public abstract class TupleStream extends Object implements Serializable
Constructor and Description |
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TupleStream() |
Modifier and Type | Method and Description |
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abstract List<TupleStream> |
children() |
abstract void |
close() |
int |
getCost() |
abstract void |
open() |
abstract Tuple |
read() |
abstract void |
setStreamContext(StreamContext context) |
public abstract void setStreamContext(StreamContext context)
public abstract List<TupleStream> children()
public abstract void open() throws IOException
IOException
public abstract void close() throws IOException
IOException
public abstract Tuple read() throws IOException
IOException
public int getCost()
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