org.pentaho.di.trans.steps.mapping

类 MappingMeta

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.mapping.MappingMeta

所有已实现的接口:

Cloneable, HasRepositoryDirectories, HasRepositoryInterface, ISubTransAwareMeta, StepAttributesInterface, StepMetaInterface

public class MappingMeta
extends StepWithMappingMeta
implements StepMetaInterface, HasRepositoryInterface, ISubTransAwareMeta

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

从以下版本开始:

22-nov-2005

作者:

Matt

字段概要

从类继承的字段 org.pentaho.di.trans.StepWithMappingMeta

directoryPath, fileName, specificationMethod, transName, transObjectId

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

attributes, databases, log, loggingObject, parentStepMeta, STEP_ATTRIBUTES_FILE

构造器概要

构造器

构造器和说明
MappingMeta()

方法概要

限定符和类型	方法和说明
void	check(List<org.pentaho.di.core.CheckResultInterface> remarks, TransMeta transMeta, StepMeta stepMeta, org.pentaho.di.core.row.RowMetaInterface prev, String[] input, String[] output, org.pentaho.di.core.row.RowMetaInterface info, org.pentaho.di.core.variables.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	excludeFromRowLayoutVerification() This method is added to exclude certain steps from layout checking.
void	getFields(org.pentaho.di.core.row.RowMetaInterface row, String origin, org.pentaho.di.core.row.RowMetaInterface[] info, StepMeta nextStep, org.pentaho.di.core.variables.VariableSpace space, Repository repository, org.pentaho.metastore.api.IMetaStore metaStore) Gets the fields.
String[]	getInfoSteps()
List<MappingIODefinition>	getInputMappings()
MappingParameters	getMappingParameters()
org.pentaho.metastore.api.IMetaStore	getMetaStore()
List<MappingIODefinition>	getOutputMappings()
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.
org.pentaho.di.core.ObjectLocationSpecificationMethod	getSpecificationMethod()
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.
StepIOMetaInterface	getStepIOMeta() Returns the Input/Output metadata for this step.
TransMeta.TransformationType[]	getSupportedTransformationTypes()
String[]	getTargetSteps()
String	getXML() Produces the XML string that describes this step's information.
boolean	hasRepositoryReferences()
boolean	isAllowingMultipleInputs()
boolean	isAllowingMultipleOutputs()
boolean[]	isReferencedObjectEnabled()
static TransMeta	loadMappingMeta(MappingMeta mappingMeta, Repository rep, org.pentaho.di.core.variables.VariableSpace space) 已过时。
Object	loadReferencedObject(int index, Repository rep, org.pentaho.metastore.api.IMetaStore metaStore, org.pentaho.di.core.variables.VariableSpace space) Load the referenced object
Object	loadReferencedObject(int index, Repository rep, org.pentaho.di.core.variables.VariableSpace space) 已过时。
void	loadXML(Node stepnode, List<org.pentaho.di.core.database.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, org.pentaho.di.repository.ObjectId id_step, List<org.pentaho.di.core.database.DatabaseMeta> databases) Read the steps information from a Kettle repository
void	saveRep(Repository rep, org.pentaho.metastore.api.IMetaStore metaStore, org.pentaho.di.repository.ObjectId id_transformation, org.pentaho.di.repository.ObjectId id_step) Save the steps data into a Kettle repository
void	searchInfoAndTargetSteps(List<StepMeta> steps) Change step names into step objects to allow them to be name-changed etc.
void	setAllowingMultipleInputs(boolean allowingMultipleInputs)
void	setAllowingMultipleOutputs(boolean allowingMultipleOutputs)
void	setDefault() Set default values
void	setInputMappings(List<MappingIODefinition> inputMappings)
void	setMappingParameters(MappingParameters mappingParameters)
void	setMetaStore(org.pentaho.metastore.api.IMetaStore metaStore)
void	setOutputMappings(List<MappingIODefinition> outputMappings)
void	setRepository(Repository repository)
void	setSpecificationMethod(org.pentaho.di.core.ObjectLocationSpecificationMethod specificationMethod)

从类继承的方法 org.pentaho.di.trans.StepWithMappingMeta

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

从类继承的方法 org.pentaho.di.core.util.serialization.BaseSerializingMeta

withVariables

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

analyseImpact, analyseImpact, cancelQueries, check, check, createEntry, excludeFromCopyDistributeVerification, 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, 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, setChanged, setChanged, setParentStepMeta, setStepIOMeta, supportsErrorHandling

从类继承的方法 java.lang.Object

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

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

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

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

getDirectoryPath, getFileName, getParentStepMeta, getTransName, getTransObjectId

构造器详细资料

MappingMeta

public MappingMeta()

