Facets
editFacets
editTerms Facet
editHere is how you can use Terms Facet with Java API.
Prepare facet request
editHere is an example on how to create the facet request:
FacetBuilders.termsFacet("f") .field("brand") .size(10);
Use facet response
editImport Facet definition classes:
import org.elasticsearch.search.facet.terms.*;
// sr is here your SearchResponse object TermsFacet f = (TermsFacet) sr.getFacets().facetsAsMap().get("f"); f.getTotalCount(); // Total terms doc count f.getOtherCount(); // Not shown terms doc count f.getMissingCount(); // Without term doc count // For each entry for (TermsFacet.Entry entry : f) { entry.getTerm(); // Term entry.getCount(); // Doc count }
Range Facet
editHere is how you can use Range Facet with Java API.
Prepare facet request
editHere is an example on how to create the facet request:
FacetBuilders.rangeFacet("f") .field("price") // Field to compute on .addUnboundedFrom(3) // from -infinity to 3 (excluded) .addRange(3, 6) // from 3 to 6 (excluded) .addUnboundedTo(6); // from 6 to +infinity
Use facet response
editImport Facet definition classes:
import org.elasticsearch.search.facet.range.*;
// sr is here your SearchResponse object RangeFacet f = (RangeFacet) sr.getFacets().facetsAsMap().get("f"); // For each entry for (RangeFacet.Entry entry : f) { entry.getFrom(); // Range from requested entry.getTo(); // Range to requested entry.getCount(); // Doc count entry.getMin(); // Min value entry.getMax(); // Max value entry.getMean(); // Mean entry.getTotal(); // Sum of values }
Histogram Facet
editHere is how you can use Histogram Facet with Java API.
Prepare facet request
editHere is an example on how to create the facet request:
HistogramFacetBuilder facet = FacetBuilders.histogramFacet("f") .field("price") .interval(1);
Use facet response
editImport Facet definition classes:
import org.elasticsearch.search.facet.histogram.*;
// sr is here your SearchResponse object HistogramFacet f = (HistogramFacet) sr.getFacets().facetsAsMap().get("f"); // For each entry for (HistogramFacet.Entry entry : f) { entry.getKey(); // Key (X-Axis) entry.getCount(); // Doc count (Y-Axis) }
Date Histogram Facet
editHere is how you can use Date Histogram Facet with Java API.
Prepare facet request
editHere is an example on how to create the facet request:
FacetBuilders.dateHistogramFacet("f") .field("date") // Your date field .interval("year"); // You can also use "quarter", "month", "week", "day", // "hour" and "minute" or notation like "1.5h" or "2w"
Use facet response
editImport Facet definition classes:
import org.elasticsearch.search.facet.datehistogram.*;
// sr is here your SearchResponse object DateHistogramFacet f = (DateHistogramFacet) sr.getFacets().facetsAsMap().get("f"); // For each entry for (DateHistogramFacet.Entry entry : f) { entry.getTime(); // Date in ms since epoch (X-Axis) entry.getCount(); // Doc count (Y-Axis) }
Filter Facet (not facet filter)
editHere is how you can use Filter Facet with Java API.
If you are looking on how to apply a filter to a facet, have a look at facet filter using Java API.
Prepare facet request
editHere is an example on how to create the facet request:
FacetBuilders.filterFacet("f", FilterBuilders.termFilter("brand", "heineken")); // Your Filter here
See Filters to learn how to build filters using Java.
Use facet response
editImport Facet definition classes:
import org.elasticsearch.search.facet.filter.*;
// sr is here your SearchResponse object FilterFacet f = (FilterFacet) sr.getFacets().facetsAsMap().get("f"); f.getCount(); // Number of docs that matched
Query Facet
editHere is how you can use Query Facet with Java API.
Prepare facet request
editHere is an example on how to create the facet request:
FacetBuilders.queryFacet("f", QueryBuilders.matchQuery("brand", "heineken"));
Use facet response
editImport Facet definition classes:
import org.elasticsearch.search.facet.query.*;
// sr is here your SearchResponse object QueryFacet f = (QueryFacet) sr.getFacets().facetsAsMap().get("f"); f.getCount(); // Number of docs that matched
See Queries to learn how to build queries using Java.
Statistical
editHere is how you can use Statistical Facet with Java API.
Prepare facet request
editHere is an example on how to create the facet request:
FacetBuilders.statisticalFacet("f") .field("price");
Use facet response
editImport Facet definition classes:
import org.elasticsearch.search.facet.statistical.*;
// sr is here your SearchResponse object StatisticalFacet f = (StatisticalFacet) sr.getFacets().facetsAsMap().get("f"); f.getCount(); // Doc count f.getMin(); // Min value f.getMax(); // Max value f.getMean(); // Mean f.getTotal(); // Sum of values f.getStdDeviation(); // Standard Deviation f.getSumOfSquares(); // Sum of Squares f.getVariance(); // Variance
Terms Stats Facet
editHere is how you can use Terms Stats Facet with Java API.
Prepare facet request
editHere is an example on how to create the facet request:
FacetBuilders.termsStatsFacet("f") .keyField("brand") .valueField("price");
Use facet response
editImport Facet definition classes:
import org.elasticsearch.search.facet.termsstats.*;
// sr is here your SearchResponse object TermsStatsFacet f = (TermsStatsFacet) sr.getFacets().facetsAsMap().get("f"); f.getTotalCount(); // Total terms doc count f.getOtherCount(); // Not shown terms doc count f.getMissingCount(); // Without term doc count // For each entry for (TermsStatsFacet.Entry entry : f) { entry.getTerm(); // Term entry.getCount(); // Doc count entry.getMin(); // Min value entry.getMax(); // Max value entry.getMean(); // Mean entry.getTotal(); // Sum of values }
Geo Distance Facet
editHere is how you can use Geo Distance Facet with Java API.
Prepare facet request
editHere is an example on how to create the facet request:
FacetBuilders.geoDistanceFacet("f") .field("pin.location") // Field containing coordinates we want to compare with .point(40, -70) // Point from where we start (0) .addUnboundedFrom(10) // 0 to 10 km (excluded) .addRange(10, 20) // 10 to 20 km (excluded) .addRange(20, 100) // 20 to 100 km (excluded) .addUnboundedTo(100) // from 100 km to infinity (and beyond ;-) ) .unit(DistanceUnit.KILOMETERS); // All distances are in kilometers. Can be MILES
Use facet response
editImport Facet definition classes:
import org.elasticsearch.search.facet.geodistance.*;
// sr is here your SearchResponse object GeoDistanceFacet f = (GeoDistanceFacet) sr.getFacets().facetsAsMap().get("f"); // For each entry for (GeoDistanceFacet.Entry entry : f) { entry.getFrom(); // Distance from requested entry.getTo(); // Distance to requested entry.getCount(); // Doc count entry.getMin(); // Min value entry.getMax(); // Max value entry.getTotal(); // Sum of values entry.getMean(); // Mean }