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Thread: How to create jtree which takes data from database in swing??

  1. #1
    Junior Member
    Join Date
    Aug 2011
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    Question How to create jtree which takes data from database in swing??

    I have a database table called Rubric which has records around 40,0000. This table has two column id and parent id like parent child relationship.
    I have to create a JTree using this table. example of rows :-

    ID parentID
    0 Blankl (Name Parent)
    1 0
    2 0
    3 1
    4 1
    5 3
    6 4.... onwards....

    When I fetch the data from table and create tree It takes very very long time around 4 to 10 min which can't be accepted.
    Please Advise me which approach should I follow.

    Thank you..

  2. #2
    Administrator copeg's Avatar
    Join Date
    Oct 2009
    Thanked 844 Times in 786 Posts
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    Default Re: How to create jtree which takes data from database in swing??

    Load your data lazily. Briefly, only load what needs to be loaded. Once a user expands a node, you then load its children. The following tutorial has a section on how to do this
    How to Use Trees (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)

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