Package org.apache.cassandra.cql3.functions

Class CollectionFcts

java.lang.Object

org.apache.cassandra.cql3.functions.CollectionFcts

public class CollectionFcts
extends Object

Native CQL functions for collections (sets, list and maps).

All the functions provided here are NativeScalarFunction, and they are meant to be applied to single collection values to perform some kind of aggregation with the elements of the collection argument. When possible, the implementation of these aggregation functions is based on the accross-rows aggregation functions available on AggregateFcts, so both across-rows and within-collection aggregations have the same behaviour.

Constructor Summary

Constructors

Constructor	Description
CollectionFcts()

Method Summary

Modifier and Type	Method	Description
static void	addFunctionsTo(NativeFunctions functions)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CollectionFcts

public CollectionFcts()

Method Details

addFunctionsTo

public static void addFunctionsTo(NativeFunctions functions)