org.pentaho.di.trans.steps.luciddbstreamingloader
Class LucidDBStreamingLoaderMeta

java.lang.Object
  org.pentaho.di.trans.step.BaseStepMeta
      org.pentaho.di.trans.steps.luciddbstreamingloader.LucidDBStreamingLoaderMeta

All Implemented Interfaces:

Cloneable, StepAttributesInterface, StepMetaInterface

public class LucidDBStreamingLoaderMeta
extends BaseStepMeta
implements StepMetaInterface

Description: Hold data for LucidDB Streaming loader dialog/UI

Author:

ngoodman

Field Summary

static String	OPERATION_CUSTOM
static String	OPERATION_INSERT
static String	OPERATION_MERGE
static String	OPERATION_UPDATE
static String	REMOTE_ROWS_UDX
static String	SOURCE_TABLE_ALIAS
static String	TARGET_TABLE_ALIAS

Fields inherited from class org.pentaho.di.trans.step.BaseStepMeta

loggingObject, STEP_ATTRIBUTES_FILE

Constructor Summary

LucidDBStreamingLoaderMeta()

Method Summary

void	allocate(int nrKeyMapping, int nrFieldMapping, int nrTabIsEnable)
void	analyseImpact(List<DatabaseImpact> impact, TransMeta transMeta, StepMeta stepMeta, RowMetaInterface prev, String[] input, String[] output, RowMetaInterface info) Each step must be able to report on the impact it has on a database, table field, etc.
void	check(List<CheckResultInterface> remarks, TransMeta transMeta, StepMeta stepMeta, RowMetaInterface prev, String[] input, String[] output, RowMetaInterface info) 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.
String	getCreateTableAsStatement(RowMetaInterface prev)
String	getCustom_sql()
DatabaseMeta	getDatabaseMeta()
String	getDMLStatement(VariableSpace space, RowMetaInterface prev) Create DML Sql Statements for remote_rows
void	getFields(RowMetaInterface rowMeta, String origin, RowMetaInterface[] info, StepMeta nextStep, VariableSpace space) Get the fields that are emitted by this step
String[]	getFieldStreamForFields()
String[]	getFieldStreamForKeys()
String[]	getFieldTableForFields()
String[]	getFieldTableForKeys()
String	getHost()
boolean[]	getInsOrUptFlag()
String	getOperation()
String	getPort()
RowMetaInterface	getRequiredFields(VariableSpace space) The natural way of data flow in a transformation is source-to-target.
String	getSchemaName()
SQLStatement	getSQLStatements(TransMeta transMeta, StepMeta stepMeta, RowMetaInterface prev) Standard method to return one or more SQLStatement objects that the step needs in order to work correctly.
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.
boolean[]	getTabIsEnable()
String	getTableName()
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	isInKeys(String streamFieldName)
void	loadXML(Node stepnode, List<DatabaseMeta> databases, Map<String,Counter> counters) Load the values for this step from an XML Node
void	readRep(Repository rep, ObjectId id_step, List<DatabaseMeta> databases, Map<String,Counter> counters) Read the steps information from a Kettle repository
void	saveRep(Repository rep, ObjectId id_transformation, ObjectId id_step) Save the steps data into a Kettle repository
void	setCustom_sql(String custom_sql)
void	setDatabaseMeta(DatabaseMeta database)
void	setDefault() Set default values
void	setFieldStreamForFields(String[] fieldStreamForFields)
void	setFieldStreamForKeys(String[] fieldStreamForKeys)
void	setFieldTableForFields(String[] fieldTableForFields)
void	setFieldTableForKeys(String[] fieldTableForKeys)
void	setHost(String host)
void	setInsOrUptFlag(boolean[] insOrUptFlag)
void	setOperation(String operation)
void	setPort(String port)
void	setSchemaName(String schemaName)
void	setTabIsEnable(boolean[] tabIsEnable)
void	setTableName(String tableName)

Methods inherited from class org.pentaho.di.trans.step.BaseStepMeta

cancelQueries, excludeFromCopyDistributeVerification, excludeFromRowLayoutVerification, exportResources, findAttribute, findParent, getDescription, getDialogClassName, getLog, getLogChannelId, getName, getObjectCopy, getObjectId, getObjectRevision, getObjectType, getOptionalStreams, getParent, getParentStepMeta, getRepCode, getRepositoryDirectory, getRequiredFields, getResourceDependencies, getStepInjectionMetadataEntries, getStepIOMeta, getStepMetaInjectionInterface, getSupportedTransformationTypes, getTableFields, getTooltip, getUsedArguments, getUsedLibraries, getXmlCode, handleStreamSelection, hasChanged, hasRepositoryReferences, isBasic, isDebug, isDetailed, isRowLevel, logBasic, logBasic, logDebug, logDebug, logDetailed, logDetailed, logError, logError, logError, logMinimal, logMinimal, logRowlevel, logRowlevel, lookupRepositoryReferences, resetStepIoMeta, searchInfoAndTargetSteps, setChanged, setChanged, setParentStepMeta, supportsErrorHandling

