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Saturday, 25 August 2007
|
| Rounded corners Tуth Jуzsef 10:50:05 |
| | Hi,
I'm using PdfPTable in the page header with border:
header.getDefaultCell().setBorderWidth(1);
header.getDefaultCell().setBorder(15);
Is it possible to make rounded corners arround the header?
Joe
|
| |  7 answers | Add comment |
Thursday, 23 August 2007
|
| Shared memory IPC using NIO memory-mapped files -- anyone done this? Brian Maso 19:54:25 |
| | Java NIO supports memory-mapped files, which has the cool ability to
allow multiple apps to share the same array of data if they all map
the same file in to their respective address spaces.
I've wondered about using memory-mapped files for inter-process
communication for a while. Someone I know is asking me whether or not
this is good to use for high-performance communication between Java
and C++ -- basically sharing fixed-length records between Java and a
C/C++ program in a producer/consumer sort of system.
It seems like memory-mapped files would be ideal for sharing data
like this. A Java app could extract data from some source and put it
in to a MappedByteBuffer, which would immediately be visible to any
other app on the same box that has mapped the same file. However, I
can't figure out how the Java process would "signal" the external
app, indicating that a new record is available for consumption, or
alternatively how an external app would signal the Java app to tell
it to write out a new record to the shared memory space.
Anyone familiar with shared memory inter-process communication out
there who can give me a hint? Google and the regular sources aren't
revealing anything to me this morning.
Brian Maso
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| | 9 answers | Add comment |
|
| Special characters Stephanie Born 19:20:34 |
| | Hi Everybody!
How can I do to put special characters (Example: ь,д,ц,Я....) when I create
a PDF-file with iText?
Thanks
|
| | 26 answers | Add comment |
|
| GC error Avinash Lakshman 18:29:52 |
| | java.lang.OutOfMemoryError: GC overhead limit exceeded
Has anyone seen this error before ? I am running on a 64 bit machine with
JDK1.6.0_01. I am starting this process -Xmx flag set to 8GB. Is this a VM
bug or do I have to start looking into the GC behavior ?
Please advice.
Thanks in advance
Avinash
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| | 4 answer | Add comment |
Wednesday, 22 August 2007
|
| Is it thread-safe to pool the PreparedStatement? Carfield Yim 09:07:06 |
| | I just join a project, this existing team member of this project
concern performance a lot so their pool all PreparedStatements into a
map (probably not a nice optimization, but I have no say about that)
when the application start. And then reuse those preparedstatement
again and again.
I haven't get time to check all method call using those
preparedstatement are synchronized properly. If that is not the case,
is it thread-safe to pool the PreparedStatement?
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| | 11 answers | Add comment |
Tuesday, 21 August 2007
|
| Open source Profilers Avinash Lakshman 05:36:21 |
| | Hi
Any good open-source profilers that you guys would recommend based on
experience ? Basically I need something that will tell me the time spent in
each method call over a run.
Thanks
Avinash
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| | 11 answers | Add comment |
Sunday, 19 August 2007
|
| BufferedInput/OutputStream and buffer size Avinash Lakshman 00:10:28 |
| | Hi
Has anyone ever run into this ? It looks like setting the buffer size to
some really high value doesn't really help. Is it true that above the
default size which is I guess is 2K, setting this size to anything higher is
of absolutely no use. Any experience or workarounds to setting the buffer
size to something like 64 MB.
Thanks
A
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| | 2 answer | Add comment |
Saturday, 18 August 2007
|
| Minimizing Garbage collection in Latency sensitive applications Rodrick Brown 22:58:17 |
| | I would like to start a brain storming session on ways to minimize GC
on latency sensitive multi-threaded applications anyone care to share
some tips/ideas?
Thanks.
--
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http://www.rodrickbrown.com
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| | 5 answers | Add comment |
Friday, 17 August 2007
|
| Interesting issue Sudhakar Jalli 23:05:39 |
| | I am transforming xml to xml using an xsl with Xalan
XSLT processor. But I am getting the resulting xml as
string instead of
nodelist.
