Package edu.caltech.nanodb.functions

Class Sum

java.lang.Object

edu.caltech.nanodb.functions.Function

edu.caltech.nanodb.functions.ScalarFunction

edu.caltech.nanodb.functions.AggregateFunction

edu.caltech.nanodb.functions.SumAvgAggregate

edu.caltech.nanodb.functions.Sum

All Implemented Interfaces:

Cloneable

public class Sum
extends SumAvgAggregate

Implementation of the SUM(x) SQL aggregate function, computes the sum of its inputs. Returns NULL if no inputs are non-NULL.

Field Summary

Fields inherited from class edu.caltech.nanodb.functions.SumAvgAggregate

set

Constructor Summary

Constructors

Constructor	Description
Sum()

Method Summary

Methods inherited from class edu.caltech.nanodb.functions.SumAvgAggregate

addValue, clearResult, getResult, getReturnType

Methods inherited from class edu.caltech.nanodb.functions.AggregateFunction

supportsDistinct

Methods inherited from class edu.caltech.nanodb.functions.Function

clone

Methods inherited from class java.lang.Object

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

Constructor Details

Sum

public Sum()