gr.uoa.di.madgik.searchlibrary.operatorlibrary.merge
Class MergeWorker

java.lang.Object
  java.lang.Thread
      gr.uoa.di.madgik.searchlibrary.operatorlibrary.merge.MergeWorker

All Implemented Interfaces:

Runnable

public class MergeWorker
extends Thread

This Thread class that populates the output RecordWriter in the background

Author:

UoA

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

MergeWorker(Vector<ReaderHolder> readers, StatsContainer stats, OperationMode operationMode, long timeout, TimeUnit timeUnit, String uid)
Creates a new MergeWorker

Method Summary

Object	getWriterInitSyncObject()
void	run()
void	setRecordDefinitionOffsets(int[] recordDefinitionOffsets)
void	setWriter(gr.uoa.di.madgik.grs.writer.RecordWriter<gr.uoa.di.madgik.grs.record.Record> writer)

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

MergeWorker

public MergeWorker(Vector<ReaderHolder> readers,
                   StatsContainer stats,
                   OperationMode operationMode,
                   long timeout,
                   TimeUnit timeUnit,
                   String uid)

Creates a new MergeWorker

Parameters:

readers - Vector holding info on the input ResultSet

stats - Statistics

operationMode - The operation mode. One of OperationMode.FIFO, OperationMode.FirstAvailable and OperationMode.Sort

timeout - The timeout that will be used by the RecordWriter and all ForwardReaders

timeUnit - The timeout unit that will be used by the RecordWriter and all ForwardReaders

uid - A unique identifier for this operation

Method Detail

setWriter

public void setWriter(gr.uoa.di.madgik.grs.writer.RecordWriter<gr.uoa.di.madgik.grs.record.Record> writer)

Parameters:

writer - The output RecordWriter to place the records to

setRecordDefinitionOffsets

public void setRecordDefinitionOffsets(int[] recordDefinitionOffsets)

getWriterInitSyncObject

public Object getWriterInitSyncObject()

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

See Also:

Runnable.run()