Eclipse Community Forums: TMF (Xtext) » AbstractMyDslProposalProvider

Search

Help

Login

Home » Modeling » TMF (Xtext) » AbstractMyDslProposalProvider(About creating AbstractMyDslProposalProvider)

Show: Today's Messages :: Show Polls :: Message Navigator

Switch to threaded view of this topic

Create a new topic

Submit Reply

AbstractMyDslProposalProvider [message #1720422]

Mon, 18 January 2016 14:55

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

Rolling Eyes

I have read that :

"Xtext gives us a class for this purpose, a ProposalProvider (MyDslProposalProvider), that extends AbstractMyDslProposalProvider"

However, In my project

both MyDslProposalProvider and AbstractMyDslProposalProvider is not created . Do I need to configure it . Should it automatically be created when I build my project.

Should I create it manually.

Any help on this will be much appreciated.

[Updated on: Mon, 18 January 2016 14:56]

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720423 is a reply to message #1720422]

Mon, 18 January 2016 15:06

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

Did you remove the fragment for content assist from your workflow

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720425 is a reply to message #1720423]

Mon, 18 January 2016 15:11

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

Thanks for your message .No. I have created a sample project from Intellij. Which file should I check to find whether it needs to be there?

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720431 is a reply to message #1720425]

Mon, 18 January 2016 15:29

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

this is the hook for eclipse.
the hook for intellij is MyDslCompletionContributor

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720511 is a reply to message #1720431]

Tue, 19 January 2016 06:29

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

Ok Thank You for your message. I am particularly interested in Web editor . The class MyDslCompletionContributor is in idea.completion . I would like to understand how can I configure web editor. Are there any examples?

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720514 is a reply to message #1720511]

Tue, 19 January 2016 06:59

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

hi dont know any complex examples. only this one
https://github.com/eclipse/xtext/blob/6f36b135c9643d4c2e9e4cd60104e1e93491d944/web/org.eclipse.xtext.web.example.statemachine.ide/src/org/eclipse/xtext/web/example/statemachine/ide/StatemachineWebContentProposalProvider.xtend
https://github.com/eclipse/xtext/blob/6c294a666b26c3df0e4b68694162dea49a8b9584/web/org.eclipse.xtext.web.example.jetty/src/main/java/org/eclipse/xtext/web/example/jetty/StatemachineWebModule.xtend

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720523 is a reply to message #1720514]

Tue, 19 January 2016 08:03

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

Razz

This is very useful Christian.
I would like to know whether I need to override both the methods "createProposals". I am just trying to use it like , if I am expecting an Employee type as the next word I should fetch few names from database .

So my rule says ,

Greeting Employee

"Hello " should assist me the names of Employee when Employee Rule is fired.

Am I correct to implement the above using the way you shared. Please suggest

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720528 is a reply to message #1720523]

Tue, 19 January 2016 08:20

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

In the Hello World Example you have

Greeting: "Hello" name=ID;

=>

Greeting is a rulecall
name= is an assignment
ID is a rulecall

=> you have to pick what fits best

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720537 is a reply to message #1720528]

Tue, 19 January 2016 08:43

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

Thank You Christian . Please have a look at the following.

I have added these classes based on the examples.

public class StatemachineWebModule extends AbstractMyDslWebModule {
public StatemachineWebModule(final Provider<ExecutorService> executorServiceProvider) {
super(executorServiceProvider);
}

public Class<? extends StatemachineWebContentProposalProvider> bindIdeContentProposalProvider() {
return StatemachineWebContentProposalProvider.class;
}
}

and

class StatemachineWebContentProposalProvider extends IdeContentProposalProvider {

@Inject extension MyDslGrammarAccess

override dispatch createProposals(RuleCall ruleCall, ContentAssistContext context,
IIdeContentProposalAcceptor acceptor) {
switch (ruleCall.rule) {

case getIDRule: {

if ('abc'.startsWith(context.prefix)) {
val trueEntry = new ContentAssistEntry => [
prefix = context.prefix
proposal = 'pqr'
]
acceptor.accept(trueEntry, proposalPriorities.getDefaultPriority(trueEntry))
}

}

default:
super._createProposals(ruleCall, context, acceptor)
}
}

}

I am trying to say that if my there is an ID which is 'abc' suggest 'pqr'

I am not getting content assist in the web ui editor.Does it look Ok.?

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720540 is a reply to message #1720537]

Tue, 19 January 2016 08:52

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

can you share your complete grammar?

