Does the ODM using PL/SQL require the JVM?

Does the database need to have the the Java Virtual Machine running in order to use the ODM PL/SQL calls?
Is it true that $20k/cpu is required to use ODM?

Using ODM PL/SQL api does not require JVM installed in the database.
In 10.1 release, the installation of ODM product which included Java api and PL/SQL api requires JVM to be installed in the database. In 10.2 release, this requirement is no longer existed.
For ODM license fee questions, please contact Oracle sales staff.
Xiafang

Similar Messages

Does the jvm allocate complete max heap size initially?

Does the JVM allocate the memory for the entire max heap size up front, or does it start with the specified minimum size and increase and grab more later if needed?
The reason this is being posted is because we have a number of jboss servers that are being run. Some don't require large heap sizes, others do. If we use the same large max heap size for all would all the memory get allocated up front, or possibly a smaller initialization portion?

I have done the test with Solaris, Linux and WinXP.
Test with -Xms512M
Have written a simple java program to which the minimum heap size was set to -Xms512m then the program was executed on Solaris and WinXP platforms. The usage of memory of the Java process was 6 MB in WinXP and 9 MB in Solaris, rather than 512 MB. The JVM is not allocating the configured minimum size of 512 MB at the start of the process execution.
Reason:
If you ask the OS for 512 MB it'll say "here it is", but pages won't actually be allocated until your app actually touches them.
If the allocation is not being made initially during the start of the process, the concept of minimum heap size is not required.
But the garbage collection log shows the minimum heap size as what was configured using -Xms option.
Test with -Xms1024M
The JVM arguments was set to : -Xms1024m -Xmx1024m, but the used memory observed using Windows perfmon was 573M.
6.524: [Full GC 6.524: [Tenured: 3081K->10565K(967936K), 0.1949291 secs] 52479K->10565K(1040512K), [Perm : 12287K->12287K(12288K)], 0.1950893 secs] Reason:
Optimization is something that the operating systems do. The JVM allocates the memory in it's address space and initializes all data structures to your -Xms. In any way that the JVM can measure, the allocation from the OS is complete. But the OS doesn't physically assign a page to the app until the first store instruction. Almost all modern OSs do this.
Hope this is helpful.

In which language does the jvm program is written?

In which language does the jvm program is written?
Please give the reason for that
Thanks,
Vidyadhar

Dear Nisha,
you can use table GRACREVREJUSER with the correpsonding reasons from table GRACREJREASON and GRACREJREASONT.
Regards,
Alessandro

When does the JVM exit and deleteOnExit();?

I developed a JSP that queries a database, displays the results in a browser, and writes the results to the server as a file. While the user is viewing the JSP, they can click on a download link to save the file that was written to the server. Everything works fine!
I would like to delete the file that was written to the server (to save space), however, I can't delete the file until the user is finished viewing the JSP. I need some help concerning this method: java.io.File.deleteOnExit() the API states:
"Requests that the file or directory denoted by this abstract pathname be deleted when the virtual machine terminates. Deletion will be attempted only for normal termination of the virtual machine, as defined by the Java Language Specification (12.9)."
If I use this method, When does the JVM exit? I tested it in my home environment using Tomcat and the file was deleted when I stopped Tomcat. If I run this on a web server, does the JVM ever exit? If so when?
Thanks
--Scott

The JVM stays active so long as the Java based webserver (or the servlet engine if your webserver is connected to one) is up. Only when you shutdown your server will the VM terminate. (Similar to what you observed with tomcat)

How does the JVM handle private class parameters in a utility class?

If I have a class that is public and not labeled as static, but it's constructor is private so that it cannot be instantiated, and all of its parameters and methods are both private and static. The methods modify the private parameters. In this case, the code explicitly is avoiding a singleton pattern, so there isn't even a class being instantiated, so this is a true utility class.
However, the static methods are accessible from multiple objects, and as far as I can tell, the JVM is persisting the parameters in memory beyond the specific thread that called the static method to begin with.
The question I have is how the JVM handles this? Are these private parameters assigned memory and are indeed persisted independent of thread, since there is no class reference. I am working with byte code injection, and the assumption is that a direct reference to a static parameter is much faster to call than having to go through an object reference. Of course, from a programmer point of view, I much prefer the singleton pattern since I am so used to hang my hat on a class reference.
Thanks.

entguru wrote:
However, the static methods are accessible from multiple objects...Not if the methods are private, as you seemed to indicate ("all of its parameters and methods are both private and static").
Are these private parameters assigned memory and are indeed persisted independent of thread, since there is no class reference. There is a class reference. It refers to the class, and is obtainable via the class literal; e.g., MyClass.class.
~

How does the JVM call Windows GDI Text functions?

