jnew {rJava} | R Documentation |
.jnew
create a new Java object
.jnew(class, ..., check=TRUE, silent=!check)
class |
fully qualified class name in JNI notation (e.g. "java/lang/String" ). |
... |
Any parametes that will be passed to the corresponding
constructor. The parameter types are determined automatically and/or
taken from the jobjRef object. For details see
.jcall . Note that all named parameters are discarded. |
check |
If set to TRUE then .jcheck is invoked before
and after the call to the constructor to clear any pending Java
exceptions. |
silent |
If set to FALSE then .jnew will fail with an error if
the object cannot be created, otherwise a null-reference is returned
instead. In addition, this flag is also passed to final
.jcheck if check above is set to TRUE . Note
that the error handling also clears exceptions, so
check=FALSE, silent=FALSE is usually not a meaningful
combination.
|
Returns the reference (jobjRef
) to the newly created object or
null
-reference (see .jnull
) if something went wrong.
## Not run: f <- .jnew("java/awt/Frame","Hello") .jcall(f,,"setVisible",TRUE) ## End(Not run)