方法详细资料

loadXML

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

从接口复制的说明: StepMetaInterface

Load the values for this step from an XML Node

指定者:

loadXML 在接口中 StepMetaInterface

覆盖:

loadXML 在类中 BaseSerializingMeta

参数:

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

抛出:

org.pentaho.di.core.exception.KettleXMLException - When an unexpected XML error occurred. (malformed etc.)

clone

public Object clone()

从接口复制的说明: StepMetaInterface

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

指定者:

clone 在接口中 StepMetaInterface

覆盖:

clone 在类中 BaseStepMeta

返回:

an exact copy of this step

getXML

public String getXML()

从类复制的说明: BaseStepMeta

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

指定者:

getXML 在接口中 StepMetaInterface

覆盖:

getXML 在类中 BaseSerializingMeta

返回:

String containing the XML describing this step.

readRep

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

从接口复制的说明: StepMetaInterface

Read the steps information from a Kettle repository

指定者:

readRep 在接口中 StepMetaInterface

覆盖:

readRep 在类中 BaseSerializingMeta

参数:

rep - The repository to read from

metaStore - The MetaStore to read external information from

id_step - The step ID

databases - The databases to reference

抛出:

org.pentaho.di.core.exception.KettleException - When an unexpected error occurred (database, network, etc)

saveRep

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

从接口复制的说明: StepMetaInterface

Save the steps data into a Kettle repository

指定者:

saveRep 在接口中 StepMetaInterface

覆盖:

saveRep 在类中 BaseSerializingMeta

参数:

rep - The Kettle repository to save to

metaStore - the metaStore to optionally write to

id_transformation - The transformation ID

id_step - The step ID

抛出:

org.pentaho.di.core.exception.KettleException - When an unexpected error occurred (database, network, etc)

setDefault

public void setDefault()

从接口复制的说明: StepMetaInterface

Set default values

指定者:

setDefault 在接口中 StepMetaInterface

getFields

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

从类复制的说明: BaseStepMeta

Gets the fields.

指定者:

getFields 在接口中 StepMetaInterface

覆盖:

getFields 在类中 BaseStepMeta

参数:

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

抛出:

org.pentaho.di.core.exception.KettleStepException - the kettle step exception

getInfoSteps

public String[] getInfoSteps()

getTargetSteps

public String[] getTargetSteps()

loadMappingMeta

@Deprecated
public static final TransMeta loadMappingMeta(MappingMeta mappingMeta,
                                                           Repository rep,
                                                           org.pentaho.di.core.variables.VariableSpace space)
                                                    throws org.pentaho.di.core.exception.KettleException

已过时。

抛出:

org.pentaho.di.core.exception.KettleException

check

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

从接口复制的说明: StepMetaInterface

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

指定者:

check 在接口中 StepMetaInterface

覆盖:

check 在类中 BaseStepMeta

参数:

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)

从接口复制的说明: StepMetaInterface

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

指定者:

getStep 在接口中 StepMetaInterface

参数:

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()

从接口复制的说明: 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.

指定者:

getStepData 在接口中 StepMetaInterface

返回:

The appropriate StepDataInterface class.

getInputMappings

public List<MappingIODefinition> getInputMappings()

覆盖:

getInputMappings 在类中 StepWithMappingMeta

返回:

the inputMappings

setInputMappings

public void setInputMappings(List<MappingIODefinition> inputMappings)

参数:

inputMappings - the inputMappings to set

getOutputMappings

public List<MappingIODefinition> getOutputMappings()

覆盖:

getOutputMappings 在类中 StepWithMappingMeta

返回:

the outputMappings

setOutputMappings

public void setOutputMappings(List<MappingIODefinition> outputMappings)

参数:

outputMappings - the outputMappings to set

getMappingParameters

public MappingParameters getMappingParameters()

返回:

the mappingParameters

setMappingParameters

public void setMappingParameters(MappingParameters mappingParameters)

参数:

mappingParameters - the mappingParameters to set

getResourceDependencies

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

从类复制的说明: BaseStepMeta

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

指定者:

getResourceDependencies 在接口中 StepMetaInterface

覆盖:

getResourceDependencies 在类中 BaseStepMeta

返回:

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

getRepository

public Repository getRepository()

指定者:

getRepository 在接口中 HasRepositoryInterface

返回:

the repository

setRepository

public void setRepository(Repository repository)

指定者:

setRepository 在接口中 HasRepositoryInterface

参数:

repository - the repository to set

getSpecificationMethod

public org.pentaho.di.core.ObjectLocationSpecificationMethod getSpecificationMethod()

指定者:

getSpecificationMethod 在接口中 ISubTransAwareMeta

覆盖:

getSpecificationMethod 在类中 StepWithMappingMeta

返回:

the specificationMethod

setSpecificationMethod

public void setSpecificationMethod(org.pentaho.di.core.ObjectLocationSpecificationMethod specificationMethod)

覆盖:

setSpecificationMethod 在类中 StepWithMappingMeta

参数:

specificationMethod - the specificationMethod to set

getStepIOMeta

public StepIOMetaInterface getStepIOMeta()

从接口复制的说明: StepMetaInterface

Returns the Input/Output metadata for this step.

