Package org.yamcs.yarch

Class TableReaderStream

java.lang.Object

org.yamcs.yarch.Stream

org.yamcs.yarch.TableReaderStream

All Implemented Interfaces:

Runnable, TableVisitor

public class TableReaderStream
extends Stream
implements Runnable, TableVisitor

Implements skeleton for table streamer that uses PartitionManager to handle partitioning.

Nested Class Summary

Nested classes/interfaces inherited from class org.yamcs.yarch.Stream

Stream.ExceptionHandler

Nested classes/interfaces inherited from interface org.yamcs.yarch.TableVisitor

TableVisitor.Action, TableVisitor.ActionType

Field Summary

Fields

Modifier and Type	Field	Description
protected TableDefinition	tableDefinition

Fields inherited from class org.yamcs.yarch.Stream

log, name, outputDefinition, QUITTING, RUNNING, SETUP, state, subscribers, ydb

Fields inherited from interface org.yamcs.yarch.TableVisitor

ACTION_CONTINUE, ACTION_DELETE, ACTION_DELETE_STOP, ACTION_STOP, ACTION_UPDATE, ACTION_UPDATE_STOP

Constructor Summary

Constructors

Constructor	Description
TableReaderStream(YarchDatabaseInstance ydb, TableDefinition tblDef, TableWalker iterator)

Method Summary

Modifier and Type	Method	Description
protected int	compare(byte[] a1, byte[] a2)
protected Tuple	dataToTuple(byte[] k, byte[] v)
void	doClose()
void	doStart()	Start emitting tuples.
TableDefinition	getTableDefinition()
void	run()
TableVisitor.Action	visit(byte[] key, byte[] value)

Methods inherited from class org.yamcs.yarch.Stream

addSubscriber, close, emitTuple, exceptionHandler, getColumnDefinition, getDataCount, getDefinition, getName, getState, getSubscriberCount, getSubscribers, isClosed, isRunning, quitting, removeSubscriber, setName, start, toString

Methods inherited from class java.lang.Object

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

Field Detail

tableDefinition

protected TableDefinition tableDefinition

Constructor Detail

TableReaderStream

public TableReaderStream(YarchDatabaseInstance ydb,
                         TableDefinition tblDef,
                         TableWalker iterator)

Method Detail

doStart

public void doStart()

Description copied from class: Stream

Start emitting tuples.

Specified by:

doStart in class Stream

run

public void run()

Specified by:

run in interface Runnable

visit

public TableVisitor.Action visit(byte[] key,
                                 byte[] value)

Specified by:

visit in interface TableVisitor

dataToTuple

protected Tuple dataToTuple(byte[] k,
                            byte[] v)

doClose

public void doClose()

Specified by:

doClose in class Stream

getTableDefinition

public TableDefinition getTableDefinition()

compare

protected int compare(byte[] a1,
                      byte[] a2)