org.pentaho.di.trans.steps.univariatestats

类 UnivariateStats

java.lang.Object

org.pentaho.di.trans.step.BaseStep

org.pentaho.di.trans.steps.univariatestats.UnivariateStats

所有已实现的接口:

org.pentaho.di.core.ExtensionDataInterface, HasLogChannelInterface, org.pentaho.di.core.logging.LoggingObjectInterface, org.pentaho.di.core.variables.VariableSpace, StepInterface

public class UnivariateStats
extends BaseStep
implements StepInterface

Calculate univariate statistics based on one column of the input data.

Calculates N, mean, standard deviation, minimum, maximum, median and arbitrary percentiles. Percentiles can be calculated using interpolation or a simple method. See The Engineering Statistics Handbook for details.

版本:

1.0

作者:

Mark Hall (mhall{[at]}pentaho.org)

字段概要

从类继承的字段 org.pentaho.di.trans.step.BaseStep

deadLockCounter, extensionDataMap, first, linesInput, linesOutput, linesRead, linesRejected, linesSkipped, linesUpdated, linesWritten, log, metaStore, repository, rowListeners, safeStopped, terminator, terminator_rows, variables

构造器概要

构造器

构造器和说明
UnivariateStats(StepMeta stepMeta, StepDataInterface stepDataInterface, int copyNr, TransMeta transMeta, Trans trans) Creates a new UnivariateStats instance.

方法概要

限定符和类型	方法和说明
boolean	init(StepMetaInterface smi, StepDataInterface sdi) Initialize the step.
boolean	processRow(StepMetaInterface smi, StepDataInterface sdi) Process an incoming row of data.

从类继承的方法 org.pentaho.di.trans.step.BaseStep

addResultFile, addRowListener, addRowSetToInputRowSets, addRowSetToOutputRowSets, addStepListener, batchComplete, buildLog, canProcessOneRow, checkFeedback, cleanup, clearInputRowSets, clearOutputRowSets, closeQuietly, copyVariablesFrom, decrementLinesRead, decrementLinesWritten, dispatch, dispose, 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, initBeforeStart, initializeVariablesFrom, injectVariables, isBasic, isDebug, isDetailed, isDistributed, isForcingSeparateLogging, isGatheringMetrics, isInitialising, 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, 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

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.pentaho.di.trans.step.StepInterface

addRowListener, addRowSetToInputRowSets, addRowSetToOutputRowSets, addStepListener, batchComplete, 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, 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

从接口继承的方法 org.pentaho.di.core.variables.VariableSpace

copyVariablesFrom, environmentSubstitute, environmentSubstitute, fieldSubstitute, getBooleanValueOfVariable, getParentVariableSpace, getVariable, getVariable, initializeVariablesFrom, injectVariables, listVariables, setParentVariableSpace, setVariable, shareVariablesWith

构造器详细资料

UnivariateStats

public UnivariateStats(StepMeta stepMeta,
                       StepDataInterface stepDataInterface,
                       int copyNr,
                       TransMeta transMeta,
                       Trans trans)

Creates a new UnivariateStats instance.

参数:

stepMeta - holds the step's meta data

stepDataInterface - holds the step's temporary data

copyNr - the number assigned to the step

transMeta - meta data for the transformation

trans - a Trans value

方法详细资料

processRow

public boolean processRow(StepMetaInterface smi,
                          StepDataInterface sdi)
                   throws org.pentaho.di.core.exception.KettleException

Process an incoming row of data.

指定者:

processRow 在接口中 StepInterface

覆盖:

processRow 在类中 BaseStep

参数:

smi - a StepMetaInterface value

sdi - a StepDataInterface value

返回:

a boolean value

抛出:

org.pentaho.di.core.exception.KettleException - if an error occurs

init

public boolean init(StepMetaInterface smi,
                    StepDataInterface sdi)

Initialize the step.

指定者:

init 在接口中 StepInterface

覆盖:

init 在类中 BaseStep

参数:

smi - a StepMetaInterface value

sdi - a StepDataInterface value

返回:

a boolean value