I need to find out how the JVM calls Windows GDI functions for Java running on Windows. I am a programmer at an imaging software company and we "hook" to client applications to extract information for searching and indexing. Basically what we do is tell the app to refresh itself and then we intercept the text output functions to the GDI. Recently, when trying to image enable an Oracle app (Sun JVM or bastard version thereof), we failed to capture any text output. None of the documented MS GDI text output functions are being called to display that text. Does anyone with an intimate knowledge of the workings of the JVM on a Windows platform know how this is accomplished. I currently have calls pending at Sun and Microsoft, but sometimes these forums have more info than they do. Thanks in advance for any help you can provide. ([email protected])
Jason Nix

I would venture to say that SUN is generating its own
text. That would be necessary in order to handle all
of the sizing and layout management issues which
happen in Java real time, as opposed to Windows once
at compile time.Not likely. Font rendering is always done at runtime and it would be generally unwise to do it yourself given the availability of TrueType fonts and the highly optimized rendering engines. I would be shocked if Sun tried to do it themselves.
Chuck

Does the JVM ever return memory back to the OS?

Hello Gurus,
I have an OC4J application running on Solaris that have some memory spikes (the jvm is inovked with -xms256m -xmx1024m).
I've noted that once the heap expands, even if it shrinks back, the jvm process keeps on using the bigger memory footprint (in other words, maybe the jvm indeed manages a smaller heap size but if I execute the "top" command from a terminal - I never see that memory actually being freed).
For the math people: my jvm memory consumption is a non-decreasing monotonic function.
Is that a bug or the designed behavior?
Thanks in advance!
Amnon Sadeh.

The physical memory and swap reservation is indeed returned
to the OS if it's not in use. The virtual space reservation, however,
stays.. The JVM is however circumspect/inertial is reacting to
temporary fluctuations in java heap footprint, and employs
a hysteretic low-pass-filter to protect against what might be
small, high frequency fluctuations in the program's heap
footprint.
Hello Gurus,
I have an OC4J application running on Solaris that
have some memory spikes (the jvm is inovked with
-xms256m -xmx1024m).
I've noted that once the heap expands, even if it
shrinks back, the jvm process keeps on using the
bigger memory footprint (in other words, maybe the
jvm indeed manages a smaller heap size but if I
execute the "top" command from a terminal - I never
see that memory actually being freed).
For the math people: my jvm memory consumption is a
non-decreasing monotonic function.
Is that a bug or the designed behavior?
Thanks in advance!
Amnon Sadeh.

How does the JVM recover from a java.lang.StackOverflowError?

As far as I know that whenever a java.lang.OutOfMemoryError is thrown, the application is in an unknown state and only a restart of the JVM can fix this. How about java.lang.StackOverflowError? If uncaught, the calling thread is terminated for sure, but the other threads? Are there side-effects?

In windows OS that thread will die and thats all.
I think that in some unix systems the whole process
is likely to fail.Not exactly. It's not nearly as dependent on the operating system as it is on the quality of the JVM implementation. StackOverflowErrors are tricky to handle correctly in all cases, but most JVMs (including Sun's) now properly handle the vast majority of them. FWIW, most unix-based or unix-like operating systems make it somewhat easier to deal with StackOverflowError than Windows, particularly Windows versions prior to Win2K.
A thread that triggers a StackOverflowError can actually catch it and recover; the important thing to note is that if you want to keep executing code on that thread, you have to allow many or most of the activations (i.e., function calls) on the stack to be unwound. Otherwise, you'll quickly provoke another StackOverflowError since you will still be close to the end of the stack.

When does the JVM exit ?

