Simple question concerning "persisting JTable data?"

Hi fellow bloggers,
I couldn't find this info in the Sun JTable tutorial. The tutorial explains how to update a cell in a JTable, but it doesn't suggest a method for persisting the "row" once it has been modified. Furthermore, the JTable tutorial states the following in the leading summary:
"JTable does not contain or cache data; it is simply a view of your data."
Does this mean that the data structure which is used to populate the JTable must be updated on a row by row basis, as well as updating the JTable itself? Isn't there some way to select a row on the JTable, update the row of data, and then port the data in a row of cells to a completely separate data structure?
Thanks.

If you want your data cached or persistent, you do that in the TableModel. DefaultTableModel will already be persistent. What they mean in that quote is that whenever the JTable needs a value for cell it queries the TableModel for the value.
I'm not sure why you want/need/care to port the data in a completely separate data structure, but sure... you can do that. Create a class and feed the data into it however you please, that'll be that.

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Simple question - How to find date

Hi Experts,
I have a simple question on date. Suppose today is Jan 4, 2010. I have to find out Jan 1, 2007 using Java code.
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Simple question concerning internal harddisk replacement

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Questions concerning ST Simple Transformations

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Simple Question: How to search for a date value in SELECT

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If you want to avoid the conversion part(to_date) you will need to specify the date in the format as ur nls date format.so the same query might not work if you change ur nls date format.
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Hi,
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Help with simple question.......

This is a simple question but i can't seem to figure it out.
For example i am using this code...
feel free to run this code...
When you run this you see the scrollbars with the Swing look (Bars look so nice)...
I am using this same type of code in my other project with JBuilder 7 and I am getting the plain look of the scrollbars.
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=======================================================
import javax.swing.JTable;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
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"Sport",
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public void windowClosing(WindowEvent e) {
System.exit(0);
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any help will get DUKE $$$$$$$$$$$$$$$$

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Hello,
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Regards,
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chrissy

Is there a simple way to retrieve the data from a resultset using JavaBean?

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Is there a simple way to retrieve the data from a result set ?
thanks in advance-
kg

Well, it is not really simple. But there are Open Source components to simplify it for you. See e.g http://www.must.de/Jacompe.htm - de.must.dataobj.DataObject and its subclasses. Feel free to contact me if you have any questions: [email protected]

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Hi!
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Thanks!
Is there an example code for me to look at? (didnt see much on Google so far)

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I have the origina iPhone.
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My four wheel drive club has a web site with a large photo section. I was standing out in the middle of parking lot in San Jose, Ca and showing a friend some photos. It opens up a page of small picts to choose from. Select a print and it enlarges, He was amazed at how fast they appeard. Especially given the quantity of photos.

A very very very simple question

Hi guys,
I have a very simple question and standard but I cant find anywhere...
I have two dateTime variables, i need to calculate difference between this dates in days, thats it.
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(dataVencimento.getTime() - dataReferencia.getTime()) / 86400000L)
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Hi Jose
Just see if these alternate approaches works. I know there may be lot like this and you may be lucky to find out simple out of box solution itself. If you want to solve this issue and move ahead, gives these approaches a shot.
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I have not given solution to your problem, but may be these directions can help you move ahead. Or something along these lines.
Thanks
Ravi Jegga

Tomcat 5.0.25 persisting session data by default ?!?

This is, I imagine, a dumb question, but I can't quite figure out what is happening by looking at past postings.
When I start Tomcat I get an error : "IOException while loading persisted sessions" because some classes we use are not serializable. That makes sense - we didn't design them to be serialized.
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Thanks in advance for any help you can give !!
ethan

Well, thanks ... I have been there actually, but it only tells me how to set up the 'Experimental" Persistent Manager and not how to turn this off. Here is an interesting blurb from that site :
<<<<<
Whenver Catalina is shut down normally and restarted, or when an application reload is triggered, the standard Manager implementation will attempt to serialize all currently active sessions to a disk file located via the pathname attribute. All such saved sessions will then be deserialized and activated (assuming they have not expired in the mean time) when the application reload is completed.
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>>>>>>>
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<<<<<<
<Context path="/myApp" reloadable="true" docBase="myApp" workDir="C:\myApp\\work\org\apache\jsp" >
<Manager className="org.apache.catalina.session.PersistentManager" saveOnRestart="false"/>
</Context>
>>>>>>
which tells Tomcat to use the Persistent Manager for my app and then ... tells it not to store session data. And this seems to work ... at least the error messages go away. Now, though, I get a new and different error message :
<<<<<<
SEVERE: no store configured, persistence disabled
>>>>>>
So I am still doing something wrong ... I think ... and still looking for help ... B-)
Thanks again, black_lotus ... maybe we'll learn about this together ;-)

Simple question concerning "persisting JTable data?"

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