org.pentaho.di.trans.steps.blockingstep
Class BlockingStepMeta

java.lang.Object
  extended by org.pentaho.di.trans.step.BaseStepMeta
      extended by org.pentaho.di.trans.steps.blockingstep.BlockingStepMeta
All Implemented Interfaces:
Cloneable, StepAttributesInterface, StepMetaInterface

public class BlockingStepMeta
extends BaseStepMeta
implements StepMetaInterface


Field Summary
static int CACHE_SIZE
          Cache size: how many rows do we keep in memory
 
Fields inherited from class org.pentaho.di.trans.step.BaseStepMeta
loggingObject, STEP_ATTRIBUTES_FILE
 
Constructor Summary
BlockingStepMeta()
           
 
Method Summary
 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.
 int getCacheSize()
           
 boolean getCompress()
           
 String getDirectory()
           
 void getFields(RowMetaInterface inputRowMeta, String name, RowMetaInterface[] info, StepMeta nextStep, VariableSpace space)
          Gets the fields.
 String getPrefix()
           
 StepInterface getStep(StepMeta stepMeta, StepDataInterface stepDataInterface, int copyNr, 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.
 TransMeta.TransformationType[] getSupportedTransformationTypes()
           
 String getXML()
          Produces the XML string that describes this step's information.
 boolean isPassAllRows()
           
 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 setCacheSize(int cacheSize)
           
 void setCompress(boolean compressFiles)
           
 void setDefault()
          Set default values
 void setDirectory(String directory)
          Set the directory to store the temp files in.
 void setPassAllRows(boolean passAllRows)
           
 void setPrefix(String prefix)
           
 
Methods inherited from class org.pentaho.di.trans.step.BaseStepMeta
analyseImpact, cancelQueries, clone, excludeFromCopyDistributeVerification, excludeFromRowLayoutVerification, exportResources, findAttribute, findParent, getDescription, getDialogClassName, getLog, getLogChannelId, getName, getObjectCopy, getObjectId, getObjectRevision, getObjectType, getOptionalStreams, getParent, getParentStepMeta, getRepCode, getRepositoryDirectory, getRequiredFields, getRequiredFields, getResourceDependencies, getSQLStatements, getStepInjectionMetadataEntries, getStepIOMeta, getStepMetaInjectionInterface, getTableFields, getTooltip, getUsedArguments, getUsedDatabaseConnections, 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
analyseImpact, cancelQueries, clone, excludeFromCopyDistributeVerification, excludeFromRowLayoutVerification, exportResources, getDialogClassName, getOptionalStreams, getParentStepMeta, getRequiredFields, getResourceDependencies, getSQLStatements, getStepIOMeta, getStepMetaInjectionInterface, getTableFields, getUsedArguments, getUsedDatabaseConnections, getUsedLibraries, handleStreamSelection, hasRepositoryReferences, lookupRepositoryReferences, resetStepIoMeta, searchInfoAndTargetSteps, setParentStepMeta, supportsErrorHandling
 

Field Detail

CACHE_SIZE

public static final int CACHE_SIZE
Cache size: how many rows do we keep in memory

See Also:
Constant Field Values
Constructor Detail

BlockingStepMeta

public BlockingStepMeta()
Method Detail

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

getFields

public void getFields(RowMetaInterface inputRowMeta,
                      String name,
                      RowMetaInterface[] info,
                      StepMeta nextStep,
                      VariableSpace space)
               throws KettleStepException
Description copied from class: BaseStepMeta
Gets the fields.

Specified by:
getFields in interface StepMetaInterface
Overrides:
getFields in class BaseStepMeta
Parameters:
inputRowMeta - the input row meta
name - the name
info - the info
nextStep - the next step
space - the space
Throws:
KettleStepException - the kettle step exception

getStep

public StepInterface getStep(StepMeta stepMeta,
                             StepDataInterface stepDataInterface,
                             int copyNr,
                             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.
copyNr - 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.

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.)

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)

getCacheSize

public int getCacheSize()
Returns:
Returns the cacheSize.

setCacheSize

public void setCacheSize(int cacheSize)
Parameters:
cacheSize - The cacheSize to set.

getPrefix

public String getPrefix()
Returns:
Returns the prefix.

setPrefix

public void setPrefix(String prefix)
Parameters:
prefix - The prefix to set.

getCompress

public boolean getCompress()
Returns:
Returns whether temporary files should be compressed

setCompress

public void setCompress(boolean compressFiles)
Parameters:
compressFiles - Whether to compress temporary files created during sorting

isPassAllRows

public boolean isPassAllRows()
Returns:
true when all rows are passed and false when only the last one is passed.

setPassAllRows

public void setPassAllRows(boolean passAllRows)
Parameters:
passAllRows - set to true if all rows should be passed and false if only the last one should be passed

getDirectory

public String getDirectory()
Returns:
The directory to store the temporary files in.

setDirectory

public void setDirectory(String directory)
Set the directory to store the temp files in.


getSupportedTransformationTypes

public TransMeta.TransformationType[] getSupportedTransformationTypes()
Specified by:
getSupportedTransformationTypes in interface StepMetaInterface
Overrides:
getSupportedTransformationTypes in class BaseStepMeta
Returns:
The supported transformation types that this step supports.