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

类 UniqueStream

java.lang.Object

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

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

所有已实现的接口:

Closeable, Serializable, AutoCloseable, Expressible, MapSerializable, MapWriter, NavigableObject

public class UniqueStream
extends TupleStream
implements Expressible

The UniqueStream emits a unique stream of Tuples based on a Comparator. Note: The sort order of the underlying stream must match the Comparator.

从以下版本开始:

5.1.0

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 org.apache.solr.client.solrj.io.stream.TupleStream

TupleStream.IgnoreException

从接口继承的嵌套类/接口 org.apache.solr.common.MapWriter

MapWriter.EntryWriter

构造器概要

构造器

构造器和说明
UniqueStream(StreamExpression expression, StreamFactory factory)
UniqueStream(TupleStream stream, StreamEqualitor eq)

方法概要

限定符和类型	方法和说明
List<TupleStream>	children()
void	close()
int	getCost()
StreamComparator	getStreamSort() Return the stream sort - ie, the order in which records are returned
void	open()
Tuple	read()
void	setStreamContext(StreamContext context)
Explanation	toExplanation(StreamFactory factory) Returns an explanation about the stream object
StreamExpression	toExpression(StreamFactory factory)

从类继承的方法 org.apache.solr.client.solrj.io.stream.TupleStream

getShards, getShards, getStreamNodeId, writeMap

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.solr.common.MapWriter

jsonStr, toMap

从接口继承的方法 org.apache.solr.common.NavigableObject

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

构造器详细资料

UniqueStream

public UniqueStream(TupleStream stream,
                    StreamEqualitor eq)
             throws IOException

抛出:

IOException

UniqueStream

public UniqueStream(StreamExpression expression,
                    StreamFactory factory)
             throws IOException

抛出:

IOException

方法详细资料

toExpression

public StreamExpression toExpression(StreamFactory factory)
                              throws IOException

指定者:

toExpression 在接口中 Expressible

抛出:

IOException

toExplanation

public Explanation toExplanation(StreamFactory factory)
                          throws IOException

从接口复制的说明: Expressible

Returns an explanation about the stream object

指定者:

toExplanation 在接口中 Expressible

指定者:

toExplanation 在类中 TupleStream

参数:

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

返回:

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

抛出:

IOException - throw on any error

setStreamContext

public void setStreamContext(StreamContext context)

指定者:

setStreamContext 在类中 TupleStream

children

public List<TupleStream> children()

指定者:

children 在类中 TupleStream

open

public void open()
          throws IOException

指定者:

open 在类中 TupleStream

抛出:

IOException

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

指定者:

close 在类中 TupleStream

抛出:

IOException

read

public Tuple read()
           throws IOException

指定者:

read 在类中 TupleStream

抛出:

IOException

getStreamSort

public StreamComparator getStreamSort()

Return the stream sort - ie, the order in which records are returned

指定者:

getStreamSort 在类中 TupleStream

getCost

public int getCost()

覆盖:

getCost 在类中 TupleStream