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Index ‹ java-programmer
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- 1
- class not found within IEHi,
I've written an applet. It properly works with Mozila. But with
Internet Explorer it says "Class [the applet's name] not found" or
something.
What is the problem? How can I fix it?
Thank you,
Siamak
- 1
- checkbox ploblem pls help!!i was new in java and i now completed add the checkbox in each node but the
ploblem is i cant click the check box..
what should i do in next step... pls help me thank you..
following is my code
fileTree.setCellRenderer(new DefaultTreeCellRenderer()
{
public Component getTreeCellRendererComponent(JTree tree, Object
value,
boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus)
{
super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf,
row, hasFocus);
JCheckBox chk = new JCheckBox();
chk.setContentAreaFilled(false);
chk.setEnabled(true);
//
chk.setBorderPaintedFlat(true);
chk.setOpaque(false);
JPanel jPanel = new JPanel(new BorderLayout());
jPanel.add(chk, BorderLayout.WEST);
jPanel.add(this, BorderLayout.EAST);
return jPanel;
}
--
Message posted via http://www.javakb.com
- 4
- How to control the cursor positon of java program in console mode?I am writing a small database that requires user input.
However, whenever something is output to the screen, the cursor stays at the
beginning of the output instead of the end of the output.
How can I let it go to the end of the output?
For example:
say, the output is like this:
This is a database. Please input your information below.
prompt:>
I want the cursor to go to after the ">" sign but it stays in front of
"this" although whenever the user presses the keyboard it goes the end after
">".
This is not a big problem but makes my application look not so professional.
Anyway to cure this?
John
- 5
- PropertyChangeListener not recognizing changes to a putClientPropertyI must be missing out on something fundamental . . . why doesn't the
following code ever register a PropertyChangeEvent?
import java.beans.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.text.*;
public class PropTest extends JFrame {
private Boolean myBoolean = Boolean.FALSE;
public PropTest() {
super("PropertyChangeListener Test");
JPanel panel = new JPanel();
JButton button = new JButton(new BooleanAction("Button pushed"));
button.setText("Push me!");
panel.putClientProperty("myBoolean", myBoolean);
panel.addPropertyChangeListener("myBoolean", new BooleanListener());
panel.add(button);
panel.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_SPACE, 0),
"space");
panel.getActionMap().put("space", new BooleanAction("Space
pressed"));
this.getContentPane().add(panel);
}
private class BooleanAction extends AbstractAction {
String title;
public BooleanAction(String title) {
super();
this.title = title;
}
public void actionPerformed(ActionEvent e) {
System.out.println(title);
System.out.println("Old value: " + myBoolean.toString());
myBoolean = new Boolean(!myBoolean.booleanValue());
System.out.println("New value: " + myBoolean.toString());
}
}
private class BooleanListener implements PropertyChangeListener {
public void propertyChange(PropertyChangeEvent e) {
System.out.println("Hey, you changed my value!");
}
}
public static void main(String[] args) {
PropTest propTest = new PropTest();
propTest.setResizable(false);
propTest.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
propTest.pack();
propTest.setVisible(true);
}
}
- 5
- JTable row selection (left and right mouse)Is it possible to be able to allow users to use either the left or the right
mouse button to select one or more
rows in a JTable, and upon the selection, be able to tell which mouse button
they used to select the row(s)?
I have 15 tables on the screen. The user needs to select one or more rows
from one table (the source)
and then the same number of rows in another table (the destination) and then
I need to swap the row
data from both tables. So, I need a way to differentiate between the
selections on the source and the
destination tables.
Thank you.
- 6
- Balanced TreeI was wondering if there were a built in (or freely available) library for
handling balanced trees.
I find many projects use them or could benefit from them.
:)
- 6
- DB Selection - J2MEHi,
I am developing an application for PDAs using IBMs
VM (J9). Now my problem is, that I want to store
data on the device. Well, I am using J2ME with
Personal Profile to do this, so file support is
present in this configuration. Now I wonder if
there exist solutions to store data and easily
retrieve it. (commercial, free, open source)
I have to store data on the device, add new
data often, update and delete old data sometimes.
1. So how do you store data, when not having present
a complete RDBMS?
2. There are RDBMS for this platform too.
Any experiences using them?
(for example Pointbase)
3 There is this JDO Option (for example
with ObjectDB) is this working well?
4. What do you think of the following options,
which I already found, but have no idea
whether they will work?
