Class DimensionLookupMeta
- java.lang.Object
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- org.pentaho.di.trans.step.BaseStepMeta
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- org.pentaho.di.trans.steps.dimensionlookup.DimensionLookupMeta
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- All Implemented Interfaces:
Cloneable
,ProvidesDatabaseConnectionInformation
,ProvidesModelerMeta
,StepAttributesInterface
,StepMetaInterface
public class DimensionLookupMeta extends BaseStepMeta implements StepMetaInterface, ProvidesModelerMeta
- Since:
- on 14-may-2003 WANTED: Interconnected Dynamic Lookups --> http://www.datawarehouse.com/article/?articleId=5354 The idea is here to create a central 'dimension' cache process, seperated from the other Kettle processes. Kettle then connects over a socket to this daemon-like process to check wether a certain dimension entry is present. Perhaps a more general caching service should be considered.
- Author:
- Matt
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
DimensionLookupMeta.ReturnTypeCodeConverter
static class
DimensionLookupMeta.StartDateCodeConverter
static class
DimensionLookupMeta.UpdateTypeCodeConverter
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Field Summary
Fields Modifier and Type Field Description static String
CREATION_METHOD_AUTOINC
static String
CREATION_METHOD_SEQUENCE
static String
CREATION_METHOD_TABLEMAX
static int
START_DATE_ALTERNATIVE_COLUMN_VALUE
static int
START_DATE_ALTERNATIVE_NONE
static int
START_DATE_ALTERNATIVE_NULL
static int
START_DATE_ALTERNATIVE_START_OF_TRANS
static int
START_DATE_ALTERNATIVE_SYSDATE
static int
TYPE_UPDATE_DATE_INSERTED
static int
TYPE_UPDATE_DATE_INSUP
static int
TYPE_UPDATE_DATE_UPDATED
static int
TYPE_UPDATE_DIM_INSERT
static int
TYPE_UPDATE_DIM_PUNCHTHROUGH
static int
TYPE_UPDATE_DIM_UPDATE
static int
TYPE_UPDATE_LAST_VERSION
static String[]
typeCodes
static String[]
typeDesc
static String[]
typeDescLookup
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Fields inherited from class org.pentaho.di.trans.step.BaseStepMeta
attributes, log, loggingObject, parentStepMeta, repository, STEP_ATTRIBUTES_FILE
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Constructor Summary
Constructors Constructor Description DimensionLookupMeta()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
actualizeWithInjectedValues()
void
afterInjectionSynchronization()
If we use injection we can have different arrays lengths.void
allocate(int nrkeys, int nrfields)
void
analyseImpact(List<DatabaseImpact> impact, TransMeta transMeta, StepMeta stepMeta, 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()
int
getCommitSize()
List<String>
getDatabaseFields()
org.pentaho.di.core.database.DatabaseMeta
getDatabaseMeta()
Returns the database meta for this stepprotected org.pentaho.di.core.row.RowMetaInterface
getDatabaseTableFields(org.pentaho.di.core.database.Database db, String schemaName, String tableName)
String
getDateField()
String
getDateFrom()
String
getDateTo()
String[]
getFieldLookup()
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[]
getFieldStream()
int[]
getFieldUpdate()
String
getKeyField()
String[]
getKeyLookup()
String
getKeyRename()
String[]
getKeyStream()
Date
getMaxDate()
int
getMaxYear()
Date
getMinDate()
int
getMinYear()
String
getMissingDatabaseConnectionInformationMessage()
Provides a way for this object to return a custom message when database connection information is incomplete or missing.int[]
getReturnType()
org.pentaho.di.core.row.RowMeta
getRowMeta(StepDataInterface stepData)
String
getSchemaName()
Returns the schema name for this step.String
getSequenceName()
org.pentaho.di.core.SQLStatement
getSQLStatements(TransMeta transMeta, StepMeta stepMeta, org.pentaho.di.core.row.RowMetaInterface prev, Repository repository, org.pentaho.metastore.api.IMetaStore metaStore)
Standard method to return an SQLStatement object with SQL statements that the step needs in order to work correctly.int
getStartDateAlternative()
static int
getStartDateAlternative(String string)
static String
getStartDateAlternativeCode(int alternative)
static String[]
getStartDateAlternativeCodes()
static String
getStartDateAlternativeDesc(int alternative)
static String[]
getStartDateAlternativeDescriptions()
String
getStartDateFieldName()
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.List<String>
getStreamFields()
org.pentaho.di.core.row.RowMetaInterface
getTableFields()
Gets the table fields.String
getTableName()
Returns the table name for this stepString
getTechKeyCreation()
Get the way how the technical key field should be created.static String
getUpdateType(boolean upd, int t)
static int
getUpdateType(boolean upd, String ty)
static String
getUpdateTypeCode(boolean upd, int t)
org.pentaho.di.core.database.DatabaseMeta[]
getUsedDatabaseConnections()
