edu.udo.cs.miningmart.storedProcedures
Class EMF

java.lang.Object
  edu.udo.cs.miningmart.storedProcedures.EMF

public class EMF
extends java.lang.Object

Version:

$Id: EMF.java,v 1.5 2006/09/27 15:00:02 euler Exp $

Author:

Martin Scholz

Constructor Summary

EMF(BusinessDbConnectionSource dbc, java.lang.String source, java.lang.String time, java.lang.String column, java.lang.String target, java.lang.String timeOut, java.lang.String valueOut, double headWeight, double tailWeight, int distance)
Constructor

Method Summary

void	calc() Method calc() reads from the column(s) specified in the constructor and writes to the specified target, using windowing
static void	dbEMA(java.lang.Object dbc, java.lang.String inputTable, java.lang.String timeAttrIn, java.lang.String valueAttrIn, java.lang.String outputTable, java.lang.String timeAttrOut, java.lang.String valueAttrOut, double headWeight, double tailWeight, int distance) This function has to be used in the database as a stored procedure for calculating an EMA.
protected double	getHeadWeight()
protected edu.udo.cs.miningmart.storedProcedures.OutputColumnset	getOutputColumnset()
protected double	getTailWeight()
protected Windowing	getWindow()

Methods inherited from class java.lang.Object

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

Constructor Detail

EMF

public EMF(BusinessDbConnectionSource dbc,
           java.lang.String source,
           java.lang.String time,
           java.lang.String column,
           java.lang.String target,
           java.lang.String timeOut,
           java.lang.String valueOut,
           double headWeight,
           double tailWeight,
           int distance)
    throws java.sql.SQLException,
           TimeOperatorException

Constructor

Parameters:

dbc - source of database connection if not used as stored procedure

source - source table

time - time column of source table

column - value column of source table

target - name of the target table to be created

timeOut - name of the output time attribute

valueOut - name of the output value attribute

headWeight - the head weight parameter

tailWeight - the tail weight parameter

distance - step size for windowing

Throws:

java.sql.SQLException

TimeOperatorException

Method Detail

getWindow

protected Windowing getWindow()

getOutputColumnset

protected edu.udo.cs.miningmart.storedProcedures.OutputColumnset getOutputColumnset()

getHeadWeight

protected double getHeadWeight()

getTailWeight

protected double getTailWeight()

calc

public void calc()
          throws TimeOperatorException

Method calc() reads from the column(s) specified in the constructor and writes to the specified target, using windowing.

Throws:

TimeOperatorException

dbEMA

public static void dbEMA(java.lang.Object dbc,
                         java.lang.String inputTable,
                         java.lang.String timeAttrIn,
                         java.lang.String valueAttrIn,
                         java.lang.String outputTable,
                         java.lang.String timeAttrOut,
                         java.lang.String valueAttrOut,
                         double headWeight,
                         double tailWeight,
                         int distance)
                  throws java.sql.SQLException,
                         TimeOperatorException

This function has to be used in the database as a stored procedure for calculating an EMA.

Throws:

java.sql.SQLException

TimeOperatorException