I alread checked:
-JDMB (rather minimalistic, only key/value pairs to be saved)
-JISP (produces rather big files -> not suitable for
constrained devices?)
-HSQL (Anybody got that to work within the mentioned configuration?
I think mainly the java.sql.* classes are missing in the
personal profile)
-ObjectDB (OODB with JDO, no idea exactly if this will
work for my purposes)
Any help will be appreciated
Rene
- 7
- newbie: Global EJB and more ...
Hi group,
While thinking of how to transfer a tranditional client-server app
into J2EE, I got following two questions:
1, In a typical application, there should be some global (even
singleton) objects which are created on application startup code and
stay there until the program exiting. In the idiom of J2EE, what kind
of Beans act like this kind of global object? And, when and how these
global beans should be created?
2, I knew Beans have to be deployed onto the server before they come
to be available, but those Beans quit often need some objects to
complete its job, these objects may encapsulate a algorithem, may do
some management task, but they typically dont have to exposed to
client tire or web tire. I call these objects are intermediate
objects. My question is, should this kind of objects need to be a EJB?
My J2EE books seems only to mention three kinds of Beans,
SessionBeans, EntityBeans and MessageBeans. But what do I do for those
intermediate objects?
Thanks in advance.
--
email***@***.com
%% (fortunes)
Q: How did you get into artificial intelligence?
A: Seemed logical -- I didn't have any real intelligence.
- 7
- butting components right up against each otherOn Fri, 27 Jun 2003 13:29:59 GMT, Roedy Green <email***@***.com> wrote:
> On Fri, 27 Jun 2003 14:06:22 +0100, Daniel Dyer
> <email***@***.com> wrote or quoted :
>
>> Sorry, I didn't mean ipadx/ipady, that won't help. You certainly
>> shouldn't need to use absolute positioning though. Do you have any
>> sample code to show us?
> I just wanted to put a string of JTextFields with black backgrounds
> right against each other so they look like one continuous field.
Have you tried setting the borders on the text fields to null? Maybe it's
the borders that make it look like there's a gap. Have you tried a
different layout (maybe try GridLayout, just to see if it looks the same,
it's much simpler so it will be easier to spot if you've done something
wrong).
Dan.
--
Daniel Dyer
Empathy Software (http://www.empathysoftware.com)
-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 80,000 Newsgroups - 16 Different Servers! =-----
- 7
- 'back engineering' java appletshi,
is it possible to gain access to java code by a user using an applet over
the web? i know with some scripting languages like PHP or javascript then
users can view the code and 'back engineer' it to discover how it works etc.
is this possible with java?
thanks
- 7
- sample jsp servlet application requiredHi geeks,
I'm a beginner in jsp and servlets, i want a sample JSP-SERVLET
applicaton with source code. Can you please tell me where can i get the
sample applications.
Thanks in advance...
- 7
- File upload with JSF.....Hi,
i'm a new user of java. I have a question. I have to develop a JSF
application that make user able to:
1) Upload a txt file
2) Showing to user columns and rows numbers of file.
For this second operation i'have developed a java application that
receive a txt file from a BufferedReader and counts rows and columns
number.
My questions are:
1) How can i realize file upload with JSF?
2) In which format a file is uploaded?
3) Can i use my java application for counting rows and columns number
of file?
Can you help me?Please use easy concepts because i'm inexpert.....
- 14
- JAVA ?Oracle Programmers wantedHighly experienced JAVA / Oracle programmers wanted for a three month
contract in South Africa (JHB). Must have had ERP experience with some
integration skills.Open source experience an added advantage. Must be able
to work in a team.
Email CV to email***@***.com
- 15
- Java client-server: what options are there?This is an issue that I have been pondering and investigating
for years, and I wish there was a book, chapter or URL that
covered it.
I have to develop client-server systems in which the following
is pretty much decided:
- The database is Oracle 9iR2
- The server OSs are Solaris and Linux
- The clients (a few dozen) are Windows (XP?)
- The client side runs on Java
Those are the givens, the rest is up for grabs...
The main undecided part is: exactly how to realize the client-server
connection? That's what I would like to hear and read about.
What options do I have?
To get the ball rolling, I will share my experiences so far.
First, I tried the JDBC approach, with a standalone application.
There was a stored procedure in the server, and it was called
from the client. The cons were: the size of the JDBC being much
larger than my app, and there was also the issue of performance.
