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

Class RawAggregationMetricMaker

java.lang.Object

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

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

Direct Known Subclasses:

DoubleMaxMaker, DoubleMinMaker, DoubleSumMaker, LongMaxMaker, LongMinMaker, LongSumMaker, MaxMaker, MinMaker, SketchCountMaker, ThetaSketchMaker

public abstract class RawAggregationMetricMaker
extends MetricMaker

Metric maker which only creates aggregations. They do not depend on other metrics and cannot be validated against the metric dictionary

Field Summary

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
RawAggregationMetricMaker(MetricDictionary metrics, BiFunction<String,String,Aggregation> aggregationFactory) Constructor.

Method Summary

Modifier and Type	Method and Description
protected void	assertDependentMetricsExist(List<String> dependentMetrics) Aggregation columns are not expected to be in the metric Dictionary.
protected int	getDependentMetricsRequired() Get the number of dependent metrics the maker requires for making the metric.
protected ResultSetMapper	getResultSetMapper(String metricName) The result set mapper associated with this 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

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

Constructor Detail

RawAggregationMetricMaker

public RawAggregationMetricMaker(MetricDictionary metrics,
                                 BiFunction<String,String,Aggregation> aggregationFactory)

Constructor.

Parameters:

metrics - A mapping of metric names to the corresponding LogicalMetrics. Used to resolve metric names when making the logical metric.

aggregationFactory - Produce an aggregation from a name and field name

Method Detail

assertDependentMetricsExist

protected void assertDependentMetricsExist(List<String> dependentMetrics)

Aggregation columns are not expected to be in the metric Dictionary.

Overrides:

assertDependentMetricsExist in class MetricMaker

Parameters:

dependentMetrics - List of dependent metrics needed to check

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

getResultSetMapper

protected ResultSetMapper getResultSetMapper(String metricName)

The result set mapper associated with this metric.

Parameters:

metricName - The metric name modified by this result set mapper (if any)

Returns:

The result set mapper bound to a metric being produced by this maker.