Using XML-based object structures to represent data in code/at run-time

Hello,
I have quite a "high level" question which has be bothering me for some time, and I haven't found the subject tackled in any books. I believe J2SE/J2EE is not an important divide here.
Lets say I want to develop a J2SE game application with two programs: a "level designer", and a "level viewer", and I want to store the level files in an XML format.
My question, and I use this example only to try and illustrate it, is:
when coding the level designer or viewer, is it reasonable to use an XML-based object hierarchy for representing a level in code/at run-time, i.e. using the standard Java DOM APIs? Or should one (as I would have done before XML came along) develop a set of classes much closer to modelling the real form of a level, and then add a means to convert those objects to/from to XML format?
This second option of course I would use/would have used if I wasn't thinking about XML, but isn't it sometimes easier to just read in an XML file into a DOM representation and just use the data straight out of that structure, rather than go through the bother of parsing the XML into a set of unrelated objects defined by a different family of classes? What shapes your decision here? And if the second option is best, what is the easiest way of converting to/from the XML?
Thank you for any advice.
Greg

Hi Christian,
Can I ask: what about if your domain was quite 'close' to an object/DOM representation of XML?
For instance, what if a game operated by acting out a theatrical script, a spoken conversation, between two characters, perhaps somehow influenced at points by the user, and a particular level was just a different script for the characters.
One could imagine that the object representation of this would in the end be quite similar to how you'd represent XML, i.e. like a tree of nodes, where each node was a line from the script, and some nodes were a decision point where different nodes could be chosen from.
Would you still want to avoid using XML-based classes to represent the underlying 'game', or is there a point where you would 'give it' to the similarity and use existing XML structures directly?
Thank you for any advice
Greg

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generate reports.
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In the future Swing related questions should be posted in the Swing forum.
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Hi,
I have a CR Report Development environment. Please refer to workflow and requirement description below;
I have a Java application(Report Customization Tool), which allows users to dynamically select structure and content for a report.
The process goes as follows:
1. In Java Application, user first gets option to select Report Header, Page Orientation, Font etc for master report.
2. User can select a sub-report (pre-developed report frames. Not Sure about tool.) and apply the same format option (mentioned in step 1, except orientation) to it.
3. User can select individual row/data cell to be displayed on the report through reference to DB tables in sub-reports.
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Please feel free to comment in case you need more info. But I won't be able to post screenshots. NDA of course!
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I moved your post to the NET - SAP Crystal Reports forum.
To start, you have a fair bit of work ahead of you. The Crystal reports SDK will not do the job. You will have to use the InProc RAS SDK which is included in both CR XI and CR 2008. I'd recommend going with CR 2008 as CR XI R1 (11.0) is out of support now and CR XI R2 (11.5) will be out of support come June of 2011. Next, make sure you have applied SP 3 for CR 2008:
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http://service.sap.com/sap/bc/bsp/spn/bobj_download/main.htm
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https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10b840c0-623f-2b10-03b5-9d1913866b32
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/b050afe0-2fa5-2b10-658d-98f214ba6a4a
http://help.sap.com/businessobject/product_guides/boexir31/en/rassdk_net_dg_12_en.chm
Samples are here:
https://wiki.sdn.sap.com/wiki/display/BOBJ/NETRASSDK+Samples
and here:
http://www.sdn.sap.com/irj/boc/samples?rid=/webcontent/uuid/80774579-b086-2b10-db91-ed58c4dda375 [original link is broken]
I also find this 3rd party link useful:
http://book.soundonair.ru/sams/
And as always, search these forums. Lots of info here. E.g.;
Programaticaly add Table in CR database fields
InProc RAS Issue
Adding the columns dynamically in crystal report
Also, see the search box at the top right of this page. It searches blogs, wikis, Kbases, articles and more - all in one go.
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup

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Hi,
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ask for help.vi ‏132 KB

