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mongodb-revision-objects | Versioned objects in MongoDB | SQL Database library

 by   dwatrous Java Version: Current License: No License

 by   dwatrous Java Version: Current License: No License

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kandi X-RAY | mongodb-revision-objects Summary

mongodb-revision-objects is a Java library typically used in Database, SQL Database, MongoDB applications. mongodb-revision-objects has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can download it from GitHub.
This project explores mechanisms to manage versioned data. For example, some data is bound by historical retention policies or user rollback functionality. In order to accomplish this, it’s necessary to ensure that previous versions of an object are retained.
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Quality
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Security
Security
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License
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kandi-support Support

  • mongodb-revision-objects has a low active ecosystem.
  • It has 16 star(s) with 3 fork(s). There are 3 watchers for this library.
  • It had no major release in the last 12 months.
  • mongodb-revision-objects has no issues reported. There are no pull requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of mongodb-revision-objects is current.
This Library - Support
Best in #SQL Database
Average in #SQL Database
This Library - Support
Best in #SQL Database
Average in #SQL Database

quality kandi Quality

  • mongodb-revision-objects has 0 bugs and 0 code smells.
This Library - Quality
Best in #SQL Database
Average in #SQL Database
This Library - Quality
Best in #SQL Database
Average in #SQL Database

securitySecurity

  • mongodb-revision-objects has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • mongodb-revision-objects code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
This Library - Security
Best in #SQL Database
Average in #SQL Database
This Library - Security
Best in #SQL Database
Average in #SQL Database

license License

  • mongodb-revision-objects does not have a standard license declared.
  • Check the repository for any license declaration and review the terms closely.
  • Without a license, all rights are reserved, and you cannot use the library in your applications.
This Library - License
Best in #SQL Database
Average in #SQL Database
This Library - License
Best in #SQL Database
Average in #SQL Database

buildReuse

  • mongodb-revision-objects releases are not available. You will need to build from source code and install.
  • Build file is available. You can build the component from source.
  • Installation instructions are not available. Examples and code snippets are available.
  • mongodb-revision-objects saves you 369 person hours of effort in developing the same functionality from scratch.
  • It has 880 lines of code, 135 functions and 29 files.
  • It has low code complexity. Code complexity directly impacts maintainability of the code.
This Library - Reuse
Best in #SQL Database
Average in #SQL Database
This Library - Reuse
Best in #SQL Database
Average in #SQL Database
Top functions reviewed by kandi - BETA

kandi has reviewed mongodb-revision-objects and discovered the below as its top functions. This is intended to give you an instant insight into mongodb-revision-objects implemented functionality, and help decide if they suit your requirements.

  • Main method .
    • Installs the MongoDB .
      • Adds a person to the history .
        • Publishes a person in the history .
          • Get a person by name .
            • Get MongoDB instance .
              • Gets the first name .
                • Get the age .
                  • Enables the preview mode currently active
                    • Set the person .

                      Get all kandi verified functions for this library.

                      Get all kandi verified functions for this library.

                      mongodb-revision-objects Key Features

                      Versioned objects in MongoDB

                      default

                      copy iconCopydownload iconDownload
                      Injector injector = Guice.createInjector(new MorphiaModule());
                      
                      // get a PersonDAO
                      PersonDAO personDao = injector.getInstance(PersonDAO.class);
                      
                      // create a person object
                      PersonNameFactory personNameFactory = injector.getInstance(PersonNameFactory.class);
                      PersonFactory personFactory = injector.getInstance(PersonFactory.class);
                      
                      PersonName name = personNameFactory.create("Danny", "Watrous");
                      Person publishedPerson = personFactory.create(name, 15, "daniel@beforeinternet.com", true);
                      
                      // save a new Person
                      personDao.save(publishedPerson);
                      
                      // get the person we just saved above
                      Person retrievedPerson = personDao.getPersonByName(name);
                      
                      // update and safe Draft
                      retrievedPerson.getName().setFirstName("Dan");
                      retrievedPerson.setAge(23);
                      retrievedPerson.setEmail("daniel@oldschool.com");
                      personDao.saveDraft(retrievedPerson);
                      
                      // or publish (this automatically manages history)
                      personDao.publish(retrievedPerson);

                      Community Discussions

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                      QUESTION

                      psql: error: connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such file or directory

                      Asked 2022-Apr-04 at 15:46

                      Not really sure what caused this but most likely exiting the terminal while my rails server which was connected to PostgreSQL database was closed (not a good practice I know but lesson learned!)

                      I've already tried the following:

                      1. Rebooting my machine (using MBA M1 2020)
                      2. Restarting PostgreSQL using homebrew brew services restart postgresql
                      3. Re-installing PostgreSQL using Homebrew
                      4. Updating PostgreSQL using Homebrew
                      5. I also tried following this link but when I run cd Library/Application\ Support/Postgres terminal tells me Postgres folder doesn't exist, so I'm kind of lost already. Although I have a feeling that deleting postmaster.pid would really fix my issue. Any help would be appreciated!

                      ANSWER

                      Answered 2022-Jan-13 at 15:19
                      Resetting PostgreSQL

                      My original answer only included the troubleshooting steps below, and a workaround. I now decided to properly fix it via brute force by removing all clusters and reinstalling, since I didn't have any data there to keep. It was something along these lines, on my Ubuntu 21.04 system:

                      sudo pg_dropcluster --stop 12 main
                      sudo pg_dropcluster --stop 14 main
                      sudo apt remove postgresql-14
                      sudo apt purge postgresql*
                      sudo apt install postgresql-14
                      

                      Now I have:

                      $ pg_lsclusters
                      Ver Cluster Port Status Owner    Data directory              Log file
                      14  main    5432 online postgres /var/lib/postgresql/14/main /var/log/postgresql/postgresql-14-main.log
                      

                      And sudo -u postgres psql works fine. The service was started automatically but it can be done manually with sudo systemctl start postgresql.

