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net.sf.jasperreports.engine.fill.JRIntegerIncrementerFactory Maven / Gradle / Ivy
/*
* ============================================================================
* GNU Lesser General Public License
* ============================================================================
*
* JasperReports - Free Java report-generating library.
* Copyright (C) 2001-2009 JasperSoft Corporation http://www.jaspersoft.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* JasperSoft Corporation
* 539 Bryant Street, Suite 100
* San Francisco, CA 94107
* http://www.jaspersoft.com
*/
package net.sf.jasperreports.engine.fill;
import net.sf.jasperreports.engine.JRVariable;
/**
* @author Teodor Danciu ([email protected] )
* @version $Id: JRIntegerIncrementerFactory.java 2696 2009-03-24 18:35:01Z teodord $
*/
public class JRIntegerIncrementerFactory extends JRAbstractExtendedIncrementerFactory
{
/**
*
*/
protected static final Integer ZERO = new Integer(0);
/**
*
*/
private static JRIntegerIncrementerFactory mainInstance = new JRIntegerIncrementerFactory();
/**
*
*/
private JRIntegerIncrementerFactory()
{
}
/**
*
*/
public static JRIntegerIncrementerFactory getInstance()
{
return mainInstance;
}
/**
*
*/
public JRExtendedIncrementer getExtendedIncrementer(byte calculation)
{
JRExtendedIncrementer incrementer = null;
switch (calculation)
{
case JRVariable.CALCULATION_COUNT :
{
incrementer = JRIntegerCountIncrementer.getInstance();
break;
}
case JRVariable.CALCULATION_SUM :
{
incrementer = JRIntegerSumIncrementer.getInstance();
break;
}
case JRVariable.CALCULATION_AVERAGE :
{
incrementer = JRIntegerAverageIncrementer.getInstance();
break;
}
case JRVariable.CALCULATION_LOWEST :
case JRVariable.CALCULATION_HIGHEST :
{
incrementer = JRComparableIncrementerFactory.getInstance().getExtendedIncrementer(calculation);
break;
}
case JRVariable.CALCULATION_STANDARD_DEVIATION :
{
incrementer = JRIntegerStandardDeviationIncrementer.getInstance();
break;
}
case JRVariable.CALCULATION_VARIANCE :
{
incrementer = JRIntegerVarianceIncrementer.getInstance();
break;
}
case JRVariable.CALCULATION_DISTINCT_COUNT :
{
incrementer = JRIntegerDistinctCountIncrementer.getInstance();
break;
}
case JRVariable.CALCULATION_SYSTEM :
case JRVariable.CALCULATION_NOTHING :
case JRVariable.CALCULATION_FIRST :
default :
{
incrementer = JRDefaultIncrementerFactory.getInstance().getExtendedIncrementer(calculation);
break;
}
}
return incrementer;
}
}
/**
*
*/
class JRIntegerCountIncrementer extends JRAbstractExtendedIncrementer
{
/**
*
*/
private static JRIntegerCountIncrementer mainInstance = new JRIntegerCountIncrementer();
/**
*
*/
private JRIntegerCountIncrementer()
{
}
/**
*
*/
public static JRIntegerCountIncrementer getInstance()
{
return mainInstance;
}
/**
*
*/
public Object increment(
JRCalculable variable,
Object expressionValue,
AbstractValueProvider valueProvider
)
{
Number value = (Number)variable.getIncrementedValue();
if (value == null || variable.isInitialized())
{
value = JRIntegerIncrementerFactory.ZERO;
}
if (expressionValue == null)
{
return value;
}
return new Integer(value.intValue() + 1);
}
public Object combine(JRCalculable calculable, JRCalculable calculableValue, AbstractValueProvider valueProvider)
{
Number value = (Number)calculable.getIncrementedValue();
Number combineValue = (Number) calculableValue.getValue();
if (value == null || calculable.isInitialized())
{
value = JRIntegerIncrementerFactory.ZERO;
}
if (combineValue == null)
{
return value;
}
return new Integer(value.intValue() + combineValue.intValue());
}
public Object initialValue()
{
return JRIntegerIncrementerFactory.ZERO;
}
}
/**
*
*/
class JRIntegerDistinctCountIncrementer extends JRAbstractExtendedIncrementer
{
/**
*
*/
private static JRIntegerDistinctCountIncrementer mainInstance = new JRIntegerDistinctCountIncrementer();
/**
*
*/
private JRIntegerDistinctCountIncrementer()
{
}
/**
*
*/
public static JRIntegerDistinctCountIncrementer getInstance()
{
return mainInstance;
}
/**
*
*/
public Object increment(
JRCalculable variable,