Yup, instead of all these 1D arrays, use a single 2D array. Your code could be reduce to <10% of the current size. I am sure it would fit easily on a single screen.
Also try to do some tutorial or take some courses. I realy don't think you are ready to tackle a system of this magnitude at this time.
Your code is just peppered with very poor choices. Some things you apparently haven't figured out:
index array is resizable. There is no need to create dozens of parallel instances, all wired to the same array and all with a unique index diagram constant. If you want all elements in order, the indices don't need to be wired at all.
Replace all your value property nodes with local variables. Much more efficient. Then redesign the code so you don't even need most of the local variables.
You can use built array to append elements to an existing array. Using "insert into array" is much more complicated an error prone.
It is not a good idea to have deeply stacked while loops with the innermost loop having long delays and indeterminate stop conditions. That just gums up the gears.
Learn about proper code architectures, state machines, etc.
Get rid of that gigantic, all encompassing stacked sequence. I am sure you can find a better way to reset three booleans when the code is about to stop. In fact it is typically more reasonable to set things to a defined state when the program starts to avoid problems due to accidental value changes at edit time.
Don't use hidden control/indicators as data storage and interloop communication via local variables. There are better ways.
You can wire the reminder or Q&R directly to a case structure. No need for e.g. "=0".
Don't use ambiguous labels, e.g.a boolean labeled "Dampers on or off". Nobody will be able to later figure out if TRUE corresponds to ON or OFF. Could it be that TRUE mean it is either ON or OFF and FALSE that it is in some imternediate position?
LabVIEW Champion . Do more with less code and in less time .

Using XML based output of rq*Eval() for generating graphical views

I've been trying the standard example used in training manuals of generating RandomRedDots.
(Scripts that donot involve images are working fine)
While using rqTableEval() the output format
1. using select clause (select cast(value as longvarchar(32000)) from dual)
2. 'png'
is throwing ORA-29400: data cartridge error
ORA-24333: zero iteration count
ORA-06512: at "RQSYS.RQTABLEEVALIMPL", line 7
ORA-06512: at line 4
3. 'xml' type is generating output as desired with two columns name, value.
When this xml query is used in physical table with columns - name as int, value as longvarchar(32000) as output is clob ,
the execution(view data) results as 'no data'.
Can i get help in how to utilize this xml output so that graphs can be made available in obiee dashboard ultimately.
Thanks

Hi,
R script to be executed is as follows:
begin
sys.rqScriptDrop('Example6');
sys.rqScriptCreate('Example6',
'function(n){
res<-1:10
plot( 1:n, rnorm(n), pch = 21,
bg = "red", cex = 2 )
res
end;
set long 20000
set pages 1000
select id,image
from table(rqTableEval(
cursor(select 100 n from dual),
NULL,
'PNG',
'Example6'));
ERROR message:
select id,image
ERROR at line 1:
ORA-29400: data cartridge error
ORA-24333: zero iteration count
ORA-06512: at "RQSYS.RQTABLEEVALIMPL", line 7
ORA-06512: at line 4
when tried with xml as output format since 'png' was not working
select name,value
from table(rqTableEval(
cursor(select 100 n from dual),
NULL,
'XML',
'Example6'))
there is xml output in sqlplus
NAME
VALUE
<root><R-data><vector_obj> <ROW-vector_obj><value>1</value></ROW-vector_obj><ROW
-vector_obj><value>2</value></ROW-vector_obj><ROW-vector_obj><value>3</value></R.......so on
How to utilize this output in physical layer of rpd, in table with select clause
I tried select dbms_lob.substr(value,100000,1) to convert the clob of xml to varbinary but then there is no output in sqlplus.
If the above is used as select clause for physical table it throws ORA:00904 "value" invalid identifier.
Can I please get help in getting this output in physical layer tables and eventually to presentation layer.
Have i missed something or some configuration needs to be done for acquiring the images
(ps: this is occurring for images and scripts involving number type are working fine.
I've included png and other packages in RProfile.site file)

Using XML Operation Tags to query by date

Problem 1:
When I use timestamps from items' XML to form queries on repositories, I receive SQL errors.
Problem 1 Example:
Query the PublishingRepository to find all active projects created on August 16.
In Dynamo Administration, navigate to /atg/epub/PublishingRepository
In the box labeled "Run XML Operation Tags on the Repository," enter the following tag:
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Result: java.sql.SQLDataException: ORA-01843: not a valid month
Problem 1 Solution:
Use this query instead:
<query-items item-descriptor="project">
status = "Active"
AND
creationDate = date("2013-08-16")
</query-items>
Problem 2:
Using the "<" operator to construct a less-than argument doesn't work.
Problem 2 Example:
Query the PublishingRepository to find all active projects created before August 16.
In Dynamo Administration, navigate to /atg/epub/PublishingRepository
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<query-items item-descriptor="project">
status = "Active"
AND
date("2013-08-16") > creationDate
</query-items>

