DatabaseLookupMeta (PDI Engine 8.3.0.0-0.2.3 API)

java.lang.Object
- org.pentaho.di.trans.step.BaseStepMeta
- - org.pentaho.di.trans.steps.databaselookup.DatabaseLookupMeta

所有已实现的接口:

Cloneable, ProvidesDatabaseConnectionInformation, ProvidesModelerMeta, StepAttributesInterface, StepMetaInterface
```
public class DatabaseLookupMeta
extends BaseStepMeta
implements StepMetaInterface, ProvidesModelerMeta
```

字段概要

字段
限定符和类型	字段和说明
`static int`	`CONDITION_BETWEEN`
`static int`	`CONDITION_EQ`
`static int`	`CONDITION_GE`
`static int`	`CONDITION_GT`
`static int`	`CONDITION_IS_NOT_NULL`
`static int`	`CONDITION_IS_NULL`
`static int`	`CONDITION_LE`
`static int`	`CONDITION_LIKE`
`static int`	`CONDITION_LT`
`static int`	`CONDITION_NE`
`static String[]`	`conditionStrings`

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

DatabaseLookupMeta()

构造器
构造器和说明
`DatabaseLookupMeta()`

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`void`	`allocate(int nrkeys, int nrvalues)`
`void`	`analyseImpact(List<DatabaseImpact> impact, TransMeta transMeta, StepMeta stepinfo, org.pentaho.di.core.row.RowMetaInterface prev, String[] input, String[] output, org.pentaho.di.core.row.RowMetaInterface info, Repository repository, org.pentaho.metastore.api.IMetaStore metaStore)` Each step must be able to report on the impact it has on a database, table field, etc.
`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.
`int`	`getCacheSize()`
`List<String>`	`getDatabaseFields()`
`org.pentaho.di.core.database.DatabaseMeta`	`getDatabaseMeta()` Returns the database meta for this step
`void`	`getFields(org.pentaho.di.core.row.RowMetaInterface row, 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.
`String[]`	`getKeyCondition()`
`String`	`getMissingDatabaseConnectionInformationMessage()` Provides a way for this object to return a custom message when database connection information is incomplete or missing.
`String`	`getOrderByClause()`
`String[]`	`getReturnValueDefault()`
`int[]`	`getReturnValueDefaultType()`
`String[]`	`getReturnValueField()`
`String[]`	`getReturnValueNewName()`
`org.pentaho.di.core.row.RowMeta`	`getRowMeta(StepDataInterface stepData)`
`String`	`getSchemaName()` Returns the schema name for this step.
`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.
`List<String>`	`getStreamFields()`
`String[]`	`getStreamKeyField1()`
`String[]`	`getStreamKeyField2()`
`org.pentaho.di.core.row.RowMetaInterface`	`getTableFields()` Gets the table fields.
`String[]`	`getTableKeyField()`
`String`	`getTablename()`
`String`	`getTableName()` Returns the table name for this step
`org.pentaho.di.core.database.DatabaseMeta[]`	`getUsedDatabaseConnections()` This method returns all the database connections that are used by the step.
`String`	`getXML()` Produces the XML string that describes this step's information.
`boolean`	`isCached()`
`boolean`	`isEatingRowOnLookupFailure()`
`boolean`	`isFailingOnMultipleResults()`
`boolean`	`isLoadingAllDataInCache()`
`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`	`setCached(boolean cached)`
`void`	`setCacheSize(int cacheSize)`
`void`	`setDatabaseMeta(org.pentaho.di.core.database.DatabaseMeta database)`
`void`	`setDefault()` Set default values
`void`	`setEatingRowOnLookupFailure(boolean eatingRowOnLookupFailure)`
`void`	`setFailingOnMultipleResults(boolean failOnMultipleResults)`
`void`	`setKeyCondition(String[] keyCondition)`
`void`	`setLoadingAllDataInCache(boolean loadingAllDataInCache)`
`void`	`setOrderByClause(String orderByClause)`
`void`	`setReturnValueDefault(String[] returnValueDefault)`
`void`	`setReturnValueDefaultType(int[] returnValueDefaultType)`
`void`	`setReturnValueField(String[] returnValueField)`
`void`	`setReturnValueNewName(String[] returnValueNewName)`
`void`	`setSchemaName(String schemaName)`
`void`	`setStreamKeyField1(String[] streamKeyField1)`
`void`	`setStreamKeyField2(String[] streamKeyField2)`
`void`	`setTableKeyField(String[] tableKeyField)`
`void`	`setTablename(String tablename)`
`boolean`	`supportsErrorHandling()`