I feel that I should move more of the functionality and heavy duty
processing to the server side, where I can have plenty of horsepower.
My second attempt was a Java applet which got its data
through CGI-BIN from an OCI C program running on the server.
The performance was pretty good and I'd like to stick with
the OCI part but not with CGI-BIN.
I just began the third approach: using SSH. The server part
is a given since it comes ready in Linux, and I got the Java
client part from sshtools.com.
I have read about servlets, Tomcat, etc. but it looks like once
I get into that stuff (the area seems to be called "Enterprise"),
the tools become extremely expensive (for instance I will have
to upgrade my $700 Developer JBuilder to a $3500 Enterprise JBuilder).
The issue of performance still worries me (I am a speed freak):
I wish I could just use the Unix R-commands (rsh, etc.) so all
the encrypting-decrypting doesn't get in the way of client
performance (my app is Intranet in a trusted environment) but
I guess I can live with the more modern, secure, etc., SSH.
Thanks very much for sharing your expert insight on this,
(and if you are a writer deciding on a topic, I'll bet that
this one will sell a lot of books! - anyone from O'Reilly
out there?)
-Ramon F Herrera
- 15
- JTable and associating objects with nodesHi,
Does anyone know how to store objects in a name value pair data structure
(i.e. hashmap) in a JTable? It easy to store the name of the object but to
store the object with the name, I am not sure.
Any help would be great
Thanks
Bob
|
| Author |
Message |
brian.monteith
|
 Posted: 2004-7-30 1:07:00 |
Top |
java-programmer, XML Validation problem
I am having alot of trouble getting a XML document validated with a
schema.
I got a sample document and schema off of w3schools.com, which passed
an online xml validator:
http://tools.decisionsoft.com/schemaValidate.html. I cannot, however,
get them validated programmatically.
The documents are:
node.xsd:
<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.w3schools.com"
xmlns="http://www.w3schools.com"
elementFormDefault="qualified"><xs:element name="note">
<xs:complexType>
<xs:sequence>
<xs:element name="to" type="xs:string"/>
<xs:element name="from" type="xs:string"/>
<xs:element name="heading" type="xs:string"/>
<xs:element name="body" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element></xs:schema>
node.xml:
<?xml version="1.0"?>
<note
xmlns="http://www.w3schools.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.w3schools.com note.xsd">
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
I'm using java 1.5 currently, although I had problems with 1.4 and
xerces, so I'm pretty confident the problem isn't related to the java
version.
My code is:
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setIgnoringElementContentWhitespace(true);
factory.setIgnoringComments(true);
SchemaFactory sFact =
SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
factory.setSchema(sFact.newSchema(new java.io.File(SCHEMA_FILE)));
DocumentBuilder builder = factory.newDocumentBuilder();
builder.setErrorHandler(new ErrorHandler() {
public void warning (SAXParseException exception) throws SAXException
{
System.err.println(exception);
}
public void error (SAXParseException exception) throws SAXException {
System.err.println(exception);
}
public void fatalError (SAXParseException exception) throws
SAXException {
System.err.println(exception);
}
});
org.w3c.dom.Document doc = builder.parse(file);
The error I recieve is:
org.xml.sax.SAXParseException:
http://www.w3.org/TR/xml-schema-1#cvc-elt.1?note
org.xml.sax.SAXParseException:
http://www.w3.org/TR/xml-schema-1#cvc-elt.1?note
Exception in thread "main" java.lang.IllegalStateException
at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorHandlerImpl$3.checkState(ValidatorHandlerImpl.java:411)
at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorHandlerImpl$3.getElementTypeInfo(ValidatorHandlerImpl.java:441)
at com.sun.org.apache.xerces.internal.jaxp.JAXPValidatorComponent$SAX2XNI.elementAug(JAXPValidatorComponent.java:299)
at com.sun.org.apache.xerces.internal.jaxp.JAXPValidatorComponent$SAX2XNI.endElement(JAXPValidatorComponent.java:291)
at com.sun.org.apache.xerces.internal.jaxp.XNI2SAX.endElement(XNI2SAX.java:163)
at com.sun.org.apache.xerces.internal.jaxp.validation.XNI2SAXEx.endElement(XNI2SAXEx.java:108)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.endElement(XMLSchemaValidator.java:818)
at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorHandlerImpl.endElement(ValidatorHandlerImpl.java:339)
at com.sun.org.apache.xerces.internal.jaxp.XNI2SAX.endElement(XNI2SAX.java:163)
at com.sun.org.apache.xerces.internal.jaxp.JAXPValidatorComponent.endElement(JAXPValidatorComponent.java:206)
at com.sun.org.apache.xerces.internal.xinclude.XIncludeHandler.endElement(XIncludeHandler.java:790)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1241)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1685)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:248)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:169)
...
