[英]Eclipse RCP e4 switch workspace programmatically
I would like to switch the workspace in a pure rcp e4 application in the code. 我想在代码中的纯rcp e4应用程序中切换工作区。 I found the old way that uses the org.eclipse.ui.internal.ide.actions.OpenWorkspaceAction
. 我发现了使用org.eclipse.ui.internal.ide.actions.OpenWorkspaceAction
的旧方法。
But this approach doesn't work in a pure e4 app because the application model has changed. 但是这种方法在纯e4应用程序中不起作用,因为应用程序模型已更改。
It does not appear to be possible to do this. 似乎无法执行此操作。
When you run a pure e4 application the main IApplication
is org.eclipse.e4.ui.internal.workbench.swt.E4Application
. 运行纯e4应用程序时,主要的IApplication
是org.eclipse.e4.ui.internal.workbench.swt.E4Application
。 This code does not support the special return code used to signal that a change of workspace is required. 该代码不支持用于指示需要更改工作空间的特殊返回码。
You can restart the existing workbench be calling IWorkbench.restart
. 您可以通过调用IWorkbench.restart
重新启动现有工作台。 IWorkbench
is org.eclipse.e4.ui.workbench.IWorkbench
which can be injected. IWorkbench
是可以注入的org.eclipse.e4.ui.workbench.IWorkbench
。
I got a solution for this problem: 我有解决此问题的方法:
The big problem with e4 is that the returing code will not be changed and equinox need a IApplication.EXIT_RESTART code. e4的最大问题是重试代码将不会更改,并且春分需要IApplication.EXIT_RESTART代码。
Workaround: - First implement the IApplication interface (see code below) 解决方法:-首先实现IApplication接口(请参见下面的代码)
public class FrameworkE4Application implements IApplication {
private static FrameworkE4Application application;
private Integer exit_code = IApplication.EXIT_OK;
private E4Application e4Application;
public static FrameworkE4Application getInstance() {
return application;
}
public void setRestartCode() {
exit_code = IApplication.EXIT_RESTART;
}
@Override
public Object start(IApplicationContext context) throws Exception {
application = this;
e4Application = new E4Application();
e4Application.start(context);
return exit_code;
}
@Override
public void stop() {
e4Application.stop();
}
}
Then you need to register your custom implementation with equinox. 然后,您需要向春分注册您的自定义实现。 For this extend the org.eclipse.core.runtime.applications
extension point (see below). 为此,请扩展org.eclipse.core.runtime.applications
扩展点(请参见下文)。
<extension id="FrameworkE4Application"
point="org.eclipse.core.runtime.applications">
<application>
<run class="FrameworkE4Application">
<parameter name="optimize" value="true"/>
</run>
</application>
</extension>
If you would like to start this as product you need to overwritte the org.eclipse.core.runtime.products
extension point (see below). 如果要将此作为产品启动,则需要改写org.eclipse.core.runtime.products
扩展点(请参见下文)。
<product
name="YourProduct"
application="FrameworkE4Application">
<property
name="appName"
value="ProductPath">
</property>
</product>
And here is a implementation of an action that restarts your application. 这是重新启动应用程序的操作的实现。
public class RestartApplicationAction {
@Execute
public void execute(IWorkbench workbench) {
FrameworkE4Application.getInstance().setRestartCode();
workbench.close();
}
}
Now you can set the new Location and restart the application with a new workspace. 现在,您可以设置新的位置并使用新的工作区重新启动应用程序。
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