从类继承的方法 org.pentaho.di.trans.step.BaseStepMeta
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, getTooltip, getUsedArguments, 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, cancelQueries, check, cleanAfterHopFromRemove, cleanAfterHopFromRemove, cleanAfterHopToRemove, excludeFromCopyDistributeVerification, excludeFromRowLayoutVerification, exportResources, exportResources, extractStepMetadataEntries, fetchTransMeta, getActiveReferencedObjectDescription, getDialogClassName, getFields, getOptionalStreams, getParentStepMeta, getReferencedObjectDescriptions, getRequiredFields, getResourceDependencies, getSQLStatements, getSQLStatements, getStepIOMeta, getStepMetaInjectionInterface, getSupportedTransformationTypes, getUsedArguments, getUsedLibraries, handleStreamSelection, hasChanged, hasRepositoryReferences, isReferencedObjectEnabled, loadReferencedObject, loadXML, lookupRepositoryReferences, passDataToServletOutput, readRep, resetStepIoMeta, saveRep, searchInfoAndTargetSteps, setChanged, setParentStepMeta

- 字段详细资料
  - conditionStrings
```
public static final String[] conditionStrings
```
  - CONDITION_EQ
```
public static final int CONDITION_EQ
```
    另请参阅:
    
    常量字段值
  - CONDITION_NE
```
public static final int CONDITION_NE
```
    另请参阅:
    
    常量字段值
  - CONDITION_LT
```
public static final int CONDITION_LT
```
    另请参阅:
    
    常量字段值
  - CONDITION_LE
```
public static final int CONDITION_LE
```
    另请参阅:
    
    常量字段值
  - CONDITION_GT
```
public static final int CONDITION_GT
```
    另请参阅:
    
    常量字段值
  - CONDITION_GE
```
public static final int CONDITION_GE
```
    另请参阅:
    
    常量字段值
  - CONDITION_LIKE
```
public static final int CONDITION_LIKE
```
    另请参阅:
    
    常量字段值
  - CONDITION_BETWEEN
```
public static final int CONDITION_BETWEEN
```
    另请参阅:
    
    常量字段值
  - CONDITION_IS_NULL
```
public static final int CONDITION_IS_NULL
```
    另请参阅:
    
    常量字段值
  - CONDITION_IS_NOT_NULL
```
public static final int CONDITION_IS_NOT_NULL
```
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - DatabaseLookupMeta
```
public DatabaseLookupMeta()
```
- 方法详细资料
  - isCached
```
public boolean isCached()
```
    返回:
    
    Returns the cached.
  - setCached
```
public void setCached(boolean cached)
```
    参数:
    
    cached - The cached to set.
  - getCacheSize
```
public int getCacheSize()
```
    返回:
    
    Returns the cacheSize.
  - setCacheSize
```
public void setCacheSize(int cacheSize)
```
    参数:
    
    cacheSize - The cacheSize to set.
  - getDatabaseMeta
```
public org.pentaho.di.core.database.DatabaseMeta getDatabaseMeta()
```
    从接口复制的说明: ProvidesDatabaseConnectionInformation
    
    Returns the database meta for this step
    
    指定者:
    
    getDatabaseMeta 在接口中 ProvidesDatabaseConnectionInformation
    
    返回:
    
    Returns the database.
  - getTableName
```
public String getTableName()
```
    从接口复制的说明: ProvidesDatabaseConnectionInformation
    
    Returns the table name for this step
    
    指定者:
    
    getTableName 在接口中 ProvidesDatabaseConnectionInformation
    
    返回:
  - setDatabaseMeta
```
public void setDatabaseMeta(org.pentaho.di.core.database.DatabaseMeta database)
```
    参数:
    
    database - The database to set.
  - getKeyCondition
```
public String[] getKeyCondition()
```
    返回:
    
    Returns the keyCondition.
  - setKeyCondition
```
public void setKeyCondition(String[] keyCondition)
```
    参数:
    
    keyCondition - The keyCondition to set.
  - getOrderByClause
```
public String getOrderByClause()
```
    返回:
    
