com.yahoo.bullet.query.aggregations

Class Distribution

java.lang.Object

com.yahoo.bullet.query.aggregations.Aggregation

com.yahoo.bullet.query.aggregations.Distribution

All Implemented Interfaces:

Configurable, Serializable

Direct Known Subclasses:

LinearDistribution, ManualDistribution, RegionDistribution

public abstract class Distribution
extends Aggregation

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected DistributionType	distributionType
protected String	field

Fields inherited from class com.yahoo.bullet.query.aggregations.Aggregation

size, type

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Distribution(String field, DistributionType type, Integer size) Constructor that creates a DISTRIBUTION aggregation with a specified max size.

Method Summary

Modifier and Type	Method and Description
List<String>	getFields() Gets the aggregation fields.
Strategy	getStrategy(BulletConfig config) Returns a new Strategy instance that handles this aggregation.

Methods inherited from class com.yahoo.bullet.query.aggregations.Aggregation

configure, toString

Methods inherited from class java.lang.Object

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

Field Detail

field

protected final String field

distributionType

protected final DistributionType distributionType

Constructor Detail

Distribution

protected Distribution(String field,
                       DistributionType type,
                       Integer size)

Constructor that creates a DISTRIBUTION aggregation with a specified max size.

Parameters:

field - The non-null field

type - The non-null distribution type

size - The max size of the DISTRIBUTION aggregation. Can be null.

Method Detail

getStrategy

public Strategy getStrategy(BulletConfig config)

Description copied from class: Aggregation

Returns a new Strategy instance that handles this aggregation.

Specified by:

getStrategy in class Aggregation

Parameters:

config - The BulletConfig containing configuration for the strategy.

Returns:

The created instance of a strategy that can implement this aggregation.

getFields

public List<String> getFields()

Description copied from class: Aggregation

Gets the aggregation fields.

Overrides:

getFields in class Aggregation

Returns:

The aggregation fields.