This method returns all the database connections that are used by the step.String
getVersionField()
String
getXML()
Produces the XML string that describes this step's information.boolean
isAutoIncrement()
boolean
isPreloadingCache()
boolean
isUpdate()
static boolean
isUpdateTypeWithoutArgument(boolean update, int type)
boolean
isUsingStartDateAlternative()
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 Nodevoid
normalizeAllocationFields()
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 repositoryvoid
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 repositoryvoid
setAutoIncrement(boolean autoIncrement)
void
setCacheSize(int cacheSize)
void
setCommitSize(int commitSize)
void
setConnection(String connectionName)
void
setDatabaseMeta(org.pentaho.di.core.database.DatabaseMeta database)
void
setDateField(String dateField)
void
setDateFrom(String dateFrom)
void
setDateTo(String dateTo)
void
setDefault()
Set default valuesvoid
setFieldLookup(String[] fieldLookup)
void
setFieldStream(String[] fieldStream)
void
setFieldUpdate(int[] fieldUpdate)
void
setKeyField(String keyField)
void
setKeyLookup(String[] keyLookup)
void
setKeyRename(String keyRename)
void
setKeyStream(String[] keyStream)
void
setMaxYear(int maxYear)
void
setMinYear(int minYear)
void
setPreloadingCache(boolean preloadingCache)
void
setReturnType(int[] returnType)
void
setSchemaName(String schemaName)
void
setSequenceName(String sequenceName)
void
setStartDateAlternative(int startDateAlternative)
void
setStartDateFieldName(String startDateFieldName)
void
setTableName(String tablename)
void
setTechKeyCreation(String techKeyCreation)
Set the way how the technical key field should be created.void
setUpdate(boolean update)
void
setUseBatchUpdate(boolean useBatchUpdate)
void
setUsingStartDateAlternative(boolean usingStartDateAlternative)
void
setVersionField(String versionField)
boolean
useBatchUpdate()
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Methods inherited from class 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, 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, supportsErrorHandling
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Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface 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, getStepIOMeta, getStepMetaInjectionInterface, getSupportedTransformationTypes, getUsedArguments, getUsedLibraries, handleStreamSelection, hasChanged, hasRepositoryReferences, isReferencedObjectEnabled, loadReferencedObject, loadXML, lookupRepositoryReferences, passDataToServletOutput, readRep, resetStepIoMeta, saveRep, searchInfoAndTargetSteps, setChanged, setParentStepMeta, supportsErrorHandling
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Field Detail
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TYPE_UPDATE_DIM_INSERT
public static final int TYPE_UPDATE_DIM_INSERT
- See Also:
- Constant Field Values
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TYPE_UPDATE_DIM_UPDATE
public static final int TYPE_UPDATE_DIM_UPDATE
- See Also:
- Constant Field Values
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TYPE_UPDATE_DIM_PUNCHTHROUGH
public static final int TYPE_UPDATE_DIM_PUNCHTHROUGH
- See Also:
- Constant Field Values
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TYPE_UPDATE_DATE_INSUP
public static final int TYPE_UPDATE_DATE_INSUP
- See Also:
- Constant Field Values
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TYPE_UPDATE_DATE_INSERTED
public static final int TYPE_UPDATE_DATE_INSERTED
- See Also:
- Constant Field Values
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TYPE_UPDATE_DATE_UPDATED
public static final int TYPE_UPDATE_DATE_UPDATED
- See Also:
- Constant Field Values
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TYPE_UPDATE_LAST_VERSION
public static final int TYPE_UPDATE_LAST_VERSION
- See Also:
- Constant Field Values
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typeDesc
public static final String[] typeDesc
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typeCodes
public static final String[] typeCodes
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typeDescLookup
public static final String[] typeDescLookup
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START_DATE_ALTERNATIVE_NONE
public static final int START_DATE_ALTERNATIVE_NONE
- See Also:
- Constant Field Values
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START_DATE_ALTERNATIVE_SYSDATE
public static final int START_DATE_ALTERNATIVE_SYSDATE
- See Also:
- Constant Field Values
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START_DATE_ALTERNATIVE_START_OF_TRANS
public static final int START_DATE_ALTERNATIVE_START_OF_TRANS
- See Also:
- Constant Field Values
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START_DATE_ALTERNATIVE_NULL
public static final int START_DATE_ALTERNATIVE_NULL
- See Also:
- Constant Field Values