I am behind a web proxy, and I don't know if the validation process
involves retrieving files at the URLs in the xml and xsd files, which
could be the problem.
can someone shed some light on this?
Thanks in advance.
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vicient
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| Posted: 2004-8-30 20:27:00 |
Top |
java-programmer >> XML Validation problem
I think it is the bug of java 1.5. If you get validator from Schema, it
works.
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vicient
|
| Posted: 2004-8-30 20:28:00 |
Top |
java-programmer >> XML Validation problem
I think it is the bug of java 1.5. If you get validator from Schema, it
works.
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steve_marjoribanks@hotmail.com
|
| Posted: 2006-3-1 20:17:00 |
Top |
java-programmer >> XML Validation problem
I've posted this here and in the comp.lang.java.programmer group
because I'm not really sure if it's a Java problem or an XML problem!
Basically I have written a Java application which loads an XML file and
validates it (it is going to do other stuff with it as well once I get
this validation problem sorted!). I am using JDOM and Xerces-J 2.7.1.
It starts to validate fine but then reports a whole load of errors
which I obtained the details of using Java. The first few look like
this:
WARNING: schema_reference.4: Failed to read schema document
'http://schemas.opengis.net/gml/3.1.1/base/feature.xsd', because 1)
could not find the document; 2) the document could not be read; 3) the
root element of the document is not <xsd:schema>. at line 16, column
121 in entity
http://www.dur.ac.uk/s.j.marjoribanks/geotechml/rawData.xsd
WARNING: schema_reference.4: Failed to read schema document
'http://schemas.opengis.net/gml/3.1.1/base/feature.xsd', because 1)
could not find the document; 2) the document could not be read; 3) the
root element of the document is not <xsd:schema>. at line 10, column
121 in entity http://www.dur.ac.uk/s.j.marjoribanks/agsml/agsml.xsd
WARNING: schema_reference.4: Failed to read schema document
'http://schemas.opengis.net/gml/3.1.1/base/feature.xsd', because 1)
could not find the document; 2) the document could not be read; 3) the
root element of the document is not <xsd:schema>. at line 9, column 121
in entity
http://www.dur.ac.uk/s.j.marjoribanks/agsml/holeInformation.xsd
WARNING: schema_reference.4: Failed to read schema document
'AgsmlBase.xsd', because 1) could not find the document; 2) the
document could not be read; 3) the root element of the document is not
<xsd:schema>. at line 10, column 43 in entity
http://www.dur.ac.uk/s.j.marjoribanks/agsml/holeInformation.xsd
WARNING: schema_reference.4: Failed to read schema document
'http://schemas.opengis.net/gml/3.1.1/base/feature.xsd', because 1)
could not find the document; 2) the document could not be read; 3) the
root element of the document is not <xsd:schema>. at line 9, column 121
in entity
http://www.dur.ac.uk/s.j.marjoribanks/agsml/laboratoryTesting.xsd
The first few errors are all like that, reporting that it could not
access a schema file and then there are loads which i think are
probably as a result of the schema file being inaccessible.
My schema imports quite a few other schemas, but there only seems to be
a problem loading 3 of them. The AgsmlBase.xsd one which is in the same
directory as the target schema of my instance document, the
http://www.schemas.opengis.net/gml/3.1.1/base/feature.xsd schema and an
XLinks one as well (not shown in the errors above). I don't understand
why it is not able to access them though? If I validate my file in
XMLSpy2006 it is ok (apart from one nasty bug which the Altova support
team inform me is a problem with the software). I have checked the URLs
and the schemas are definitley there and I can access them so why can't
it access them?
One though I did have was that if one of them is already imported into
one of the schemas which I import, could this cause a problem? It
doesn't in XMLSpy though and I don't think it should really?
Thanks
Steve
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steve_marjoribanks@hotmail.com
|
| Posted: 2006-3-2 1:48:00 |
Top |
java-programmer >> XML Validation problem
Ok, well I've fixed the problem with the agsmlBase schema, one of the
schemas had a typo and was trying to find AgsmlBase instead.
