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https://issues.apache.org/jira/browse/CASSANDRA-11392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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DOAN DuyHai updated CASSANDRA-11392:
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Summary: Add auto import java.util for UDF code block (was: Add IMPORT
block or auto import java.util for UDF code block)
> Add auto import java.util for UDF code block
> --------------------------------------------
>
> Key: CASSANDRA-11392
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11392
> Project: Cassandra
> Issue Type: Improvement
> Components: CQL
> Environment: C* 3.4
> Reporter: DOAN DuyHai
>
> Right now, when creating Java source code for UDF, since we cannot define
> import, we need to use fully qualified class name, ex:
> {noformat}
> CREATE FUNCTION toSet(li list<text>)
> CALLED ON NULL INPUT
> RETURNS text
> LANGUAGE java
> AS $$
> java.util.Set<String> set = new java.util.HashSet();
> for(String txt: list) {
> set.add(txt);
> }
> return set;
> $$;
> {noformat}
> Classes from {{java.util}} package are so commonly used that it makes
> developer life easier to import automatically {{java.util.*}} in the
> {{JavaUDF}} base class so that developers don't need to use FQCN for common
> classes.
> The only drawback I can see is the risk of class name clash but since:
> 1. it is not allow to create new class
> 2. classes that can be used in UDF are restricted
> I don't see serious clash name issues either
> [~snazy] WDYT ?
>
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