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START_DATE_ALTERNATIVE_COLUMN_VALUE
public static final int START_DATE_ALTERNATIVE_COLUMN_VALUE
- See Also:
- Constant Field Values
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CREATION_METHOD_AUTOINC
public static String CREATION_METHOD_AUTOINC
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CREATION_METHOD_SEQUENCE
public static String CREATION_METHOD_SEQUENCE
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CREATION_METHOD_TABLEMAX
public static String CREATION_METHOD_TABLEMAX
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Method Detail
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getTableName
public String getTableName()
Description copied from interface:ProvidesDatabaseConnectionInformation
Returns the table name for this step- Specified by:
getTableName
in interfaceProvidesDatabaseConnectionInformation
- Returns:
- Returns the tablename.
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setTableName
public void setTableName(String tablename)
- Parameters:
tablename
- The tablename to set.
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getDatabaseMeta
public org.pentaho.di.core.database.DatabaseMeta getDatabaseMeta()
Description copied from interface:ProvidesDatabaseConnectionInformation
Returns the database meta for this step- Specified by:
getDatabaseMeta
in interfaceProvidesDatabaseConnectionInformation
- Returns:
- Returns the database.
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setDatabaseMeta
public void setDatabaseMeta(org.pentaho.di.core.database.DatabaseMeta database)
- Parameters:
database
- The database to set.
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setConnection
public void setConnection(String connectionName)
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isUpdate
public boolean isUpdate()
- Returns:
- Returns the update.
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setUpdate
public void setUpdate(boolean update)
- Parameters:
update
- The update to set.
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isAutoIncrement
public boolean isAutoIncrement()
- Returns:
- Returns the autoIncrement.
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setAutoIncrement
public void setAutoIncrement(boolean autoIncrement)
- Parameters:
autoIncrement
- The autoIncrement to set.
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setTechKeyCreation
public void setTechKeyCreation(String techKeyCreation)
Set the way how the technical key field should be created.- Parameters:
techKeyCreation
- which method to use for the creation of the technical key.
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getTechKeyCreation
public String getTechKeyCreation()
Get the way how the technical key field should be created.- Returns:
- creation way for the technical key.
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getCommitSize
public int getCommitSize()
- Returns:
- Returns the commitSize.
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setCommitSize
public void setCommitSize(int commitSize)
- Parameters:
commitSize
- The commitSize to set.
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getDateField
public String getDateField()
- Returns:
- Returns the dateField.
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setDateField
public void setDateField(String dateField)
- Parameters:
dateField
- The dateField to set.
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getDateFrom
public String getDateFrom()
- Returns:
- Returns the dateFrom.
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setDateFrom
public void setDateFrom(String dateFrom)
- Parameters:
dateFrom
- The dateFrom to set.
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getDateTo
public String getDateTo()
- Returns:
- Returns the dateTo.
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setDateTo
public void setDateTo(String dateTo)
- Parameters:
dateTo
- The dateTo to set.
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getFieldLookup
public String[] getFieldLookup()
- Returns:
- Fields in the dimension to update or retrieve.
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setFieldLookup
public void setFieldLookup(String[] fieldLookup)
- Parameters:
fieldLookup
- sets the fields in the dimension to update or retrieve.
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getFieldStream
public String[] getFieldStream()
- Returns:
- Fields containing the values in the input stream to update the dimension with.
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setFieldStream
public void setFieldStream(String[] fieldStream)
- Parameters:
fieldStream
- The fields containing the values in the input stream to update the dimension with.
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getFieldUpdate
public int[] getFieldUpdate()
- Returns:
- Returns the fieldUpdate.