    Returns the orderByClause.
  - setOrderByClause
```
public void setOrderByClause(String orderByClause)
```
    参数:
    
    orderByClause - The orderByClause to set.
  - getReturnValueDefault
```
public String[] getReturnValueDefault()
```
    返回:
    
    Returns the returnValueDefault.
  - setReturnValueDefault
```
public void setReturnValueDefault(String[] returnValueDefault)
```
    参数:
    
    returnValueDefault - The returnValueDefault to set.
  - getReturnValueDefaultType
```
public int[] getReturnValueDefaultType()
```
    返回:
    
    Returns the returnValueDefaultType.
  - setReturnValueDefaultType
```
public void setReturnValueDefaultType(int[] returnValueDefaultType)
```
    参数:
    
    returnValueDefaultType - The returnValueDefaultType to set.
  - getReturnValueField
```
public String[] getReturnValueField()
```
    返回:
    
    Returns the returnValueField.
  - setReturnValueField
```
public void setReturnValueField(String[] returnValueField)
```
    参数:
    
    returnValueField - The returnValueField to set.
  - getReturnValueNewName
```
public String[] getReturnValueNewName()
```
    返回:
    
    Returns the returnValueNewName.
  - setReturnValueNewName
```
public void setReturnValueNewName(String[] returnValueNewName)
```
    参数:
    
    returnValueNewName - The returnValueNewName to set.
  - getStreamKeyField1
```
public String[] getStreamKeyField1()
```
    返回:
    
    Returns the streamKeyField1.
  - setStreamKeyField1
```
public void setStreamKeyField1(String[] streamKeyField1)
```
    参数:
    
    streamKeyField1 - The streamKeyField1 to set.
  - getStreamKeyField2
```
public String[] getStreamKeyField2()
```
    返回:
    
    Returns the streamKeyField2.
  - setStreamKeyField2
```
public void setStreamKeyField2(String[] streamKeyField2)
```
    参数:
    
    streamKeyField2 - The streamKeyField2 to set.
  - getTableKeyField
```
public String[] getTableKeyField()
```
    返回:
    
    Returns the tableKeyField.
  - setTableKeyField
```
public void setTableKeyField(String[] tableKeyField)
```
    参数:
    
    tableKeyField - The tableKeyField to set.
  - getTablename
```
public String getTablename()
```
    返回:
    
    Returns the tablename.
  - setTablename
```
public void setTablename(String tablename)
```
    参数:
    
    tablename - The tablename to set.
  - isFailingOnMultipleResults
```
public boolean isFailingOnMultipleResults()
```
    返回:
    
    Returns the failOnMultipleResults.
  - setFailingOnMultipleResults
```
public void setFailingOnMultipleResults(boolean failOnMultipleResults)
```
    参数:
    
    failOnMultipleResults - The failOnMultipleResults to set.
  - 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 nrkeys,
                     int nrvalues)
```
  - 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
  - getFields
```
public void getFields(org.pentaho.di.core.row.RowMetaInterface row,
                      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:
    
    row - 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
  - getTableFields
```
public org.pentaho.di.core.row.RowMetaInterface getTableFields()
```
    从类复制的说明: BaseStepMeta
    
    Gets the table fields.
    
    指定者:
    
    getTableFields 在接口中 StepMetaInterface
    
    覆盖:
    
    getTableFields 在类中 BaseStepMeta
    
    返回:
    
    the table 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.
  - analyseImpact
```
public void analyseImpact(List<DatabaseImpact> impact,
                          TransMeta transMeta,
                          StepMeta stepinfo,
                          org.pentaho.di.core.row.RowMetaInterface prev,
                          String[] input,
                          String[] output,
                          org.pentaho.di.core.row.RowMetaInterface info,
                          Repository repository,
                          org.pentaho.metastore.api.IMetaStore metaStore)
```
    从类复制的说明: BaseStepMeta
    
    Each step must be able to report on the impact it has on a database, table field, etc.
    
    指定者:
    
    analyseImpact 在接口中 StepMetaInterface
    
    覆盖:
    
    analyseImpact 在类中 BaseStepMeta
    
    参数:
    
    impact - The list of impacts @see org.pentaho.di.transMeta.DatabaseImpact
    
    transMeta - The transformation information
    
    stepinfo - The step information
    
    prev - The fields entering this step
    
    input - The previous step names
    
    output - The output step names
    
    info - The fields used as information by this step
    
    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
  - getUsedDatabaseConnections
```
public org.pentaho.di.core.database.DatabaseMeta[] getUsedDatabaseConnections()
```
    从类复制的说明: BaseStepMeta
    
    This method returns all the database connections that are used by the step.
    