However, the problem still remains with the other one
(http://schemas.opengis.net/gml/3.1.1/base/feature.xsd). It says it
either can't find it, can't access it or it's not a schema. However, if
you navigate to the URI in a web broswer it is obviously available and
a valid schema as well. I tried validating it using the XSV validator
(http://www.w3.org/2001/03/webdata/xsv) and it said it was fine.
Why when I try and validate my file using Xerces (and Crimson) in my
Java application can it not find the schema mentioned above even though
it is obviously there? I validated the schema I am using with the XSV
tool also and it said that too was fine.
Anyone got any idea?!!!
Steve
Steve
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Index ‹ java-programmer |
- Next
- 1
- Unicode value of a characterHi,
I am a beginner in Java programming and I would like to know which
code ( program ) I must write to get the Unicode value of any
character ?
Thank you very much for your help !
JPR105.
- 2
- Problem with Session Beans stateHi, I'm currently making a session bean, which will eventually act as
a Shopping Basket.
I have implemented the bean so that it just accepts a string (which
will eventually be an object reference), and the user can add and
remove strings.
Unfortunately, if I access the same bean from another machine and
create an instance of the session bean, they are shown the same
contents as from the other machine.
The session bean type is set to stateful (and I have tried stateless).
Can anyone point me in the direction of the problem please?
Cheers,
David
- 3
- Secret LaunchJoin now to make money
http://www.secretlaunch.com/?codelion
- 4
- where is the maximize button in JDialog?Anybody knows how to get a JDialog to display a maximize
button like a JFrame does? The default JDialog does not come with
maximize or minimize button? I checked out the API for JDialog and
could not find the answer. Can anybody help me out?
- 5
- "Invalid column name" inserting a row with weblogic/oracle
bsaastad wrote:
> Hello,
>
>
>
> Environment
>
> Weblogic 8.1, Oracle 9.0.1, JDK1.4
>
>
>
> I am attempting to migrate from WLS 6.1 to WLS 8.1. All appears to work
> with the exception of database inserts. They ALWAYS fail and return an
> "ORA-00904: invalid column name". I am connecting to the database via a
> pooled data source. This code worked fine under WLS6.1 using the
> Weblogic JDriver. The JDriver performs the inserts under 8.1 but the
> Statement.executeBatch() command returns a 0-length int[] (an
> acknowledged bug in the JDriver.) BEA says to use the drivers supplied
> by Oracle. I have tried both the type 4 driver and the type 2 oci
> driver with exactly the same result.
Odd. Would you pleaes download the latest appropriate version of
oracle's driver and either run this code in a standalone program
getting your connection directly from the driver, or get the driver
to the front of the -classpath argument in the startWeblogic script,
and then run this code in the server again?
thanks,
Joe Weinstein at BEA
>
>
>
> I can query the database via the connection and dump the contents of the
> queried row along with the column names using the ResultMetaData.
>
>
>
> ex.
>
>
>
> ResultSet rs = stmt.executeQuery( sqlCmd );
>
> ResultSetMetaData rsmd = rs.getMetaData();
>
> System.out.println( "Results of '" + sqlCmd + "'");
>
> while ( rs.next() )
>
> {
>
> for( int i = 1; i <= rsmd.getColumnCount(); i++)
>
> {
>
> System.out.println( "'" + rsmd.getColumnName(i) +
> "=" + rs.getString( i ) + "' " );
>
> }
>
> }
>
>
>
> .. produces:
>
>
>
> Results of 'SELECT POOL_ID, POOL_NM, POOL_DESC, REV_BY, REV_DT FROM
> POOL_R WHERE POOL_ID = 11'
>
>
>
> 'POOL_ID=11'
>
> 'POOL_NM=COMM'
>
> 'POOL_DESC=Communications Servers'
>
> 'REV_BY=saastabp'
>
> 'REV_DT=2002-12-16'
>
>
>
> Then when I turn around and try to insert a row like this:
>
>
>
> String sqlCmd = "INSERT INTO POOL_R (POOL_ID, POOL_NM, POOL_DESC,
> REV_BY, REV_DT) VALUES (100, 'FRED', 'TEST POOL NAME FOR FRED', 'test-
> user', {ts '2003-10-24 16:00:26.703'})";
>
>
>
> System.out.println( "[" + sqlCmd + "]");
>
> stmt.executeUpdate( sqlCmd);
>
>
>
> .. I get the exception below. Has anyone seen this before? Any ideas?