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.pentaho.di.trans.step.StepMetaInterface

cancelQueries, excludeFromCopyDistributeVerification, excludeFromRowLayoutVerification, exportResources, getDialogClassName, getOptionalStreams, getParentStepMeta, getResourceDependencies, getStepIOMeta, getStepMetaInjectionInterface, getSupportedTransformationTypes, getTableFields, getUsedArguments, getUsedLibraries, handleStreamSelection, hasRepositoryReferences, lookupRepositoryReferences, resetStepIoMeta, searchInfoAndTargetSteps, setParentStepMeta, supportsErrorHandling

Field Detail

TARGET_TABLE_ALIAS

public static String TARGET_TABLE_ALIAS

SOURCE_TABLE_ALIAS

public static String SOURCE_TABLE_ALIAS

REMOTE_ROWS_UDX

public static String REMOTE_ROWS_UDX

OPERATION_MERGE

public static String OPERATION_MERGE

OPERATION_INSERT

public static String OPERATION_INSERT

OPERATION_UPDATE

public static String OPERATION_UPDATE

OPERATION_CUSTOM

public static String OPERATION_CUSTOM

Constructor Detail

LucidDBStreamingLoaderMeta

public LucidDBStreamingLoaderMeta()

Method Detail

getTabIsEnable

public boolean[] getTabIsEnable()

setTabIsEnable

public void setTabIsEnable(boolean[] tabIsEnable)

getDatabaseMeta

public DatabaseMeta getDatabaseMeta()

Returns:

Returns the database.

setDatabaseMeta

public void setDatabaseMeta(DatabaseMeta database)

Parameters:

database - The database to set.

getTableName

public String getTableName()

Returns:

Returns the tableName.

setTableName

public void setTableName(String tableName)

Parameters:

tableName - The tableName to set.

loadXML

public void loadXML(Node stepnode,
                    List<DatabaseMeta> databases,
                    Map<String,Counter> counters)
             throws KettleXMLException

Description copied from interface: StepMetaInterface

Load the values for this step from an XML Node

Specified by:

loadXML in interface StepMetaInterface

Parameters:

stepnode - the Node to get the info from

databases - The available list of databases to reference to

counters - Counters to reference.

Throws:

KettleXMLException - When an unexpected XML error occurred. (malformed etc.)

allocate

public void allocate(int nrKeyMapping,
                     int nrFieldMapping,
                     int nrTabIsEnable)

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 interface StepMetaInterface

Overrides:

clone in class BaseStepMeta

Returns:

an exact copy of this step

setDefault

public void setDefault()

Description copied from interface: StepMetaInterface

Set default values

Specified by:

setDefault in interface StepMetaInterface

getXML

public String getXML()

Description copied from class: BaseStepMeta

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

Specified by:

getXML in interface StepMetaInterface

Overrides:

getXML in class BaseStepMeta

Returns:

String containing the XML describing this step.

readRep

public void readRep(Repository rep,
                    ObjectId id_step,
                    List<DatabaseMeta> databases,
                    Map<String,Counter> counters)
             throws KettleException

Description copied from interface: StepMetaInterface

Read the steps information from a Kettle repository

Specified by:

readRep in interface StepMetaInterface

Parameters:

rep - The repository to read from

id_step - The step ID

databases - The databases to reference

counters - The counters to reference

Throws:

KettleException - When an unexpected error occurred (database, network, etc)

saveRep

public void saveRep(Repository rep,
                    ObjectId id_transformation,
                    ObjectId id_step)
             throws KettleException

Description copied from interface: StepMetaInterface

Save the steps data into a Kettle repository

Specified by:

saveRep in interface StepMetaInterface

Parameters:

rep - The Kettle repository to save to

id_transformation - The transformation ID

id_step - The step ID

Throws:

KettleException - When an unexpected error occurred (database, network, etc)

getFields

public void getFields(RowMetaInterface rowMeta,
                      String origin,
                      RowMetaInterface[] info,
                      StepMeta nextStep,
                      VariableSpace space)
               throws KettleStepException

Description copied from interface: StepMetaInterface

Get the fields that are emitted by this step

Specified by:

getFields in interface StepMetaInterface

Overrides:

getFields in class BaseStepMeta

Parameters:

rowMeta - The fields that are entering the step. These are changed to reflect the output metadata.

origin - The name of the step to be used as origin

info - The input rows metadata that enters the step through the specified channels in the same order as in method getInfoSteps(). The step metadata can then choose what to do with it: ignore it or not. Interesting is also that in case of database lookups, the layout of the target database table is put in info[0]

nextStep - if this is a non-null value, it's the next step in the transformation. The one who's asking, the step where the data is targetted towards.

space - TODO

Throws:

KettleStepException - when an error occurred searching for the fields.

