import java.util.*;
  
  String event = arg("workerEvent");
  
  if ( event == "init" || event == "done")
  {
    return;
  }
  
  WindowContext context = argObj("windowContext");
  Worker worker = argObj("worker");
  String dbName = arg("dbName");
  Toolbar tb = context.get("/mainTabs/Database/toolbar");
  Text banner = context.get("/mainTabs/Database/toolbar/banner");
  Table table = context.get("/mainTabs/Database/table");
  Panel tab = context.get("/mainTabs/Database");
  boolean setRefresh = false;
  
  if (event == "longRunningTask" || event == "alreadyRunning" )
  {
    if ( worker.isDone() && event == "longRunningTask" )
      return;
    
    if ( dbName.equals((String)context.get("currentDB")))
    {
      banner.setText("Database " + dbName + ": (loading)");
      banner = context.get("/mainTabs/Query/toolbar/banner");
      banner.setText("SQL query on database: " + dbName);
      table.clear();
      tb.updateUI();
    }
  }
  else if (event == "cancelled")
  {
    DB db = worker.getProperty("db");
    
    if ( db != null )
      db.cancel();

    if (dbName.equals((String)context.get("currentDB")) )
    {
      banner.setText("Database " + dbName + ": (load canceled)");
      setRefresh = true;
    }
  }    
  else if (event == "backgroundTask")
  {
    DB db = new SQLLoggingDB((SQLLoggingDB)context.get("db"));

    worker.setProperty("db", db);
    worker.setProperty("waitOperation", "show table status from `" + dbName + "`");
    
    DB.Result databases = db.execute("show table status from `" + dbName + "`");
    
    /*try
    {
      Thread.sleep(10000);
    } catch (Exception e) {}*/

    publish(databases);
   
  }
  else if (event == "update")
  {   
    DB.Result databases = (DB.Result)((List)argObj("taskResult")).get(0);
      
    if ( dbName.equals((String)context.get("currentDB")))
    {
      banner.setText("Database " + dbName + ": " + databases.size() + " table(s)");
      TableUtils.populate(table, databases);
      setRefresh = true;
    }
  }
  
  if ( setRefresh )
  {
     tab.setProperty("refreshScript", "showTableStatusMySQLWorker");
     tab.setProperty("refreshArgs", args());
  }