B4J | development tool for cross platform desktop | Frontend Framework library
kandi X-RAY | B4J Summary
kandi X-RAY | B4J Summary
B4J is a development tool for cross platform desktop and server solutions: This repository includes most of B4J internal libraries source code. Currently we do not accept code contributions. Issues should be posted in the forum:
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Top functions reviewed by kandi - BETA
- Initialize the map
- Evaluates a directed route
- Creates a GoogleMap with the given options and options
- Returns the bearing of the specified end point
- Send a message
- Returns the number of bytes required to decode the source
- Decodes the given byte array
- Initialize the velocity constraints
- Calculates Sine LUT
- Initialize the clock
- Initialize the initial size
- RayCast function
- Starts the server
- Solves the position constraints
- Build the clock
- Initialize the main graphics
- Sets the skin type
- Solve position constraints
- Initialize the gauge
- Resizes the panel
- Initialize the graphics context
- Returns the position constraints
- Solves position constraints
- Solve the linear velocity constraints
- Expose the velocity constraints
- Create a CDATA node for a CDATA element
B4J Key Features
B4J Examples and Code Snippets
Community Discussions
Trending Discussions on B4J
QUESTION
On Raspberry Pi OS, I've tried to install multiple versions of Java with JavaFX in order to run [rbox.jar| https://www.radiosparx.com/sslbypass/str/app/rbox.jar]. Best Java version I've found was the one from https://bell-sw.com/, but even with it I was not able to make it work.
On most of them I get the following error:
...ANSWER
Answered 2020-Oct-01 at 18:36The error message is pretty clear, isn't it? The software is trying to show a document (probably some HTML help text or something like this) via the HostServices.showDocument
method and fails to find a browser on the Raspi. So the question is, do you have a browser installed on your Raspis? If not, do it. Otherwise look at the code in HostServicesDelegate$StandaloneHostService.showDocument
and see whether it can be located via its lookup method.
The relevant code can be found here: https://github.com/openjdk/jfx/blob/master/modules/javafx.graphics/src/main/java/com/sun/javafx/application/HostServicesDelegate.java
QUESTION
Basically, I'm creating an API. I have multiple endpoints, implemented as controllers. If an endpoint is called, it instantiates a parserclass, adds some options (like permitted parameters etc).
But now: If the parser fails, I want it to present a nice error, containing a link to the docs of the endpoint that actually failed.
I use b4j, which works on top of Java, so any relevant Java code should be easy to convert. In b4j, any endpoint is resembled by a class.
E.g. I have a 'getPOIByCity' endpoint.
If a user calls this method, a city parameter is required. If he/she omits the parameter, I want the user to be greeted with an error containing:
1 required parameter missing: city
See the documentation: http://www.link.to/doc/getPOIByCity
My first thought was to do some kind of stack tracing to know which class instantiated the parses class, but I cannot believe that is the way to do this.
C# has the slightly more elegant 'Caller information' attributes.
Any insights in how to do this?
...ANSWER
Answered 2019-May-05 at 14:03As another-dave already mentioned, it would make a lot more sense to delegate the exception to the calling class (the controller) and show the error from there.
But just to give an answer to your problem, you can use
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install B4J
You can use B4J 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 B4J 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 .
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