    指定者:
    
    getUsedDatabaseConnections 在接口中 StepMetaInterface
    
    覆盖:
    
    getUsedDatabaseConnections 在类中 BaseStepMeta
    
    返回:
    
    an array of database connections meta-data. Return an empty array if no connections are used.
  - isEatingRowOnLookupFailure
```
public boolean isEatingRowOnLookupFailure()
```
    返回:
    
    Returns the eatingRowOnLookupFailure.
  - setEatingRowOnLookupFailure
```
public void setEatingRowOnLookupFailure(boolean eatingRowOnLookupFailure)
```
    参数:
    
    eatingRowOnLookupFailure - The eatingRowOnLookupFailure to set.
  - getSchemaName
```
public String getSchemaName()
```
    从接口复制的说明: ProvidesDatabaseConnectionInformation
    
    Returns the schema name for this step.
    
    指定者:
    
    getSchemaName 在接口中 ProvidesDatabaseConnectionInformation
    
    返回:
    
    the schemaName
  - getMissingDatabaseConnectionInformationMessage
```
public String getMissingDatabaseConnectionInformationMessage()
```
    从接口复制的说明: ProvidesDatabaseConnectionInformation
    
    Provides a way for this object to return a custom message when database connection information is incomplete or missing. If this returns null a default message will be displayed for missing information.
    
    指定者:
    
    getMissingDatabaseConnectionInformationMessage 在接口中 ProvidesDatabaseConnectionInformation
    
    返回:
    
    A friendly message that describes that database connection information is missing and, potentially, why.
  - setSchemaName
```
public void setSchemaName(String schemaName)
```
    参数:
    
    schemaName - the schemaName 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.
  - isLoadingAllDataInCache
```
public boolean isLoadingAllDataInCache()
```
    返回:
    
    the loadingAllDataInCache
  - setLoadingAllDataInCache
```
public void setLoadingAllDataInCache(boolean loadingAllDataInCache)
```
    参数:
    
    loadingAllDataInCache - the loadingAllDataInCache to set
  - getRowMeta
```
public org.pentaho.di.core.row.RowMeta getRowMeta(StepDataInterface stepData)
```
    指定者:
    
    getRowMeta 在接口中 ProvidesModelerMeta
  - getDatabaseFields
```
public List<String> getDatabaseFields()
```
    指定者:
    
    getDatabaseFields 在接口中 ProvidesModelerMeta
  - getStreamFields
```
public List<String> getStreamFields()
```
    指定者:
    
    getStreamFields 在接口中 ProvidesModelerMeta

类 DatabaseLookupMeta

字段概要

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

构造器概要

方法概要

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

从类继承的方法 java.lang.Object

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

字段详细资料

conditionStrings

CONDITION_EQ

CONDITION_NE

CONDITION_LT

CONDITION_LE

CONDITION_GT

CONDITION_GE

CONDITION_LIKE

CONDITION_BETWEEN

CONDITION_IS_NULL

CONDITION_IS_NOT_NULL

构造器详细资料

DatabaseLookupMeta

方法详细资料

isCached

setCached

getCacheSize

setCacheSize

getDatabaseMeta

getTableName

setDatabaseMeta

getKeyCondition

setKeyCondition

getOrderByClause

setOrderByClause

getReturnValueDefault

setReturnValueDefault

getReturnValueDefaultType

setReturnValueDefaultType

getReturnValueField

setReturnValueField

getReturnValueNewName

setReturnValueNewName

getStreamKeyField1

setStreamKeyField1

getStreamKeyField2

setStreamKeyField2

getTableKeyField

setTableKeyField

getTablename

setTablename

isFailingOnMultipleResults

setFailingOnMultipleResults

loadXML

allocate

clone

setDefault

getFields

getXML

readRep

saveRep

check

getTableFields

getStep

getStepData

analyseImpact

getUsedDatabaseConnections

isEatingRowOnLookupFailure

setEatingRowOnLookupFailure

getSchemaName

getMissingDatabaseConnectionInformationMessage

setSchemaName

supportsErrorHandling

isLoadingAllDataInCache

setLoadingAllDataInCache

getRowMeta

getDatabaseFields

getStreamFields