io.warp10.script.aggregator

Class First

java.lang.Object

io.warp10.script.NamedWarpScriptFunction

io.warp10.script.aggregator.First

All Implemented Interfaces:

WarpScriptAggregatorFunction, WarpScriptBucketizerFunction, WarpScriptMapperFunction, WarpScriptReducerFunction

public class First
extends NamedWarpScriptFunction
implements WarpScriptMapperFunction, WarpScriptBucketizerFunction, WarpScriptReducerFunction

Retain the first measurement of the interval

Constructor Summary

Constructors

Constructor and Description
First(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

First

public First(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