PamguardMVC
Class SingletonDataBlock<Tunit extends PamDataUnit>

java.lang.Object
  PamguardMVC.PamObservable
      PamguardMVC.PamDataBlock<Tunit>
          PamguardMVC.SingletonDataBlock<Tunit>

All Implemented Interfaces:

PanelOverlayDraw

Direct Known Subclasses:

ShoreStationDataBlock

public class SingletonDataBlock<Tunit extends PamDataUnit>
extends PamDataBlock<Tunit>

Version of pamdatablock that always keeps one and only one dataUnit.

Author:

Doug

Nested Class Summary

Nested classes/interfaces inherited from class PamguardMVC.PamDataBlock

PamDataBlock.OrderData

Field Summary

Fields inherited from class PamguardMVC.PamDataBlock

channelMap, dataName, ITERATOR_END, MATCH_AFTER, MATCH_BEFORE, MATCH_EXACT, MIX_DONOTHING, MIX_INTODATABASE, MIX_OUTOFDATABASE, naturalLifetime, NOTIFY_NEW_DATA, NOTIFY_UPDATE_DATA, OFFLINE_DATA_CANCEL, OFFLINE_DATA_INTERRUPT, OFFLINE_DATA_WAIT, orderLock, pamDataUnits, parentProcess, POSITION_AFTER, POSITION_BEFORE, REFERENCE_ABSOLUTE, REFERENCE_CURRENT, REQUEST_DATA_LOADED, REQUEST_DATA_PARTIAL_LOAD, REQUEST_EXCEPTION, REQUEST_INTERRUPTED, REQUEST_NO_DATA, REQUEST_SAME_REQUEST, t, unitsAdded, unitsRemoved, unitsUpdated

Fields inherited from class PamguardMVC.PamObservable

masterClockSample, objectChanged, overlayDraw, pamObservers, pamProfiler, totalCalls

Constructor Summary

SingletonDataBlock(java.lang.Class unitClass, java.lang.String dataName, PamProcess parentProcess, int channelMap)

Method Summary

void	addPamData(Tunit pamDataUnit) Adds a new PamDataUnit to the PamDataBlock.
protected int	removeOldUnitsT(long currentTimeMS) Removes olderPamDataUnits from memory, starting at the first unit and continuing until if finds one with data coming earlier than the given time in milliseconds.

Methods inherited from class PamguardMVC.PamDataBlock

addLocalisationContents, addObserver, addObserver, addOfflineDataMap, autoSetDataBlockMixMode, clearAll, clearDeletedList, createAnnotations, createAnnotations, dumpBlockContents, findAnnotation, findAnnotation, findByDatabaseIndex, findDataUnit, findDataUnit, getAbsoluteDataUnit, getAnnotations, getBinaryDataSource, getCanLog, getChannelMap, getClosestUnitMillis, getCurrentViewDataEnd, getCurrentViewDataStart, getDataGain, getDataName, getDataUnit, getFirstUnit, getFirstUnitAfter, getLastUnit, getListIterator, getListIterator, getListIteratorFromEnd, getListIteratorFromStart, getLocalisationContents, getLogging, getLoggingName, getLongDataName, getMixedDirection, getNaturalLifetime, getNaturalLifetimeMillis, getNextDataStart, getNumOfflineDataMaps, getOfflineData, getOfflineData, getOfflineDataMap, getOfflineDataMap, getOrderStatus, getParentProcess, getPreceedingUnit, getPreceedingUnit, getPreceedingUnit, getPreceedingUnit, getPrevDataEnd, getPrimaryDataMap, getRawSourceDataBlock, getRecycledUnit, getRecyclingStoreLength, getRemovedItems, getSampleRate, getSaveRequirements, getShouldLog, getSourceDataBlock, getSourceProcess, getUnitClass, getUnitIndex, getUnitsCount, getUnitsCountFromTime, isLinkGpsData, isRecycling, loadViewerData, masterClockUpdate, noteNewSettings, notifyModelChanged, orderOfflineData, orderOfflineData, remove, remove, removeOldUnitsS, saveViewerData, setBinaryDataSource, setChannelMap, setDataName, setLinkGpsData, setLocalisationContents, SetLogging, setMixedDirection, setNaturalLifetime, setNaturalLifetimeMillis, setRecycling, setRecyclingStoreLength, setSampleRate, setShouldLog, shouldNotify, toString, updatePamData

Methods inherited from class PamguardMVC.PamObservable

canDraw, clearchanged, countObservers, createKeyItem, deleteObserver, deleteObservers, drawDataUnit, findThreadedObserver, getCPUPercent, getCPUPercent, getHoverText, getLongestObserver, getPamObservers, getRequiredHistory, notifyObservers, notifyObservers, setChanged, setOverlayDraw, waitForThreadedObservers

Methods inherited from class java.lang.Object

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

Constructor Detail

SingletonDataBlock

public SingletonDataBlock(java.lang.Class unitClass,
                          java.lang.String dataName,
                          PamProcess parentProcess,
                          int channelMap)

Method Detail

addPamData

public void addPamData(Tunit pamDataUnit)

Description copied from class: PamDataBlock

Adds a new PamDataUnit to the PamDataBlock. When the data unit is added, PamObservers that have subscribed to the block will be notified.

Overrides:

addPamData in class PamDataBlock<Tunit extends PamDataUnit>

Parameters:

pamDataUnit - Reference to a PamDataUnit

removeOldUnitsT

protected int removeOldUnitsT(long currentTimeMS)

Description copied from class: PamDataBlock

Removes olderPamDataUnits from memory, starting at the first unit and continuing until if finds one with data coming earlier than the given time in milliseconds.

If the data are acoustic, it tries to find the data source and looks to see how much data has been placed in the source data unit and does the calculation in samples.

Overrides:

removeOldUnitsT in class PamDataBlock<Tunit extends PamDataUnit>

Parameters:

currentTimeMS - Time in milliseconds of the first data which must be kept

Returns:

the number of units removed