public class RollupStream extends TupleStream implements Expressible
| Constructor and Description |
|---|
RollupStream(StreamExpression expression,
StreamFactory factory) |
RollupStream(TupleStream tupleStream,
Bucket[] buckets,
Metric[] metrics) |
| Modifier and Type | Method and Description |
|---|---|
List<TupleStream> |
children() |
void |
close() |
int |
getCost() |
StreamComparator |
getStreamSort() |
void |
open() |
Tuple |
read() |
void |
setStreamContext(StreamContext context) |
StreamExpressionParameter |
toExpression(StreamFactory factory) |
writeStreamClose, writeStreamOpenpublic RollupStream(TupleStream tupleStream, Bucket[] buckets, Metric[] metrics)
public RollupStream(StreamExpression expression, StreamFactory factory) throws IOException
IOExceptionpublic StreamExpressionParameter toExpression(StreamFactory factory) throws IOException
toExpression in interface ExpressibleIOExceptionpublic void setStreamContext(StreamContext context)
setStreamContext in class TupleStreampublic List<TupleStream> children()
children in class TupleStreampublic void open()
throws IOException
open in class TupleStreamIOExceptionpublic void close()
throws IOException
close in interface Closeableclose in interface AutoCloseableclose in class TupleStreamIOExceptionpublic Tuple read() throws IOException
read in class TupleStreamIOExceptionpublic int getCost()
getCost in class TupleStreampublic StreamComparator getStreamSort()
getStreamSort in class TupleStreamCopyright © 2000-2016 Apache Software Foundation. All Rights Reserved.