JFile | File Persistence and High Throughput In-Memory Database | Database library

 by   laforge49 Java Version: Current License: No License

kandi X-RAY | JFile Summary

kandi X-RAY | JFile Summary

JFile is a Java library typically used in Database applications. JFile has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can download it from GitHub, Maven.

File Persistence and High Throughput In-Memory Database. JFile builds on JActor and Jid, adding file persistence and an in-memory data base that has a throughput of 1 million transactions per second when running on an i7 with SSD. Downloads: Blog: Documentation: VCS: Issues: Google groups: Available on The Central Repository (Maven): So you just need to add this to your POM file: org.agilewiki.jfile jfile 2.0.10 (Be sure to update the version number appropriately, of course.).

            kandi-support Support

              JFile has a low active ecosystem.
              It has 37 star(s) with 4 fork(s). There are 8 watchers for this library.
              It had no major release in the last 6 months.
              There are 2 open issues and 1 have been closed. On average issues are closed in 6 days. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of JFile is current.

            kandi-Quality Quality

              JFile has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              JFile 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.

            kandi-Reuse Reuse

              JFile releases are not available. You will need to build from source code and install.
              Deployable package is available in Maven.
              Build file is available. You can build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed JFile and discovered the below as its top functions. This is intended to give you an instant insight into JFile implemented functionality, and help decide if they suit your requirements.
            • Opens the DB file
            • Reads the root jid from a block
            • Processes the log file
            • Returns a transaction log reader
            • Initialize database
            • Returns a durable transaction logger
            • Returns the transaction aggregator
            • Add a checkpoint
            • Initializes the actor factory
            • Update the root jid bytes after the header
            • Get the RootJid represented by this mailbox
            • Serialize the header into bytes
            • Process a block block
            • Process a block request
            • Clears the directory
            • Sends the raw header information to disk
            Get all kandi verified functions for this library.

            JFile Key Features

            No Key Features are available at this moment for JFile.

            JFile Examples and Code Snippets

            No Code Snippets are available at this moment for JFile.

            Community Discussions


            How can I obtain an attached file from a record using the C# REST web services
            Asked 2021-Jul-19 at 21:37

            I'm trying to retrieve an attached file (or files) from a record in Acumatica. I'm using the following example:


            I've attached a file to the demo inventory stock item "AACOMPUT01".

            Most of the code runs as expected, but when it gets to the code line:



            Answered 2021-Jul-19 at 21:37

            Execute a GET request on StockItem endpoint with the expand files option: http://localhost/Acumatica/entity/Default/20.200.001/StockItem/AACOMPUT01?$expand=files

            This returns the files array:

            Source https://stackoverflow.com/questions/68443659


            Flatten function retrieving the wrong value
            Asked 2021-Mar-25 at 16:08

            I currently have a Python script which uses a flatten function in order to flatten a JSON object, which I will then use json_normalize to turn the flattened JSON into a DataFrame.



            Answered 2021-Mar-25 at 12:40

            Your flattening function is wrong: with the given jfile it only returns one row, when 5 would be expected.

            Here is a correct version:

            Source https://stackoverflow.com/questions/66796742


            python 'str' object has no attribute 'items'
            Asked 2021-Feb-13 at 06:15

            i was trying to loop on txt files which contain dictionary
            my code is reading it as string also tried changing those txt file to json but as those words are in single quotes so it say:
            Expecting property name enclosed in double quotes



            Answered 2021-Feb-13 at 06:12

            The problem is that read() returns a string, and a string doesn't have any attribute 'items' unlike dictionaries. The other answer which suggested using readlines() is incorrect as well because that would just return a list. (Edit : looks like the answer got deleted, but nevertheless).

            Two things:

            1. I assume you copied your text data incorrectly, there was a ] bracket missing at the end.

            2) json.load() would have been a great solution to the problem had your data used double quotes instead of single quotes. Turns out even had the data had double quotes, the integer keys and tuples would be a problem like MisterMiyagi pointed out in the comments.

