org.pentaho.di.trans.steps.dynamicsqlrow
Class DynamicSQLRowMeta

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

public class DynamicSQLRowMeta
extends BaseStepMeta
implements StepMetaInterface


Field Summary
 boolean queryonlyonchange
           
 
Fields inherited from class org.pentaho.di.trans.step.BaseStepMeta
loggingObject, STEP_ATTRIBUTES_FILE
 
Constructor Summary
DynamicSQLRowMeta()
           
 
Method Summary
 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 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.
 DatabaseMeta getDatabaseMeta()
           
 void getFields(RowMetaInterface row, String name, RowMetaInterface[] info, StepMeta nextStep, VariableSpace space)
          Get the fields that are emitted by this step
 int getRowLimit()
           
 String getSql()
           
 String getSQLFieldName()
           
 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.
 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 isOuterJoin()
           
 boolean isQueryOnlyOnChange()
           
 boolean isVariableReplace()
           
 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 setDatabaseMeta(DatabaseMeta database)
           
 void setDefault()
          Set default values
 void setOuterJoin(boolean outerJoin)
           
 void setQueryOnlyOnChange(boolean queryonlyonchange)
           
 void setRowLimit(int rowLimit)
           
 void setSql(String sql)
           
 void setSQLFieldName(String sqlfieldname)
           
 void setVariableReplace(boolean replacevars)
           
 boolean supportsErrorHandling()
           
 
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, getRequiredFields, getResourceDependencies, getSQLStatements, 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
 
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, getRequiredFields, getResourceDependencies, getSQLStatements, getStepIOMeta, getStepMetaInjectionInterface, getSupportedTransformationTypes, getTableFields, getUsedArguments, getUsedLibraries, handleStreamSelection, hasRepositoryReferences, lookupRepositoryReferences, resetStepIoMeta, searchInfoAndTargetSteps, setParentStepMeta
 

Field Detail

queryonlyonchange

public boolean queryonlyonchange
Constructor Detail

DynamicSQLRowMeta

public DynamicSQLRowMeta()
Method Detail

getDatabaseMeta

public DatabaseMeta getDatabaseMeta()
Returns:
Returns the database.

setDatabaseMeta

public void setDatabaseMeta(DatabaseMeta database)
Parameters:
database - The database to set.

isOuterJoin

public boolean isOuterJoin()
Returns:
Returns the outerJoin.

setOuterJoin

public void setOuterJoin(boolean outerJoin)
Parameters:
outerJoin - The outerJoin to set.

isVariableReplace

public boolean isVariableReplace()
Returns:
Returns the replacevars.

setVariableReplace

public void setVariableReplace(boolean replacevars)
Parameters:
replacevars - The replacevars to set.

isQueryOnlyOnChange

public boolean isQueryOnlyOnChange()
Returns:
Returns the queryonlyonchange.

setQueryOnlyOnChange

public void setQueryOnlyOnChange(boolean queryonlyonchange)
Parameters:
queryonlyonchange - The queryonlyonchange to set.

getRowLimit

public int getRowLimit()
Returns:
Returns the rowLimit.

setRowLimit

public void setRowLimit(int rowLimit)
Parameters:
rowLimit - The rowLimit to set.

getSql

public String getSql()
Returns:
Returns the sql.

setSql

public void setSql(String sql)
Parameters:
sql - The sql to set.

getSQLFieldName

public String getSQLFieldName()
Returns:
Returns the sqlfieldname.

setSQLFieldName

public void setSQLFieldName(String sqlfieldname)
Parameters:
sql - The sqlfieldname 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.)

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 row,
                      String name,
                      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:
row - 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
Throws:
KettleStepException - when an error occurred searching for the fields.

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 tr,
                             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
tr - 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.

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

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.

supportsErrorHandling

public boolean supportsErrorHandling()
Specified by:
supportsErrorHandling in interface StepMetaInterface
Overrides:
supportsErrorHandling in class BaseStepMeta
Returns:
true if this step supports error "reporting" on rows: the ability to send rows to a certain target step.