Robert Stupp created CASSANDRA-8289:
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Summary: Allow users to debug/test UDF
Key: CASSANDRA-8289
URL: https://issues.apache.org/jira/browse/CASSANDRA-8289
Project: Cassandra
Issue Type: New Feature
Reporter: Robert Stupp
Assignee: Robert Stupp
Fix For: 3.0
Currently it's not possible to execute unit tests against UDFs nor is it
possible to debug them.
Idea is to provide some kind of minimalistic "framework" to execute at least
scalar UDFs from a unit test.
Basically that UDF-executor would take the information that 'CREATE FUNCTION'
takes, compiles that UDF and allows the user to call it using plain java calls.
It case of the Java language it could also generate Java source files to enable
users to set breakpoints.
For example:
{code}
import org.apache.cassandra.udfexec.*
public class MyUnitTest {
@Test
public void testIt() {
UDFExec sinExec = UDFExec.compile("sin", "java",
Double.class, // return type
Double.class // argument type(s)
);
sinExec.call(2.0d);
sinExec.call(null);
}
}
{code}
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