com.yahoo.bard.webservice.data.filterbuilders

Class DefaultDruidFilterBuilder

java.lang.Object

com.yahoo.bard.webservice.data.filterbuilders.ConjunctionDruidFilterBuilder

com.yahoo.bard.webservice.data.filterbuilders.DefaultDruidFilterBuilder

All Implemented Interfaces:

DruidFilterBuilder

public class DefaultDruidFilterBuilder
extends ConjunctionDruidFilterBuilder

A DefaultDruidFilterBuilder builds a conjunction of disjunctions for each Dimension, where each disjunction corresponds to a filter term. So, the filter terms on dimension category:

category|id-in[finance,sports],category|desc-contains[baseball]

are translated into:

AndFilter(OrFilter(select(category, finance), select(category, sports)), OrFilter(select(category, sports)))

Each filter term is resolved independently of the other filter terms.

Constructor Summary

Constructors

Constructor and Description
DefaultDruidFilterBuilder()

Method Summary

Modifier and Type	Method and Description
protected Filter	buildDimensionFilter(Dimension dimension, Set<ApiFilter> filters) Take the conjunction of all the filters on a single dimension.

Methods inherited from class com.yahoo.bard.webservice.data.filterbuilders.ConjunctionDruidFilterBuilder

buildFilters, buildSelectorFilters, getFilteredDimensionRows

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultDruidFilterBuilder

public DefaultDruidFilterBuilder()

Method Detail

buildDimensionFilter

protected Filter buildDimensionFilter(Dimension dimension,
                                      Set<ApiFilter> filters)
                               throws DimensionRowNotFoundException

Description copied from class: ConjunctionDruidFilterBuilder

Take the conjunction of all the filters on a single dimension.

Specified by:

buildDimensionFilter in class ConjunctionDruidFilterBuilder

Parameters:

dimension - Dimension for the filters

filters - All filters belonging to that dimension

Returns:

A druid query filter object representing the filtering on a given dimension

Throws:

DimensionRowNotFoundException - if we attempt to filter a dimension without dimension rows