Class DataGrid
- java.lang.Object
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- org.pentaho.di.trans.step.BaseStep
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- org.pentaho.di.trans.steps.datagrid.DataGrid
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- All Implemented Interfaces:
org.pentaho.di.core.ExtensionDataInterface
,HasLogChannelInterface
,org.pentaho.di.core.logging.LoggingObjectInterface
,org.pentaho.di.core.logging.LoggingObjectLifecycleInterface
,org.pentaho.di.core.variables.VariableSpace
,StepInterface
public class DataGrid extends BaseStep implements StepInterface
Generates a number of (empty or the same) rows- Since:
- 4-apr-2003
- Author:
- Matt
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Field Summary
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Fields inherited from class org.pentaho.di.trans.step.BaseStep
deadLockCounter, extensionDataMap, first, linesInput, linesOutput, linesRead, linesRejected, linesSkipped, linesUpdated, linesWritten, log, loggingObjectInUse, metaStore, repository, rowListeners, safeStopped, terminator, terminator_rows, variables
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Constructor Summary
Constructors Constructor Description DataGrid(StepMeta stepMeta, StepDataInterface stepDataInterface, int copyNr, TransMeta transMeta, Trans trans)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
isWaitingForData()
boolean
processRow(StepMetaInterface smi, StepDataInterface sdi)
Perform the equivalent of processing one row.-
Methods inherited from class org.pentaho.di.trans.step.BaseStep
addResultFile, addRowListener, addRowSetToInputRowSets, addRowSetToOutputRowSets, addStepListener, batchComplete, beforeStartProcessing, buildLog, canProcessOneRow, checkFeedback, cleanup, clearInputRowSets, clearOutputRowSets, closeQuietly, copyVariablesFrom, decrementLinesRead, decrementLinesWritten, dispatch, dispose, environmentSubstitute, environmentSubstitute, environmentSubstitute, fieldSubstitute, findInputRowSet, findInputRowSet, findOutputRowSet, findOutputRowSet, getBooleanValueOfVariable, getClusterSize, getContainerObjectId, getCopy, getCurrentInputRowSetNr, getCurrentOutputRowSetNr, getDispatcher, getErrorRowMeta, getErrors, getExtensionDataMap, getFilename, getFirstInputRowSet, getInputRowMeta, getInputRowSets, getLinesInput, getLinesOutput, getLinesRead, getLinesRejected, getLinesSkipped, getLinesUpdated, getLinesWritten, getLogChannel, getLogChannelId, getLogFields, getLogLevel, getMetaStore, getNextClassNr, getObjectCopy, getObjectId, getObjectName, getObjectRevision, getObjectType, getOutputRowSets, getParent, getParentVariableSpace, getPartitionID, getPartitionTargets, getPreviewRowMeta, getProcessed, getRegistrationDate, getRemoteInputSteps, getRemoteOutputSteps, getRepartitioning, getRepository, getRepositoryDirectory, getResultFiles, getRow, getRowFrom, getRowHandler, getRowListeners, getRuntime, getServerSockets, getSlaveNr, getSocketRepository, getStatus, getStatusDescription, getStepDataInterface, getStepID, getStepListeners, getStepMeta, getStepMetaInterface, getStepname, getTrans, getTransMeta, getTypeId, getUniqueStepCountAcrossSlaves, getUniqueStepNrAcrossSlaves, getVariable, getVariable, handleGetRowFrom, handlePutRowTo, identifyErrorOutput, incrementLinesInput, incrementLinesOutput, incrementLinesRead, incrementLinesRejected, incrementLinesSkipped, incrementLinesUpdated, incrementLinesWritten, init, initBeforeStart, initializeVariablesFrom, injectVariables, isBasic, isDebug, isDetailed, isDistributed, isForcingSeparateLogging, isGatheringMetrics, isInitialising, isLoggingObjectInUse, isMapping, isPartitioned, isPaused, isRowLevel, isRunning, isSafeStopped, isStopped, isUsingThreadPriorityManagment, listVariables, logBasic, logBasic, logDebug, logDebug, logDetailed, logDetailed, logError, logError, logError, logMinimal, logMinimal, logRowlevel, logRowlevel, logSummary, markStart, markStop, openRemoteInputStepSocketsOnce, openRemoteOutputStepSocketsOnce, outputIsDone, pauseRunning, putError, putRow, putRowTo, removeRowListener, resumeRunning, rowsetInputSize, rowsetOutputSize, safeModeChecking, safeModeChecking, setCarteObjectId, setCopy, setCurrentInputRowSetNr, setCurrentOutputRowSetNr, setDistributed, setErrorRowMeta, setErrors, setForcingSeparateLogging, setGatheringMetrics, setInputRowMeta, setInputRowSets, setInternalVariables, setLinesInput, setLinesOutput, setLinesRead, setLinesRejected, setLinesSkipped, setLinesUpdated, setLinesWritten, setLoggingObjectInUse, setLogLevel, setMetaStore, setOutputDone, setOutputRowSets, setParentVariableSpace, setPartitioned, setPartitionID, setPartitionTargets, setPaused, setPaused, setPreviewRowMeta, setRepartitioning, setRepository, setRowHandler, setRunning, setSafeStopped, setServerSockets, setSocketRepository, setStepDataInterface, setStepListeners, setStepMeta, setStepMetaInterface, setStepname, setStopped, setTransMeta, setUsingThreadPriorityManagment, setVariable, shareVariablesWith, stopAll, stopRunning, stopRunning, swapFirstInputRowSetIfExists, toString, verifyInputDeadLock, waitUntilTransformationIsStarted
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.pentaho.di.core.logging.LoggingObjectLifecycleInterface
callAfterLog, callBeforeLog
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Methods inherited from interface org.pentaho.di.trans.step.StepInterface
addRowListener, addRowSetToInputRowSets, addRowSetToOutputRowSets, addStepListener, afterFinishProcessing, batchComplete, beforeStartProcessing, canProcessOneRow, cleanup, dispose, getCopy, getCurrentInputRowSetNr, getCurrentOutputRowSetNr, getErrors, getInputRowSets, getLinesInput, getLinesOutput, getLinesRead, getLinesRejected, getLinesUpdated, getLinesWritten, getLogChannel, getMetaStore, getOutputRowSets, getPartitionID, getProcessed, getRepository, getResultFiles, getRow, getRowListeners, getRuntime, getStatus, getStepID, getStepMeta, getStepname, getTrans, identifyErrorOutput, init, initBeforeStart, isMapping, isPartitioned, isPaused, isRunning, isSafeStopped, isStopped, isUsingThreadPriorityManagment, markStart, markStop, pauseRunning, putRow, removeRowListener, resumeRunning, rowsetInputSize, rowsetOutputSize, setCurrentInputRowSetNr, setCurrentOutputRowSetNr, setErrors, setLinesRejected, setMetaStore, setOutputDone, setPartitioned, setPartitionID, setRepartitioning, setRepository, setRunning, setSafeStopped, setStopped, setUsingThreadPriorityManagment, stopAll, stopRunning, subStatuses
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Methods inherited from interface org.pentaho.di.core.variables.VariableSpace
copyVariablesFrom, environmentSubstitute, environmentSubstitute, environmentSubstitute, fieldSubstitute, getBooleanValueOfVariable, getParentVariableSpace, getVariable, getVariable, initializeVariablesFrom, injectVariables, listVariables, setParentVariableSpace, setVariable, shareVariablesWith
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Constructor Detail
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DataGrid
public DataGrid(StepMeta stepMeta, StepDataInterface stepDataInterface, int copyNr, TransMeta transMeta, Trans trans)
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Method Detail
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processRow
public boolean processRow(StepMetaInterface smi, StepDataInterface sdi) throws org.pentaho.di.core.exception.KettleException
Description copied from interface:StepInterface
Perform the equivalent of processing one row. Typically this means reading a row from input (getRow()) and passing a row to output (putRow)).- Specified by:
processRow
in interfaceStepInterface
- Overrides:
processRow
in classBaseStep
- Parameters:
smi
- The steps metadata to work withsdi
- The steps temporary working data to work with (database connections, result sets, caches, temporary variables, etc.)- Returns:
- false if no more rows can be processed or an error occurred.
- Throws:
org.pentaho.di.core.exception.KettleException
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isWaitingForData
public boolean isWaitingForData()
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