Package de.bwaldvogel.mongo.backend.aggregation.accumulator

Class Accumulator

java.lang.Object

de.bwaldvogel.mongo.backend.aggregation.accumulator.Accumulator

Direct Known Subclasses:

AddToSetAccumulator, AvgAccumulator, FirstAccumulator, LastAccumulator, MaxAccumulator, MinAccumulator, PushAccumulator, SumAccumulator

public abstract class Accumulator
extends Object

Method Summary

Modifier and Type	Method	Description
abstract void	aggregate(Object value)
Object	getExpression()
String	getField()
abstract Object	getResult()
static Map<String,Supplier<Accumulator>>	parse(Document configuration)

Methods inherited from class java.lang.Object

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

Method Details

parse

public static Map<String,Supplier<Accumulator>> parse(Document configuration)

getField

public String getField()

getExpression

public Object getExpression()

aggregate

public abstract void aggregate(Object value)

getResult

public abstract Object getResult()