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General Question about Handlers & Commands [message #484494]

Mon, 07 September 2009 18:25

kent gibson

Messages: 114
Registered: July 2009

Senior Member

I can set state to a command using the State object, but what is the exact
same paradigm for a handler? In other words how to I set set State or
something similiar to a handler. The handler parameters will not work for
me because they only support strings.

thanks.

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Re: General Question about Handlers & Commands [message #484523 is a reply to message #484494]

Tue, 08 September 2009 05:40

Lars Vogel

Messages: 1098
Registered: July 2009

Senior Member

Hi,

I'm not sure if that is your question but you can use your own
AbstractSourceProvider for example to enable your commands.

This is described here:
http://www.vogella.de/articles/EclipseCommands/article.html# commmands_sourceprovider

Best regards, Lars

--
http://www.vogella.de/ - Eclipse plugin and Eclipse RCP Tutorials
http://www.twitter.com/vogella - vogella on Twitter

kentusha wrote:
> I can set state to a command using the State object, but what is the
> exact same paradigm for a handler? In other words how to I set set State
> or something similiar to a handler. The handler parameters will not work
> for me because they only support strings.
>
> thanks.
>

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Re: General Question about Handlers & Commands [message #485205 is a reply to message #484523]

Thu, 10 September 2009 19:24

kent gibson

Messages: 114
Registered: July 2009

Senior Member

thanks, very interesting article.

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Re: General Question about Handlers & Commands [message #485365 is a reply to message #484494]

Fri, 11 September 2009 13:53

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

Once you inform the command that it has a state object, you can easily get access to the state by subclassing org.eclipse.core.commands.AbstractHandlerWithState

When a handler becomes active, it is handed the current state from the Command.

PW

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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