org.pentaho.di.trans.steps.singlethreader

Class SingleThreaderMeta

java.lang.Object

org.pentaho.di.trans.step.BaseStepMeta

org.pentaho.di.core.util.serialization.BaseSerializingMeta

org.pentaho.di.trans.StepWithMappingMeta

org.pentaho.di.trans.steps.singlethreader.SingleThreaderMeta

All Implemented Interfaces:

Cloneable, HasRepositoryDirectories, HasRepositoryInterface, ISubTransAwareMeta, StepAttributesInterface, StepMetaInterface

public class SingleThreaderMeta
extends StepWithMappingMeta
implements StepMetaInterface, HasRepositoryInterface, ISubTransAwareMeta

Meta-data for the Mapping step: contains name of the (sub-)transformation to execute

Since:

22-nov-2005

Author:

Matt

Field Summary

Fields inherited from class org.pentaho.di.trans.StepWithMappingMeta

directoryPath, fileName, specificationMethod, transName, transObjectId

Fields inherited from class org.pentaho.di.trans.step.BaseStepMeta

attributes, databases, log, loggingObject, parentStepMeta, repository, STEP_ATTRIBUTES_FILE

Constructor Summary

Constructors

Constructor and Description
SingleThreaderMeta()

Method Summary

Modifier and Type	Method and Description
void	allocate(int nrParameters)
void	check(List<CheckResultInterface> remarks, TransMeta transMeta, StepMeta stepMeta, RowMetaInterface prev, String[] input, String[] output, RowMetaInterface info, VariableSpace space, Repository repository, org.pentaho.metastore.api.IMetaStore metaStore) Checks the settings of this step and puts the findings in a remarks List.
Object	clone() Make an exact copy of this step, make sure to explicitly copy Collections etc.
boolean	excludeFromCopyDistributeVerification() This method is added to exclude certain steps from copy/distribute checking.
String	getBatchSize()
String	getBatchTime()
void	getFields(RowMetaInterface row, String origin, RowMetaInterface[] info, StepMeta nextStep, VariableSpace space, Repository repository, org.pentaho.metastore.api.IMetaStore metaStore) Gets the fields.
String	getInjectStep()
org.pentaho.metastore.api.IMetaStore	getMetaStore()
String[]	getParameters()
String[]	getParameterValues()
String[]	getReferencedObjectDescriptions()
Repository	getRepository()
List<ResourceReference>	getResourceDependencies(TransMeta transMeta, StepMeta stepInfo) Get a list of all the resource dependencies that the step is depending on.
String	getRetrieveStep()
StepInterface	getStep(StepMeta stepMeta, StepDataInterface stepDataInterface, int cnr, TransMeta tr, Trans trans) Get the executing step, needed by Trans to launch a step.
StepDataInterface	getStepData() Get a new instance of the appropriate data class.
TransMeta.TransformationType[]	getSupportedTransformationTypes()
String	getXML() Produces the XML string that describes this step's information.
boolean	hasRepositoryReferences()
boolean	isPassingAllParameters()
boolean[]	isReferencedObjectEnabled()
Object	loadReferencedObject(int index, Repository rep, org.pentaho.metastore.api.IMetaStore metaStore, VariableSpace space) Load the referenced object
Object	loadReferencedObject(int index, Repository rep, VariableSpace space) Deprecated.
static TransMeta	loadSingleThreadedTransMeta(SingleThreaderMeta mappingMeta, Repository rep, VariableSpace space)
static TransMeta	loadSingleThreadedTransMeta(SingleThreaderMeta mappingMeta, Repository rep, VariableSpace space, boolean passingAllParameters)
void	loadXML(Node stepnode, List<DatabaseMeta> databases, org.pentaho.metastore.api.IMetaStore metaStore) Load the values for this step from an XML Node
void	lookupRepositoryReferences(Repository repository) Look up the references after import
void	readRep(Repository rep, org.pentaho.metastore.api.IMetaStore metaStore, ObjectId id_step, List<DatabaseMeta> databases) Read the steps information from a Kettle repository
void	saveRep(Repository rep, org.pentaho.metastore.api.IMetaStore metaStore, ObjectId id_transformation, ObjectId id_step) Save the steps data into a Kettle repository
void	setBatchSize(String batchSize)
void	setBatchTime(String batchTime)
void	setDefault() Set default values
void	setInjectStep(String injectStep)
void	setMetaStore(org.pentaho.metastore.api.IMetaStore metaStore)
void	setParameters(String[] parameters)
void	setParameterValues(String[] parameterValues)
void	setPassingAllParameters(boolean passingAllParameters)
void	setRepository(Repository repository)
void	setRetrieveStep(String retrieveStep)
boolean	supportsErrorHandling()