指定者:

getStepIOMeta 在接口中 StepMetaInterface

覆盖:

getStepIOMeta 在类中 BaseStepMeta

excludeFromRowLayoutVerification

public boolean excludeFromRowLayoutVerification()

从类复制的说明: BaseStepMeta

This method is added to exclude certain steps from layout checking.

指定者:

excludeFromRowLayoutVerification 在接口中 StepMetaInterface

覆盖:

excludeFromRowLayoutVerification 在类中 BaseStepMeta

searchInfoAndTargetSteps

public void searchInfoAndTargetSteps(List<StepMeta> steps)

从类复制的说明: BaseStepMeta

Change step names into step objects to allow them to be name-changed etc.

指定者:

searchInfoAndTargetSteps 在接口中 StepMetaInterface

覆盖:

searchInfoAndTargetSteps 在类中 BaseStepMeta

参数:

steps - the steps to reference

getSupportedTransformationTypes

public TransMeta.TransformationType[] getSupportedTransformationTypes()

指定者:

getSupportedTransformationTypes 在接口中 StepMetaInterface

覆盖:

getSupportedTransformationTypes 在类中 BaseStepMeta

返回:

The supported transformation types that this step supports.

hasRepositoryReferences

public boolean hasRepositoryReferences()

指定者:

hasRepositoryReferences 在接口中 StepMetaInterface

覆盖:

hasRepositoryReferences 在类中 BaseStepMeta

返回:

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

lookupRepositoryReferences

public void lookupRepositoryReferences(Repository repository)
                                throws org.pentaho.di.core.exception.KettleException

从类复制的说明: BaseStepMeta

Look up the references after import

指定者:

lookupRepositoryReferences 在接口中 StepMetaInterface

覆盖:

lookupRepositoryReferences 在类中 BaseStepMeta

参数:

repository - the repository to reference.

抛出:

org.pentaho.di.core.exception.KettleException

isAllowingMultipleInputs

public boolean isAllowingMultipleInputs()

返回:

the allowingMultipleInputs

setAllowingMultipleInputs

public void setAllowingMultipleInputs(boolean allowingMultipleInputs)

参数:

allowingMultipleInputs - the allowingMultipleInputs to set

isAllowingMultipleOutputs

public boolean isAllowingMultipleOutputs()

返回:

the allowingMultipleOutputs

setAllowingMultipleOutputs

public void setAllowingMultipleOutputs(boolean allowingMultipleOutputs)

参数:

allowingMultipleOutputs - the allowingMultipleOutputs to set

getReferencedObjectDescriptions

public String[] getReferencedObjectDescriptions()

指定者:

getReferencedObjectDescriptions 在接口中 StepMetaInterface

覆盖:

getReferencedObjectDescriptions 在类中 BaseStepMeta

返回:

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

isReferencedObjectEnabled

public boolean[] isReferencedObjectEnabled()

指定者:

isReferencedObjectEnabled 在接口中 StepMetaInterface

覆盖:

isReferencedObjectEnabled 在类中 BaseStepMeta

返回:

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

loadReferencedObject

@Deprecated
public Object loadReferencedObject(int index,
                                                Repository rep,
                                                org.pentaho.di.core.variables.VariableSpace space)
                                         throws org.pentaho.di.core.exception.KettleException

已过时。

从类复制的说明: BaseStepMeta

Load the referenced object

覆盖:

loadReferencedObject 在类中 BaseStepMeta

参数:

index - the object index to load

rep - the repository

space - the variable space to use

返回:

the referenced object once loaded

抛出:

org.pentaho.di.core.exception.KettleException

loadReferencedObject

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

Load the referenced object

指定者:

loadReferencedObject 在接口中 StepMetaInterface

覆盖:

loadReferencedObject 在类中 BaseStepMeta

参数:

index - the object index to load

rep - the repository

metaStore - the MetaStore to use

space - the variable space to use

返回:

the referenced object once loaded

抛出:

org.pentaho.di.core.exception.KettleException

getMetaStore

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

setMetaStore

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