edu.udo.cs.miningmart.operator
Class MultipleCSOperator

java.lang.Object
  edu.udo.cs.miningmart.operator.ExecutableOperator
      edu.udo.cs.miningmart.operator.ConceptOperator
          edu.udo.cs.miningmart.operator.MultipleCSOperator

Direct Known Subclasses:

Segmentation, Unsegment

public abstract class MultipleCSOperator
extends ConceptOperator

This abstract class is the superclass for all operators that create more than one ColumnSet for the output concept.

Version:

$Id: MultipleCSOperator.java,v 1.5 2006/09/27 14:59:55 euler Exp $

Author:

Timm Euler

See Also:

edu.udo.cs.miningmart.m4.core.operator.SingleCSOperator, edu.udo.cs.miningmart.m4.core.operator.ConceptOperator, edu.udo.cs.miningmart.m4.core.operator.Segmentation

Field Summary

Fields inherited from class edu.udo.cs.miningmart.operator.ConceptOperator

suffixForIntermediateViews

Fields inherited from class edu.udo.cs.miningmart.operator.ExecutableOperator

generatedSQLDefinitions

Constructor Summary

MultipleCSOperator()

Method Summary

Columnset[]	generateColumnSetsForOp(boolean lazy) Abstract method to be implemented by subclasses.
protected java.lang.String	handleExtraOutputFeature(Feature outputFeature, Columnset csForOuputConcept) The standard handling of extra output features is printing out a warning.
abstract int	numberOfColumnSets() Must return the number of ColumnSets this operator will produce.

Methods inherited from class edu.udo.cs.miningmart.operator.ConceptOperator

compileStatement, createMetadata, createMetadataForOneBA, createSingleColumnSet, createStatement, generateColumns, generateSQLDefinition, getInputConcept, getNewCSName, getOutputConcept, getStringForSelection, getTypeOfNewColumnSet, mustCopyFeature, setNewCSMultiStepBranch

Methods inherited from class edu.udo.cs.miningmart.operator.ExecutableOperator

autoPrint, checkConditions, doPrint, doPrint, execute, executeBusinessSingleValueSqlRead, executeBusinessSingleValueSqlReadL, executeBusinessSqlRead, executeBusinessSqlWrite, executeM4SingleValueSqlRead, executeM4SingleValueSqlReadL, executeM4SqlRead, executeM4SqlWrite, getArtificalColumnName, getBusinessDbms, getHighestLoopNr, getM4Db, getM4Dbms, getM4ObjectFromCache, getName, getNextM4SequenceValue, getNumberOfLoops, getOperator, getOpParamsIterator, getParameter, getParameter, getParameterObjectsOfAllLoops, getSingleParameter, getSingleParameter, getStep, giveWarningForChangedInputData, handleAssertions, isDeselectedParameter, isLoopable, isManual, isStepable, load, print, putM4ObjectToCache, showCreateStatement, storedProceduresAvailable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MultipleCSOperator

public MultipleCSOperator()

Method Detail

numberOfColumnSets

public abstract int numberOfColumnSets()
                                throws M4CompilerError

Must return the number of ColumnSets this operator will produce.

Returns:

the number of Columnsets this operator will produce

Throws:

M4CompilerError

generateColumnSetsForOp

public Columnset[] generateColumnSetsForOp(boolean lazy)
                                    throws M4CompilerError,
                                           M4CompilerWarning

Description copied from class: ConceptOperator

Abstract method to be implemented by subclasses.

Specified by:

generateColumnSetsForOp in class ConceptOperator

Returns:

An array of ColumnSet objects

Throws:

M4CompilerError

M4CompilerWarning

See Also:

edu.udo.cs.miningmart.m4.core.operator.ConceptOperator#generateColumnSetsForOp

handleExtraOutputFeature

protected java.lang.String handleExtraOutputFeature(Feature outputFeature,
                                                    Columnset csForOuputConcept)
                                             throws M4CompilerError

The standard handling of extra output features is printing out a warning. Subclasses may overwrite this method.

Specified by:

handleExtraOutputFeature in class ConceptOperator

Parameters:

outputFeature - Feature to be dealt with

csForOuputConcept - Columnset that was created for the output concept

Returns:

a String with a column definition

Throws:

M4CompilerError