statem | gen state management based on Harel Statechart

 by   aksonov JavaScript Version: 0.6.0 License: BSD-2-Clause

kandi X-RAY | statem Summary

kandi X-RAY | statem Summary

statem is a JavaScript library typically used in User Interface applications. statem has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i statem' or download it from GitHub, npm.

Next-gen state management based on Harel Statechart and SCXML. The big problem with complex application state is how to understand it and see whole picture from source code. "A Picture Costs A Thousand Words" - it is true for application state as well. UML solves this problem but requires additional efforts from a developer to draw all state diagrams. David Harel in the 1980s introduced statechart (now it became part of UML specification) that solves problems above. SCXML or the "State Chart extensible Markup Language" - an XML language that provides a generic state-machine based execution environment based on Harel statecharts. It is W3C approved standard that allows you to describe all your states as XML file. SCXML is very flexible and allows you to define compound and parallel states (so our logged state will handle disconnect event and show disconnection error to user and all logged UI screens could inherit it and don't care about this event) as well as conditional transitions. Each state could have onEntry, onExit runnable actions and transitions could have such custom actions as well. This tool provides automatic code generation from given statechart and allow to manage whole state of your app visually.
Support
    Quality
      Security
        License
          Reuse

            kandi-support Support

              statem has a low active ecosystem.
              It has 33 star(s) with 4 fork(s). There are 5 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 1 open issues and 1 have been closed. On average issues are closed in 16 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of statem is 0.6.0

            kandi-Quality Quality

              statem has 0 bugs and 0 code smells.

            kandi-Security Security

              statem has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              statem code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              statem is licensed under the BSD-2-Clause License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              statem releases are not available. You will need to build from source code and install.
              Deployable package is available in npm.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of statem
            Get all kandi verified functions for this library.

            statem Key Features

            No Key Features are available at this moment for statem.

            statem Examples and Code Snippets

            No Code Snippets are available at this moment for statem.

            Community Discussions

            QUESTION

            "pthread_join" doesn't return on a just cancelled thread (with "pthread_cancel")
            Asked 2021-Jun-07 at 20:59

            I have a pool of threads (QueueWorkers class) in my program that are released using this logic:

            ...

            ANSWER

            Answered 2021-Jun-07 at 13:52

            Are sure the thread is in a cancelation or your thread cancelation_type is asynchronous?

            From man of pthread_cancel:

            A thread's cancellation type, determined by pthread_setcanceltype(3), may be either asynchronous or deferred (the default for new threads). Asynchronous cancelability means that the thread can be canceled at any time (usually immediately, but the system does not guarantee this). Deferred cancelability means that cancellation will be delayed until the thread next calls a function that is a cancellation point. A list of functions that are or may be cancellation points is provided in pthreads(7).

            I don't think canceling threads is the best ways to make sure that a thread will finish. Perhaps you can send the thread a message that it should stop and make sure the thread does receive the message and will handle it.

            Source https://stackoverflow.com/questions/67872576

            QUESTION

            Can I use a continue statement in a ternary operator ? (C)
            Asked 2021-Apr-28 at 20:08

            Can somebody explain how to use a continue statemant in a ternary operator?

            ...

            ANSWER

            Answered 2021-Apr-24 at 12:39

            Ternary Operators has some special rules.
            For example,you only can use expressions in these three parameters.
            But continue; is a complete sentence.So it can't work with Ternary Operators.
            if you have to use Ternary Operators with continue,you can try this:

            Source https://stackoverflow.com/questions/67242806

            QUESTION

            How to add trusted root CA to Docker alpine
            Asked 2021-Apr-26 at 06:38

            Suppose I am at network where there is MITM SSL swaping firewall (google.com is not issued by Google, but reissued by custom CA root authority) some more details here https://security.stackexchange.com/questions/107542/is-it-common-practice-for-companies-to-mitm-https-traffic .

            I have simple Dockerfile:

            ...

