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java.lang.Objectorg.pentaho.di.trans.step.BaseStepMeta
org.pentaho.di.trans.steps.mergerows.MergeRowsMeta
public class MergeRowsMeta
Constructor Summary | |
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MergeRowsMeta()
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Method Summary | |
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void |
allocate(int nrKeys,
int nrValues)
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void |
check(List<org.pentaho.di.core.CheckResultInterface> remarks,
TransMeta transMeta,
StepMeta stepinfo,
org.pentaho.di.core.row.RowMetaInterface prev,
String[] input,
String[] output,
org.pentaho.di.core.row.RowMetaInterface info)
Checks the settings of this step and puts the findings in a remarks List. |
boolean |
chosesTargetSteps()
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Object |
clone()
Make an exact copy of this step, make sure to explicitly copy Collections etc. |
StepMeta |
getCompareStepMeta()
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String |
getCompareStepName()
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void |
getFields(org.pentaho.di.core.row.RowMetaInterface r,
String name,
org.pentaho.di.core.row.RowMetaInterface[] info,
StepMeta nextStep,
org.pentaho.di.core.variables.VariableSpace space)
Get the fields that are emitted by this step |
String |
getFlagField()
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String[] |
getInfoSteps()
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String[] |
getKeyFields()
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StepMeta |
getReferenceStepMeta()
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String |
getReferenceStepName()
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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. |
String[] |
getTargetSteps()
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String[] |
getValueFields()
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String |
getXML()
Produces the XML string that describes this step's information. |
void |
loadXML(Node stepnode,
List<org.pentaho.di.core.database.DatabaseMeta> databases,
Map<String,org.pentaho.di.core.Counter> counters)
Load the values for this step from an XML Node |
void |
readRep(Repository rep,
long id_step,
List<org.pentaho.di.core.database.DatabaseMeta> databases,
Map<String,org.pentaho.di.core.Counter> counters)
Read the steps information from a Kettle repository |
void |
saveRep(Repository rep,
long id_transformation,
long id_step)
Save the steps data into a Kettle repository |
void |
searchInfoAndTargetSteps(List<StepMeta> steps)
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void |
setCompareStepMeta(StepMeta sendFalseStep)
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void |
setCompareStepName(String sendFalseStepname)
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void |
setDefault()
Set default values |
void |
setFlagField(String flagField)
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void |
setInfoSteps(StepMeta[] infoSteps)
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void |
setKeyFields(String[] keyFields)
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void |
setReferenceStepMeta(StepMeta sendTrueStep)
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void |
setReferenceStepName(String sendTrueStepname)
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void |
setValueFields(String[] valueFields)
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Methods inherited from class org.pentaho.di.trans.step.BaseStepMeta |
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analyseImpact, cancelQueries, excludeFromRowLayoutVerification, exportResources, getDialogClassName, getID, getRequiredFields, getRequiredFields, getResourceDependencies, getSQLStatements, getTableFields, getUsedArguments, getUsedDatabaseConnections, getUsedLibraries, hasChanged, setChanged, setChanged, setID, setTargetSteps, supportsErrorHandling |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.pentaho.di.trans.step.StepMetaInterface |
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analyseImpact, cancelQueries, excludeFromRowLayoutVerification, exportResources, getDialogClassName, getRequiredFields, getRequiredFields, getResourceDependencies, getSQLStatements, getTableFields, getUsedArguments, getUsedDatabaseConnections, getUsedLibraries, setTargetSteps, supportsErrorHandling |
Constructor Detail |
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public MergeRowsMeta()
Method Detail |
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public String[] getKeyFields()
public void setKeyFields(String[] keyFields)
keyFields
- The keyFields to set.public String[] getValueFields()
public void setValueFields(String[] valueFields)
valueFields
- The valueFields to set.public void loadXML(Node stepnode, List<org.pentaho.di.core.database.DatabaseMeta> databases, Map<String,org.pentaho.di.core.Counter> counters) throws org.pentaho.di.core.exception.KettleXMLException
StepMetaInterface
loadXML
in interface StepMetaInterface
stepnode
- the Node to get the info fromdatabases
- The available list of databases to reference tocounters
- Counters to reference.
