org.mongodb.morphia.aggregation

Class Accumulator

java.lang.Object

org.mongodb.morphia.aggregation.Accumulator

public class Accumulator
extends Object

Defines an accumulator for use in an aggregation pipeline.

Constructor Summary

Constructors

Constructor and Description
Accumulator(String operation, Object field) Defines an accumulator for use in an aggregation pipeline.
Accumulator(String operation, String field) Defines an accumulator for use in an aggregation pipeline.

Method Summary

Modifier and Type	Method and Description
Object	getField()
String	getOperation()

Methods inherited from class java.lang.Object

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

Constructor Detail

Accumulator

public Accumulator(String operation,
                   String field)

Defines an accumulator for use in an aggregation pipeline.

Parameters:

operation - the accumulator operation

field - the field to use

Accumulator

public Accumulator(String operation,
                   Object field)

Defines an accumulator for use in an aggregation pipeline.

Parameters:

operation - the accumulator operation

field - the field to use

Method Detail

getField

public Object getField()

Returns:

the field for this accumulator

getOperation

public String getOperation()

Returns:

the operation for this accumulator