hi,
Friends I need to configure my project with JDK 1.6 version.In this project I have to use tomcat server which version of tomcat is compatible with Java 1.6.
Hi guys,
Just wondering if you could help wanting to produce an activity stream in Java, the idea was to have a JLabel and text area followed by a divider be displayed on a screen and then repeated X amount of times according to what data was in a database.
What I was wondering is how could I possibly repeat the placing the jlabel, text area, and diveder on the screen above the last rendered objects on the fly and all displayed correctly no matter the size of the text area of each set of object sort of like the image below.
Hope I made it clear as I could thanks
Hi All
I want to generate image on server side. My Image is stored in server side's database in blob format and I am able to convert it into string_image;
Then How to convert that string_image into actual .jpg or .png format.
Actually I am posting attachment as image on users facebook' wall.
How to generate Image at server side in Java?
Is there any sample code to do it?
I need to insert many small rows rapidly into Oracle. (5 fields).
With MySQL, I break the inserts into groups of 100, then use one insert statement for every group of 100 inserts.
But with Oracle, user feedback is that the mass inserts (anywhere from 1000-30000) are too slow.
Is there a similar trick I can use to speed up the programmatic inserts from Java into Oracle?
In a set of radio buttons of the same group, only one can be selected at the same time. I would like to have the same behaviour with a normal button.
Imagine there's a row of 3 buttons. When a button is selected it changes: but.setSelected(true) and the other two buttons should be NOT selected: but.setSelected(false)
Now, is there a generic, simple and clean solution to accomplish that in Java (Swing) ?
Why did Sun (now owned by Oracle, I know) develop the Java Plaform? How does it make business sense? It seems to me like it would be a very expensive project (also, any ideas on how much they spent/are spending to develop/maintain the platform?). Are they making money by selling support or something?
Hi,
I'm having a bit of a strange problem with an application using the Files.probeContentType(path)-method to test for file type: On both my Ubuntu and Fedora systems, it works fine, but when moved to a RedHat Enterprise server (2.6.18-194.el5 #1 x86_64 x86_64 x86_64 GNU/Linux), it only returns null. I'm using java 7 early access (1.7.0-ea-b84). I have to use this version due to functionality that isn't included in 1.6.
Does anyone have an idea of what might be the problem here?
I've been trying to explain Java threading to a colleague who has never been exposed to multi-threaded applications, but apparently I'm not a very good teacher.
Can anyone recommend a good online or offline resource that can explain threading in a simple, step-by-step manner? I know it's a complex topic, but surely there exists an article, book, or other explanation that can result in an "Aha! I get it, finally!" moment.
Would any one please explain this instruction for me:
for (;;)
I have encountered several kinds of these mark (like in ajax code of facebook and in concurrent stuff of Java).
How can I display the graphical "enter symbol" within java applet using fonts?
I want to show "?", which is U+21B5 DOWNWARDS ARROW WITH CORNER LEFTWARDS. –
I want to draw this to applet's screen so that it works in WIN, LINUX, MACOSX, etc.
Is there a font available that makes this possible or should I draw it manually somehow?
g2d.setFont("SymbolFont??which one");
g2d.drawString(myenterSymbolHere,x,Y);
Hi!
My page:
...
<div id="header">
<!-- content header -->
</div>
<div id="content">
<h:messages />
<h:ouputText value="#{example.text}" />
</div>
...
My managedBean:
public class ExampleManagedBean(){
private String text;
public String getText(){
FacesContext.getCurrentInstance().
addMessage(null,
new FacesMessage(FacesMessage.SEVERITY_WARN,
"Warning message...", null));
return text;
}
public void setText(String text){
this.text = text;
}
}
My problem is that the warning message not is rendered in page. Why?
I am trying to diagnose this exception.