test.xsl
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:lxslt="http://xml.apache.org/xslt"
xmlns:result="http://www.example.com/results"
extension-element-prefixes="result" version="1.0">
<xsl:output method="xml"/>
<lxslt:component prefix="result"
functions="GetCopyBookData">
<lxslt:script lang="javascript">
function GetData(Data)
{
var x1 = 0;
var x2 = 0;
var result;
for(var i = 1;i < 3; i++)
{
var s = "<Customers><FirstName>";
x1 = x2;
x2 = x1 + 15;
s = s + Data.substring(x1,x2) + "</FirstName>";
s = s + "<LastName>";
x1 = x2;
x2 = x1 + 1;
s = s + Data.substring(x1,x2) + "</LastName>";
s = s + "<StreetNum>";
x1 = x2;
x2 = x1 + 1;
s = s + Data.substring(x1,x2) + "</StreetNum>";
s = s + "<Street>";
x1 = x2;
x2 = x1 + 1;
s = s + Data.substring(x1,x2) + "</Street>";
s = s + "<City>";
x1 = x2;
x2 = x1 + 1;
s = s + Data.substring(x1,x2) + "</City>";
s = s + "<State>";
x1 = x2;
x2 = x1 + 1;
s = s + Data.substring(x1,x2) + "</State>";
s = s + "<Zip>";
x1 = x2;
x2 = x1 + 1;
s = s + Data.substring(x1,x2) + "</Zip>";
result = result + s;
}
return result;
}
</lxslt:script>
</lxslt:component>
<xsl:template match="/">
<xsl:variable name="Data" select="data"/>
<xsl:value-of select="result:GetData($Data)"/>
</xsl:template>
test.xml
<Customers>
<data>SudhakarJalli030719751809Bigbenddrmilpitasca95035Rajeevkasarabada032719751788lowerbenddrivesanjoseca94523</data>
</Customers>
Result.xml
<Customers>
<FirstName>Sudhakar</FirstName>
<LastName>Jalli</LastName>
<DOB>03071975</DOB>
<StreetNum>1809</StreetNum>
<Street>BigBendDr</Street>
<City>Milpitas</City>
<State>CA</State>
<Zip>95035</Zip>
</Customers>
<FirstName>Rajeev</FirstName>
<LastName>Kasarabada</LastName>
<DOB>03271975</DOB>
<StreetNum>1788</StreetNum>
<Street>lowerbenddrive</Street>
<City>sanjose</City>
<State>CA</State>
<Zip>94523</Zip>
</Customers>
Thanks in Advance
Sudhakar
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| | 40 answers | Add comment |
Thursday, 16 August 2007
|
| Java API for disks in a machine Avinash Lakshman 10:49:58 |
| | Hi All
I know there is exposed API for identifying the number of network interfaces
in a machine. Is there API available for identifying the number of disks
available in a machine ?
Thanks
A
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| | 2 answer | Add comment |
Tuesday, 14 August 2007
|
| Exit from Exception Code Ivan H Mann 12:22:33 |
| | Running on my Unix workstation, I have a main routine which pops up a
gui. Running from the command line, the gui does some processing,
responding to different buttons that at pressed, until the Done button
is pressed, when the gui goes away, the program exits, and the prompt
appears in the shell window.
There are things that can cause an exception to occur. Sometimes the
exception handling can cause a JOptionPane gui to pop up under control
of the code in a catch block. When these things happen, everything
appears to be the same, except that usually after the gui disappears
control does not return to the shell window until I press ctrl-C. This
tells me there is a process running somewhere, but I don't know where.
When testing, this is only a minor annoyance, but I am concerned that I
don't know what is going on. I am also concerned that there might be
some implication when running in production. Does anybody know what is
going on with the exception handling or the JOptionPane?
Ivan Mann
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| | 21 answer | Add comment |
Friday, 10 August 2007
|
| Re: ADVANCED-JAVA Digest - 2 Aug 2007 to 3 Aug 2007 (#2007-76) Michael Brewer 15:41:03 |
| | .... just try that at MacOSX , but don't give me a thread dump  is that only for solaris?? On 8/1/07, ron.yang@oracle.com <ron.yang@oracle.com> wrote: Get into the mystery state then ask your process for a thread dump (kill -3 pid ?), this ought to produce a lead.
On OS X 10.4, calling kill -3 <PID> (or kill -QUIT <PID>) spits a thread
dump to the console (default: Applications/Utilities/Console.app).
I haven't been able to get the same behavior on 10.3, with limited time
spent.
michael
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| | 4 answer | Add comment |
|
| Forcing sub-classes to implement Constructor Roger Jakobsen 14:02:43 |
| | Is there a way to force subclasses of a class to implement a certain (read
empty) constructor.
mvh roger j
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| | 17 answers | Add comment |
Thursday, 9 August 2007
|
| Compacting multiple large files Avinash Lakshman 19:35:03 |
| | Hi
I have a requirement where I need to merge multiple sorted large files into
one single file. There could be at any given instant of time up to 50 files
which could be a few GB in size. Is there any known efficient algorithm or
technique in Java to achieve this ?
Thanks in advance
Avinash
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| | 11 answers | Add comment |
Tuesday, 7 August 2007
|
| [JBoss IDE] - tutorial help Wenger 19:02:59 |
| | I'm working through the JBoss-IDE tutorial trying to figure out this xdoclet thing and am getting hung up.
Right now I've created the ear file according the directions in the tutorial doc. The initial web page comes up when I start the debugger but when I try to submit I receive an http status 404 with the resource is not available. So I look at the web.xml housed within the war file (within the ear file) and it is completely different from the one I created in the IDE. The same is true of the jboss-web.xml file??? I'm really confused - there are no other web.xml and jboss-web.xml files as part of my project and I've checked and quaddruple checked the config definition to make sure it is pointing the right web.xml file and and the right jboss-web.xml files.
Any ideas?
