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POSame dataset, two different JTables
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  1. POSame dataset, two different JTables
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    copied!<p>I have some data I have to show through two JTables; the data is the same, but each table will have to show it a little differently. Also, I receive the data from an external connection (JMS in this case, but it doesn't really matter, it could be a DB, or whatever).</p> <p>Being that I am new to Swing, I am still a little confused about who should fire the events, who should listen to them and how to make so that for a modification to my dataset I will have both the tables to update.</p> <p>Now, a little example of my dataset structure as well as some dummy data:</p> <pre><code>class Student{ String name; Classroom classroom; boolean goodStudent} class Classroom{ Sting name; List&lt;String&gt; coursesTaught; List&lt;Student&gt; students;} public List&lt;Classroom&gt; classes; </code></pre> <p>Basically, my dataset will be the <code>classes</code> field in a Controller class and the two JTables will have to show things in different ways. Namely, Table1 will have to show something like:</p> <pre><code>Classroom Name | Courses 4a | CS101, CS102, CS103 4b | BM101, CS102 4c | I101, CS4100 </code></pre> <p>So basically, for each Classroom, the list of courses.</p> <p>Table2 should instead show things like:</p> <pre><code>Student Name | Good? Mark Spencer | true Philippe Mann | true Tom Sayer | false </code></pre> <p>I should see ALL the students, from all classrooms.</p> <p>As you can see, the data is the same, but it is shown in different way. What I would like to do is that, when my data changes, the tables will automatically update too. For what I understood so far, I will have to subclass AbstractTableModel and create two different TableModels for the kind of data I want to show; what I don't get is:</p> <ul> <li>How will the Models get their data, once some change happens?</li> <li>Who should notify the models of this change?</li> <li>Is it enough to call "fireTableXXXEvent()" to trigger the view refresh?</li> </ul> <p>I hope I made myself clear enough... In any case, thank you very much! Bye</p>
 

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