Okay, I'm very new to Java so please bear with me.
I am using Netbeans 6.8 to write a small desktop application that includes a JTree
component, and my requirement is that I be able to save and load the tree structure, but that the structure allows for three items of information per tree node - The text to be displayed as the node, a unique identifier, and a file name.
Of course I would also need to be able to get all three bits of information when a node is clicked.
I have successfully saved the and loaded the tree model using getModel()
and XMLDecoder
/encoder
, but this of course only saves the default tree model.
I have followed several tutorials on creating a custom tree model but I have found them confusing, and I have been unable to transfer what they were telling me into my own project, since of course they usually create an entire example application in one go.
Assuming that a tree model like this is even possible please could someone explain how to go about creating such a model, and most importantly, how to place the model into a JTree
that already exists in the application (and how I would go about retrieving the information when a node is clicked - I can currently find the selected node and retrieve its text)
If this is not possible Id gladly hear any alternative methods that result in the same functionality.
A solution has been reached so thanks to everyone for their efforts, however the correct answer must go to Andrew for posting it first!
For those interested:
I used the Netbeans IDE to create a new Javabean
object. Once I realised the difference between this and a normal object I managed to place a newly created Javabean
object into a tree node. Just to make it all good, my original method of saving still works fine!
thanks for your efforts everyone.
MVK
The text to be displayed as the node, a unique identifier, and a file name.
Encapsualte them in a JavaBean Object
and use an appropriate renderer.