Methods inherited from class org.pentaho.di.trans.StepWithMappingMeta

activateParams, activateParams, addMissingVariables, exportResources, getDirectories, getDirectoryPath, getFileName, getInputMappings, getOutputMappings, getSpecificationMethod, getSpecificationMethods, getTransName, getTransObjectId, loadMappingMeta, loadMappingMeta, replaceFileName, replaceVariableValues, setDirectories, setDirectoryPath, setFileName, setSpecificationMethod, setTransName, setTransObjectId

Methods inherited from class org.pentaho.di.core.util.serialization.BaseSerializingMeta

copyObject, withVariables

Methods inherited from class org.pentaho.di.trans.step.BaseStepMeta

analyseImpact, analyseImpact, cancelQueries, check, check, createEntry, excludeFromRowLayoutVerification, exportResources, extractStepMetadataEntries, findAttribute, findParent, findParentEntry, getActiveReferencedObjectDescription, getDescription, getDialogClassName, getFields, getLog, getLogChannelId, getName, getObjectCopy, getObjectId, getObjectRevision, getObjectType, getOptionalStreams, getParent, getParentStepMeta, getRepCode, getRepositoryDirectory, getRequiredFields, getRequiredFields, getSQLStatements, getSQLStatements, getStepInjectionMetadataEntries, getStepIOMeta, getStepIOMeta, getStepMetaInjectionInterface, getTableFields, getTooltip, getUsedArguments, getUsedDatabaseConnections, getUsedLibraries, getXmlCode, handleStreamSelection, hasChanged, isBasic, isDebug, isDetailed, isRowLevel, loadStepAttributes, loadXML, loadXML, logBasic, logBasic, logDebug, logDebug, logDetailed, logDetailed, logError, logError, logError, logMinimal, logMinimal, logRowlevel, logRowlevel, readRep, readRep, resetStepIoMeta, saveRep, searchInfoAndTargetSteps, setChanged, setChanged, setParentStepMeta, setStepIOMeta

Methods inherited from class java.lang.Object

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

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

analyseImpact, analyseImpact, cancelQueries, check, cleanAfterHopFromRemove, cleanAfterHopFromRemove, cleanAfterHopToRemove, excludeFromRowLayoutVerification, exportResources, exportResources, extractStepMetadataEntries, fetchTransMeta, getActiveReferencedObjectDescription, getDialogClassName, getFields, getOptionalStreams, getParentStepMeta, getRequiredFields, getSQLStatements, getSQLStatements, getStepIOMeta, getStepMetaInjectionInterface, getTableFields, getUsedArguments, getUsedDatabaseConnections, getUsedLibraries, handleStreamSelection, hasChanged, loadXML, passDataToServletOutput, readRep, resetStepIoMeta, saveRep, searchInfoAndTargetSteps, setChanged, setParentStepMeta

Methods inherited from interface org.pentaho.di.trans.ISubTransAwareMeta

getDirectoryPath, getFileName, getParentStepMeta, getSpecificationMethod, getTransName, getTransObjectId

Constructor Detail

SingleThreaderMeta

public SingleThreaderMeta()

Method Detail

loadXML

public void loadXML(Node stepnode,
                    List<DatabaseMeta> databases,
                    org.pentaho.metastore.api.IMetaStore metaStore)
             throws KettleXMLException

Description copied from interface: StepMetaInterface

Load the values for this step from an XML Node

Specified by:

loadXML in interface StepMetaInterface

Overrides:

loadXML in class BaseSerializingMeta

Parameters:

stepnode - the Node to get the info from

databases - The available list of databases to reference to

metaStore - the metastore to optionally load external reference metadata from

Throws:

KettleXMLException - When an unexpected XML error occurred. (malformed etc.)

allocate

public void allocate(int nrParameters)

clone

public Object clone()

Description copied from interface: StepMetaInterface

Make an exact copy of this step, make sure to explicitly copy Collections etc.

Specified by:

clone in interface StepMetaInterface

Overrides:

clone in class BaseStepMeta

Returns:

an exact copy of this step

getXML

public String getXML()

Description copied from class: BaseStepMeta

Produces the XML string that describes this step's information.

