public class HashRollupStream extends TupleStream implements Expressible
TupleStream.IgnoreExceptionMapWriter.EntryWriter| 构造器和说明 |
|---|
HashRollupStream(StreamExpression expression,
StreamFactory factory) |
HashRollupStream(TupleStream tupleStream,
Bucket[] buckets,
Metric[] metrics) |
| 限定符和类型 | 方法和说明 |
|---|---|
List<TupleStream> |
children() |
void |
close() |
int |
getCost() |
StreamComparator |
getStreamSort() |
void |
open() |
Tuple |
read() |
void |
setStreamContext(StreamContext context) |
Explanation |
toExplanation(StreamFactory factory)
Returns an explanation about the stream object
|
StreamExpression |
toExpression(StreamFactory factory) |
getShards, getShards, getStreamNodeId, writeMapclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait_forEachEntry, _forEachEntry, _forEachEntry, _get, _get, _getStr, _getStr, _sizepublic HashRollupStream(TupleStream tupleStream, Bucket[] buckets, Metric[] metrics)
public HashRollupStream(StreamExpression expression, StreamFactory factory) throws IOException
IOExceptionpublic StreamExpression toExpression(StreamFactory factory) throws IOException
toExpression 在接口中 ExpressibleIOExceptionpublic Explanation toExplanation(StreamFactory factory) throws IOException
ExpressibletoExplanation 在接口中 ExpressibletoExplanation 在类中 TupleStreamfactory - Stream factory for this, contains information about the function nameIOException - throw on any errorpublic void setStreamContext(StreamContext context)
setStreamContext 在类中 TupleStreampublic List<TupleStream> children()
children 在类中 TupleStreampublic void open()
throws IOException
open 在类中 TupleStreamIOExceptionpublic void close()
throws IOException
close 在接口中 Closeableclose 在接口中 AutoCloseableclose 在类中 TupleStreamIOExceptionpublic Tuple read() throws IOException
read 在类中 TupleStreamIOExceptionpublic int getCost()
getCost 在类中 TupleStreampublic StreamComparator getStreamSort()
getStreamSort 在类中 TupleStreamCopyright © 2006–2022 The Apache Software Foundation. All rights reserved.