>
>
>
> Thanks,
>
> -Brian
>
>
>
> [INSERT INTO POOL_R (POOL_ID, POOL_NM, POOL_DESC, REV_BY, REV_DT) VALUES
> (100, 'FRED', 'TEST POOL NAME FOR FRED', 'test-user', {ts '2003-10-24
> 16:00:26.703'})]
>
>
>
> java.sql.SQLException: ORA-00904: invalid column name
>
>
>
>
>
> at weblogic.rjvm.BasicOutboundRequest.sendReceive(BasicOutbound-
> Request.java:108)
>
>
>
> at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef-
> .java:138)
>
>
>
> at weblogic.jdbc.rmi.internal.StatementImpl_weblogic_jdbc_wrapp-
> er_Statement_oracle_jdbc_driver_OracleStatement_811_WLStub.exec-
> uteUpdate(Unknown Source)
>
>
>
> at weblogic.jdbc.rmi.internal.StatementStub_weblogic_jdbc_rm-
> i_internal_StatementImpl_weblogic_jdbc_wrapper_Statement_ora-
> cle_jdbc_driver_OracleStatement_811_WLStub.executeUpdate(Unk-
> nown Source)
>
>
>
> at weblogic.jdbc.rmi.SerialStatement_weblogic_jdbc_rmi_internal-
> _StatementStub_weblogic_jdbc_rmi_internal_StatementImpl_weblogi-
> c_jdbc_wrapper_Statement_oracle_jdbc_driver_OracleStatement_811-
> _WLStub.executeUpdate(Unknown Source)
>
>
>
> at com.billing.tm.persist.BatchTest.doInsert(BatchTest.java:93)
>
>
>
> at com.billing.tm.persist.BatchTest.main(BatchTest.java:185)
>
>
>
> Caused by: java.sql.SQLException: ORA-00904: invalid column name
>
>
>
>
>
> at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError-
> .java:134)
>
>
>
> at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
>
>
>
> at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:579)
>
>
>
> at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1894)
>
>
>
> at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol-
> .java:1094)
>
>
>
> at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleSta-
> tement.java:2132)
>
>
>
> at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStat-
> ement.java:2015)
>
>
>
> at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(Orac-
> leStatement.java:2877)
>
>
>
> at oracle.jdbc.driver.OracleStatement.executeUpdate(OracleState-
> ment.java:858)
>
>
>
> at weblogic.jdbc.wrapper.Statement.executeUpdate(Statement-
> .java:328)
>
>
>
> at weblogic.jdbc.rmi.internal.StatementImpl_weblogic_jdbc_wrapp-
> er_Statement_oracle_jdbc_driver_OracleStatement.executeUpdate(U-
> nknown Source)
>
>
>
> at weblogic.jdbc.rmi.internal.StatementImpl_weblogic_jdbc_wrapp-
> er_Statement_oracle_jdbc_driver_OracleStatement_WLSkel.invoke(U-
> nknown Source)
>
>
>
> at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef-
> .java:466)
>
>
>
> at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef-
> .java:409)
>
>
>
> at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Aut-
> henticatedSubject.java:353)
>
>
>
> at weblogic.security.service.SecurityManager.runAs(SecurityMana-
> ger.java:144)
>
>
>
> at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServ-
> erRef.java:404)
>
>
>
> at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecu-
> teRequest.java:30)
>
>
>
> at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java)
>
>
>
> at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
>
>
> --
> Posted via http://dbforums.com
- 6
- Form doesn't submit onUnload in NetscapeDear Netscape/Javascript/Java gurus,
I am trying to submit a form onUnLoad when the user accidentally
closes the browser before clicking on a link to complete the
transaction.
On IE, this works fine.
But on Netscape or Mozzilla browsers, the form would simply not submit
when
the browser is closed.
here is the code.
<script language="JavaScript">
function CheckWindowClosed() {
document.MyForm.submit();
}
</script>
<body onLoad="FunctionHandler();" onUnload="CheckWindowClosed();">
Kindly let me know if there is any workaround or fix where I can get
this working on Netscape.
