org.pentaho.di.trans.steps.script
Interface ScriptInterface

All Superinterfaces:

HasLogChannelInterface, StepInterface, VariableSpace

public interface ScriptInterface
extends StepInterface

Interface to make the real ScriptValueMod and ScriptValueModDummy similar.

Author:

Sven Boden

Method Summary

void	addRowListener(RowListener rowListener) Add a rowlistener to the step allowing you to inspect (or manipulate, be careful) the rows coming in or exiting the step.
void	cleanup() Call this method typically, after ALL the slave transformations in a clustered run have finished.
void	dispose(StepMetaInterface sii, StepDataInterface sdi) Dispose of this step: close files, empty logs, etc.
long	getErrors() Get the number of errors
List<RowSet>	getInputRowSets()
long	getLinesInput()
long	getLinesOutput()
long	getLinesRead()
long	getLinesRejected()
long	getLinesUpdated()
long	getLinesWritten()
List<RowSet>	getOutputRowSets()
String	getPartitionID()
Object[]	getRow()
List<RowListener>	getRowListeners()
String	getStepID()
String	getStepname() Get the name of the step.
boolean	init(StepMetaInterface stepMetaInterface, StepDataInterface stepDataInterface) Initialize and do work where other steps need to wait for...
boolean	isAlive()
boolean	isPartitioned()
boolean	isStopped()
void	markStart() Mark the start time of the step.
void	markStop() Mark the end time of the step.
void	pauseRunning() Pause a running step
boolean	processRow(StepMetaInterface smi, StepDataInterface sdi) Perform the equivalent of processing one row.
void	putRow(RowMetaInterface rowMeta, Object[] row) Put a row on the destination rowsets.
void	removeRowListener(RowListener rowListener) Remove a rowlistener from this step.
void	resumeRunning() Resume a running step
void	run()
void	setErrors(long errors) Sets the number of errors
void	setOutputDone() Signal output done to destination steps
void	setPartitionID(String partitionID)
void	start()
void	stopAll() Flags all rowsets as stopped/completed/finished.
void	stopRunning(StepMetaInterface stepMetaInterface, StepDataInterface stepDataInterface) Stop running operations...

Methods inherited from interface org.pentaho.di.trans.step.StepInterface

addStepListener, batchComplete, canProcessOneRow, getCopy, getLogChannel, getProcessed, getResultFiles, getRuntime, getStatus, getStepMeta, getTrans, identifyErrorOutput, initBeforeStart, isMapping, isPaused, isRunning, isUsingThreadPriorityManagment, rowsetInputSize, rowsetOutputSize, setLinesRejected, setPartitioned, setRepartitioning, setRunning, setStopped, setUsingThreadPriorityManagment

Methods inherited from interface org.pentaho.di.core.variables.VariableSpace

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

Method Detail

processRow

boolean processRow(StepMetaInterface smi,
                   StepDataInterface sdi)
                   throws 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 interface StepInterface

Parameters:

smi - The steps metadata to work with

sdi - 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:

KettleException

addRowListener

void addRowListener(RowListener rowListener)

Description copied from interface: StepInterface

Add a rowlistener to the step allowing you to inspect (or manipulate, be careful) the rows coming in or exiting the step.

Specified by:

addRowListener in interface StepInterface

Parameters:

rowListener - the rowlistener to add

dispose

void dispose(StepMetaInterface sii,
             StepDataInterface sdi)

Description copied from interface: StepInterface

Dispose of this step: close files, empty logs, etc.

Specified by:

dispose in interface StepInterface

Parameters:

sii - The metadata to work with

sdi - The data to dispose of

getErrors

long getErrors()

Description copied from interface: StepInterface

Get the number of errors

Specified by:

getErrors in interface StepInterface

Returns:

the number of errors

getInputRowSets

List<RowSet> getInputRowSets()

Specified by:

getInputRowSets in interface StepInterface

Returns:

The list of active input rowsets for the step

getLinesInput

long getLinesInput()

Specified by:

getLinesInput in interface StepInterface

Returns:

Returns the linesInput.

getLinesOutput

long getLinesOutput()

Specified by:

getLinesOutput in interface StepInterface

Returns:

Returns the linesOutput.

getLinesRead

long getLinesRead()

Specified by:

getLinesRead in interface StepInterface

Returns:

Returns the linesRead.

getLinesUpdated

long getLinesUpdated()

