jarray: Instantiate a Java array with a specific element type.
In rstudio/sparklyr: R Interface to Apache Spark

jarray

R Documentation

Instantiate a Java array with a specific element type.

Description

Given a list of Java object references, instantiate an Array[T] containing the same list of references, where T is a non-primitive type that is more specific than java.lang.Object.

Usage

jarray(sc, x, element_type)

Arguments

`sc`	A `spark_connection`.
`x`	A list of Java object references.
`element_type`	A valid Java class name representing the generic type parameter of the Java array to be instantiated. Each element of `x` must refer to a Java object that is assignable to `element_type`.

Examples

sc <- spark_connect(master = "spark://HOST:PORT")

string_arr <- jarray(sc, letters, element_type = "java.lang.String")
# string_arr is now a reference to an array of type String[]

rstudio/sparklyr documentation built on Sept. 18, 2024, 6:10 a.m.