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720542 is a reply to message #1720540]

Tue, 19 January 2016 08:57

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

this looks ok beside the if is the wrong way 'abc'.startsWith(context.prefix)
=> if the prefix is empty this always will be true

=> you get pqr suggested

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720543 is a reply to message #1720542]

Tue, 19 January 2016 08:58

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

p.s. the binding is wrong

public Class<? extends IdeContentProposalProvider> bindIdeContentProposalProvider() {
return StatemachineWebContentProposalProvider.class;
}

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720544 is a reply to message #1720540]

Tue, 19 January 2016 08:58

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

Model:
greetings=Query;

Query:
(key=QTypekeyWord)? person=Person

QTypekeyWord:
plot='hello'
;

Person:
per=ID
;

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720548 is a reply to message #1720544]

Tue, 19 January 2016 09:07

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

see answers above

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720628 is a reply to message #1720548]

Wed, 20 January 2016 03:17

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

Thanks for the reply. Could you guide me whats wrong with the binding.
Also ,I have corrected the equality match. But I am unable to get any content assist.

def Class<? extends IdeContentProposalProvider> bindIdeContentProposalProvider() {
return StatemachineWebContentProposalProvider
}

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720629 is a reply to message #1720628]

Wed, 20 January 2016 03:22

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

https://www.evernote.com/l/AHs5BNB5n5pFyqIj7cpC2aQ0pN2w5CQb6xs

This is the place where I have put the two files.(in the web module)

[Updated on: Wed, 20 January 2016 03:26]

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720632 is a reply to message #1720629]

Wed, 20 January 2016 05:07

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

Hi,

the webmodule is pregenerated you simply have to add the binding method there. you can pleace the StatemachineWebContentProposalProvider right next to it.
you can use remote debugging to see if your or the superclasses code is called.
of course you have to enable (is by default) and call content assist (space). this seems to work only if you type at least on char (if the document is empty)

p.s. you link seems not to work

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720649 is a reply to message #1720632]

Wed, 20 January 2016 08:07

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

Thank You. It works Smile

Smile

. While debugging I found that the proposal is added but it is not displayed on the screen . The below code executes on the rule match and "trueEntry" is created ,but I do not see the proposal on the screen. Please let me know if I am missing something.

This is my code.
override dispatch createProposals(RuleCall ruleCall, ContentAssistContext context,
IIdeContentProposalAcceptor acceptor) {
switch (ruleCall.rule) {

case getQTypekeyWordRule: {

if (context.prefix.startsWith('abc') ){
val trueEntry = new ContentAssistEntry => [
prefix = context.prefix
proposal = 'pqr'
]
acceptor.accept(trueEntry, proposalPriorities.getDefaultPriority(trueEntry))
}

}

default:super._createProposals(ruleCall, context, acceptor)
}
}

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720650 is a reply to message #1720649]

Wed, 20 January 2016 08:12

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

Sry have no idea on this
Did you debug the ace / xtext JavaScript code?

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720651 is a reply to message #1720650]

Wed, 20 January 2016 08:13

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

No I have not debugged the java script code. This code looks ok right ? Is there a chance of being overwritten later in the execution? What do you suggest?

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720654 is a reply to message #1720651]

Wed, 20 January 2016 08:22

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

You should return prefix+"par"

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720657 is a reply to message #1720654]

Wed, 20 January 2016 08:29

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

Ok. I see that Acceptor has the prosposal I want. But I dont see it in the screen Sad

Sad

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720659 is a reply to message #1720657]

Wed, 20 January 2016 08:34

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

My resultant JSON in XTextServlet But ,only one word is displayed.
ContentAssistResult[
stateId = "-7fffffff"
entries = ArrayList(
ContentAssistEntry[
prefix = "pl"
proposal = "falslke"
textReplacements = ArrayList() editPositions = ArrayList()
],
ContentAssistEntry[
prefix = "pl"
proposal = "plot"
textReplacements = ArrayList() editPositions = ArrayList()
]
)
]

[Updated on: Wed, 20 January 2016 08:35]

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720663 is a reply to message #1720659]

Wed, 20 January 2016 08:41

Christian Dietrich is currently offline

Christian Dietrich

Friend

Messages: 14665
Registered: July 2009

Senior Member

falslke
Does not start with pl
You should return plfalslke

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: AbstractMyDslProposalProvider [message #1720664 is a reply to message #1720659]

Wed, 20 January 2016 08:41

pranay roy is currently offline

Friend

Messages: 196
Registered: January 2016

Senior Member

doing prefix+"par" solved the issue . Thanks a lot . Smile

Smile

Now I can see the assist working Smile

Smile

Smile

Smile

Smile

Smile

Report message to a moderator

Switch to threaded view of this topic

Create a new topic

Submit Reply

Previous Topic:	web editor with code generation
Next Topic:	Primitive void cannot be a dependency.

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Wed Apr 24 17:56:51 GMT 2024

Powered by FUDForum. Page generated in 0.03780 seconds

.:: Contact :: Home ::.

Powered by: FUDforum 3.0.2.
Copyright ©2001-2010 FUDforum Bulletin Board Software

Back to the top