net.sf.jett.expression
Class JaggFuncs

java.lang.Object
  net.sf.jett.expression.JaggFuncs

public class JaggFuncs
extends java.lang.Object

A JaggFuncs object is an object that represents jAgg aggregate functionality in the JEXL world.

Author:

Randy Gettman

Constructor Summary

JaggFuncs()

Method Summary

static java.lang.Object

eval(java.util.List<java.lang.Object> values, java.lang.String aggSpecString) Have jAgg evaluate an Aggregate Expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

JaggFuncs

public JaggFuncs()

Method Detail

eval

public static java.lang.Object eval(java.util.List<java.lang.Object> values,
                                    java.lang.String aggSpecString)

Have jAgg evaluate an Aggregate Expression.

Parameters:

values - A List of values to aggregate.

aggSpecString - An aggregator specification string, e.g. "Count(*)", "Sum(quantity)".

Returns:

The result of the aggregate operation.