I'm new to Eclipse 4 RCP and just learning the basics.
I created a part and gave it a class URI.
For some reason the class's constructor isn't being called.
What could be the reason?
PlaygroundPart code:
package com.example.e4.rcp.todo.parts;
public class PlaygroundPart {
public PlaygroundPart() {
System.out.print("Example");
}
}
Nothing is printed in the console.
Related
I am new to c#, recently I read the source of code of Oxygen not include(using dnspy), which have some confusing code. I tried google but nothing helpful can be found.
Threr is a class called ElementEntry derived from a template class YamlIO。
what confuse me is that this template take the parameter T same as the class ElementEntry.
I think this may cause some problem. Am I right?
public class YamlIO<T>
{
...
}
public class ElementEntry : YamlIO<ElementEntry>
{
...
}
I try to extend my MyDSLProposalProvider from an external Eclipse RCP Project. I created an extension point schema which requires a class property which extends my ProposalProvider. In the new project I extend the class an overrode some methods justs to give me some output so I can see that the external method is called. But this is currently not happening. Is there anything I have to consider?
Currently the hirachy looks like:
MyDSLProposalProvider extends AbstractMyDSLProposalProvider
ExternalProposalProvider extends MyDSLProposalProvider
I rewrote a Method generated in the AbstractMyDSLProposalProvider but when its triggered the predefined Method in the AbstractMyDSLProposalProvider is called and not my new implementation.
public class ExternalMyDSLProposalPovider extends MyDSLProposalProvider
{
#Override
public void completeComponent_Name(EObject model, Assignment
assignment, ContentAssistContext context,
ICompletionProposalAcceptor acceptor) {
System.err.println("extern");
if(model instanceof Component)
{
createProposal("foo", "foo", context, acceptor);
}
super.completeComponent_Name(model, assignment, context, acceptor);
}
}
This is the class in the external Eclipse Project.
Thanks for the help.
When you declare an extension point using a schema that you have defined Eclipse puts that declaration in the extension point registry. That is all that is does, you must then write code to make uses of those declarations.
You read the extension point registry using something like:
IExtensionRegistry extRegistry = Platform.getExtensionRegistry();
IExtensionPoint extPoint = extRegistry.getExtensionPoint("your extension point id");
IConfigurationElement [] elements = extPoint.getConfigurationElements();
elements is now an array of the declarations in the various plugins using the extension point.
IConfigurationElement has various methods to get the values of the attributes of the declaration.
If you have defined a class in one of the attributes you can create an instance of the class using:
IConfigurationElement element = .... a config element
Object obj = element.createExecutableExtension("attribute name");
In your case the result should be your ExternalMyDSLProposalPovider.
You will then need to hook this object up with whatever is doing to proposals.
The following is the code generated by SWTBot Recorder.
public class UserInterfaceTester extends SWTBotEclipseTestCase {
#Test
public void TableTest() {
bot.tree().getTreeItem("wtrt").select();
bot.contextMenu("Expand All").click();
bot.tree().getTreeItem("wtrt").getNode("erwtesg(3)").getNode("esrgg").select();
bot.contextMenu("Open Application Metadata File").click();
bot.text().setText("9.5");
bot.text().setText("Synopsys");
bot.text().setText("3.2");
}
}
But when I try to put that in my Test case to run inside my project it shows error in bot.contextMenu. It says "The method contextMenu(String) is undefined for the type SWTEclipseBot".
Extending SWTBotEclipseTestCase automatically gives me bot object which is
protected SWTEclipseBot bot = new SWTEclipseBot();
But it says it is a deprecated version. It says "Deprecated. use SWTWorkbenchBot. This will be removed from future releases"
Hence I tried
SWTWorkbenchBot bot = new SWTWorkbenchBot(); // by removing extends SWTBotEclipseTestCase
that to did not work. What is the issue? Can some one help?
