQLiteConnection connection) throws Throwable {
SQLiteStatement currStatement = null;
currStatement = connection.prepare("BEGIN;");
currStatement.stepThrough();
currStatement.dispose();
//add graph--------------------------
StringBuffer request = new StringBuffer(10*1024);
request.append("insert into subgraph values(");
request.append(ssg.getStorableId());