org.pentaho.di.core.exception.KettleXMLException
- When an unexpected XML error occurred. (malformed etc.)public String getCompareStepName()
public String getReferenceStepName()
public void setCompareStepName(String sendFalseStepname)
sendFalseStepname
- The sendFalseStepname to set.public void setReferenceStepName(String sendTrueStepname)
sendTrueStepname
- The sendTrueStepname to set.public StepMeta getCompareStepMeta()
public StepMeta getReferenceStepMeta()
public void setCompareStepMeta(StepMeta sendFalseStep)
sendFalseStep
- The sendFalseStep to set.public void setReferenceStepMeta(StepMeta sendTrueStep)
sendTrueStep
- The sendTrueStep to set.public String getFlagField()
public void setFlagField(String flagField)
flagField
- The flagField to set.public void allocate(int nrKeys, int nrValues)
public Object clone()
StepMetaInterface
clone
in interface StepMetaInterface
clone
in class BaseStepMeta
public String getXML()
BaseStepMeta
getXML
in interface StepMetaInterface
getXML
in class BaseStepMeta
public void setDefault()
StepMetaInterface
setDefault
in interface StepMetaInterface
public String[] getInfoSteps()
getInfoSteps
in interface StepMetaInterface
getInfoSteps
in class BaseStepMeta
public void setInfoSteps(StepMeta[] infoSteps)
setInfoSteps
in interface StepMetaInterface
setInfoSteps
in class BaseStepMeta
infoSteps
- The info-step(s) to setpublic void readRep(Repository rep, long id_step, List<org.pentaho.di.core.database.DatabaseMeta> databases, Map<String,org.pentaho.di.core.Counter> counters) throws org.pentaho.di.core.exception.KettleException
StepMetaInterface
readRep
in interface StepMetaInterface
rep
- The repository to read fromid_step
- The step IDdatabases
- The databases to referencecounters
- The counters to reference
org.pentaho.di.core.exception.KettleException
- When an unexpected error occurred (database, network, etc)public void saveRep(Repository rep, long id_transformation, long id_step) throws org.pentaho.di.core.exception.KettleException
StepMetaInterface
saveRep
in interface StepMetaInterface
rep
- The Kettle repository to save toid_transformation
- The transformation IDid_step
- The step ID
org.pentaho.di.core.exception.KettleException
- When an unexpected error occurred (database, network, etc)public void searchInfoAndTargetSteps(List<StepMeta> steps)
searchInfoAndTargetSteps
in interface StepMetaInterface
searchInfoAndTargetSteps
in class BaseStepMeta
steps
- optionally search the info step in a list of stepspublic boolean chosesTargetSteps()
chosesTargetSteps
in class BaseStepMeta
public String[] getTargetSteps()
getTargetSteps
in interface StepMetaInterface
getTargetSteps
in class BaseStepMeta
public void getFields(org.pentaho.di.core.row.RowMetaInterface r, String name, org.pentaho.di.core.row.RowMetaInterface[] info, StepMeta nextStep, org.pentaho.di.core.variables.VariableSpace space) throws org.pentaho.di.core.exception.KettleStepException
StepMetaInterface
getFields
in interface StepMetaInterface
getFields
in class BaseStepMeta
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 origininfo
- 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
org.pentaho.di.core.exception.KettleStepException
- when an error occurred searching for the fields.public void check(List<org.pentaho.di.core.CheckResultInterface> remarks, TransMeta transMeta, StepMeta stepinfo, org.pentaho.di.core.row.RowMetaInterface prev, String[] input, String[] output, org.pentaho.di.core.row.RowMetaInterface info)
StepMetaInterface
check
in interface StepMetaInterface
remarks
- The list to put the remarks in @see org.pentaho.di.core.CheckResultstepinfo
- 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 steppublic StepInterface getStep(StepMeta stepMeta, StepDataInterface stepDataInterface, int cnr, TransMeta tr, Trans trans)
StepMetaInterface
getStep
in interface StepMetaInterface
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 transformationpublic StepDataInterface getStepData()
StepMetaInterface
getStepData
in interface StepMetaInterface
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