I am curious as to what could be the reasons when the JVM exits.Googling didn't give me much relevant links (my bad,may be !!).
However the JLS states :
A program terminates all its activity and exits when one of two things happens:
1. All the threads that are not daemon threads terminate.
2. Some thread invokes the exit method of class Runtime or class System and the exit operation is not forbidden by the security manager.
Now,Are there any other reasons apart from the above that may result in a JVM to exit ? I would appreciate any pointers.
Thank you for your consideration.
Edited by: punter on Jan 4, 2010 4:14 AM

Well, you already found the "normal" ways of exiting the JVM.
punter wrote:
Now,Are there any other reasons apart from the above that may result in a JVM to exit ? I would appreciate any pointers.It can also halt unexpectedly: crashing. By the very nature of crashes it's hard to define how exactly they happen. But they can happen.
I assume that you could also call exit() (the C function) from native code, the JVM probably couldn't do much about that.

How does the jvm handle drawing images outside an applet window?

I have a question about an applet I want to optimize.
Essentially the applet allows the user to scroll through a large map while viewing only a small portion of the map through the applet window.
The map has a large array of circles with coordinates on the map that are drawn in their appropriate place in the applet window when the user scrolls the map.
As it stands, the paint method loops through every circle in the array to draw them, but most of them are not visible in the window and end up getting drawn in a negative coordinate or a very large coordinate.
My question is are these circles that are not seen in the applet window but are still calling drawCircle in the paint method putting a strain on the computer's graphics card?
Would it be better if I looped through all circles and only called the drawCircle method on circles whose coordinates would be visible? Or would the extra step of checking each circle's coordinates before drawing be not worth as efficient?
Any help would be appreciated.

If the amount of stuff being rendered outside of the clip rectangle is small then it's usually not worth it to attempt to figure out what's being clipped and not draw it. If the clip rectangle represents only a small portion of the entire canvas that can be drawn, however, it's usually worthwhile to put in some logic to only draw what is necessary.
Take JTextArea, for example. It could be displaying a text document thousands of lines long. Instead of rendering every line of text on every repaint operation, it contains the following logic:
1. Get the current clip bounds (i.e. what part of the text area is "dirty" and must be repainted).
2. Figure out what lines are displayed in the clip bounds. Some lines may be only partially visible (a line "halfway" scrolled down), but they need to be repainted too. If word wrap is disabled this is a very quick and cheap operation, but if word wrap is enabled, it's a little more complex.
3. Only repaint those lines.
This way, in the best-case scenario JTextArea only repaints a single line (the line the user is typing in). Worst case, it repaints the number of lines that can fit on the screen. But it never repaints too much.
Anyway, I guess my advice would be: If it's cheap and easy to determine if something is out of the clip bounds, do it. If it's difficult to determine, do it only if you have a noticeable performance issue in your rendering code.

Does Exchange Server 2003 use M$SQL Server?

Hi All,
I have a new customer with SBS 2003 running as an Exchange Server. He have four workstations and one server. He is also running M$SQL Server 2005. Does Exchange Server use M$SQL Server? (Need to know for backup considerations.)
Many thanks,-T

No problem. Check if you have SQL management studio installed on the computer and open it up,to see what db are in there.
Regards,
Denis Cooper
MCITP EA - MCT
Help keep the forums tidy, if this has helped please mark it as an answer
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Multi CPU and the JVM

Hi:
This question might very simple.
If my platform has two or more CPU like a Solaris system. Does the JVM take
advantage of these extra CPU ?
Cheers
David L. Wasler
[email protected]
860-927-8310

Yes.
"David L. Wasler" wrote:
>
Hi:
This question might very simple.
If my platform has two or more CPU like a Solaris system. Does the JVM take
advantage of these extra CPU ?
Cheers
David L. Wasler
[email protected]
860-927-8310--
Thanks,
Michael
-- BEA WebLogic is hiring!
Check our website: http://www.bea.com/

SQL ENTERPRISE: The edition of Reporting Services that you are using requires that you use local SQL Server relational databases for report data sources and the report server database

The error below makes absolutely no sense! I'm using Enterprise Core...yet I'm being told I can't use remote data sources:
w3wp!library!8!03/05/2015-19:08:48:: i INFO: Catalog SQL Server Edition = EnterpriseCore
w3wp!library!8!03/05/2015-19:08:48:: e ERROR: Throwing Microsoft.ReportingServices.Diagnostics.Utilities.OperationNotSupportedException: , Microsoft.ReportingServices.Diagnostics.Utilities.OperationNotSupportedException: The feature: "The edition of Reporting
Services that you are using requires that you use local SQL Server relational databases for report data sources and the report server database." is not supported in this edition of Reporting Services.;
Really? This totally contradicts the documentation found here:
https://msdn.microsoft.com/en-us/library/ms157285(v=sql.110).aspx
That article says remote connections are completely supported.
ARGH! Why does this have to be so difficult to setup?!?