"System.Runtime.InteropServices.COMException (0x80070008): Not enough storage is available to process this command. (Exception from HRESULT: 0x80070008)
at System.Runtime.Remoting.RemotingServices.AllocateUninitializedObject(RuntimeType objectType)
at System.Runtime.Remoting.RemotingServices.AllocateUninitializedObject(Type objectType)
at System.Runtime.Remoting.Activation.ActivationServices.CreateInstance(Type serverType)
at System.Runtime.Remoting.Activation.ActivationServices.IsCurrentContextOK(Type serverType, Object[] props, Boolean bNewObj)
at Oracle.DataAccess.Client.CThreadPool..ctor()
at Oracle.DataAccess.Client.OracleCommand.set_CommandTimeout(Int32 value)
...
It does not look like any of the normal types of "storage" have hit any limits. The application is using about 400MB of memory, 70 threads, 2000 handles and the hard drive has many GB free. The machine is running Windows 2003 Enterprise server with 16GB of RAM so memory shouldn't be an issue.
The application is running as a windows service so there are no GDI objects being used. Running out of GDI handles is a common cause of this exception.
Database connections, commands & readers are all all wrapped with using blocks so they should be getting cleaned up correctly.
I'm having trouble deploying .NET application which uses Microsoft Access automation.
I've installed the Access 2007 Runtime and Primary Interop Assemblies (PIAs) on the target machine:
Access 2007 Runtime
Office 2007 PIAs
However, when I try to create the ApplicationClass:
Application access = new ApplicationClass();
I get the following exception:
Unhandled Exception: System.Runtime.InteropServices.COMException (0x80080005): Retrieving the COM class factory for component with CLSID {73A4C9C1-D68D-11D0-98BF-00A0C90DC8D9} failed due to the following error: 80080005.
I've googled the error code and tried tweaking the security settings in dcomcnfg, to no avail.
Any ideas?
I don't want to install the full version of Access due to the cost, and the runtime should at least be able to create an instance of the application, surely?
I have a production environment which require access through a proxy server. Occasionally said server returns blank responses badly confusing the Metro web service library causing all kinds of interesting RuntimeExceptions. I believe the proxy is Squid.
In order to handle these better, I would like to set up a similar scenario here with a local proxy under my control causing all kinds of interesting failures. A quick survey strongly indicated I was not asking right.
So, the question is, is there a simple, open source HTTPS/HTTP whatever proxy written in Java suitable for this purpose?
After installing Eclipse e4 Tools in my Eclipse 4.1.2 from update site. I am getting error when launching the eclipse.exe "An error has occurred. See the log file <my_workspace_path>\.metadata\.log". And the content of .log file are:
!SESSION 2012-04-06 16:00:01.609 -----------------------------------------------
eclipse.buildId=M20120223-0900
java.fullversion=J2RE 1.6.0 IBM J9 2.4 Windows XP x86-32 jvmwi3260sr5-20090519_35743 (JIT enabled, AOT enabled)
J9VM - 20090519_035743_lHdSMr
JIT - r9_20090518_2017
GC - 20090417_AA
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86 -clean -console
!ENTRY org.eclipse.osgi 4 0 2012-04-06 16:00:17.343
!MESSAGE Application error
!STACK 1
java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 1
at org.eclipse.emf.common.util.URI.segment(URI.java:1731)
at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.getBundle(ReflectionContributionFactory.java:135)
at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:61)
at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:53)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.processHierarchy(E4Workbench.java:196)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.init(E4Workbench.java:122)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.<init>(E4Workbench.java:73)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:293)
at org.eclipse.ui.internal.Workbench$3.run(Workbench.java:534)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:520)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:599)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
I also tried the eclipse.exe -clean to launch it but getting same error.
I am new to JTA and it's underlying transaction managers. Can anyone explain the pros/cons of each of these? Feel free to add others I didn't list in title.
Also, don't the major applications servers (WebSphere, JBoss, Glassfish) have their own JTA compliant transaction manager? In those environments, would you still use these third party implementations?
Hello,
When I include a 'disabled' attribute on an a4j:commandButton, the button's action is not performed. Taking the 'disabled' attribute out causes it to work properly. I am not doing any special validation (that I'm aware of) and am not seeing any validation error messages.
