org.pentaho.di.trans.steps.valuemapper
Class ValueMapperMeta

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

public class ValueMapperMeta
extends BaseStepMeta
implements StepMetaInterface

Maps String values of a certain field to new values Created on 03-apr-2006


Field Summary
 
Fields inherited from class org.pentaho.di.trans.step.BaseStepMeta
loggingObject, STEP_ATTRIBUTES_FILE
 
Constructor Summary
ValueMapperMeta()
           
 
Method Summary
 void allocate(int count)
           
 void check(List<CheckResultInterface> remarks, TransMeta transmeta, StepMeta stepinfo, 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.
 void getFields(RowMetaInterface r, String name, RowMetaInterface[] info, StepMeta nextStep, VariableSpace space)
          Get the fields that are emitted by this step
 String getFieldToUse()
           
 String getNonMatchDefault()
           
 String[] getSourceValue()
           
 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.
 String getTargetField()
           
 String[] getTargetValue()
           
 String getXML()
          Produces the XML string that describes this step's information.
 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 setDefault()
          Set default values
 void setFieldToUse(String fieldToUse)
           
 void setNonMatchDefault(String nonMatchDefault)
           
 void setSourceValue(String[] fieldName)
           
 void setTargetField(String targetField)
           
 void setTargetValue(String[] fieldValue)
           
 
Methods inherited from class org.pentaho.di.trans.step.BaseStepMeta
analyseImpact, cancelQueries, 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, getSupportedTransformationTypes, 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, excludeFromCopyDistributeVerification, excludeFromRowLayoutVerification, exportResources, getDialogClassName, getOptionalStreams, getParentStepMeta, getRequiredFields, getResourceDependencies, getSQLStatements, getStepIOMeta, getStepMetaInjectionInterface, getSupportedTransformationTypes, getTableFields, getUsedArguments, getUsedDatabaseConnections, getUsedLibraries, handleStreamSelection, hasRepositoryReferences, lookupRepositoryReferences, resetStepIoMeta, searchInfoAndTargetSteps, setParentStepMeta, supportsErrorHandling
 

Constructor Detail

ValueMapperMeta

public ValueMapperMeta()
Method Detail

getSourceValue

public String[] getSourceValue()
Returns:
Returns the fieldName.

setSourceValue

public void setSourceValue(String[] fieldName)
Parameters:
fieldName - The fieldName to set.

getTargetValue

public String[] getTargetValue()
Returns:
Returns the fieldValue.

setTargetValue

public void setTargetValue(String[] fieldValue)
Parameters:
fieldValue - The fieldValue 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 count)

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

getFields

public void getFields(RowMetaInterface r,
                      String name,
                      RowMetaInterface[] info,
                      StepMeta nextStep,
                      VariableSpace space)
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:
r - The fields that are entering the step. These are changed to reflect the output metadata.
name - 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

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)

check

public void check(List<CheckResultInterface> remarks,
                  TransMeta transmeta,
                  StepMeta stepinfo,
                  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
stepinfo - 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

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.

getFieldToUse

public String getFieldToUse()
Returns:
Returns the fieldToUse.

setFieldToUse

public void setFieldToUse(String fieldToUse)
Parameters:
fieldToUse - The fieldToUse to set.

getTargetField

public String getTargetField()
Returns:
Returns the targetField.

setTargetField

public void setTargetField(String targetField)
Parameters:
targetField - The targetField to set.

getNonMatchDefault

public String getNonMatchDefault()
Returns:
the non match default. This is the string that will be used to fill in the data when no match is found.

setNonMatchDefault

public void setNonMatchDefault(String nonMatchDefault)
Parameters:
nonMatchDefault - the non match default. This is the string that will be used to fill in the data when no match is found.