            ANSWER

            Answered 2021-Apr-25 at 16:06

            Append your self-signed cert to /etc/ssl/certs/ca-certificates.crt manually.

            Assuming you have the self-signed certificate in a file in your build directory called my-cert.pem:

            Source https://stackoverflow.com/questions/67231714

            QUESTION

            How can I list an output of files and let the user select them
            Asked 2021-Mar-10 at 17:04

            I have to do a bash script that shows disk usage and free space and if certain point is set as an argument of that script, allow user to select files that are greater than 10MB and delete them or pack and move them somewhere else and check if that point is satisfied if not repeat that action. So far for listing files from all of /home/$USER that are over 10MB i got this command line:

            ...

            ANSWER

            Answered 2021-Mar-10 at 17:04

            Paths are allowed to have any characters except zero byte. The only possible way to work safely with any files is to use zero separated streams. Note that you have to have GNU tools then as they support various -z/-0 options, or use a different programming language. A common trick is to put before the filename stuff that will have known format, and then put the filename. That way you can extract them with like a regex (or with cut -d' ' -f2-).

            Source https://stackoverflow.com/questions/66569053

            QUESTION

            Building Docker Image Using Kaniko tls_process_server_certificate:certificate verify failed
            Asked 2021-Feb-25 at 05:45

            I am trying to build a custom alpine docker image using Kaniko. When I attempt to use the APK package manager to download package, I see the following ssl error.

            ...

            ANSWER

            Answered 2021-Feb-25 at 05:45

            The issue was not due to configuration. The issue was due to alpine image. There is a bug with 13.3.2.

            I reverted my image to alpine3.12.

            Source https://stackoverflow.com/questions/66362755

            QUESTION

            IF else by group - check value in next row
            Asked 2021-Feb-24 at 05:29

            Here is a df for example:

            ...

            ANSWER

            Answered 2021-Feb-01 at 16:53
            test_df %>%
              group_by(plant_sp) %>%
              mutate(is_na_nest_row = +any(is.na(sp_rich)))
            # # A tibble: 20 x 3
            # # Groups:   plant_sp [5]
            #    plant_sp sp_rich is_na_nest_row
            #                    
            #  1 plant_1        1              0
            #  2 plant_1        1              0
            #  3 plant_2       NA              1
            #  4 plant_2        1              1
            #  5 plant_3       NA              1
            #  6 plant_3        1              1
            #  7 plant_3        0              1
            #  8 plant_3        0              1
            #  9 plant_3       NA              1
            # 10 plant_4        0              0
            # 11 plant_4        0              0
            # 12 plant_4        1              0
            # 13 plant_4        0              0
            # 14 plant_4        0              0
            # 15 plant_4        1              0
            # 16 plant_5        0              1
            # 17 plant_5       NA              1
            # 18 plant_5       NA              1
            # 19 plant_5        0              1
            # 20 plant_5       NA              1
            

            Source https://stackoverflow.com/questions/65995453

            QUESTION

            Android Studio- Java RecyclerView displaying more views(holders) than the number of rows in a Room Database
            Asked 2021-Feb-22 at 05:49

            1. Entity (table) CurrentyEntity.java

            ...

            ANSWER

            Answered 2021-Jan-15 at 08:36

            This is happening due to the following reason.

            The first time when you launch the application, It makes 3 entries in DB. 1 entry from RoomDb class( Jordan one), 2 entries from the Home Activity class.

            Now if you close the application by pressing the device back button and reopen it,It makes another 2 entries in DB ( Home Activities entry ( easy & letsee ). There will be no entry from RoomDB class ( Jordan one) because DB connection is still open. So

            Source https://stackoverflow.com/questions/65730100

            QUESTION

            How to visit node of ANTLR tree without using children
            Asked 2021-Jan-20 at 16:08

            I new one in using antlr and with my c# I am facing to problem in this very simple grammar:

            ...

