Re: [e4-dev] Question for the template code from the e4 wizard

[Lars Vogel <lars.vogel@xxxxxxxxx>]

Anyone with a example why these @Named tags are useful in a handler? Otherwise I remove them.

2013/9/12 Lars Vogel <lars.vogel@xxxxxxxxx>

Hello,

The example code from the e4 wizard uses  @Named(ServiceConstants.ACTIVE_*) regulary. For example:

@Execute

public void execute(

IEclipseContext context,

@Named(IServiceConstants.ACTIVE_SHELL) Shell shell,

@Named(IServiceConstants.ACTIVE_PART) final MContribution contribution)

throws InvocationTargetException, InterruptedException {

............

}

AFAIK these service constants are useless in a handler, as the handler is always executed in the active context.

Is anyone aware of a situation in which @Inject MPart would fail (in a handler class) and the usage of  @Named(IServiceConstants.ACTIVE_PART) would return the correct part?

I'm unable to construct one, so I'm thinking about changing the template code.

I understand that the constants are useful somewhere else, e.g. another part but IMHO not in a handler.

Best regards, Lars