            Anyway one work around is to use ast.literal_eval() (which is a bit safer than raw eval)

            Source https://stackoverflow.com/questions/66182058


            Replacing special characters not working in Pandas
            Asked 2021-Feb-12 at 14:21

            I am trying to remove special characters from a string, but when I export the Pandas dataframe as a CSV, I can still see the special characters.

            Does anyone know why that is?

            Current Code:



            Answered 2021-Feb-12 at 14:21

            This seems the pandas Encoding problem. Try to read/load your file with the appropriate encoding.

            Source https://stackoverflow.com/questions/66173444


            Add tests to java classpath vscode
            Asked 2020-Dec-06 at 01:10

            This is my current setup:



            Answered 2020-Dec-06 at 01:10

            You can try right click the folder test and select Add Folder to Java Source Path

            Source https://stackoverflow.com/questions/65140290


            var from shared libraries, switch to Jenkinsfile stage - No such property: value1 for class: groovy.lang.Binding
            Asked 2020-Nov-15 at 10:34

            Again with the old groovy.lang.MissingPropertyException: No such property: value1 for class: groovy.lang.Binding ...

            I keep running into these things, this time with a shared library running a switch statement.

            Any ideas on how to read the variables (value1, env) that are set in the library (that echoes the variables just fine) to the Jenkinsfile (that doesn't get the variables)?

            I'm expecting: jfile values are "some-dev-value" and dev




            Answered 2020-Nov-09 at 15:30


            Building a dynamic table with jinja2, html and flask
            Asked 2020-Sep-10 at 16:52
                    {% for item in items %}    
                    {% endfor %}    


            Answered 2020-Sep-10 at 16:52

            You just need a loop counter:

            Source https://stackoverflow.com/questions/63833699


            Writing postgres bytea to json
            Asked 2020-Jun-23 at 06:15


            I have a column in postgres of type bytea. This data was originally a string that was input by a user, and after encryption (the output being bytea) was saved in the db.


            I want to read the stuff column (bytea) and save it in json form in a file so that I can retrieve it later. I want the stuff data to be saved in bytea format in json as I do not have the decryption key to decrypt the data to a string.

            Are there better ways of doing this? Is my approach too naive?

            What I have tried:



            Answered 2020-Jun-23 at 06:15

            If you really need to store binary data in a JSON, you will have to encode it as string, for example with

            Source https://stackoverflow.com/questions/62523600


            Xamarin for android: unable to play mp3 from external folder
            Asked 2020-Jun-10 at 16:39

            I am unable to play an mp3 file that I placed in the files folder of my application's external storage.

            I requested the permission in OnCreate()



            Answered 2020-Jun-10 at 16:39

            I found an answer online, but lost the original author so is how to play an mp3 from an external sd card on xamarain:

            Source https://stackoverflow.com/questions/62284025


            How to add newline between the 2 objects in JSON response ? And also how to remove the [ ] square brackets from the json file?
            Asked 2020-May-07 at 11:49

            I tried using line.separator and \n as well. But its not working. Here is my code :



            Answered 2020-May-07 at 11:49
            ResultSetMetaData rsmd = rs.getMetaData();
            JSONArray jsonArr = new JSONArray();
            while (rs.next()) {
                int numColumns = rsmd.getColumnCount();
                JSONObject obj = new JSONObject();
                for (int i = 1; i <= numColumns; i++) {
                       String column_name = rsmd.getColumnName(i);
                       obj.put(column_name, rs.getObject(column_name));
            //add this JSONArray to another JSONObject 
            JSONObject rootJSONObject = new JSONObject();
            PrintWriter printWriter = new PrintWriter("sample.json");
            printWriter.write(rootJSONObject.toString(4).replace("{", "\n{\n").replace("}", "\n}\n"));

            Source https://stackoverflow.com/questions/61650821

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


            No vulnerabilities reported

            Install JFile

            You can download it from GitHub, Maven.
            You can use JFile 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 JFile 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 .


            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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