Problem 1:
When I use timestamps from items' XML to form queries on repositories, I receive SQL errors.
Problem 1 Example:
Query the PublishingRepository to find all active projects created on August 16.
In Dynamo Administration, navigate to /atg/epub/PublishingRepository
In the box labeled "Run XML Operation Tags on the Repository," enter the following tag:
    <query-items item-descriptor="project">status = "Active" AND creationDate = "08/16/2013"</query-items>
Result: java.sql.SQLDataException: ORA-01843: not a valid month
Problem 1 Solution:
Use this query instead:
<query-items item-descriptor="project">
status = "Active"
AND
creationDate = date("2013-08-16")
</query-items>
Problem 2:
Using the "<" operator to construct a less-than argument doesn't work.
Problem 2 Example:
Query the PublishingRepository to find all active projects created before August 16.
In Dynamo Administration, navigate to /atg/epub/PublishingRepository
In the box labeled "Run XML Operation Tags on the Repository," enter the following tag:
    <query-items item-descriptor="project">status = "Active" AND creationDate < date("2013-08-16")</query-items>
Result: SOURCE:org.xml.sax.SAXParseException: The content of elements must consist of well-formed character data or markup.
Problem 2 Solution:
For some reason, the ">" greater-than operator seems to work fine, even when the "<" less-than operator won't. You can switch around the order of the query to get the desired result:
<query-items item-descriptor="project">
status = "Active"
AND
date("2013-08-16") > creationDate
</query-items>

Using ADF View object create method in Data Action

I need to know how to create a new row in an application module method and get the attributes from the ADF input form.
If i Drag drop the create method in the data action form it is working fine. But how to do this programmatically, I have a need where i need to execute a query on another view object and set the create method.
Thanks.

Steven:
(My application does not need to show all records and provide Edit/ Remove buttons at row level, navgational buttons and Create button for inserting new record. Instead, I would just open a blank record for entry, and commit)
As per your post, I followed the following steps (action class) to insert blank record:
DCBindingContainer bindings = actionContext.getBindingContainer();
DCControlBinding binding = bindings.findCtrlBinding("Id");
Row row = binding.getRowIterator().createRow();
row.setNewRowState(row.STATUS_INITIALIZED);
RowSetIterator rs =(RowSetIterator)
binding.getRowIterator();
rs.insertRow(row);
End Results: It works fine and a new blank record is created. The only problem is <html:errors/> in JSP throws error for the first time. I do not want to elliminate error object from JSP.
Please help!
Thanks in advance

Using XML Export to create dynamic Spry data sets

I'm following this tutorial
http://www.adobe.com/devnet/dreamweaver/articles/spry_xml_export_03.html
And the final output is like this
http://www.adobe.com/devnet/dreamweaver/articles/spry_xml_export/fig04.gif
mine just looks like this
http://76.163.23.86/export.php
i.e all the data is just printed out line after line
Any ideas?
Thanks
Hurst Vanrooj

Sorry about this I've been viewing it in SAFARI but In
Firefox it works!!!!
Bizare!
Hurst Vanrooj

Using XML parser objects

This question was posted in response to the following article: http://help.adobe.com/en_US/Director/11.5/UsingScripting/WScf09ce35f85d76b4-31c73ea211d558 551a5-7ffb.html

where is the samples XML parser & JScript ?

RD330 - using PCIe-based SSD and on-board RAID controller at the same time?

I've got a RD330 (4304-E1U) with the on-motherboard RAID controller and an OCZ Z-Drive R4 PCIe-based SSD. Basically the SSD looks to the system like a PCIe SATA controller with a single SATA disk attached. If I leave the on-board RAID disabled in the BIOS (Setup -> Advanced -> Sata/SAS Configuration -> Disable SCU Devices=ENABLED), then the system sees the OCZ drive just fine and I can select it as my boot device. Works like a champ, screaming fast.
I *also* need access to the disks attached to the built-in SAS backplane on the server, but if the on-board RAID is turned off, then you can't access those disks. When you go into the BIOS setup and turn on the on-board RAID (Setup -> Advanced -> SATA/SAS Configuration -> Disable SCU Devices=DISABLED), then the LSI RAID array configuration shows up during POST (as expected) but the OCZ messages do NOT appear during POST, and the OCZ no longer shows up in the BIOS as a boot device. It's like the SSD isn't even there when the on-board RAID is turned on.
I don't really need any RAID functionality on those disks, I just need access to them from the OS, but I need to boot from the SSD in the PCIe slot. Is there a way for both the on-board RAID controller *AND* an additional PCIe disk controller to be active at the same time?

I have had a 2.0 USB hub connected to the USP port on my AEBS for almost a year for a printer and a HD. Initially I had intermittent connectivity to the HD but never the printer. As Apple upgraded the software/firmware for the AEBS, the problems have stopped. Reliability has been 100% for several months. Go for it.
Regards,
Brian

Using XML-based object structures to represent data in code/at run-time

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