To use an R variable as a Java object, one can create a closure or list of functions that implement the methods of that Java class. The template of such a closure can be generated automatically using the reflectance capabilities of both Java and R. This function generates such a template and can be used as an initial step in implementing an R version of a Java class.
the name of the Java class or interface whose methods are to be duplicated locally via R functions. This is resolved using the usual Omegahat rules so this can be a partially qualified class name.
The name of a file to which the template functions are written. This can then be edited to provide an implementation of the Java class via an R object.
This is useful for allowing an R object to be converted to a proxy
Java object. For example, consider using an R object as a callback
for a Swing button. The object must implement the
actionPerformed() method of the
function calls the Omegahat evaluator's
getMethods() method to
retrieve a list of Java method descriptions and then converts
them to an R closure definition.
This function has the side-effect of writing the definition of a function closure definition to standard output (the console) or to a file. In the future, we will generate the actual function objects. The idea is merely to show the possibilities available to us using reflectance.
Duncan Temple Lang
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.