Thanks and Regards,
Yash
- 7
- using parameterized ArrayListI am trying to read write <Event> objects to an ArrayList ... but when
I try to convert the arraylist back to the object arrayit gives me a
ClassCastException for the line
return (Event[]) a.toArray();
--------------------------------------
BufferedReader ois = null;
ArrayList<Event> a = new ArrayList<Event>();
try {
ois = new BufferedReader(new FileReader(this.calFile));
Event e = null;
String line;
while ((line = ois.readLine()) != null) {
e = new Event(line);
a.add(e);
}
ois.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ParseException e) {
e.printStackTrace();
} catch (InvalidTimeRangeException e) {
e.printStackTrace();
}
if (a.isEmpty())
return null;
return (Event[]) a.toArray();
- 8
- Eclipse: browsing sourcecode using { as marksHello everyone,
I am using eclipse 3.0.2 on Linux. Is it possible to browse
Java-sourcecode using the brackets { as a jumping point?
example
public void foo(){ <- first entry
if(isFoo){ <- second entry
doFoo();
}else{ <- third entry
doAnotherFoo();
}
thanks alot for any help!
kind regards
Oliver
- 9
- JCE - load key from stringHi All,
We're trying to use JCE to encrypt some data. The issue is key storage.
We want to store it in some database, so the question is how to
re-create the key for decryption from varchar2 column?
The key in string form looks like this:
cryptix.jce.provider.key.RawSecretKey@3bfce353
This can be stored in the database easily. But how to load this into
KeyStore back?
TIA
Michael
- 10
- tomcat/applet question...this is really weird, in tomcat/webapps/<appName>I have a jsp AND an
applet.. I'm using a package called smack for writing jabber clients
(http://www.jivesoftware.org/smack/), so:
in jsp:
<%@ page import="org.jivesoftware.smack.*"%>
no problems...
in applet:
import org.jivesoftware.smack.*;
when try to compile get told this package doesn't exist...
package is where all packages are supposed to be in Tomcat
(C:\tomcat\common\lib) and, again, the jsp has no problems with it, but
the applet, which is in exact same location as jsp, for some reason
can't find it..
(in applet am even getting en error (identifier expected) on
system.out.println()... don't know what to make of this..
this is line: System.out.println("test");...)
weird thing is, if I hide System.out.println() line get told package
smack doesn't exist.. if I don't hide System.out.println() line get
ONLY identifier-expected error on System.out.println() line..
would appreciate any help... thank you.. Frances
- 11
- type safety in java 1.5 (bug or hole?)"John C. Bollinger" <email***@***.com> schrieb im Newsbeitrag
news:c8g89n$esu$email***@***.com...
> It would all the same be a nice complement to generics if the 1.5
> compiler would indeed issue warnings about user-inserted casts that are
> not provably correct. (I.e. those that the compiler cannot simply
> ignore). That would give Bracha's comment (that started this confusion)
> broad enough scope to no longer be confusing.
I agree very much.
BTW, there's another comment from Bracha in the very same paper that's
confusing (me): He says "The Java virtual machine does not directly support
overriding of methods with different return types. This feature is supported
by the compiler.". What does this mean? Does this mean that the different
return types are gone at run time? Here's an example:
static class A {
static A create() { return new A(); }
public A m(A a) { System.out.println("A->A"); return a; }
}
static class B extends A {
static B create() { return new B(); }
public B m(A a) { System.out.println("A->B"); return (B) a; }
public B m(B b) { System.out.println("B->B"); return b; }
}
public void testOverriding() {
A a_a = A.create(); // static type A, dynamic type A
A a_b = B.create(); // static type A, dynamic type B
B b_b = B.create(); // static type B, dynamic type B
A a2 = a_a.m(a_b); // prints: A->A
A a3 = a_a.m(b_b); // prints: A->A
A a5 = a_b.m(a_b); // prints: A->B <== overriding works
A a6 = a_b.m(b_b); // prints: A->B <== overriding works
B b2 = b_b.m(a_b); // prints: A->B
B b3 = b_b.m(b_b); // prints: B->B
}
public void testReflection() {
try {
System.out.println(
B.class.getMethod("m", new Class[] {A.class}).getReturnType()
== B.class
); // prints: true <== reflection works, too
}
catch (Throwable t) {
throw new RuntimeException("Laufzeitfehler", t);
}
}
So there's obviously some runtime support for overriding methods with a
different return type, because in this example both the overriding and the
reflection worked. Then what did Bracha mean?