Here is part of my page:
<t:dataTable id="myTable"
var="region"
value="#{MyPageBackingBean.regions}"
width="100%">
...
<a4j:commandButton value="Update"
action="#{region.doUpdate}"
oncomplete="alert('done');"
disabled="#{!empty region && region.messageEmpty}"
immediate="true"/>
...
</t:dataTable>
Any ideas? Thanks!
Edit:
I tried setting preserveDataModel="true" on the t:dataTable to no avail.
I also made a test having an a4j:commandButton and text box with no data table, but the backing bean action is still not being fired:
<h:form>
<a4j:region>
<a4j:outputPanel id="testregion">
<h:messages id="messages"/>
<a4j:status>
<f:facet name="start">
<h:graphicImage value="/images/progress_indicator.gif"/>
</f:facet>
</a4j:status>
<h:inputTextarea
rows="5"
value="#{MyPageBackingBean.myValue}"
style="width:100%; border: 1px solid #99CCFF;">
<a4j:support event="onkeyup"
reRender="testregion"
eventsQueue="messageModificationQueue"
ignoreDupResponses="true"
requestDelay="500"/>
</h:inputTextarea>
<a4j:commandButton id="doDelete"
value="Delete"
action="#{MyPageBackingBean.dummy}"
reRender="testregion"
disabled="#{empty MyPageBackingBean.myValue}"/>
<h:outputText value="#{MyPageBackingBean.myValue}"/>
</a4j:outputPanel>
</a4j:region>
</h:form>
Here is the new backing bean code used for testing:
private String m_myValue = null;
public String getMyValue()
{
return m_myValue;
}
public void setMyValue(String value)
{
m_myValue = value;
}
private String mystr2 = null;
public String dummy()
{
mystr2 = "hello";
return null;
}
Thanks!
Some Eclipse plugins are mandated by your environment. The appropriate source code management plugin, for example - and I'm not interested in those.
Some provide useful enhancements, but in a specific niche. I'm not interested in those.
Some are great, but cost money. I'm not interested in those.
Some were really useful on older versions of Eclipse, but are now part of the core build of the latest Eclipse version (3.4 as I write this). I'm not interested in those.
I want advice on which plugins every Java SE developer should be installing, one per answer please.
Hi
In struts2 upload methods, can I choose where the uploaded file must be saved. I mean, all the examples in web ask me to store in WEB-INF which surely is not a good idea. I want to be able to store the uploaded file in any place in my disk.
How should i do it? Can i do it with help of ServletContextAware interceptor ?
I'm trying to write a custom servlet (for AJAX/JSON) in which I would like to reference my @ManagedBeans by name. I'm hoping to map:
http://host/app/myBean/myProperty
to:
@ManagedBean(name="myBean")
public class MyBean {
public String getMyProperty();
}
Is it possible to load a bean by name from a regular servlet? Is there a JSF servlet or helper I could use for it?
I seem to be spoilt by Spring in which all this is too obvious.
I show some detail using popup windows. I want to close those when the user clicks on sign-out link. I have a JavaScript function that'll close the windows.
The sign-out link is rendered using Navigation MenuModel. The definition in faces-config is as below -
<managed-bean>
<managed-bean-name>signoutNavigation</managed-bean-name>
<managed-bean-class>com.xxx.xxx.framework.NavigationItem</managed-bean-class>
<managed-bean-scope>none</managed-bean-scope>
<managed-property>
<property-name>label</property-name>
<value>Sign Out</value>
</managed-property>
<managed-property>
<property-name>viewId</property-name>
<value>/signout.jsp</value>
</managed-property>
<managed-property>
<property-name>outcome</property-name>
<value>signout</value>
</managed-property>
<managed-property>
<property-name>onclick</property-name>
<value>closeOrderWindows()</value>
</managed-property>
</managed-bean>
The problem is when I use the "onclick" property on managed-bean, the page doesn't submit to "signout.jsp" and remains on same page.
When I remove/comment the "onclick" part, the page gets submitted properly.
I use MyFaces Trinidad.