Also, If anyone could just send me a working FiboApp.ear file I would be most appreciative. email to me at lwengertibco.com
thx,
lw
View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3832746#3832746
Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3832746
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| | 8 answers | Add comment |
|
| connection of tally accounting software to .net Sachin Garg 14:51:28 |
| | Hi
I am Sachin looking for solution to establish connection of vb.net to
tally software and update the data of tally from .net application
Please mail be the details how could it be done
Regards
Sachin garg
Email sagarg@hcltech.com,gsaching9001@yahoo.co.in
|
| | 2 answer | Add comment |
Monday, 6 August 2007
|
| table Aristo Togliatti 18:24:43 |
| | Hi all,
is it possible to retrieve the x and y coord. of a table's left lower corner
(or any corner)?
Thx,
A.
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| | 14 answers | Add comment |
|
| hi Ashish Sanghvi 10:48:14 |
| | Hi,
I have just join the group.
Can anyone suggest me the best way to start?
Regards,
Ashish Sanghvi
|
| | 241 answer | Add comment |
Sunday, 5 August 2007
|
| Server-Mode JVM's Native Code Compilation Policy Randall R Schulz 23:58:03 |
| | Hi,
I have been under the impression that Sun's server-mode JVM will
immediately JIT-compile all methods of all classes as soon as they're
loaded.
I tried to find confirmation of this, but couldn't. Is this something I
might have read once that is no longer true? Or did I somehow fabricate
the whole thing?
Randall Schulz
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| | 11 answers | Add comment |
Wednesday, 1 August 2007
|
| re: logo Timothy Ma 17:19:02 |
| | Sirs
I am going to display pdf on the fly by incoking a servlet in xslt page
However, I want to embedded a logo to display page.
Because broswer machine would provide no directory to hold the jpeg file.
Is there any suggestion to do this?
Timothy Ma |
| | 6 answers | Add comment |
Monday, 30 July 2007
|
| Form help Good Fella 17:32:18 |
| | Hi All,
I currently have a small problem with my PHP form. I have made two PHP
files (application.php and process_application.php).
On submitting the form, you then move to process_application.php. Any
errors will force the form NOT to be submitted to me.
However, how do I stop people from accessing process_application.php
directly? You can still type in the URL of this address without filling in
any details.
Although it serves up an error, is there anyway I can prevent people from
getting to this page unless they press "Submit" on the actual form on
application.php?
Thanks,
SK
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| | 16 answers | Add comment |
Sunday, 29 July 2007
|
| How use JAXP DOM with Schema Validation? Dan Bizman 14:39:44 |
| | I want to use the Java XML API so that I can pop in and out different
implementations of XML parsers as I need/want to. However, as far as I can
tell, if I want Xerces to validate an XML document with a Schema, I CANNOT
use the DocumentBuilderFactory method. Is this correct?
As far as I can tell, the only way to make it use a schema for validation
is by setting certain parser features such
as "http://apache.org/xml/features/validation/schema" and this can only be
done on either a SAX Parser or Xerces' DOMParser, which you MUST refer to
explicitly by name to use "setFeature" since setFeature is not part of the
DOM interface.
Does anyone know if there's a way around this? Can I actually use the
following and make it use an XML Schema for validation?
<code>
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating( true );factory.setNamespaceAware( true );
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse( file );
</code>
If not, then what was the purpose of the above interface (JAXP)?!
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| | 3 answer | Add comment |
Monday, 23 July 2007
|
| Memory mapping of files. Avinash Lakshman 23:59:38 |
| | Hi All
I was looking into how to do Memory mapping of files in Java. I figured out
that once a portion of a file is loaded into memory there isn't any specific
API to unload it. Atleast I couldn't find any. Are there any tricks anyone
is aware of to acheive this? Is this necessary, if the ByteBuffer that is
returned is treated as a local variable ? Docs say that the loaded file is
unloaded when the ByteBuffer is garbage collected. Is this good enough or is
there any trick to force the unload ?
Thanks in advance
A
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| | 3 answer | Add comment |
Tuesday, 17 July 2007
|
| Ajax Ramin 20:10:00 |
| | I know Matt has some plans to add Ajax capabilities to AppFuse. I
found this site with some nice examples to look at.
http://www.fiftyfoureleven.com/resources/programming/xmlhttprequest/examples
--
- Ramin
|
| | 107 answers | Add comment |
Saturday, 14 July 2007
|
| Synchronization in a HashMap Avinash Lakshman 15:42:02 |
| | Hi All
I was wondering if anyone has implemented this kind of synchronization in a
HashMap. I want synchronized access to the put() and get() methods but I do
not want to synchronize the entire data structure by using a Hashtable. I
was thinking of somthing along these lines:
Maintain a separate list of the keys inserted into the map. On put() check
this list to see if the key exists. If it does get it and synchronize on
that key. If not add it to the list and synchronize on it. Any other design
ideas on how to achieve per-key based synchronization.
Thanks in advance
A
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| | 5 answers | Add comment |
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