Including Java files in R Package
Duncan Murdoch wrote:
On 15/04/2008 7:20 PM, Hongshu Chen wrote:
Hi, I am building a package which contains some Java class files. I am planning to create a subdirectory "inst/Java/" in the source directory and put Java files in it, therefore after installing the package, those files will be in the "Java/" subdirectory in where the package is installed. My question is, how can I make references to those Java files in the R source files in my package? Or is there a better way to do this?
I assume you just want to know how to find them, you already know how to
use them once you've found them.
The path to the Java/ subdir is given by
system.file("Java", package="yourPackage")
and so the file my.class is in
file.path(system.file("Java", package="yourPackage"), "my.class")
I made a dummy example package on how to interface to Java code inside a package - the steps are explained in the vignette inside the package. http://www.openanalytics.be/doc/helloJavaWorld_0.0-3.tar.gz It is planned to contribute this to CRAN or the rJava website (if it is deemed useful and when it will be a bit more mature) - feedback welcome. HTH, Tobias