Populate a table by using Single pattern in Java -


I have created singleton design pattern in my Java program 

  private entity owner; Private string owner name; Private string owner; Private string owner address; Private Ent Chartel; Private string owner email; Private string owner; Private stable owner ing example = new owner ML (); // coosntructor to make private so that this class can not be personalized Private OwnerML () {} // Find the only public available public stable owner GetInstance () {return example; } Public int getOwnerId () {Return OwnerId; } Public Zero Set OwnID (Int Owner ID) {this.OwnerId = OwnId; }

I have used a different method to call the visual method 

  public AERLIT & lt; Owner MLA & gt; SelectNonData () {Aare list and lieutenant; Owner MLA & gt; Owner List = New Arrestist & lt; Owner ML & gt; (); Try {Connection Con = DB.connect (); String selectQ = "choose from owners"; Prepared place PS2 = con.prepareStatement (selectQ); Results set rs = ps2.executeQuery (); While (rsnext ()) {Owner MLL owner Data = OwnML.getInstance (); Owndata.setOwnerId (rs.getInt (1)); Owndata.setOwnerName (rs.getString (2)); Owndata.setOwnerNic (rs.getString (3)); Owndata.setOwnerAddress (rs.getString (4)); Owndata.setOwnerTele (rs.getInt (5)); Owndata.setOwnerEmail (rs.getString (6)); OwnerList.add (OwnerData); } Rs.close (); Ps2.close (); Con.close ();

Using the following method, I'm calling it in my interface 

  ArrayList & lt; OwnML & gt; OwnerList = New Owner (CL). Selector Data (); Object oz [] [] = new object [owner list. ()] [6]; Int x = 0; For (Owner MT: Owner List) {obj [x] [0] = TGOOONID (); Obj [x] [1] = t.getOwnerName (); Obj [x] [2] = t.getOwnerNic (); Obj [x] [3] = t.getOwnerAddress (); Obj [x] [4] = t.getOwnerTele (); Obj [x] [5] = t.getOwnerEmail (); X ++; } "", "Tele", "Email", "Date", "Email", "Date", "Name", "Name", "NEC", "Email", "Vehicle ID", "Type", "Model" , "Year", "regender"}););

The problem I am facing at this time is that it always repeats the data in the previous row if someone with me I can be very grateful if you can help.

There is a mayor blame in your design. That for owner ML square data R is considered

Every time you call OwnerML.getInstance () , the result shows the result in the OwnerList list, As a result, you can always keep a list with multiple references of the same object (singleton).

You can use singleton To be used as a data container should be forgotten (it is called Data Transfer Object (DTO). In fact, singletons are rarely useful for some (especially the exceptions: logging subsystems, operators of single hardware processing, and maybe spring-ish bean factory).

In short: OwnerML the constructor public and then change OwnML owner = data = OwnerML.getInstance (); Online with OwnML owner = data owner = new owner

>

=== edit ===

@ Anton Anton's comment was first, and it was correct I should type faster next time :)


-

Comments

Post a Comment

Popular posts from this blog

sqlite3 - UPDATE a table from the SELECT of another one -

I have the first table article where some data is missing. In the table, articles_tmp I have a part of the missing data. So I want to update the articles. Where the path path is data in articles_tmp.path where the path is not zero . With SQLite , it does not work: update article SET path = (SELECT at.path FROM Articles_tmp as AS, WHERE at.article_id = a.id and a.asp, the text is in the form and not on. It has been transmitted) where the path is null MS Access Along with, it works fine: Update Articles Join the Inner Articles at articles_tmp articles.id = articles_tmp.id SETP articles.path = articles_tmp.path Can anyone help? Sin CE SQL Server Syntax, which I provided, was not working, here this solution With whom I have come. A little modification of your original query, but with my "correlation" suggestion added. There is a SQL Bella for this: Here is the code: update article SET path = (SELECT path from articles_tmp AS T WHERE t.id
Read more

c# - Showing a SelectedItem's Property -

So I have enabled a rightclick option for my DataGrid. I want to display the only chosen property but it is not behaving like what I would like it to display my name and additional. Public category Paymentinfo {public int PaymentNo {get; Set; } Public string date {get; Set; } Public Double Pay {get; Set; } Public Double Principle {get; Set; } Public Double Interest {get; Set; } Public Double Balance {Received; Set; }} Private Zero MenuItem_OnClick (Object Sender, RoutedEventArgs e) {MessageBox.Show (AmortGrid.SelectedItem.ToString ()); } I'm trying to apply it without using a View Module! If I place a breakpoint where the messagebox and the recipient place it on selected ITEM, then this property will display the payment. A date-payment-principle-interest-balance is the only value that needs payment. Was hoping that it would be something like this MessageBox.Show (AmortGrid.SelectedItem.PaymentNo.ToString ()); When you call ToString () So you get the class typ
Read more

javascript - Render HTML after each iteration in loop -

I'm trying to gradually increase the font size of text on a web page. The code works in my place, although the new HTML / CSS does not render after every iteration of the loop and when all this is done, then display only the text of 100 px size. To see the text as if it is slowly zooming, I need to do this JavaScript is down because it is being used from a different file here is what I have ... < Pre> & lt; P class = "game-title" style = "font-size: 50px" & gt; Test & lt; / P & gt; Function sleep (milliseconds) {var start = new date (). GetTime (); For (var i = 0; i & lt; 1e7; i ++) {if ((new date). GetTime () - start) & gt; Milliseconds {break; CSS ('font-size', 'parseInt ($ (' game-title '). CSS (' font-size ')) + 1 + "pixels"); } While (parasont ($ ('# text'). Css ('font-size')) & lt; = 100) {sleep (1000); IncreaseSize (); Using CSS: Use of jQuery (sample):
Read more