org.apache.solr.handler

Class ClassifyStream

java.lang.Object

org.apache.solr.client.solrj.io.stream.TupleStream

org.apache.solr.handler.ClassifyStream

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable, Expressible, MapSerializable, MapWriter

public class ClassifyStream
extends TupleStream
implements Expressible

The classify expression retrieves a model trained by the train expression and uses it to classify documents from a stream Syntax: classif(model(...), anyStream(...), field="body")

Since:

6.3.0

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.solr.client.solrj.io.stream.TupleStream

TupleStream.IgnoreException

Nested classes/interfaces inherited from interface org.apache.solr.common.MapWriter

MapWriter.EntryWriter

Constructor Summary

Constructors

Constructor and Description
ClassifyStream(StreamExpression expression, StreamFactory factory)

Method Summary

Modifier and Type	Method and Description
List<TupleStream>	children()
void	close()
StreamComparator	getStreamSort()
void	open()
Tuple	read()
void	setStreamContext(StreamContext context)
Explanation	toExplanation(StreamFactory factory)
StreamExpressionParameter	toExpression(StreamFactory factory)

Methods inherited from class org.apache.solr.client.solrj.io.stream.TupleStream

getCost, getShards, getStreamNodeId, writeMap

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.common.MapWriter

jsonStr, toMap

Constructor Detail

ClassifyStream

public ClassifyStream(StreamExpression expression,
                      StreamFactory factory)
               throws IOException

Throws:

IOException

Method Detail

setStreamContext

public void setStreamContext(StreamContext context)

Specified by:

setStreamContext in class TupleStream

children

public List<TupleStream> children()

Specified by:

children in class TupleStream

open

public void open()
          throws IOException

Specified by:

open in class TupleStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in class TupleStream

Throws:

IOException

read

public Tuple read()
           throws IOException

Specified by:

read in class TupleStream

Throws:

IOException

getStreamSort

public StreamComparator getStreamSort()

Specified by:

getStreamSort in class TupleStream

toExpression

public StreamExpressionParameter toExpression(StreamFactory factory)
                                       throws IOException

Specified by:

toExpression in interface Expressible

Throws:

IOException

toExplanation

public Explanation toExplanation(StreamFactory factory)
                          throws IOException

Specified by:

toExplanation in interface Expressible

Specified by:

toExplanation in class TupleStream

Throws:

IOException