org.pentaho.di.trans.steps.selectvalues

类 SelectValuesMeta

java.lang.Object

org.pentaho.di.trans.step.BaseStepMeta

org.pentaho.di.trans.steps.selectvalues.SelectValuesMeta

所有已实现的接口:

Cloneable, StepAttributesInterface, StepMetaInterface

public class SelectValuesMeta
extends BaseStepMeta
implements StepMetaInterface

Meta Data class for the Select Values Step. Created on 02-jun-2003

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	SelectValuesMeta.SelectField

字段概要

字段

限定符和类型	字段和说明
static int	UNDEFINED

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

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

构造器概要

构造器

构造器和说明
SelectValuesMeta()

方法概要

限定符和类型	方法和说明
void	allocate(int nrFields, int nrRemove, int nrMeta)
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.
void	getDeleteFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta)
String[]	getDeleteName()
List<FieldnameLineage>	getFieldnameLineage() We will describe in which way the field names change between input and output in this step.
void	getFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta, String name, 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.
SelectMetadataChange[]	getMeta()
void	getMetadataFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta, String name) 已过时。
void	getMetadataFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta, String name, org.pentaho.di.core.variables.VariableSpace space)
SelectValuesMeta.SelectField[]	getSelectFields()
void	getSelectFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta, String name)
int[]	getSelectLength()
String[]	getSelectName()
int[]	getSelectPrecision()
String[]	getSelectRename()
StepInterface	getStep(StepMeta stepMeta, StepDataInterface stepDataInterface, int cnr, TransMeta transMeta, Trans trans) Get the executing step, needed by Trans to launch a step.
StepDataInterface	getStepData() Get a new instance of the appropriate data class.
String	getXML() Produces the XML string that describes this step's information.
boolean	isSelectingAndSortingUnspecifiedFields()
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	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	setDefault() Set default values
void	setDeleteName(String[] deleteName)
void	setMeta(SelectMetadataChange[] meta)
void	setSelectFields(SelectValuesMeta.SelectField[] selectFields)
void	setSelectingAndSortingUnspecifiedFields(boolean selectingAndSortingUnspecifiedFields)
void	setSelectLength(int[] selectLength)
void	setSelectName(String[] selectName)
void	setSelectPrecision(int[] selectPrecision)
void	setSelectRename(String[] selectRename)
boolean	supportsErrorHandling()

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

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

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, excludeFromRowLayoutVerification, exportResources, exportResources, extractStepMetadataEntries, fetchTransMeta, getActiveReferencedObjectDescription, getDialogClassName, getFields, getOptionalStreams, getParentStepMeta, getReferencedObjectDescriptions, getRequiredFields, getResourceDependencies, getSQLStatements, getSQLStatements, getStepIOMeta, getStepMetaInjectionInterface, getSupportedTransformationTypes, getTableFields, getUsedArguments, getUsedDatabaseConnections, getUsedLibraries, handleStreamSelection, hasChanged, hasRepositoryReferences, isReferencedObjectEnabled, loadReferencedObject, loadXML, lookupRepositoryReferences, passDataToServletOutput, readRep, resetStepIoMeta, saveRep, searchInfoAndTargetSteps, setChanged, setParentStepMeta

字段详细资料

UNDEFINED

public static final int UNDEFINED

另请参阅:

常量字段值

构造器详细资料

SelectValuesMeta

public SelectValuesMeta()

方法详细资料

getDeleteName

public String[] getDeleteName()

返回:

Returns the deleteName.

setDeleteName

public void setDeleteName(String[] deleteName)

参数:

deleteName - The deleteName to set.

setSelectName

public void setSelectName(String[] selectName)

参数:

selectName - The selectName to set.

getSelectName

public String[] getSelectName()

setSelectRename

public void setSelectRename(String[] selectRename)

参数:

selectRename - The selectRename to set.

getSelectRename

public String[] getSelectRename()

setSelectLength

public void setSelectLength(int[] selectLength)

参数:

selectLength - The selectLength to set.

getSelectLength

public int[] getSelectLength()

setSelectPrecision

public void setSelectPrecision(int[] selectPrecision)

参数:

selectPrecision - The selectPrecision to set.

getSelectPrecision

public int[] getSelectPrecision()

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 BaseStepMeta

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.)

allocate

public void allocate(int nrFields,
                     int nrRemove,
                     int nrMeta)

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

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

getSelectFields

public void getSelectFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta,
                            String name)
                     throws org.pentaho.di.core.exception.KettleStepException

抛出:

org.pentaho.di.core.exception.KettleStepException

getDeleteFields

public void getDeleteFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta)
                     throws org.pentaho.di.core.exception.KettleStepException

抛出:

org.pentaho.di.core.exception.KettleStepException

getMetadataFields

@Deprecated
public void getMetadataFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta,
                                           String name)
                                    throws org.pentaho.di.core.exception.KettlePluginException

已过时。

抛出:

org.pentaho.di.core.exception.KettlePluginException

getMetadataFields

public void getMetadataFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta,
                              String name,
                              org.pentaho.di.core.variables.VariableSpace space)
                       throws org.pentaho.di.core.exception.KettlePluginException

抛出:

org.pentaho.di.core.exception.KettlePluginException

getFields

public void getFields(org.pentaho.di.core.row.RowMetaInterface inputRowMeta,
                      String name,
                      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:

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

name - 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

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 BaseStepMeta

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 BaseStepMeta

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 BaseStepMeta

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)

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 transMeta,
                             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

transMeta - 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.

isSelectingAndSortingUnspecifiedFields

public boolean isSelectingAndSortingUnspecifiedFields()

返回:

the selectingAndSortingUnspecifiedFields

setSelectingAndSortingUnspecifiedFields

public void setSelectingAndSortingUnspecifiedFields(boolean selectingAndSortingUnspecifiedFields)

参数:

selectingAndSortingUnspecifiedFields - the selectingAndSortingUnspecifiedFields to set

getMeta

public SelectMetadataChange[] getMeta()

返回:

the meta

setMeta

public void setMeta(SelectMetadataChange[] meta)

参数:

meta - the meta to set

supportsErrorHandling

public boolean supportsErrorHandling()

指定者:

supportsErrorHandling 在接口中 StepMetaInterface

覆盖:

supportsErrorHandling 在类中 BaseStepMeta

返回:

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

getSelectFields

public SelectValuesMeta.SelectField[] getSelectFields()

setSelectFields

public void setSelectFields(SelectValuesMeta.SelectField[] selectFields)

getFieldnameLineage

public List<FieldnameLineage> getFieldnameLineage()

We will describe in which way the field names change between input and output in this step.

返回:

The list of field name lineage objects