edu.udo.cs.miningmart.operator
Class RowSelectionByQuery

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.RowSelection
                  edu.udo.cs.miningmart.operator.RowSelectionByQuery

public final class RowSelectionByQuery

extends RowSelection

Version:

$Id: RowSelectionByQuery.java,v 1.6 2006/04/11 14:10:12 euler Exp $

Author:

Timm Euler

Field Summary

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

generatedSQLDefinitions

Constructor Summary

RowSelectionByQuery()

Method Summary

EstimatedStatistics	estimateStatistics(Step theStep) Abstract method for estimating statistics for a concept.
java.lang.String	generateConditionForOp() Abstract method to be implemented by all subclasses.
java.lang.String	getTheConditionOperator(int loopNr)
BaseAttribute	getTheLeftCondition(int loopNr)
Value	getTheRightCondition(int loopNr)

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

generateSQLDefinition, getTypeOfNewColumnSet, mustCopyFeature

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

generateColumnSetsForOp, generateSQLDefinition, getNewCSName, getTypeOfNewColumnSet

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

compileStatement, createMetadata, createMetadataForOneBA, createSingleColumnSet, createStatement, generateColumns, 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, getSingleParameter, getSingleParameter, getStep, 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

RowSelectionByQuery

public RowSelectionByQuery()

Method Detail

generateConditionForOp

public java.lang.String generateConditionForOp()
                                        throws M4CompilerError

Description copied from class: RowSelection

Abstract method to be implemented by all subclasses. Must return the String for the WHERE part of the SQL definition of the output columnset.

Specified by:

generateConditionForOp in class RowSelection

Returns:

the WHERE condition

Throws:

M4CompilerError

estimateStatistics

public EstimatedStatistics estimateStatistics(Step theStep)
                                       throws M4Exception

Description copied from class: ExecutableOperator

Abstract method for estimating statistics for a concept. The realisation of this method depends on the type of operator that is connected to the step that creates the concept whose statistics are to be estimated. Therefore the implementation is done in this class and its subclasses.

Overrides:

estimateStatistics in class ConceptOperator

Throws:

M4Exception

See Also:

ExecutableOperator.estimateStatistics(Step)

getTheLeftCondition

public BaseAttribute getTheLeftCondition(int loopNr)
                                  throws M4CompilerError

Throws:

M4CompilerError

getTheConditionOperator

public java.lang.String getTheConditionOperator(int loopNr)
                                         throws M4CompilerError

Throws:

M4CompilerError

getTheRightCondition

public Value getTheRightCondition(int loopNr)
                           throws M4CompilerError

Throws:

M4CompilerError