                      Incidentally, I can recommend the PostgreSQL docker image, which eliminates the need to bother with a local installation.

                      Troubleshooting

                      Although I cannot provide an answer to your specific problem, I thought I'd share my troubleshooting steps, hoping that it might be of some help. It seems that you are on Mac, whereas I am running Ubuntu 21.04, so expect things to be different.

                      This is a client connection problem, as noted by section 19.3.2 in the docs.

                      The directory in my error message is different:

                      $ sudo su postgres -c "psql"
                      psql: error: connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" failed: No such file or directory
                              Is the server running locally and accepting connections on that socket?
                      

                      I checked what unix sockets I had in that directory:

                      $ ls -lah /var/run/postgresql/
                      total 8.0K
                      drwxrwsr-x  4 postgres postgres  160 Oct 29 16:40 .
                      drwxr-xr-x 36 root     root     1.1K Oct 29 14:08 ..
                      drwxr-s---  2 postgres postgres   40 Oct 29 14:33 12-main.pg_stat_tmp
                      drwxr-s---  2 postgres postgres  120 Oct 29 16:59 14-main.pg_stat_tmp
                      -rw-r--r--  1 postgres postgres    6 Oct 29 16:36 14-main.pid
                      srwxrwxrwx  1 postgres postgres    0 Oct 29 16:36 .s.PGSQL.5433
                      -rw-------  1 postgres postgres   70 Oct 29 16:36 .s.PGSQL.5433.lock
                      

                      Makes sense, there is a socket for 5433 not 5432. I confirmed this by running:

                      $ pg_lsclusters
                      Ver Cluster Port Status                Owner    Data directory              Log file
                      12  main    5432 down,binaries_missing postgres /var/lib/postgresql/12/main /var/log/postgresql/postgresql-12-main.log
                      14  main    5433 online                postgres /var/lib/postgresql/14/main /var/log/postgresql/postgresql-14-main.log
                      

                      This explains how it got into this mess on my system. The default port is 5432, but after I upgraded from version 12 to 14, the server was setup to listen to 5433, presumably because it considered 5432 as already taken. Two alternatives here, get the server to listen on 5432 which is the client's default, or get the client to use 5433.

                      Let's try it by changing the client's parameters:

                      $ sudo su postgres -c "psql --port=5433"
                      psql (14.0 (Ubuntu 14.0-1.pgdg21.04+1))
                      Type "help" for help.
                      
                      postgres=#
                      

                      It worked! Now, to make it permanent I'm supposed to put this setting on a psqlrc or ~/.psqlrc file. The thin documentation on this (under "Files") was not helpful to me as I was not sure on the syntax and my attempts did not change the client's default, so I moved on.

                      To change the server I looked for the postgresql.conf mentioned in the documentation but could not find the file. I did however see /var/lib/postgresql/14/main/postgresql.auto.conf so I created it on the same directory with the content:

                      port = 5432
                      

                      Restarted the server: sudo systemctl restart postgresql

                      But the error persisted because, as the logs confirmed, the port did not change:

                      $ tail /var/log/postgresql/postgresql-14-main.log
                      ...
                      2021-10-29 16:36:12.195 UTC [25236] LOG:  listening on IPv4 address "127.0.0.1", port 5433
                      2021-10-29 16:36:12.198 UTC [25236] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5433"
                      2021-10-29 16:36:12.204 UTC [25237] LOG:  database system was shut down at 2021-10-29 16:36:12 UTC
                      2021-10-29 16:36:12.210 UTC [25236] LOG:  database system is ready to accept connections
                      

                      After other attempts did not succeed, I eventually decided to use a workaround: to redirect the client's requests on 5432 to 5433:

                      ln -s /var/run/postgresql/.s.PGSQL.5433 /var/run/postgresql/.s.PGSQL.5432
                      

                      This is what I have now:

                      $ ls -lah /var/run/postgresql/
                      total 8.0K
                      drwxrwsr-x  4 postgres postgres  160 Oct 29 16:40 .
                      drwxr-xr-x 36 root     root     1.1K Oct 29 14:08 ..
                      drwxr-s---  2 postgres postgres   40 Oct 29 14:33 12-main.pg_stat_tmp
                      drwxr-s---  2 postgres postgres  120 Oct 29 16:59 14-main.pg_stat_tmp
                      -rw-r--r--  1 postgres postgres    6 Oct 29 16:36 14-main.pid
                      lrwxrwxrwx  1 postgres postgres   33 Oct 29 16:40 .s.PGSQL.5432 -> /var/run/postgresql/.s.PGSQL.5433
                      srwxrwxrwx  1 postgres postgres    0 Oct 29 16:36 .s.PGSQL.5433
                      -rw-------  1 postgres postgres   70 Oct 29 16:36 .s.PGSQL.5433.lock
                      

                      This means I can now just run psql without having to explicitly set the port to 5433. Now, this is a hack and I would not recommend it. But in my development system I am happy with it for now, because I don't have more time to spend on this. This is why I shared the steps and the links so that you can find a proper solution for your case.

                      Source https://stackoverflow.com/questions/69754628

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

                      Vulnerabilities

                      No vulnerabilities reported

                      Install mongodb-revision-objects

                      You can download it from GitHub.
                      You can use mongodb-revision-objects like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the mongodb-revision-objects component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

                      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 .

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