The ContextMenuHelper class should help with this, and it works round some bugs with dynamic context menus. try:
SWTBotMenu menu =
new SWTBotMenu(ContextMenuHelper.contextMenu(bot.tree(), "Expand All"));
menu.click();
I have two three projects
1. framework
2. Repository
3. MVC Project
In framework project i implemented aspect
namespace FrameworkHelper.TestAspect
{
[Serializable]
[MulticastAttributeUsage(MulticastTargets.Method)]
public class CacheAspect : OnMethodBoundaryAspect
{
// This field will be set by CompileTimeInitialize and serialized at build time,
// then deserialized at runtime.
public string methodName;
// Method executed at build time.
public override void CompileTimeInitialize(MethodBase method, AspectInfo aspectInfo)
{
this.methodName = method.DeclaringType.FullName + "." + method.Name;
}
// This method is executed before the execution of target methods of this aspect.
public override void OnEntry(MethodExecutionArgs args)
{
}
// This method is executed upon successful completion of target methods of this aspect.
public override void OnSuccess(MethodExecutionArgs args)
{
}
}
}
And aspect implemented into repository project
[TestAspect]
public List<string> TestMethod()
{
}
, When we calling method TestMethod() from MVC project , aspect not working , what's wrong on this code.
Its working fine when we use with one assembly.
I created new project for test the scanario and uploading project into github you can go through and can test home index controller.
https://github.com/virenderkverma/PostSharp-Examples
Project - PostSharpMultipleAssemblyCall
You can test this project
Sorry Daniel, Its working fine with latest version of postsharp , right now using
Postsharp of 3.1.50.9
Before i used 3.1.48 , May be that's problem with old version.
Thanks
Is there a way to call a method in a Grails service, from a Scala class that is running on the same JVM?
I have seen something similar done from Groovy/Griffon but cannot figure out how to accomplish that in Grails. (http://www.jroller.com/aalmiray/entry/griffon_groovy_scala_working_together)
Basically, one of my Grails controllers calls some Scala code, which should return some values asynchronously. So, I guess, the only way to return those values is by calling back a method in a Grails service.
I found a way of doing it, inspired by the link in the question above, and one of the FAQs in the Grails website.
On the Scala side:
Declare an object similar to the following:
package scalaCallback
object ScalaCallback{
var cback: {def callback(example: String)} = null
def setCallback(cb: {def callback(example: String)}){
cback = cb
}
def invokeCallback(example: String){
if(callback != null) cback.callback(example)
}
}
On the Grails side:
Create a class in src/groovy similar to the following:
package groovyCallback
import org.codehaus.groovy.grails.commons.ApplicationHolder
class GroovyCallback{
private GroovyCallback() {}
private static final INSTANCE = new GroovyCallback()
static getInstance(){ return INSTANCE }
void callback(String example){
ApplicationHolder.application.mainContext.yourService.yourMethod(example)
}
}
In your BootStrap.groovy init add the following:
scalaCallback.cback = groovyCallback.GroovyCallback.getInstance()
When you call invokeCallback("example") in Scala, it will call yourService.yourMethod("example")
Note: the jar file with your Scala class should be in the lib folder of you Grails application
Your Grails service is a Spring bean. #Autowire the service into your Scala class (it will need to be a bean/#Component) and call the method.
EDIT - added example:
For example (using Java, not Scala but the approach is exactly the same):
Java code calling service:
package grailstest;
#Component
public class ServiceInjectionTester {
#Autowired TestService testService;
public String testTheService() {
return testService.serviceMethod();
}
}
Service:
class TestService {
String serviceMethod() {
return "success"
}
}
In Config.groovy:
grails.spring.bean.packages = [ "grailstest" ]
You can also wire your Java/Scala bean into your Grails classes:
class TestController {
#Autowired
ServiceInjectionTester serviceInjectionTester
def index = {
render(text: serviceInjectionTester.testTheService())
}
}
References:
Grails Reference 8.4 - Using Services from Java
Spring: The Foundation for Grails