Dealing with XML as database

Hello members,
My requirement is to deaI with xml totally as a database instead of taking any data base(like oracle etc..).I.e i have to deal with all the operations like update,delete, insert etc to the xml file from my java application.So that my application willl idependent from database.
I am not finding any information regarding doing update and delete operations from a java application to XML file(the information i am getting is only how to read and write into the XML file ) and i am not able implement all these stufs to my project.
If any body have any idea help me so that i can move further.
Thanks
Mahi

If you have decided to go ahead with using XML as a d/b then JAXB will be an ideal place to start, at some point you will need to convert XML to java objects and vice versa, then search for the appropriate node in the xml and do delete or update option.
If you are still pondering over - to use or not to use XML I suggets you to use simple flat files (thats what I do in my project; and it does work fine)
I store incomming & outgoing SMS in flatfiles (serialized objects). processes like insertion/deletion/update are all done by keeping the file pointer position in memory and I traverse to the exact location (using io.randomAccessFile) of the file and change the record.
You may try a similar approch in using XML where you may allocate same size for each child node in the XML and mapping each child to a File pointer position in memory and traverse to the exact child to delete/update/insert, so when you make an update - you will actually be writing to a file pointer position in the file and the XML child node will be re-written-over by a new XML data (similar to update in a d/b); when you delete a XML chile node, traverse to that File pointer position and remove it in the file, but that file pointer position remains open/active; where you can write your next record...

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my Xaml file:
<Window x:Class="WpfXmlDataBinding.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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<Window.Resources>
<DataTemplate x:Key="ProductTemplate">
<StackPanel>
<TextBlock Text="{Binding XPath=@ProductID}"/>
<TextBlock Text="{Binding XPath=Cost}"/>
<TextBlock Text="{Binding XPath=Description}"/>
<CheckBox IsChecked="{Binding XPath=HotItem}"/>
<TextBlock Text="{Binding XPath=Name}"/>
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<Grid DataContext="{Binding Source={StaticResource InventoryXmlDataStore}}">
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</Window>
All looks quite the same except the <XmlDataProvider ....> part under <Window.Resources>, which is gone completely in my Xaml file.
1, Why?
2, How many different ways to deal with xml data source through WPF?
Thanks, guys.
(ps My "WpfXmlDataBinding" runs without problem through.)

Never do yourself down Richard.
Leave that to other people.
It's quite common for smart developers to think they're not as good as they are.
I coach a fair bit and it's a surprisingly common feeling.
And to repeat.
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http://1drv.ms/1IYxl3z
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http://social.technet.microsoft.com/wiki/contents/articles/30564.wpf-uneventful-mvvm.aspx
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I can't remember if I recommended it previously to you:
https://gallery.technet.microsoft.com/WPF-Dialler-simulator-d782db17
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http://social.technet.microsoft.com/wiki/contents/articles/28209.wpf-entity-framework-mvvm-walk-through-1.aspx
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https://gallery.technet.microsoft.com/WPF-Entity-Framework-MVVM-78cdc204
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Hi all,
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<?xml version="1.0" encoding="utf-8"?>
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<?BBB?>
<?CCC?>
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Never do yourself down Richard.
Leave that to other people.
It's quite common for smart developers to think they're not as good as they are.
I coach a fair bit and it's a surprisingly common feeling.
And to repeat.
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You want to read a little mvvm theory first.
http://en.wikipedia.org/wiki/Model_View_ViewModel
Whatever you do, don't read Josh Smiths explanation. I used to recommend it but it confuses the heck out newbies. Leave that until later.
Laurent Bugnion did a great presentation at mix10. Unfortunately that doesn't seem to be working on the MS site, but I have a copy. Download and watch:
http://1drv.ms/1IYxl3z
I'm writing an article at the moment which is aimed at beginners.
http://social.technet.microsoft.com/wiki/contents/articles/30564.wpf-uneventful-mvvm.aspx
The sample is just a collection of techniques really.
I have a sample which involves no real data but is intended to illustrate some aspects of how viewmodels "do stuff" and how you use datatemplates to generate UI.
I can't remember if I recommended it previously to you:
https://gallery.technet.microsoft.com/WPF-Dialler-simulator-d782db17
And I have working samples which are aimed at illustrating line of business architecture. This is an incomplete step by step series but I think more than enough to chew on once you've done the previous stuff.
http://social.technet.microsoft.com/wiki/contents/articles/28209.wpf-entity-framework-mvvm-walk-through-1.aspx
The write up for step2 is work in progress.
https://gallery.technet.microsoft.com/WPF-Entity-Framework-MVVM-78cdc204
Hope that helps.
Recent Technet articles: Property List Editing;
Dynamic XAML

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>
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Hi Kamlesh,
Thanks for your response.
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Revision: 4804
Author: [email protected]
Date: 2009-02-02 17:56:22 -0800 (Mon, 02 Feb 2009)
Log Message:
Bugs: LCDS-548: add code to deal with contentType="application/xml" with one parameter (avoid
name/value encoding in that case)
LCDS-405: baseURL on HTTPMultiService should accept URLs which start with "/"
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http://bugs.adobe.com/jira/browse/LCDS-405
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flex/sdk/trunk/frameworks/projects/rpc/src/mx/rpc/AbstractOperation.as
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Hello,
How about this as an alternative:
Use a functional global which has 3 cases:
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I hope this helps!
Best Regards,
JLS
Best,
JLS
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Message was edited by:
user526724

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Cheers!
Message Edited by tbd on 03-23-2007 09:34 PM
Message Edited by tbd on 03-23-2007 09:35 PM
"Inside every large program is a small program struggling to get out." (attributed to Tony Hoare)
Attachments:
evt.jpg ‏7 KB

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Any ideas about memory issues regarding XSU? Should we consider to use XMLType instead of "classical" relational tables loaded/unloaded by means of XSU?
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Regards,
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