com.yahoo.bard.webservice.data

Class DruidHavingBuilder

java.lang.Object

com.yahoo.bard.webservice.data.DruidHavingBuilder

public class DruidHavingBuilder
extends Object

Class to hold static methods to build druid query model objects from ApiHaving.

Constructor Summary

Constructors

Constructor and Description
DruidHavingBuilder()

Method Summary

Modifier and Type	Method and Description
static Having	buildHaving(LogicalMetric metric, ApiHaving having) Create a list of NumericHavings for the values specified and OR them together.
static Having	buildHavings(Map<LogicalMetric,Set<ApiHaving>> metricMap) Build a having model that ANDs together having queries for each of the metrics.
static Having	buildMetricHaving(LogicalMetric metric, Set<ApiHaving> havings) Build a Having for all the having queries for a single metric, ANDing them together.

Methods inherited from class java.lang.Object

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

Constructor Detail

DruidHavingBuilder

public DruidHavingBuilder()

Method Detail

buildHavings

public static Having buildHavings(Map<LogicalMetric,Set<ApiHaving>> metricMap)

Build a having model that ANDs together having queries for each of the metrics.

Parameters:

metricMap - A map of logical metric to the set of havings for that metric

Returns:

The having clause to appear in the Druid query. Returns null if the metricMap is empty or null.

buildMetricHaving

public static Having buildMetricHaving(LogicalMetric metric,
                                       Set<ApiHaving> havings)

Build a Having for all the having queries for a single metric, ANDing them together.

Parameters:

metric - Metric for the having query

havings - All having queries belonging to that metric

Returns:

A druid query having object representing the having clause on a given metric

buildHaving

public static Having buildHaving(LogicalMetric metric,
                                 ApiHaving having)

Create a list of NumericHavings for the values specified and OR them together.

Parameters:

metric - The metric that the operation applied to.

having - The ApiHaving object

Returns:

A single having representing the API Filter