io.warp10.script.aggregator

Class Rate

java.lang.Object

io.warp10.script.NamedWarpScriptFunction

io.warp10.script.aggregator.Rate

All Implemented Interfaces:

WarpScriptAggregatorFunction, WarpScriptBucketizerFunction, WarpScriptMapperFunction, WarpScriptReducerFunction

public class Rate
extends NamedWarpScriptFunction
implements WarpScriptMapperFunction, WarpScriptBucketizerFunction, WarpScriptReducerFunction

Returns the rate of change (per second) between the first and last measures of the interval. Location and elevation returned are those of the latest measure.

Constructor Summary

Constructors

Constructor and Description
Rate(java.lang.String name)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	apply(java.lang.Object[] args)

Methods inherited from class io.warp10.script.NamedWarpScriptFunction

getName, refSnapshot, setName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Rate

public Rate(java.lang.String name)

Method Detail

apply

public java.lang.Object apply(java.lang.Object[] args)
                       throws WarpScriptException

Specified by:

apply in interface WarpScriptAggregatorFunction

Throws:

WarpScriptException