com.caffinc.jaggr.core

Class AggregationBuilder

java.lang.Object

com.caffinc.jaggr.core.AggregationBuilder

public class AggregationBuilder
extends Object

Builder for Aggregations

Since:

11/26/2016

Author:

Sriram

Constructor Summary

Constructors

Constructor and Description
AggregationBuilder()

Method Summary

Methods

Modifier and Type	Method and Description
AggregationBuilder	addOperation(String field, Operation operation) Adds an aggregation operation to this builder
Aggregation	getAggregation() Gets the Aggregation object which can be used to aggregate streams of data
BatchAggregation	getBatchAggregation() Gets the BatchAggregation object which can be used to aggregate batches of data
AggregationBuilder	setGroupBy(String field) Sets the field to group the aggregation by.

Methods inherited from class java.lang.Object

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

Constructor Detail

AggregationBuilder

public AggregationBuilder()

Method Detail

setGroupBy

public AggregationBuilder setGroupBy(String field)

Sets the field to group the aggregation by. If field is not set, all documents are grouped together.

Parameters:

field - Grouping Field

Returns:

this

addOperation

public AggregationBuilder addOperation(String field,
                              Operation operation)

Adds an aggregation operation to this builder

Parameters:

field - Field to store the result of this aggregation in

operation - Operation to perform

Returns:

this

getBatchAggregation

public BatchAggregation getBatchAggregation()

Gets the BatchAggregation object which can be used to aggregate batches of data

Returns:

BatchAggregation which can perform the grouping and operations set previously on this AggregationBuilder

getAggregation

public Aggregation getAggregation()

Gets the Aggregation object which can be used to aggregate streams of data

Returns:

Aggregation which can perform the grouping and operations set previously on this AggregationBuilder