# Package org.apache.solr.client.solrj.io.stream

Stream implementations for the Streaming Aggregation API

See: Description

Class Summary
BiJoinStream: Joins leftStream with rightStream based on a Equalitor.
CloudSolrStream: Connects to Zookeeper to pick replicas from a specific collection to send the query to.
ComplementStream: Emits tuples from streamA which do not exist in streamB.
DaemonStream
ExceptionStream
FacetStream: The FacetStream abstracts the output from the JSON facet API as a Stream of Tuples.
HashJoinStream: Takes two streams (fullStream and hashStream) and joins them similar to an InnerJoinStream.
InnerJoinStream: Joins leftStream with rightStream based on a Equalitor.
IntersectStream: Emits tuples from streamA which also exist in streamB.
JDBCStream: Connects to a datasource using a registered JDBC driver and execute a query.
JoinStream: Defines a JoinStream which can hold N streams, all joined with the same equalitor
JSONTupleStream
LeftOuterJoinStream: Joins leftStream with rightStream based on a Equalitor.
MergeStream: Merges two or more streams together ordering the Tuples based on a Comparator.
OuterHashJoinStream: Takes two streams (fullStream and hashStream) and joins them similar to an LeftOuterJoinStream.
ParallelStream: The ParallelStream decorates a TupleStream implementation and pushes it to N workers for parallel execution.
PushBackStream: A TupleStream that allows a single Tuple to be pushed back onto the stream after it's been read.
RandomStream: The RandomStream emits a stream of psuedo random Tuples that match the query parameters.
RankStream: Iterates over a TupleStream and Ranks the topN tuples based on a Comparator.
ReducerStream: Iterates over a TupleStream and buffers Tuples that are equal based on a comparator.
RollupStream
SelectStream: Selects fields from the incoming stream and applies optional field renaming.
SolrStream: Queries a single Solr instance and maps SolrDocs to a Stream of Tuples.
SortStream: The SortStream emits a stream of Tuples sorted by a Comparator.
StatsStream
StreamContext: The StreamContext is passed to TupleStreams using the TupleStream.setStreamContext() method.
TopicStream
TupleStream
UniqueStream: The UniqueStream emits a unique stream of Tuples based on a Comparator.
UpdateStream: Sends tuples emitted by a wrapped `TupleStream` as updates to a SolrCloud collection.

Exception Summary
SolrStream.HandledException

## Package org.apache.solr.client.solrj.io.stream Description

Stream implementations for the Streaming Aggregation API