2004-05-24, York.
--
werres at uni minus bremen.de
http://www.uni-bremen.de/~werres
- 12
- data lost issue using socketsHi,
I have an interesting issue with socket programming.
I would like to send String based information via Sockets.
As it could happen, that a part of the information gets lost on its
way to the client, I would like to send before all such packages the
size of the package as a "short" value (or something equal, but not
string because you can never be sure that your string completely
arrived ).
Does anybody know what is an elegant solution for this problem?
I send the strings using:
PrintWriter out = new PrintWriter(client.getOutputStream(), true);
out.println("test");
Thanks,
korcs
- 13
- The server encountered an internal error () that prevented itHi All
I am using Developing a Spring Framework MVC application step-by-step
from www.springframework.org. I use apache-tomcat-5.5.23, Ant 1.6 and
jdk1.4.
when i used ant, ant deploy, ant list and ant build the these all
commands
give me message suceessful but when i write url(http://localhost:8080/
springapp/hello.htm) on the browser then I am getting the following
error. do you have solution for this problem.
type Exception report
message
description The server encountered an internal error () that prevented
it from fulfilling this request.
exception
org.apache.jasper.JasperException: /WEB-INF/jsp/hello.jsp(1,1) The
absolute uri: http://java.sun.com/jstl/core cannot be resolved in
either web.xml or the jar files deployed with this application
org.apache.jasper.compiler.DefaultErrorHandler.jsp
Error(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatc
h(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspErro
r(ErrorDispatcher.java:88)
org.apache.jasper.compiler.Parser.processIncludeDi rective(Parser.java:
340)
org.apache.jasper.compiler.Parser.parseIncludeDire ctive(Parser.java:
373)
org.apache.jasper.compiler.Parser.parseDirective(P arser.java:485)
org.apache.jasper.compiler.Parser.parseElements(Pa rser.java:1557)
org.apache.jasper.compiler.Parser.parse(Parser.jav a:127)
org.apache.jasper.compiler.ParserController.doPars
e(ParserController.java:212)
org.apache.jasper.compiler.ParserController.parse( ParserController.java:
101)
org.apache.jasper.compiler.Compiler.generateJava(C ompiler.java:156)
org.apache.jasper.compiler.Compiler.compile(Compil er.java:296)
org.apache.jasper.compiler.Compiler.compile(Compil er.java:277)
org.apache.jasper.compiler.Compiler.compile(Compil er.java:265)
org.apache.jasper.JspCompilationContext.compile(Js
pCompilationContext.java:564)
org.apache.jasper.servlet.JspServletWrapper.servic
e(JspServletWrapper.java:299)
org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:
315)
org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet .java:803)
org.springframework.web.servlet.view.InternalResou
rceView.renderMergedOutputModel(InternalResourceVi ew.java:97)
org.springframework.web.servlet.view.AbstractView.
render(AbstractView.java:250)
org.springframework.web.servlet.DispatcherServlet.
render(DispatcherServlet.java:928)
org.springframework.web.servlet.DispatcherServlet.
doDispatch(DispatcherServlet.java:705)
org.springframework.web.servlet.DispatcherServlet.
doService(DispatcherServlet.java:625)
org.springframework.web.servlet.FrameworkServlet.s
erviceWrapper(FrameworkServlet.java:386)
org.springframework.web.servlet.FrameworkServlet.d
oGet(FrameworkServlet.java:346)
javax.servlet.http.HttpServlet.service(HttpServlet .java:690)
javax.servlet.http.HttpServlet.service(HttpServlet .java:803)
Thanks
- 14
- gui builder for javaHi,
I just started programming java and I am looking for a free gui builder for
java on linux or windows platforms. Where can I find it.
thanks
Johan
- 15
- Applets and J2SE 5.0 - problems?I set my IE browser (corporate edict to use IE...ugh)
to use the 9/30 FCS release of 5.0
Whenever I visit a page with an applet, the browser
crashes.
Someone at our local user group (www.javasig.com)
mentioned something about version mismatches (???).
Anyone else experience this?
btw, kudos to Calvin Austin (J2SE 5.0 spec lead) and
the rest for a very organized and efficient release.
Frank G.
+==========================================+
| Crossroads Technologies Inc. |
| www.CrossroadsTech dot com |
| fgreco at REMOVE!cross!roads!tech!dot com|
+==========================================+
|
|
|