Specified by:

getXML in interface StepMetaInterface

Overrides:

getXML in class BaseSerializingMeta

Returns:

String containing the XML describing this step.

readRep

public void readRep(Repository rep,
                    org.pentaho.metastore.api.IMetaStore metaStore,
                    ObjectId id_step,
                    List<DatabaseMeta> databases)
             throws KettleException

Description copied from interface: StepMetaInterface

Read the steps information from a Kettle repository

Specified by:

readRep in interface StepMetaInterface

Overrides:

readRep in class BaseSerializingMeta

Parameters:

rep - The repository to read from

metaStore - The MetaStore to read external information from

id_step - The step ID

databases - The databases to reference

Throws:

KettleException - When an unexpected error occurred (database, network, etc)

saveRep

public void saveRep(Repository rep,
                    org.pentaho.metastore.api.IMetaStore metaStore,
                    ObjectId id_transformation,
                    ObjectId id_step)
             throws KettleException

Description copied from interface: StepMetaInterface

Save the steps data into a Kettle repository

Specified by:

saveRep in interface StepMetaInterface

Overrides:

saveRep in class BaseSerializingMeta

Parameters:

rep - The Kettle repository to save to

metaStore - the metaStore to optionally write to

id_transformation - The transformation ID

id_step - The step ID

Throws:

KettleException - When an unexpected error occurred (database, network, etc)

setDefault

public void setDefault()

Description copied from interface: StepMetaInterface

Set default values

Specified by:

setDefault in interface StepMetaInterface

getFields

public void getFields(RowMetaInterface row,
                      String origin,
                      RowMetaInterface[] info,
                      StepMeta nextStep,
                      VariableSpace space,
                      Repository repository,
                      org.pentaho.metastore.api.IMetaStore metaStore)
               throws KettleStepException

Description copied from class: BaseStepMeta

Gets the fields.

Specified by:

getFields in interface StepMetaInterface

Overrides:

getFields in class BaseStepMeta

Parameters:

row - the input row meta that is modified in this method to reflect the output row metadata of the step

origin - Name of the step to use as input for the origin field in the values

info - Fields used as extra lookup information

nextStep - the next step that is targeted

space - the space The variable space to use to replace variables

repository - the repository to use to load Kettle metadata objects impacting the output fields

metaStore - the MetaStore to use to load additional external data or metadata impacting the output fields

Throws:

KettleStepException - the kettle step exception

loadSingleThreadedTransMeta

public static final TransMeta loadSingleThreadedTransMeta(SingleThreaderMeta mappingMeta,
                                                          Repository rep,
                                                          VariableSpace space)
                                                   throws KettleException

Throws:

KettleException

loadSingleThreadedTransMeta

public static final TransMeta loadSingleThreadedTransMeta(SingleThreaderMeta mappingMeta,
                                                          Repository rep,
                                                          VariableSpace space,
                                                          boolean passingAllParameters)
                                                   throws KettleException

Throws:

KettleException

check

public void check(List<CheckResultInterface> remarks,
                  TransMeta transMeta,
                  StepMeta stepMeta,
                  RowMetaInterface prev,
                  String[] input,
                  String[] output,
                  RowMetaInterface info,
                  VariableSpace space,
                  Repository repository,
                  org.pentaho.metastore.api.IMetaStore metaStore)

Description copied from interface: StepMetaInterface

Checks the settings of this step and puts the findings in a remarks List.

Specified by:

check in interface StepMetaInterface

Overrides:

check in class BaseStepMeta

Parameters:

remarks - The list to put the remarks in @see org.pentaho.di.core.CheckResult

stepMeta - The stepMeta to help checking

prev - The fields coming from the previous step

input - The input step names

output - The output step names

info - The fields that are used as information by the step

space - the variable space to resolve variable expressions with

repository - the repository to use to load Kettle metadata objects impacting the output fields

metaStore - the MetaStore to use to load additional external data or metadata impacting the output fields

getStep

public StepInterface getStep(StepMeta stepMeta,
                             StepDataInterface stepDataInterface,
                             int cnr,
                             TransMeta tr,
                             Trans trans)

Description copied from interface: StepMetaInterface

Get the executing step, needed by Trans to launch a step.

Specified by:

getStep in interface StepMetaInterface

Parameters:

stepMeta - The step info

stepDataInterface - the step data interface linked to this step. Here the step can store temporary data, database connections, etc.

cnr - The copy nr to get

tr - The transformation info

trans - The launching transformation

getStepData

public StepDataInterface getStepData()

Description copied from interface: StepMetaInterface

Get a new instance of the appropriate data class. This data class implements the StepDataInterface. It basically contains the persisting data that needs to live on, even if a worker thread is terminated.

Specified by:

getStepData in interface StepMetaInterface

Returns:

The appropriate StepDataInterface class.

getResourceDependencies

public List<ResourceReference> getResourceDependencies(TransMeta transMeta,
                                                       StepMeta stepInfo)

Description copied from class: BaseStepMeta

Get a list of all the resource dependencies that the step is depending on.

