com.yahoo.bard.webservice.data.config.metric.makers

Class FilteredAggregationMaker

java.lang.Object

com.yahoo.bard.webservice.data.config.metric.makers.MetricMaker

com.yahoo.bard.webservice.data.config.metric.makers.FilteredAggregationMaker

public class FilteredAggregationMaker
extends MetricMaker

Build a Filtered Aggregation logical metric. This metric maker takes a metric whose field is an aggregator and builds a metric with the same dependencies except without the aggregation and with a filtered aggregation instead using a filter fixed at construction.

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	LOG

Fields inherited from class com.yahoo.bard.webservice.data.config.metric.makers.MetricMaker

metrics, NO_OP_MAP_PROVIDER, NO_OP_MAPPER

Constructor Summary

Constructors

Constructor and Description
FilteredAggregationMaker(MetricDictionary metricDictionary, Filter filter) Construct a metric maker for Filtered Aggregations.

Method Summary

Modifier and Type	Method and Description
protected int	getDependentMetricsRequired() Get the number of dependent metrics the maker requires for making the metric.
protected LogicalMetric	makeInner(LogicalMetricInfo logicalMetricInfo, List<String> dependentMetrics) Delegated to for actually making the metric.

Methods inherited from class com.yahoo.bard.webservice.data.config.metric.makers.MetricMaker

assertDependentMetricsExist, assertRequiredDependentMetricCount, getDependentQuery, getMergedQuery, getNumericField, getNumericField, getSketchField, getSketchField, make, make, make, makeInner

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.slf4j.Logger LOG

Constructor Detail

FilteredAggregationMaker

public FilteredAggregationMaker(MetricDictionary metricDictionary,
                                Filter filter)

Construct a metric maker for Filtered Aggregations.

Parameters:

metricDictionary - the metric dictionary

filter - the filter to filter the aggregation by

Method Detail

makeInner

protected LogicalMetric makeInner(LogicalMetricInfo logicalMetricInfo,
                                  List<String> dependentMetrics)

Description copied from class: MetricMaker

Delegated to for actually making the metric.

Overrides:

makeInner in class MetricMaker

Parameters:

logicalMetricInfo - Logical metric info provider

dependentMetrics - Metrics this metric depends on

Returns:

the new logicalMetric

getDependentMetricsRequired

protected int getDependentMetricsRequired()

Description copied from class: MetricMaker

Get the number of dependent metrics the maker requires for making the metric.

Specified by:

getDependentMetricsRequired in class MetricMaker

Returns:

the number of dependent metrics the maker requires for making the metric