Hi jeffoliver1000,
According to your description, you are using Enterprise Core edition and you are prompted that you can’t use remote data sources.
In your scenario, we neither ignore your point nor be doubt with what you say. But actually we have met the case before that even though the SQL Server engine is Enterprise but the reporting services is still standard. So I would recommend you to find the
actual edition of reporting services you are using. You can find Reporting Services starting SKU in the Reporting Service logs ( default location: C:\Program Files\Microsoft SQL Server\<instance name>\Reporting Services\LogFiles). For more information,
please refer to the similar thread below:
https://social.technet.microsoft.com/Forums/en-US/f98c2f3e-1a30-4993-ab41-acbc5014f92e/data-driven-subscription-button-not-displayed?forum=sqlreportingservices
By the way, have you installed the other SQL Server edition before?
Best regards,
Qiuyun Yu
Qiuyun Yu
TechNet Community Support

Urgent HELP required on forming the Matrix of data using PL/SQL

Hi All,
I'm new to this thread and require your urgent help in this regard.
I've got a requirement for building a 5000 X 5000 matrix using PL/SQL. My original data tables have 5000 rows each and I need to do a correlation analysis using this data and need to store in a physical table and not in-memory. Is this feat achievable using mere PL/SQL? I understand that Oracle DB has a limitation of 1000 columns(but not sure) and hence I'd like to know whether there is any work-around for such scenarios. If not, what are the other alternative method(s) to achieve this feat? Do I need to use any 3rd party tools to get this done? An early reply from the experts is highly appreciated.
Thanking you all Gurus in advance.
Rgds
Sai

Welcome to OTN!
I'll get to your quesiton in a moment, but first some welcome information. Many OTN posters consider it impolite to mark threads as "urgent". We are volunteers and have jobs of our own to do without people we don't know making demands. You are brand new and deserve some patience but please understand this. It is very likely before I finish this post someone will complain about the word "urgent" in your subject.
On to more interesting things :)
You can do the matrix, but are out of luck with a 5000 x 5000 table because Oracle only allows 1000 columns per table. There are ways to work around this.
How do do the matrix depends on what you want to do. You can do this different ways. You can create a table beforehand and use PL/SQL or simple SQL to populate it, or use the CREATE TABLE AS syntax to create and populate it in one step if you can get the underlying SQL to work the way you want, something like
create table my_table as
select a.*, b.*
from table1 a, table2 bcan populate a matrix from 2 tables with an intentional cartesian join (the WHERE clause was left out intentionally, provided your data is already in the data base.
If not you can use a PL/SQL routine to populate the data.
There are a couple of ways to solve the 1000 column limit. The easiest way might be to have 5 collections of 1000 columns each. A more complicated but more elegant soltion would be to have nested collections, allowing 2 colliections that you can loop through - a collection of collections. Nested collections can be hard to work with. A third way would be to use nested tables in the database but I personally do not like them and the insert, update, and delete statements for nested tables are hard to use.
I'm not going to give a code example because I am not sure which solution is best for you. If you have further questions post them.

Please help i am going off my mind when i connect my iphone 4 to my mac it tells me it can not be used because it requires 10.6.3 or later my mac is operating on 10.6.8 and my itunes is 10 .5 yet the iphone does not even show up in devices please help

please help i am going off my mind since i updated my iphone 4 when i go to sync it tells me it can not be used as it requires 10.6.3 or higher
my mac is running on 10.6.8 and i upgraded my itunes to 10.5 everything seems to be in place but the phone is not even being recognised in
devices although it does come up in iphoto if anybody can help i would be very grateful.

You have answered your own question:
"requires 10.6.3 or higher"
" i upgraded my itunes to 10.5 "
You need itunes 10.6.3 or later.

Does the ODM using PL/SQL require the JVM?

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