Specified by:

getResourceDependencies in interface StepMetaInterface

Overrides:

getResourceDependencies in class BaseStepMeta

Returns:

a list of all the resource dependencies that the step is depending on

getRepository

public Repository getRepository()

Specified by:

getRepository in interface HasRepositoryInterface

Returns:

the repository

setRepository

public void setRepository(Repository repository)

Specified by:

setRepository in interface HasRepositoryInterface

Parameters:

repository - the repository to set

getSupportedTransformationTypes

public TransMeta.TransformationType[] getSupportedTransformationTypes()

Specified by:

getSupportedTransformationTypes in interface StepMetaInterface

Overrides:

getSupportedTransformationTypes in class BaseStepMeta

Returns:

The supported transformation types that this step supports.

getBatchSize

public String getBatchSize()

Returns:

the batchSize

setBatchSize

public void setBatchSize(String batchSize)

Parameters:

batchSize - the batchSize to set

getInjectStep

public String getInjectStep()

Returns:

the injectStep

setInjectStep

public void setInjectStep(String injectStep)

Parameters:

injectStep - the injectStep to set

getRetrieveStep

public String getRetrieveStep()

Returns:

the retrieveStep

setRetrieveStep

public void setRetrieveStep(String retrieveStep)

Parameters:

retrieveStep - the retrieveStep to set

isPassingAllParameters

public boolean isPassingAllParameters()

Returns:

the passingAllParameters

setPassingAllParameters

public void setPassingAllParameters(boolean passingAllParameters)

Parameters:

passingAllParameters - the passingAllParameters to set

getParameters

public String[] getParameters()

Returns:

the parameters

setParameters

public void setParameters(String[] parameters)

Parameters:

parameters - the parameters to set

getParameterValues

public String[] getParameterValues()

Returns:

the parameterValues

setParameterValues

public void setParameterValues(String[] parameterValues)

Parameters:

parameterValues - the parameterValues to set

getBatchTime

public String getBatchTime()

Returns:

the batchTime

setBatchTime

public void setBatchTime(String batchTime)

Parameters:

batchTime - the batchTime to set

hasRepositoryReferences

public boolean hasRepositoryReferences()

Specified by:

hasRepositoryReferences in interface StepMetaInterface

Overrides:

hasRepositoryReferences in class BaseStepMeta

Returns:

True if the job entry defines one or more references to a repository object.

lookupRepositoryReferences

public void lookupRepositoryReferences(Repository repository)
                                throws KettleException

Description copied from class: BaseStepMeta

Look up the references after import

Specified by:

lookupRepositoryReferences in interface StepMetaInterface

Overrides:

lookupRepositoryReferences in class BaseStepMeta

Parameters:

repository - the repository to reference.

Throws:

KettleException

getReferencedObjectDescriptions

public String[] getReferencedObjectDescriptions()

Specified by:

getReferencedObjectDescriptions in interface StepMetaInterface

Overrides:

getReferencedObjectDescriptions in class BaseStepMeta

Returns:

The objects referenced in the step, like a mapping, a transformation, a job, ...

isReferencedObjectEnabled

public boolean[] isReferencedObjectEnabled()

Specified by:

isReferencedObjectEnabled in interface StepMetaInterface

Overrides:

isReferencedObjectEnabled in class BaseStepMeta

Returns:

true for each referenced object that is enabled or has a valid reference definition.

loadReferencedObject

@Deprecated
public Object loadReferencedObject(int index,
                                               Repository rep,
                                               VariableSpace space)
                                        throws KettleException

Deprecated.

Load the referenced object

Overrides:

loadReferencedObject in class BaseStepMeta

Parameters:

index - the object index to load

rep - the repository

space - the variable space to use

Returns:

the referenced object once loaded

Throws:

KettleException

loadReferencedObject

public Object loadReferencedObject(int index,
                                   Repository rep,
                                   org.pentaho.metastore.api.IMetaStore metaStore,
                                   VariableSpace space)
                            throws KettleException

Description copied from interface: StepMetaInterface

Load the referenced object

Specified by:

loadReferencedObject in interface StepMetaInterface

Overrides:

loadReferencedObject in class BaseStepMeta

Parameters:

index - the referenced object index to load (in case there are multiple references)

rep - the repository

metaStore - the MetaStore to use

space - the variable space to use

Returns:

the referenced object once loaded

Throws:

KettleException

supportsErrorHandling

public boolean supportsErrorHandling()

Specified by:

supportsErrorHandling in interface StepMetaInterface

Overrides:

supportsErrorHandling in class BaseStepMeta

Returns:

true if this step supports error "reporting" on rows: the ability to send rows to a certain target step.

excludeFromCopyDistributeVerification

public boolean excludeFromCopyDistributeVerification()

Description copied from class: BaseStepMeta

This method is added to exclude certain steps from copy/distribute checking.

Specified by:

excludeFromCopyDistributeVerification in interface StepMetaInterface

Overrides:

excludeFromCopyDistributeVerification in class BaseStepMeta

setMetaStore

public void setMetaStore(org.pentaho.metastore.api.IMetaStore metaStore)

getMetaStore

public org.pentaho.metastore.api.IMetaStore getMetaStore()