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setFieldUpdate
public void setFieldUpdate(int[] fieldUpdate)
- Parameters:
fieldUpdate
- The fieldUpdate to set.
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getReturnType
public int[] getReturnType()
- Returns:
- Returns the returnType.
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setReturnType
public void setReturnType(int[] returnType)
- Parameters:
returnType
- The returnType to set.
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getKeyField
public String getKeyField()
- Returns:
- Returns the keyField.
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setKeyField
public void setKeyField(String keyField)
- Parameters:
keyField
- The keyField to set.
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getKeyLookup
public String[] getKeyLookup()
- Returns:
- Returns the keyLookup.
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setKeyLookup
public void setKeyLookup(String[] keyLookup)
- Parameters:
keyLookup
- The keyLookup to set.
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getKeyRename
public String getKeyRename()
- Returns:
- Returns the keyRename.
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setKeyRename
public void setKeyRename(String keyRename)
- Parameters:
keyRename
- The keyRename to set.
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getKeyStream
public String[] getKeyStream()
- Returns:
- Returns the keyStream.
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setKeyStream
public void setKeyStream(String[] keyStream)
- Parameters:
keyStream
- The keyStream to set.
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getMaxYear
public int getMaxYear()
- Returns:
- Returns the maxYear.
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setMaxYear
public void setMaxYear(int maxYear)
- Parameters:
maxYear
- The maxYear to set.
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getMinYear
public int getMinYear()
- Returns:
- Returns the minYear.
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setMinYear
public void setMinYear(int minYear)
- Parameters:
minYear
- The minYear to set.
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getSequenceName
public String getSequenceName()
- Returns:
- Returns the sequenceName.
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setSequenceName
public void setSequenceName(String sequenceName)
- Parameters:
sequenceName
- The sequenceName to set.
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getVersionField
public String getVersionField()
- Returns:
- Returns the versionField.
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setVersionField
public void setVersionField(String versionField)
- Parameters:
versionField
- The versionField to set.
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actualizeWithInjectedValues
public void actualizeWithInjectedValues()
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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
Description copied from interface:StepMetaInterface
Load the values for this step from an XML Node- Specified by:
loadXML
in interfaceStepMetaInterface
- Overrides:
loadXML
in classBaseStepMeta
- Parameters:
stepnode
- the Node to get the info fromdatabases
- The available list of databases to reference tometaStore
- the metastore to optionally load external reference metadata from- Throws:
org.pentaho.di.core.exception.KettleXMLException
- When an unexpected XML error occurred. (malformed etc.)
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allocate
public void allocate(int nrkeys, int nrfields)
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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 interfaceStepMetaInterface
- Overrides:
clone
in classBaseStepMeta
- Returns:
- an exact copy of this step
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getUpdateType
public static final int getUpdateType(boolean upd, String ty)
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getUpdateType
public static final String getUpdateType(boolean upd, int t)
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getUpdateTypeCode
public static final String getUpdateTypeCode(boolean upd, int t)
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getStartDateAlternative
public static final int getStartDateAlternative(String string)
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getStartDateAlternativeCode
public static final String getStartDateAlternativeCode(int alternative)
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getStartDateAlternativeDesc
public static final String getStartDateAlternativeDesc(int alternative)
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getStartDateAlternativeCodes
public static final String[] getStartDateAlternativeCodes()
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getStartDateAlternativeDescriptions
public static final String[] getStartDateAlternativeDescriptions()
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isUpdateTypeWithoutArgument
public static final boolean isUpdateTypeWithoutArgument(boolean update, int type)
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setDefault
public void setDefault()
Description copied from interface:StepMetaInterface
Set default values- Specified by:
setDefault
in interfaceStepMetaInterface
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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
Description copied from class:BaseStepMeta
Gets the fields.- Specified by:
getFields
in interfaceStepMetaInterface
- Overrides:
getFields
in classBaseStepMeta
- Parameters:
row
- the input row meta that is modified in this method to reflect the output row metadata of the stepname
- Name of the step to use as input for the origin field in the valuesinfo
- Fields used as extra lookup informationnextStep
- the next step that is targetedspace
- the space The variable space to use to replace variablesrepository
- the repository to use to load Kettle metadata objects impacting the output fieldsmetaStore
- the MetaStore to use to load additional external data or metadata impacting the output fields- Throws:
org.pentaho.di.core.exception.KettleStepException
- the kettle step exception
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getXML
public String getXML()
Description copied from class:BaseStepMeta
Produces the XML string that describes this step's information.- Specified by:
getXML
in interfaceStepMetaInterface
- Overrides:
getXML
in classBaseStepMeta
- Returns:
- String containing the XML describing this step.