            ANSWER

            Answered 2021-Jan-20 at 16:08

            I would suggest that, the more complex your grammar is the MORE you want to use explicit Lexer rules (ex: ADD: "+";) and the MORE you want to label the parts of your parser rules (like op=).

            These give you tools to write visitor/listener code that is easier to follow and less prone to errors.

            "Is there in IF statement possible to visit node value of my ANTLR tree which contains token '+' without using children?" -> yes, label the operator in your parse rule with the op= notation. Then you can refer to is by name rather than it's position within your children nodes.

            There really isn't an answer to making things easier while not doing the things you say you don't want to do.

            Trust me, start using tools like explicit Lexer rules and labelling the parts of your parser rules. You'll be glad you did in the long run.

            Source https://stackoverflow.com/questions/65812107

            QUESTION

            Is there a possibility to batch a select-query with SPARQL and RDF4J?
            Asked 2021-Jan-08 at 09:00

            I am working with a quite large dataset (around 500Mio-Triples) stored in graphDB Free and running on my local developer machine.

            I want to do some operations with the dataset with RDF4J and have to SELECT more or less the whole dataset. To do a test, I just SELECT the desired tuples. The code runs fine for the first Million tuples, after that it gets really slow since graphDB continues to allocate more RAM.

            Is there the possibility to do a SELECT-Query on very big datasets and get them in batches ?

            Basically I want just to "Iterate" trough some selected triples, so there should be no need to use that much RAM from graphDB. I can see that I allready get data in RDF4J before the query finishes, since it crashes (HeapSpaceError) only at about 1.4 Mio read tuples. Unfortunately somehow graphDB doesn't free the memory of the allready read tuples. Am I missing something?

            Thanks a lot for your help.

            ps. I allready set the usable heapSpace of graphDB to 20GB.

            The RDF4J (Java) Code looks like following:

            ...

            ANSWER

            Answered 2021-Jan-06 at 22:46

            I don't know immediately why the query given would be so costly, memory-wise, for GraphDB Free to execute, but generally a lot can depend on the shape and size of your dataset. Of course, doing a query that basically retrieves the entire database is not necessarily a wise thing to do in the first place.

            Having said that, there's a couple of things you can try. Working with LIMIT and OFFSET as a pagination mechanism is one way.

            Another option you could try is to split your query in two: one query retrieves all identifiers of resources you're interested in, and then you iterate over those and for each do a separate query to get the details (attributes and relations) for that particular resource.

            In your example, you could split on ?row, so you'd first do a query to get all rows for the given table:

            Source https://stackoverflow.com/questions/65593958

            QUESTION

            Nodejs axios error: tls_process_ske_dhe:dh key too small
            Asked 2020-Sep-21 at 17:39

            I confront with the following error when send request (in my local envirement):

            ...

            ANSWER

            Answered 2020-Sep-21 at 17:39

            The issue was with my node version. Updated from 10.19.0 to 12.18.4 and worked just fine.

            Source https://stackoverflow.com/questions/63996209

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install statem

            You can install using 'npm i statem' or download it from GitHub, npm.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

            Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items

            Find more libraries
            Install
          • npm

            npm i statem

          • CLONE
          • HTTPS

            https://github.com/aksonov/statem.git

          • CLI

            gh repo clone aksonov/statem

          • sshUrl

            git@github.com:aksonov/statem.git

          • Stay Updated

            Subscribe to our newsletter for trending solutions and developer bootcamps

            Agree to Sign up and Terms & Conditions

            Share this Page

            share link

            Explore Related Topics

            Consider Popular JavaScript Libraries

            freeCodeCamp

            by freeCodeCamp

            vue

            by vuejs

            react

            by facebook

            bootstrap

            by twbs

            Try Top Libraries by aksonov

            react-native-router-flux

            by aksonovJavaScript

            react-native-tabs

            by aksonovJavaScript

            react-native-redux-router

            by aksonovJavaScript

            react-native-router-native

            by aksonovJavaScript