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Outline View In Xtext [message #1184294]

Wed, 13 November 2013 10:59

Arshad Adavani

Messages: 163
Registered: July 2013
Location: Bangalore

Senior Member

Hi all,
I will tell you my outline view structure first.

Root
  |
  |__ Sub_Root
            |
            |__ Element_1
                      |
                      |__ property_1
                      |
                      |__ property_2
                      |
                      |__ property_3
            |
            |__ Element_2
                      |
                      |__ property_1
                      |
                      |__ property_2
                      |
                      |__ property_3
            |
            |__ Element_n

So basically what I have done is, I am overriding _createChildren method for my Root and I am calling a sub function to create Sub_Root and from this function to Create Element and then Properties.

Problem is even if I press enter keyword in my editor , complete Outline is getting refreshed and hence a performance issue for me.
I understand that I need to override _createChildren for all the types instead of calling function from a function.

But Can someone give me an idea how can I maintain the SAME STRUCTURE MENTIONED ABOVE. And if someone has some reference code then please do share it.
Basically I need something like, If I am modifying something only that part or that object is recreated.

Thanks in advance Smile

Arshad

[Updated on: Wed, 13 November 2013 11:07]

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Re: Outline View In Xtext [message #1184496 is a reply to message #1184294]

Wed, 13 November 2013 13:49

Uli Merkel

Messages: 250
Registered: June 2013

Senior Member

perhaps you can give us your grammar as well, so we can see what you want to change in your outline.

There is an neatly commented and explained example in Lorenzo Bettinis book:
Implementing Domain-Specific Languages with Xtext and Xtend on page 109.

For me, it looked like one has only to define it for a specific Class:
all the other nodes will be done according to standards.

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Re: Outline View In Xtext [message #1194230 is a reply to message #1184496]

Mon, 18 November 2013 11:57

Arshad Adavani

Messages: 163
Registered: July 2013
Location: Bangalore

Senior Member

Hello Uli,
Thanks a lot for replying back to my question.
I was just trying out with an organization structure.
Root Node is Organization, Organization can have Departments, Departments can have Employees, Employees can have attributes like name, address etc. This is my simple grammar and I want to follow the structure in my outline view as I have mentioned above. I am getting the right output but it is getting refreshed completely each time I type something even if a new line character.

Thanks in advance for your help Smile

Arshad

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Re: Outline View In Xtext [message #1196164 is a reply to message #1194230]

Tue, 19 November 2013 09:24

Uli Merkel

Messages: 250
Registered: June 2013

Senior Member

AFAIK, if you have your classes and each mas a name=ID, the default outline routine will deliver the outline you mentioned already.

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Re: Outline View In Xtext [message #1196357 is a reply to message #1196164]

Tue, 19 November 2013 11:27

Arshad Adavani

Messages: 163
Registered: July 2013
Location: Bangalore

Senior Member

HI Uli,
Thanks for your reply.
Yes But many times I get "unnamed" node in the outline, so I wrote my own outline code.

Arshad

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