public final class Aggregates extends Object
| Modifier and Type | Method and Description | 
|---|---|
| static Bson | addFields(Field<?>... fields)Creates an $addFields pipeline stage | 
| static Bson | addFields(List<Field<?>> fields)Creates an $addFields pipeline stage | 
| static <TExpression,Boundary> | bucket(TExpression groupBy,
      List<Boundary> boundaries)Creates a $bucket pipeline stage | 
| static <TExpression,TBoundary> | bucket(TExpression groupBy,
      List<TBoundary> boundaries,
      BucketOptions options)Creates a $bucket pipeline stage | 
| static <TExpression> | bucketAuto(TExpression groupBy,
          int buckets)Creates a $bucketAuto pipeline stage | 
| static <TExpression> | bucketAuto(TExpression groupBy,
          int buckets,
          BucketAutoOptions options)Creates a $bucketAuto pipeline stage | 
| static Bson | count()Creates a $count pipeline stage using the field name "count" to store the result | 
| static Bson | count(String field)Creates a $count pipeline stage using the named field to store the result | 
| static Bson | facet(Facet... facets)Creates a facet pipeline stage | 
| static Bson | facet(List<Facet> facets)Creates a facet pipeline stage | 
| static <TExpression> | graphLookup(String from,
           TExpression startWith,
           String connectFromField,
           String connectToField,
           String as)Creates a graphLookup pipeline stage for the specified filter | 
| static <TExpression> | graphLookup(String from,
           TExpression startWith,
           String connectFromField,
           String connectToField,
           String as,
           GraphLookupOptions options)Creates a graphLookup pipeline stage for the specified filter | 
| static <TExpression> | group(TExpression id,
     BsonField... fieldAccumulators)Creates a $group pipeline stage for the specified filter | 
| static <TExpression> | group(TExpression id,
     List<BsonField> fieldAccumulators)Creates a $group pipeline stage for the specified filter | 
| static Bson | limit(int limit)Creates a $limit pipeline stage for the specified filter | 
| static Bson | lookup(String from,
      String localField,
      String foreignField,
      String as)Creates a $lookup pipeline stage for the specified filter | 
| static Bson | match(Bson filter)Creates a $match pipeline stage for the specified filter | 
| static Bson | out(String collectionName)Creates a $out pipeline stage for the specified filter | 
| static Bson | project(Bson projection)Creates a $project pipeline stage for the specified projection | 
| static <TExpression> | replaceRoot(TExpression value)Creates a $replaceRoot pipeline stage | 
| static Bson | sample(int size)Creates a $sample pipeline stage with the specified sample size | 
| static Bson | skip(int skip)Creates a $skip pipeline stage | 
| static Bson | sort(Bson sort)Creates a $sort pipeline stage for the specified sort specification | 
| static <TExpression> | sortByCount(TExpression filter)Creates a $sortByCount pipeline stage for the specified filter | 
| static Bson | unwind(String fieldName)Creates a $unwind pipeline stage for the specified field name, which must be prefixed by a  '$'sign. | 
| static Bson | unwind(String fieldName,
      UnwindOptions unwindOptions)Creates a $unwind pipeline stage for the specified field name, which must be prefixed by a  '$'sign. | 
public static Bson addFields(Field<?>... fields)
fields - the fields to addpublic static Bson addFields(List<Field<?>> fields)
fields - the fields to addpublic static <TExpression,Boundary> Bson bucket(TExpression groupBy, List<Boundary> boundaries)
public static <TExpression,TBoundary> Bson bucket(TExpression groupBy, List<TBoundary> boundaries, BucketOptions options)
TExpression - the groupBy expression typeTBoundary - the boundary typegroupBy - the criteria to group Byboundaries - the boundaries of the bucketsoptions - the optional values for the $bucket stagepublic static <TExpression> Bson bucketAuto(TExpression groupBy, int buckets)
TExpression - the groupBy expression typegroupBy - the criteria to group Bybuckets - the number of the bucketspublic static <TExpression> Bson bucketAuto(TExpression groupBy, int buckets, BucketAutoOptions options)
TExpression - the groupBy expression typegroupBy - the criteria to group Bybuckets - the number of the bucketsoptions - the optional values for the $bucketAuto stagepublic static Bson count()
public static Bson count(String field)
public static Bson match(Bson filter)
public static Bson project(Bson projection)
projection - the projectionProjectionspublic static Bson sort(Bson sort)
public static <TExpression> Bson sortByCount(TExpression filter)
TExpression - the expression typefilter - the filter specificationpublic static Bson skip(int skip)
skip - the number of documents to skippublic static Bson limit(int limit)
limit - the limitpublic static Bson lookup(String from, String localField, String foreignField, String as)
from - the name of the collection in the same database to perform the join with.localField - specifies the field from the local collection to match values against.foreignField - specifies the field in the from collection to match values against.as - the name of the new array field to add to the input documents.public static <TExpression> Bson graphLookup(String from, TExpression startWith, String connectFromField, String connectToField, String as)
TExpression - the expression typefrom - the collection to querystartWith - the expression to start the graph lookup withconnectFromField - the from fieldconnectToField - the to fieldas - name of field in output documentpublic static <TExpression> Bson graphLookup(String from, TExpression startWith, String connectFromField, String connectToField, String as, GraphLookupOptions options)
TExpression - the expression typefrom - the collection to querystartWith - the expression to start the graph lookup withconnectFromField - the from fieldconnectToField - the to fieldas - name of field in output documentoptions - optional values for the graphLookuppublic static <TExpression> Bson group(TExpression id, BsonField... fieldAccumulators)
TExpression - the expression typeid - the id expression for the groupfieldAccumulators - zero or more field accumulator pairspublic static <TExpression> Bson group(TExpression id, List<BsonField> fieldAccumulators)
TExpression - the expression typeid - the id expression for the groupfieldAccumulators - zero or more field accumulator pairspublic static Bson unwind(String fieldName)
'$' sign.fieldName - the field name, prefixed by a '$' signpublic static Bson unwind(String fieldName, UnwindOptions unwindOptions)
'$' sign.public static Bson out(String collectionName)
public static <TExpression> Bson replaceRoot(TExpression value)
TExpression - the new root typevalue - the new root value