edu.udo.cs.miningmart.operator
Class Windowing

java.lang.Object
  edu.udo.cs.miningmart.operator.ExecutableOperator
      edu.udo.cs.miningmart.operator.ConceptOperator
          edu.udo.cs.miningmart.operator.SingleCSOperator
              edu.udo.cs.miningmart.operator.Windowing

public class Windowing
extends SingleCSOperator

Neue Version des Windowing-Operators ohne Stored Procedure. Alte Version in Datei WindowingOld.java.

Version:

$Id: Windowing.java,v 1.6 2006/09/27 14:59:56 euler Exp $

Author:

Timm Euler

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

Windowing()

Method Summary

protected java.lang.String	generateColumns(Columnset csForOutputConcept) This method is overridden because this operator uses a mapping to fill the output BaseAttributes.
java.lang.String	generateSQLDefinition(java.lang.String selectPart) This method must return the SQL definition of the newly created ColumnSet.
java.lang.String	getTypeOfNewColumnSet() This method must return the entry String for the M4 table "Columnset_t", indicating whether the new Columnset is a view or a table.
boolean	mustCopyFeature(java.lang.String nameOfFeature) This method is never called.

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

generateColumnSetsForOp, generateSQLDefinition, getNewCSName, getTypeOfNewColumnSet, handleExtraOutputFeature

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

compileStatement, createMetadata, createMetadataForOneBA, createSingleColumnSet, createStatement, getInputConcept, getNewCSName, getOutputConcept, getStringForSelection, 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

Windowing

public Windowing()

Method Detail

getTypeOfNewColumnSet

public java.lang.String getTypeOfNewColumnSet()

This method must return the entry String for the M4 table "Columnset_t", indicating whether the new Columnset is a view or a table.

Specified by:

getTypeOfNewColumnSet in class SingleCSOperator

Returns:

The type of the new Columnset, either "V" or "T".

See Also:

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

generateSQLDefinition

public java.lang.String generateSQLDefinition(java.lang.String selectPart)
                                       throws M4CompilerError,
                                              M4CompilerWarning

This method must return the SQL definition of the newly created ColumnSet.

Specified by:

generateSQLDefinition in class SingleCSOperator

Parameters:

selectPart - The SQL string between "SELECT" and "FROM" for the SQL definition to be returned.

Returns:

The SQL definition for the new ColumnSet.

Throws:

M4CompilerError

M4CompilerWarning

generateColumns

protected java.lang.String generateColumns(Columnset csForOutputConcept)
                                    throws M4CompilerError

This method is overridden because this operator uses a mapping to fill the output BaseAttributes.

Overrides:

generateColumns in class ConceptOperator

Parameters:

csForOutputConcept - The ColumnSet for which Columns are to be produced.

Returns:

A String for the "SELECT"-part of the view definition for the given ColumnSet.

Throws:

M4CompilerError

See Also:

edu.udo.cs.miningmart.m4.operator.ConceptOperator#generateColumns(Columnset)

mustCopyFeature

public boolean mustCopyFeature(java.lang.String nameOfFeature)

This method is never called.

Specified by:

mustCopyFeature in class ConceptOperator

Parameters:

nameOfFeature - Name of the feature in question.

Returns:

TRUE if this feature should be copied to the output concept, FALSE if not.

See Also:

miningmart.compiler.operator.ConceptOperator#mustCopyFeature(String)