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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
Description copied from interface:StepMetaInterface
Read the steps information from a Kettle repository- Specified by:
readRep
in interfaceStepMetaInterface
- Overrides:
readRep
in classBaseStepMeta
- Parameters:
rep
- The repository to read frommetaStore
- The MetaStore to read external information fromid_step
- The step IDdatabases
- The databases to reference- Throws:
org.pentaho.di.core.exception.KettleException
- When an unexpected error occurred (database, network, etc)
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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
Description copied from interface:StepMetaInterface
Save the steps data into a Kettle repository- Specified by:
saveRep
in interfaceStepMetaInterface
- Overrides:
saveRep
in classBaseStepMeta
- Parameters:
rep
- The Kettle repository to save tometaStore
- the metaStore to optionally write toid_transformation
- The transformation IDid_step
- The step ID- Throws:
org.pentaho.di.core.exception.KettleException
- When an unexpected error occurred (database, network, etc)
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getMinDate
public Date getMinDate()
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getMaxDate
public Date getMaxDate()
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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)
Description copied from interface:StepMetaInterface
Checks the settings of this step and puts the findings in a remarks List.- Specified by:
check
in interfaceStepMetaInterface
- Overrides:
check
in classBaseStepMeta
- Parameters:
remarks
- The list to put the remarks in @see org.pentaho.di.core.CheckResultstepMeta
- The stepMeta to help checkingprev
- The fields coming from the previous stepinput
- The input step namesoutput
- The output step namesinfo
- The fields that are used as information by the stepspace
- the variable space to resolve variable expressions withrepository
- the repository to use to load Kettle metadata objects impacting the output fieldsmetaStore
- the MetaStore to use to load additional external data or metadata impacting the output fields
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getTableFields
public org.pentaho.di.core.row.RowMetaInterface getTableFields()
Description copied from class:BaseStepMeta
Gets the table fields.- Specified by:
getTableFields
in interfaceStepMetaInterface
- Overrides:
getTableFields
in classBaseStepMeta
- Returns:
- the table fields
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getSQLStatements
public org.pentaho.di.core.SQLStatement getSQLStatements(TransMeta transMeta, StepMeta stepMeta, org.pentaho.di.core.row.RowMetaInterface prev, Repository repository, org.pentaho.metastore.api.IMetaStore metaStore)
Description copied from class:BaseStepMeta
Standard method to return an SQLStatement object with SQL statements that the step needs in order to work correctly. This can mean "create table", "create index" statements but also "alter table ... add/drop/modify" statements.- Specified by:
getSQLStatements
in interfaceStepMetaInterface
- Overrides:
getSQLStatements
in classBaseStepMeta
- Parameters:
transMeta
- TransInfo object containing the complete transformationstepMeta
- StepMeta object containing the complete stepprev
- Row containing meta-data for the input fields (no data)repository
- the repository to use to load Kettle metadata objects impacting the output fieldsmetaStore
- the MetaStore to use to load additional external data or metadata impacting the output fields- Returns:
- The SQL Statements for this step. If nothing has to be done, the SQLStatement.getSQL() == null. @see SQLStatement
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analyseImpact
public void analyseImpact(List<DatabaseImpact> impact, TransMeta transMeta, StepMeta stepMeta, 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)
Description copied from class:BaseStepMeta
Each step must be able to report on the impact it has on a database, table field, etc.- Specified by:
analyseImpact
in interfaceStepMetaInterface
- Overrides:
analyseImpact
in classBaseStepMeta
- Parameters:
impact
- The list of impacts @see org.pentaho.di.transMeta.DatabaseImpacttransMeta
- The transformation informationstepMeta
- The step informationprev
- The fields entering this stepinput
- The previous step namesoutput
- The output step namesinfo
- The fields used as information by this steprepository
- the repository to use to load Kettle metadata objects impacting the output fieldsmetaStore
- the MetaStore to use to load additional external data or metadata impacting the output fields
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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 interfaceStepMetaInterface
- Parameters:
stepMeta
- The step infostepDataInterface
- the step data interface linked to this step. Here the step can store temporary data, database connections, etc.cnr
- The copy nr to gettr
- The transformation infotrans
- The launching transformation
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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 interfaceStepMetaInterface
- Returns:
- The appropriate StepDataInterface class.
