Package org.pentaho.di.trans.steps.joinrows

Class JoinRowsMeta

java.lang.Object
org.pentaho.di.trans.step.BaseStepMeta
org.pentaho.di.trans.steps.joinrows.JoinRowsMeta
All Implemented Interfaces:
Cloneable, StepAttributesInterface, StepMetaInterface
public class JoinRowsMeta extends BaseStepMeta implements StepMetaInterface

  • Constructor Details

    • JoinRowsMeta

      public JoinRowsMeta()

  • Method Details

    • getMainStep

      public StepMeta getMainStep()
      Returns:
      Returns the lookupFromStep.

    • setMainStep

      public void setMainStep(StepMeta lookupFromStep)
      Parameters:
      lookupFromStep - The lookupFromStep to set.

    • getMainStepname

      public String getMainStepname()
      Returns:
      Returns the lookupFromStepname.

    • setMainStepname

      public void setMainStepname(String lookupFromStepname)
      Parameters:
      lookupFromStepname - The lookupFromStepname to set.

    • setCacheSize

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

    • getCacheSize

      public int getCacheSize()
      Returns:
      Returns the cacheSize.

    • getDirectory

      public String getDirectory()
      Returns:
      Returns the directory.

    • setDirectory

      public void setDirectory(String directory)
      Parameters:
      directory - The directory to set.

    • getPrefix

      public String getPrefix()
      Returns:
      Returns the prefix.

    • setPrefix

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

    • getCondition

      public org.pentaho.di.core.Condition getCondition()
      Returns:
      Returns the condition.

    • setCondition

      public void setCondition(org.pentaho.di.core.Condition condition)
      Parameters:
      condition - The condition to set.

    • setCondition

      public void setCondition(String conditionXML) throws Exception
      Throws:
      Exception

    • loadXML

      public void loadXML(Node stepnode, List<org.pentaho.di.core.database.DatabaseMeta> databases, org.pentaho.metastore.api.IMetaStore metaStore) throws org.pentaho.di.core.exception.KettleXMLException
      Description copied from interface: StepMetaInterface
      Load the values for this step from an XML Node
      Specified by:
      loadXML in interface StepMetaInterface
      Overrides:
      loadXML in class BaseStepMeta
      Parameters:
      stepnode - the Node to get the info from
      databases - The available list of databases to reference to
      metaStore - the metastore to optionally load external reference metadata from
      Throws:
      org.pentaho.di.core.exception.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

    • getXML

      public String getXML() throws org.pentaho.di.core.exception.KettleException
      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.
      Throws:
      org.pentaho.di.core.exception.KettleException - in case there is an XML conversion or encoding error

    • readRep

      public void readRep(Repository rep, org.pentaho.metastore.api.IMetaStore metaStore, org.pentaho.di.repository.ObjectId id_step, List<org.pentaho.di.core.database.DatabaseMeta> databases) throws org.pentaho.di.core.exception.KettleException
      Description copied from interface: StepMetaInterface
      Read the steps information from a Kettle repository
      Specified by:
      readRep in interface StepMetaInterface
      Overrides:
      readRep in class BaseStepMeta
      Parameters:
      rep - The repository to read from
      metaStore - The MetaStore to read external information from
      id_step - The step ID
      databases - The databases to reference
      Throws:
      org.pentaho.di.core.exception.KettleException - When an unexpected error occurred (database, network, etc)

    • saveRep

      public void saveRep(Repository rep, org.pentaho.metastore.api.IMetaStore metaStore, org.pentaho.di.repository.ObjectId id_transformation, org.pentaho.di.repository.ObjectId id_step) throws org.pentaho.di.core.exception.KettleException
      Description copied from interface: StepMetaInterface
      Save the steps data into a Kettle repository
      Specified by:
      saveRep in interface StepMetaInterface
      Overrides:
      saveRep in class BaseStepMeta
      Parameters:
      rep - The Kettle repository to save to
      metaStore - the metaStore to optionally write to
      id_transformation - The transformation ID
      id_step - The step ID
      Throws:
      org.pentaho.di.core.exception.KettleException - When an unexpected error occurred (database, network, etc)

    • getFields

      public void getFields(org.pentaho.di.core.row.RowMetaInterface rowMeta, String origin, org.pentaho.di.core.row.RowMetaInterface[] info, StepMeta nextStep, org.pentaho.di.core.variables.VariableSpace space, Repository repository, org.pentaho.metastore.api.IMetaStore metaStore) throws org.pentaho.di.core.exception.KettleStepException
      Description copied from class: BaseStepMeta
      Gets the fields.
      Specified by:
      getFields in interface StepMetaInterface
      Overrides:
      getFields in class BaseStepMeta
      Parameters:
      rowMeta - the input row meta that is modified in this method to reflect the output row metadata of the step
      origin - Name of the step to use as input for the origin field in the values
      info - Fields used as extra lookup information
      nextStep - the next step that is targeted
      space - the space The variable space to use to replace variables
      repository - the repository to use to load Kettle metadata objects impacting the output fields
      metaStore - the MetaStore to use to load additional external data or metadata impacting the output fields
      Throws:
      org.pentaho.di.core.exception.KettleStepException - the kettle step exception

    • check

      public void check(List<org.pentaho.di.core.CheckResultInterface> remarks, TransMeta transMeta, StepMeta stepMeta, org.pentaho.di.core.row.RowMetaInterface prev, String[] input, String[] output, org.pentaho.di.core.row.RowMetaInterface info, org.pentaho.di.core.variables.VariableSpace space, Repository repository, org.pentaho.metastore.api.IMetaStore metaStore)
      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
      Overrides:
      check in class BaseStepMeta
      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
      space - the variable space to resolve variable expressions with
      repository - the repository to use to load Kettle metadata objects impacting the output fields
      metaStore - the MetaStore to use to load additional external data or metadata impacting the output fields

    • getLookupStepname

      public String getLookupStepname()

    • searchInfoAndTargetSteps

      public void searchInfoAndTargetSteps(List<StepMeta> steps)
      Description copied from class: BaseStepMeta
      Change step names into step objects to allow them to be name-changed etc.
      Specified by:
      searchInfoAndTargetSteps in interface StepMetaInterface
      Overrides:
      searchInfoAndTargetSteps in class BaseStepMeta
      Parameters:
      steps - optionally search the info step in a list of steps

    • 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.

    • excludeFromRowLayoutVerification

      public boolean excludeFromRowLayoutVerification()
      Description copied from class: BaseStepMeta
      This method is added to exclude certain steps from layout checking.
      Specified by:
      excludeFromRowLayoutVerification in interface StepMetaInterface
      Overrides:
      excludeFromRowLayoutVerification in class BaseStepMeta

    • cleanAfterHopToRemove

      public boolean cleanAfterHopToRemove(StepMeta fromStep)
      Description copied from interface: StepMetaInterface

      Action remove hop entering this step.

      Sometimes, in addition to the hops themselves, a Step has internal configuration referencing some of the steps that connect to it (to identify the main step or the one to be used for lookup, for instance). If the hop being deleted comes from one of those steps, the references to them should be removed.

      Specified by:
      cleanAfterHopToRemove in interface StepMetaInterface
      Parameters:
      fromStep - the from-step of the hop being removed
      Returns:
      step was changed