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

Class TopicStream

java.lang.Object

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

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

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

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable, Expressible, org.apache.solr.common.MapSerializable, org.apache.solr.common.MapWriter, org.apache.solr.common.NavigableObject, org.noggit.JSONWriter.Writable

public class TopicStream
extends CloudSolrStream
implements Expressible

Since:

6.0.0

See Also:

• Serialized Form

Nested Class Summary

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

CloudSolrStream.StreamOpener, CloudSolrStream.TupleWrapper

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

org.apache.solr.common.MapWriter.EntryWriter

Field Summary

Fields

Modifier and Type	Field	Description
protected long	checkpointEvery

Fields inherited from class org.apache.solr.client.solrj.io.stream.CloudSolrStream

collection, comp, eofTuples, fieldMappings, params, solrStreams, streamContext, tuples, zkHost

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

EMPTY

Constructor Summary

Constructors

Constructor	Description
TopicStream(String zkHost, String checkpointCollection, String collection, String id, long initialCheckpoint, long checkpointEvery, org.apache.solr.common.params.SolrParams params)
TopicStream(StreamExpression expression, StreamFactory factory)

Method Summary

Modifier and Type	Method	Description
List<TupleStream>	children()
void	close()	Closes the CloudSolrStream
protected void	constructStreams()
int	getCost()
void	open()	Opens the CloudSolrStream
Tuple	read()
void	setStreamContext(StreamContext context)
Explanation	toExplanation(StreamFactory factory)	Returns an explanation about the stream object
StreamExpression	toExpression(StreamFactory factory)

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

_read, adjustParams, getEofTuples, getSlices, getStreamSort, setFieldMappings, setTrace

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

getShards, 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, write

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

_forEachEntry, _forEachEntry, _forEachEntry, _get, _get, _getStr, _getStr, _size

Field Details

checkpointEvery

protected long checkpointEvery

Constructor Details

TopicStream

public TopicStream(String zkHost,
 String checkpointCollection,
 String collection,
 String id,
 long initialCheckpoint,
 long checkpointEvery,
 org.apache.solr.common.params.SolrParams params)

TopicStream

public TopicStream(StreamExpression expression,
 StreamFactory factory)
            throws IOException

Throws:

IOException

Method Details

toExpression

public StreamExpression toExpression(StreamFactory factory)
                              throws IOException

Specified by:

toExpression in interface Expressible

Overrides:

toExpression in class CloudSolrStream

Throws:

IOException

toExplanation

public Explanation toExplanation(StreamFactory factory)
                          throws IOException

Description copied from interface: Expressible

Returns an explanation about the stream object

Specified by:

toExplanation in interface Expressible

Overrides:

toExplanation in class CloudSolrStream

Parameters:

factory - Stream factory for this, contains information about the function name

Returns:

Explanation about this stream object containing explanations of any child stream objects

Throws:

IOException - throw on any error

children

public List<TupleStream> children()

Overrides:

children in class CloudSolrStream

open

public void open()
          throws IOException

Description copied from class: CloudSolrStream

Opens the CloudSolrStream

Overrides:

open in class CloudSolrStream

Throws:

IOException

close

public void close()
           throws IOException

Description copied from class: CloudSolrStream

Closes the CloudSolrStream

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class CloudSolrStream

Throws:

IOException

read

public Tuple read()
           throws IOException

Overrides:

read in class CloudSolrStream

Throws:

IOException

getCost

public int getCost()

Overrides:

getCost in class TupleStream

constructStreams

protected void constructStreams()
                         throws IOException

Overrides:

constructStreams in class CloudSolrStream

Throws:

IOException

setStreamContext

public void setStreamContext(StreamContext context)

Overrides:

setStreamContext in class CloudSolrStream