Specified by:

getLinesUpdated in interface StepInterface

Returns:

Returns the linesUpdated.

getLinesWritten

long getLinesWritten()

Specified by:

getLinesWritten in interface StepInterface

Returns:

Returns the linesWritten.

getLinesRejected

long getLinesRejected()

Specified by:

getLinesRejected in interface StepInterface

Returns:

Returns the lines rejected by error handling.

getOutputRowSets

List<RowSet> getOutputRowSets()

Specified by:

getOutputRowSets in interface StepInterface

Returns:

The list of active output rowsets for the step

getPartitionID

String getPartitionID()

Specified by:

getPartitionID in interface StepInterface

Returns:

the steps partition ID

getRow

Object[] getRow()
                throws KettleException

Specified by:

getRow in interface StepInterface

Returns:

a row from the source step(s).

Throws:

KettleException

getRowListeners

List<RowListener> getRowListeners()

Specified by:

getRowListeners in interface StepInterface

Returns:

a list of the installed RowListeners

getStepID

String getStepID()

Specified by:

getStepID in interface StepInterface

Returns:

the type ID of the step...

getStepname

String getStepname()

Description copied from interface: StepInterface

Get the name of the step.

Specified by:

getStepname in interface StepInterface

Returns:

the name of the step

init

boolean init(StepMetaInterface stepMetaInterface,
             StepDataInterface stepDataInterface)

Description copied from interface: StepInterface

Initialize and do work where other steps need to wait for...

Specified by:

init in interface StepInterface

Parameters:

stepMetaInterface - The metadata to work with

stepDataInterface - The data to initialize

isAlive

boolean isAlive()

isPartitioned

boolean isPartitioned()

Specified by:

isPartitioned in interface StepInterface

Returns:

true if the step is running partitioned

isStopped

boolean isStopped()

Specified by:

isStopped in interface StepInterface

Returns:

True if the step is marked as stopped. Execution should stop immediate.

markStart

void markStart()

Description copied from interface: StepInterface

Mark the start time of the step.

Specified by:

markStart in interface StepInterface

markStop

void markStop()

Description copied from interface: StepInterface

Mark the end time of the step.

Specified by:

markStop in interface StepInterface

putRow

void putRow(RowMetaInterface rowMeta,
            Object[] row)
            throws KettleException

Description copied from interface: StepInterface

Put a row on the destination rowsets.

Specified by:

putRow in interface StepInterface

Parameters:

rowMeta - The row to send to the destinations steps

Throws:

KettleException

removeRowListener

void removeRowListener(RowListener rowListener)

Description copied from interface: StepInterface

Remove a rowlistener from this step.

Specified by:

removeRowListener in interface StepInterface

Parameters:

rowListener - the rowlistener to remove

run

void run()

setErrors

void setErrors(long errors)

Description copied from interface: StepInterface

Sets the number of errors

Specified by:

setErrors in interface StepInterface

Parameters:

errors - the number of errors to set

setOutputDone

void setOutputDone()

Description copied from interface: StepInterface

Signal output done to destination steps

Specified by:

setOutputDone in interface StepInterface

setPartitionID

void setPartitionID(String partitionID)

Specified by:

setPartitionID in interface StepInterface

Parameters:

partitionID - the partitionID to set

start

void start()

stopAll

void stopAll()

Description copied from interface: StepInterface

Flags all rowsets as stopped/completed/finished.

Specified by:

stopAll in interface StepInterface

stopRunning

void stopRunning(StepMetaInterface stepMetaInterface,
                 StepDataInterface stepDataInterface)
                 throws KettleException

Description copied from interface: StepInterface

Stop running operations...

Specified by:

stopRunning in interface StepInterface

Parameters:

stepMetaInterface - The metadata that might be needed by the step to stop running.

stepDataInterface - The interface to the step data containing the connections, resultsets, open files, etc.

Throws:

KettleException

cleanup

void cleanup()

Description copied from interface: StepInterface

Call this method typically, after ALL the slave transformations in a clustered run have finished.

Specified by:

cleanup in interface StepInterface

pauseRunning

void pauseRunning()

Description copied from interface: StepInterface

Pause a running step

Specified by:

pauseRunning in interface StepInterface

resumeRunning

void resumeRunning()

Description copied from interface: StepInterface

Resume a running step

Specified by:

resumeRunning in interface StepInterface