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getUsedDatabaseConnections
public org.pentaho.di.core.database.DatabaseMeta[] getUsedDatabaseConnections()
Description copied from class:BaseStepMeta
This method returns all the database connections that are used by the step.- Specified by:
getUsedDatabaseConnections
in interfaceStepMetaInterface
- Overrides:
getUsedDatabaseConnections
in classBaseStepMeta
- Returns:
- an array of database connections meta-data. Return an empty array if no connections are used.
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getSchemaName
public String getSchemaName()
Description copied from interface:ProvidesDatabaseConnectionInformation
Returns the schema name for this step.- Specified by:
getSchemaName
in interfaceProvidesDatabaseConnectionInformation
- Returns:
- the schemaName
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getMissingDatabaseConnectionInformationMessage
public String getMissingDatabaseConnectionInformationMessage()
Description copied from interface:ProvidesDatabaseConnectionInformation
Provides a way for this object to return a custom message when database connection information is incomplete or missing. If this returnsnull
a default message will be displayed for missing information.- Specified by:
getMissingDatabaseConnectionInformationMessage
in interfaceProvidesDatabaseConnectionInformation
- Returns:
- A friendly message that describes that database connection information is missing and, potentially, why.
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setSchemaName
public void setSchemaName(String schemaName)
- Parameters:
schemaName
- the schemaName to set
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getCacheSize
public int getCacheSize()
- Returns:
- the cacheSize
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setCacheSize
public void setCacheSize(int cacheSize)
- Parameters:
cacheSize
- the cacheSize to set
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isUsingStartDateAlternative
public boolean isUsingStartDateAlternative()
- Returns:
- the usingStartDateAlternative
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setUsingStartDateAlternative
public void setUsingStartDateAlternative(boolean usingStartDateAlternative)
- Parameters:
usingStartDateAlternative
- the usingStartDateAlternative to set
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getStartDateAlternative
public int getStartDateAlternative()
- Returns:
- the startDateAlternative
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setStartDateAlternative
public void setStartDateAlternative(int startDateAlternative)
- Parameters:
startDateAlternative
- the startDateAlternative to set
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getStartDateFieldName
public String getStartDateFieldName()
- Returns:
- the startDateFieldName
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setStartDateFieldName
public void setStartDateFieldName(String startDateFieldName)
- Parameters:
startDateFieldName
- the startDateFieldName to set
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isPreloadingCache
public boolean isPreloadingCache()
- Returns:
- the preloadingCache
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setPreloadingCache
public void setPreloadingCache(boolean preloadingCache)
- Parameters:
preloadingCache
- the preloadingCache to set
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useBatchUpdate
public boolean useBatchUpdate()
- Returns:
- the useBatchUpdate
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setUseBatchUpdate
public void setUseBatchUpdate(boolean useBatchUpdate)
- Parameters:
useBatchUpdate
- the useBatchUpdate to set
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getDatabaseTableFields
protected org.pentaho.di.core.row.RowMetaInterface getDatabaseTableFields(org.pentaho.di.core.database.Database db, String schemaName, String tableName) throws org.pentaho.di.core.exception.KettleDatabaseException
- Throws:
org.pentaho.di.core.exception.KettleDatabaseException
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getRowMeta
public org.pentaho.di.core.row.RowMeta getRowMeta(StepDataInterface stepData)
- Specified by:
getRowMeta
in interfaceProvidesModelerMeta
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getDatabaseFields
public List<String> getDatabaseFields()
- Specified by:
getDatabaseFields
in interfaceProvidesModelerMeta
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getStreamFields
public List<String> getStreamFields()
- Specified by:
getStreamFields
in interfaceProvidesModelerMeta
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normalizeAllocationFields
public void normalizeAllocationFields()
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afterInjectionSynchronization
public void afterInjectionSynchronization()
If we use injection we can have different arrays lengths. We need synchronize them for consistency behavior with UI
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