org.pentaho.di.trans.steps.filterrows

类 FilterRowsMeta

java.lang.Object

org.pentaho.di.trans.step.BaseStepMeta

org.pentaho.di.trans.steps.filterrows.FilterRowsMeta

所有已实现的接口:

Cloneable, StepAttributesInterface, StepMetaInterface

public class FilterRowsMeta
extends BaseStepMeta
implements StepMetaInterface

字段概要

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
FilterRowsMeta()

方法概要

限定符和类型	方法和说明
void	allocate()
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	excludeFromCopyDistributeVerification() This method is added to exclude certain steps from copy/distribute checking.
org.pentaho.di.core.Condition	getCondition()
String	getConditionXML()
String	getFalseStepname()
void	getFields(org.pentaho.di.core.row.RowMetaInterface rowMeta, 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.
List<String>	getOrphanFields(org.pentaho.di.core.Condition condition, org.pentaho.di.core.row.RowMetaInterface prev) Get non-existing referenced input fields
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.
String	getTrueStepname()
String	getXML() Produces the XML string that describes this step's information.
void	handleStreamSelection(StreamInterface stream) When an optional stream is selected, this method is called to handled the ETL metadata implications of that.
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	resetStepIoMeta() Reset step io meta.
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	setCondition(org.pentaho.di.core.Condition condition)
void	setConditionXML(String conditionXML)
void	setDefault() Set default values
void	setFalseStepname(String falseStepname)
void	setTrueStepname(String trueStepname)

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

analyseImpact, analyseImpact, cancelQueries, check, check, createEntry, 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, getStepMetaInjectionInterface, getSupportedTransformationTypes, getTableFields, getTooltip, getUsedArguments, getUsedDatabaseConnections, getUsedLibraries, getXmlCode, 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, 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, excludeFromRowLayoutVerification, exportResources, exportResources, extractStepMetadataEntries, fetchTransMeta, getActiveReferencedObjectDescription, getDialogClassName, getFields, getOptionalStreams, getParentStepMeta, getReferencedObjectDescriptions, getRequiredFields, getResourceDependencies, getSQLStatements, getSQLStatements, getStepMetaInjectionInterface, getSupportedTransformationTypes, getTableFields, getUsedArguments, getUsedDatabaseConnections, getUsedLibraries, hasChanged, hasRepositoryReferences, isReferencedObjectEnabled, loadReferencedObject, loadXML, lookupRepositoryReferences, passDataToServletOutput, readRep, saveRep, setChanged, setParentStepMeta, supportsErrorHandling

构造器详细资料

FilterRowsMeta

public FilterRowsMeta()

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 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.)

getCondition

public org.pentaho.di.core.Condition getCondition()

返回:

Returns the condition.

setCondition

public void setCondition(org.pentaho.di.core.Condition condition)

参数:

condition - The condition to set.

allocate

public void allocate()

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()
              throws org.pentaho.di.core.exception.KettleException

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.

抛出:

org.pentaho.di.core.exception.KettleException - in case there is an XML conversion or encoding error

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

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)

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

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)

getFields

public void getFields(org.pentaho.di.core.row.RowMetaInterface rowMeta,
                      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:

rowMeta - 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

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.

getStepIOMeta

public StepIOMetaInterface getStepIOMeta()

Returns the Input/Output metadata for this step.

指定者:

getStepIOMeta 在接口中 StepMetaInterface

覆盖:

getStepIOMeta 在类中 BaseStepMeta

resetStepIoMeta

public void resetStepIoMeta()

从类复制的说明: BaseStepMeta

Reset step io meta.

指定者:

resetStepIoMeta 在接口中 StepMetaInterface

覆盖:

resetStepIoMeta 在类中 BaseStepMeta

handleStreamSelection

public void handleStreamSelection(StreamInterface stream)

When an optional stream is selected, this method is called to handled the ETL metadata implications of that.

指定者:

handleStreamSelection 在接口中 StepMetaInterface

覆盖:

handleStreamSelection 在类中 BaseStepMeta

参数:

stream - The optional stream to handle.

excludeFromCopyDistributeVerification

public boolean excludeFromCopyDistributeVerification()

从类复制的说明: BaseStepMeta

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

指定者:

excludeFromCopyDistributeVerification 在接口中 StepMetaInterface

覆盖:

excludeFromCopyDistributeVerification 在类中 BaseStepMeta

getOrphanFields

public List<String> getOrphanFields(org.pentaho.di.core.Condition condition,
                                    org.pentaho.di.core.row.RowMetaInterface prev)

Get non-existing referenced input fields

参数:

condition -

prev -

返回:

getTrueStepname

public String getTrueStepname()

setTrueStepname

public void setTrueStepname(String trueStepname)

getFalseStepname

public String getFalseStepname()

setFalseStepname

public void setFalseStepname(String falseStepname)

getConditionXML

public String getConditionXML()

setConditionXML

public void setConditionXML(String conditionXML)