Java to Native DND Inefficient By Design?

Unless I misunderstand things. It seems that any time I want a Swing object to be droppable on the native system I need to prepackage that object upon any drag into all the possible native forms. I just want to say that this totally sucks.
Shouldn't there be more negotiation between the native system and Java?
The scenario I envision is you begin a drag with an object, upon a drop with the native system, java tells the native drop target all available flavors, then the native drop target tells java the chosen flavor, then java actually packages the object into a transferable and releases it to the transfer handler of the native system.
This is so frusterating. I'm not really sure what to do. Except not include java to native DND.
Do the people out there today agree with me?

Like you aren't thinking this through. I can't even think of what a Timer would do in this case.
You cant use Timers to set off events because the drop event belongs to the Native System. The native system has to do things once the drop occurs. A timer can't come along later and say generate a native event. It doesn't make sense.

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I am a new developer in Java server pages. I want to use layout managers available in java swing classes to design the page. Can any body suggest me a way to do this.Is it possible if I do it with servelets.

So, you want to use layout managers within your JSPs?
The immediate answer is that "it isn't a good idea". The more considered answer is "tell us what you're up to".
Are you coding all presentation within a traditional JSP? That is, HTML, customer or library tags and/java scriptlets?
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How to root out memory leak with Java JNI & Native BDB 11g ?

We are testing a web application using the 32-bit compiled native 11g version of BDB (with replication) under 32-bit IBM 1.5 JVM via JNI under 64-bit RedHat Linux. We are experiencing what appears to be a memory leak without a commensurate increase in Java heap size. Basically the process size continues to grow until the max 32-process size is reached (4Gb) and eventually stops running (no core). Java heap is set to 2Gb min/max. GCs are nominal, so the leak appears to be native and outside Java bytecode.
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That's troublesome... DB itself doesn't have stats that track VM in any useful way. I am not familiar with SystemTap but a quick look at it seems to imply that it's better for kernel monitoring than user space. It's pretty hard to get DB to leak significant amounts of memory. The reason is that it mostly uses shared memory carved from the environment. Also if you are neglecting to close or delete some object DB generally complains about it somewhere.
I don't see how pmap would help if it's a heap leak but maybe I'm missing something.
One way to rule DB out is to replace its internal memory allocation functions with your own that are instrumented to track how much VM has been allocated (and freed). This is very easy to do using the interfaces:
db_env_set_func_malloc()
db_env_set_func_free()
These are global to your process and your functions will be used where DB would otherwise call malloc() and free(). How you get usage information out of the system is an exercise left to the reader :-) If it turns out DB is the culprit then there is more thinking to do to isolate the problem.
Other ideas that can provide information if not actual smoking guns:
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Regards,
George

Java iView Runtime Error in BEx Designer

Hi,
Through analyzer, Query is working absolutely fine
When trying to run a query via the query designer I get the two messages :
1.In development
Java iView Runtime
copyright 2002 SAP AG.All rights reserved.
An exception occured while processing your request.
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Hi,
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From your reply, I have some doubts.
You mentioned that you reduced the no of info objects in the rows in query definition and the problem got solved.
1.Did you check that for the some queries which were already containing less no.of rows, it did not show this error.
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Connect Java to native terminal (Solaris specifically)

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Calling my processes using Runtime.exec does not always work because the processes usually know it is not a terminal.
Is there a way in Java to call a child as if through the terminal, or is there a way in Solaris to call a middle man process that calls the next child as if through the terminal?

gimbal2 wrote:
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Start your adventures by reading the four pages of this article carefully:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html
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What I really want is to make these processes think they are in a terminal. I am not too particular with window height/width and don't care much about underlines/bold/blink/strike/colors. (of course better to have these than to not :) )
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How to ivoke Java within native window

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DrClap wrote:
derekn wrote:
Thanks Chuck!
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Hi thirumurugan
The following link will solve your problem..
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c01e9b01-abab-2d10-6687-96fc7bc39084?quicklink=index&overridelayout=true
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hmmm aiight. my code is somewhat confusing...wud anyone mind telling me how they wud do it? neway here's my code:
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[Java and all else] How do you document DB design?

Hello,
Although most of the technical choices are explicit in SQL (UniqueKey & ForeignKey constraints, indexes,...), the semantics of the data columns and their constraints seem better served as plain human-readable comments ("ID column: identifies the plane copy; 6 figures are enough as we don't expect to sell more than 1 million planes in a foreseeable future...").
In my current system, (EJB-based, but the DB schema is not created by the JPA-compliant ORM, but via SQL scripts), I see the following ways to write and maintain this documentation:
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- UML notes in UML diagrams(1)
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Our current situation is that most of the project team members are Java developers, so it would probably be better accepted and served if we standardized that we document DB tables and columns in Java source, but I am worried that:
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- this may not cover all design choices of the DB schema:
- - - - first, although that is the case currently, in the future there might not be a 100% 1-1 mapping between e.g. each entity class and a DB table. Maybe some columns will not need to be mapped anymore,...
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Do you have specific advices for my case?
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(1) Just for the record, here are a few posts that refer to modelling the DB in UML:
[A post on this forum highlighting that UML 1.4 standardizes a notation for RDB modelling|http://forums.sun.com/thread.jspa?messageID=1383724#1383724]
[A DB modelling tutorial|http://www.tomjewett.com/dbdesign/dbdesign.php] (not sure whether it leverages the standard mentioned above :o)
P.S.: "Java and all else" as in, damn, I'd love to use the familiar JDC forums and people to discuss not only Java-related issues, but also [all other things that surround Java|http://forums.sun.com/thread.jspa?threadID=5422264&tstart=0] (other technologies, processes, people) and enable to make workable systems out of Java code.

jduprez wrote:
Thank you again.
A couple more questions:
2. Table, and proc dictionary maintained as one or more text files. Those files and schema are all in source control.Do you mean, a proprietary text format (a la tabledesign.txt), or +.sql+ source files? Again, you seem to suggest the scehma info is present in two locations.I didn't say two locations unless you meant files. Then yes.Yes I meant two files. I trust the team to get the doc file lagging a few revisions behind the SQL file, and to correct that I would have to include one more step in the review process (e.g. "review CM actions to check that the doc file is updated consistently with the SQL source").
The tool I wrote would throw errors if the comment file didn't match the schema. And if comments were not provided. That of course doesn't stop someone from documenting a table with "a table".
You can of course keep the addtional info as special comments in the SQL, but when I did this, and even in retrospect, it seems better and perhaps easier to keep them seperate. I have done special comments in SQL before and it seems a bit of a kluge but you do have the single source. But in that case I was the only one maintaining it too.What do you mean by "special"?For code generation I have a schema file with the following (pseudo sql.)
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The above comment is used to provide an additional query where the proc is named 'for_a_query' (munged with table name) and takes two parameters (column_foo, column_fum) whose type/name matches those of the table.
If we don't try to generate a browseable HTML out of the schema (although the idea is appealing, I don't have the resource to make such a tool), do you see anything kludgy in maintaining SQL comments interpersed within DDL code?
Of course that is doable.

How to design a custom browser using Java?

Hi,
Which of the Java APIs (packages) we have to use to design a custom browser?
thanking you,

R6i wrote:
Hi,
I will agree with your words jverd.
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thank you.You're totally missing the point.
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Which subjects should I study in college?

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Hi,
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Hi,
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August

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--Cheers :)

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Java to Native DND Inefficient By Design?

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