check

public void check(List<CheckResultInterface> remarks,
                  TransMeta transMeta,
                  StepMeta stepMeta,
                  RowMetaInterface prev,
                  String[] input,
                  String[] output,
                  RowMetaInterface info)

Description copied from interface: StepMetaInterface

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

Specified by:

check in interface StepMetaInterface

Parameters:

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

isInKeys

public boolean isInKeys(String streamFieldName)

getDMLStatement

public String getDMLStatement(VariableSpace space,
                              RowMetaInterface prev)
                       throws KettleStepException

Create DML Sql Statements for remote_rows

Parameters:

prev -

Returns:

Throws:

KettleStepException

getCreateTableAsStatement

public String getCreateTableAsStatement(RowMetaInterface prev)
                                 throws KettleStepException

Throws:

KettleStepException

analyseImpact

public void analyseImpact(List<DatabaseImpact> impact,
                          TransMeta transMeta,
                          StepMeta stepMeta,
                          RowMetaInterface prev,
                          String[] input,
                          String[] output,
                          RowMetaInterface info)
                   throws KettleStepException

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 interface StepMetaInterface

Overrides:

analyseImpact in class BaseStepMeta

Parameters:

impact - The list of impacts @see org.pentaho.di.transMeta.DatabaseImpact

transMeta - The transformation information

stepMeta - 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

Throws:

KettleStepException

getStep

public StepInterface getStep(StepMeta stepMeta,
                             StepDataInterface stepDataInterface,
                             int cnr,
                             TransMeta transMeta,
                             Trans trans)

Description copied from interface: StepMetaInterface

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

Specified by:

getStep in interface StepMetaInterface

Parameters:

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()

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 interface StepMetaInterface

Returns:

The appropriate StepDataInterface class.

getUsedDatabaseConnections

public DatabaseMeta[] getUsedDatabaseConnections()

Description copied from class: BaseStepMeta

This method returns all the database connections that are used by the step.

Specified by:

getUsedDatabaseConnections in interface StepMetaInterface

Overrides:

getUsedDatabaseConnections in class BaseStepMeta

Returns:

an array of database connections meta-data. Return an empty array if no connections are used.

getRequiredFields

public RowMetaInterface getRequiredFields(VariableSpace space)
                                   throws KettleException

Description copied from class: BaseStepMeta

The natural way of data flow in a transformation is source-to-target. However, this makes mapping to target tables difficult to do. To help out here, we supply information to the transformation meta-data model about which fields are required for a step. This allows us to automate certain tasks like the mapping to pre-defined tables. The Table Output step in this case will output the fields in the target table using this method. This default implementation returns an empty row meaning that no fields are required for this step to operate.

Specified by:

getRequiredFields in interface StepMetaInterface

Overrides:

getRequiredFields in class BaseStepMeta

Parameters:

space - the variable space to use to do variable substitution.

Returns:

the required fields for this steps meta data.

Throws:

KettleException - in case the required fields can't be determined

getSchemaName

public String getSchemaName()

Returns:

the schemaName

setSchemaName

public void setSchemaName(String schemaName)

Parameters:

schemaName - the schemaName to set

getInsOrUptFlag

public boolean[] getInsOrUptFlag()

setInsOrUptFlag

public void setInsOrUptFlag(boolean[] insOrUptFlag)

getOperation

public String getOperation()

setOperation

public void setOperation(String operation)

getPort

public String getPort()

setPort

public void setPort(String port)

getFieldStreamForFields

public String[] getFieldStreamForFields()

setFieldStreamForFields

public void setFieldStreamForFields(String[] fieldStreamForFields)

getFieldStreamForKeys

public String[] getFieldStreamForKeys()

setFieldStreamForKeys

public void setFieldStreamForKeys(String[] fieldStreamForKeys)

getFieldTableForFields

public String[] getFieldTableForFields()

setFieldTableForFields

public void setFieldTableForFields(String[] fieldTableForFields)

getFieldTableForKeys

public String[] getFieldTableForKeys()

setFieldTableForKeys

public void setFieldTableForKeys(String[] fieldTableForKeys)

getCustom_sql

public String getCustom_sql()

setCustom_sql

public void setCustom_sql(String custom_sql)

getHost

public String getHost()

setHost

public void setHost(String host)

getSQLStatements

public SQLStatement getSQLStatements(TransMeta transMeta,
                                     StepMeta stepMeta,
                                     RowMetaInterface prev)
                              throws KettleStepException

Description copied from class: BaseStepMeta

Standard method to return one or more SQLStatement objects 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 interface StepMetaInterface

Overrides:

getSQLStatements in class BaseStepMeta

Parameters:

transMeta - TransInfo object containing the complete transformation

stepMeta - StepMeta object containing the complete step

prev - Row containing meta-data for the input fields (no data)

Returns:

The SQL Statements for this step or null if an error occurred. If nothing has to be done, the SQLStatement.getSQL() == null.

Throws:

KettleStepException