edu.udo.cs.miningmart.operator
Class Mapping

java.lang.Object
  edu.udo.cs.miningmart.operator.ExecutableOperator
      edu.udo.cs.miningmart.operator.FeatureConstruction
          edu.udo.cs.miningmart.operator.Mapping

Direct Known Subclasses:

MappingWithDefaultValue, PartialMapping

public abstract class Mapping

extends FeatureConstruction

The class Mapping is abstract class for the operators of type Mapping

Version:

$Id: Mapping.java,v 1.4 2006/04/11 14:10:11 euler Exp $

Author:

Cezary Chudzian

See Also:

MappingWithDefaultValue, PartialMapping

Constructor Summary

Mapping()

Method Summary

java.lang.String	generateSQL(Column theTargetAttributeColumn) Generates a sql-function to describe a new column.
abstract java.lang.String	getDefault(Column theTargetAttributeColumn) Implemented in subclasses
Value[]	getTheMappings(int loopNr) Gets the theMappings.

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

compileStatement, createStatement, estimateStatistics, execute, generateColumnForOp, getCurrentLoopNumber, getTheInputConcept, getTheOutputAttribute, getTheOutputAttribute, getTheTargetAttribute, getTheTargetAttribute, load, writeResults

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

autoPrint, checkConditions, doPrint, doPrint, 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, print, putM4ObjectToCache, showCreateStatement, storedProceduresAvailable

Methods inherited from class java.lang.Object

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

Constructor Detail

Mapping

public Mapping()

Method Detail

getDefault

public abstract java.lang.String getDefault(Column theTargetAttributeColumn)
                                     throws M4CompilerError

Implemented in subclasses

Returns:

value to map to if mapping is not specified

Throws:

M4CompilerError

generateSQL

public java.lang.String generateSQL(Column theTargetAttributeColumn)
                             throws M4CompilerError

Generates a sql-function to describe a new column. This method generates a sql-function to describe a new column.

Specified by:

generateSQL in class FeatureConstruction

Parameters:

theTargetAttributeColumn - The Column to which this FeatureConstruction Operator is applied. Some subclasses may ignore this parameter.

Returns:

the SQL-function call

Throws:

M4CompilerError - A simple exception object with an error message.

getTheMappings

public Value[] getTheMappings(int loopNr)
                       throws M4CompilerError

Gets the theMappings.

Parameters:

loopNr - the loop number to get the Parameter for

Returns:

Returns a Value[]

Throws:

M4CompilerError