Object expressionValue,
AbstractValueProvider valueProvider
)
{
DistinctCountHolder holder =
(DistinctCountHolder)valueProvider.getValue(variable.getHelperVariable(JRCalculable.HELPER_COUNT));
if (variable.isInitialized())
{
holder.init();
}
return new Integer((int)holder.getCount());
}
public Object combine(JRCalculable calculable, JRCalculable calculableValue, AbstractValueProvider valueProvider)
{
DistinctCountHolder holder =
(DistinctCountHolder)valueProvider.getValue(calculable.getHelperVariable(JRCalculable.HELPER_COUNT));
return new Integer((int)holder.getCount());
}
public Object initialValue()
{
return JRIntegerIncrementerFactory.ZERO;
}
}
/**
*
*/
class JRIntegerSumIncrementer extends JRAbstractExtendedIncrementer
{
/**
*
*/
private static JRIntegerSumIncrementer mainInstance = new JRIntegerSumIncrementer();
/**
*
*/
private JRIntegerSumIncrementer()
{
}
/**
*
*/
public static JRIntegerSumIncrementer getInstance()
{
return mainInstance;
}
/**
*
*/
public Object increment(
JRCalculable variable,
Object expressionValue,
AbstractValueProvider valueProvider
)
{
Number value = (Number)variable.getIncrementedValue();
Number newValue = (Number)expressionValue;
if (newValue == null)
{
if (variable.isInitialized())
{
return null;
}
return value;
}
if (value == null || variable.isInitialized())
{
value = JRIntegerIncrementerFactory.ZERO;
}
return new Integer(value.intValue() + newValue.intValue());
}
public Object initialValue()
{
return JRIntegerIncrementerFactory.ZERO;
}
}
/**
*
*/
class JRIntegerAverageIncrementer extends JRAbstractExtendedIncrementer
{
/**
*
*/
private static JRIntegerAverageIncrementer mainInstance = new JRIntegerAverageIncrementer();
/**
*
*/
private JRIntegerAverageIncrementer()
{
}
/**
*
*/
public static JRIntegerAverageIncrementer getInstance()
{
return mainInstance;
}
/**
*
*/
public Object increment(
JRCalculable variable,
Object expressionValue,
AbstractValueProvider valueProvider
)
{
if (expressionValue == null)
{
if (variable.isInitialized())
{
return null;
}
return variable.getValue();
}
Number countValue = (Number)valueProvider.getValue(variable.getHelperVariable(JRCalculable.HELPER_COUNT));
Number sumValue = (Number)valueProvider.getValue(variable.getHelperVariable(JRCalculable.HELPER_SUM));
return new Integer(sumValue.intValue() / countValue.intValue());
}
public Object initialValue()
{
return JRIntegerIncrementerFactory.ZERO;
}
}
/**
*
*/
class JRIntegerStandardDeviationIncrementer extends JRAbstractExtendedIncrementer
{
/**
*
*/
private static JRIntegerStandardDeviationIncrementer mainInstance = new JRIntegerStandardDeviationIncrementer();
/**
*
*/
private JRIntegerStandardDeviationIncrementer()
{
}
/**
*
*/
public static JRIntegerStandardDeviationIncrementer getInstance()
{
return mainInstance;
}
/**
*
*/
public Object increment(
JRCalculable variable,
Object expressionValue,
AbstractValueProvider valueProvider
)
{
if (expressionValue == null)
{
if (variable.isInitialized())
{
return null;
}
return variable.getValue();
}
Number varianceValue = (Number)valueProvider.getValue(variable.getHelperVariable(JRCalculable.HELPER_VARIANCE));
return new Integer( (int)Math.sqrt(varianceValue.doubleValue()) );
}
public Object initialValue()
{
return JRIntegerIncrementerFactory.ZERO;
}
}
/**
*
*/
class JRIntegerVarianceIncrementer extends JRAbstractExtendedIncrementer
{
/**
*
*/
private static JRIntegerVarianceIncrementer mainInstance = new JRIntegerVarianceIncrementer();
/**
*
*/
private JRIntegerVarianceIncrementer()
{
}
/**
*
*/
public static JRIntegerVarianceIncrementer getInstance()
{
return mainInstance;
}
/**
*
*/
public Object increment(
JRCalculable variable,
Object expressionValue,
AbstractValueProvider valueProvider
)
{
Number value = (Number)variable.getIncrementedValue();
Number newValue = (Number)expressionValue;
if (newValue == null)
{
if (variable.isInitialized())
{
return null;
}
return value;
}
else if (value == null || variable.isInitialized())
{
return JRIntegerIncrementerFactory.ZERO;
}
else
{
Number countValue = (Number)valueProvider.getValue(variable.getHelperVariable(JRCalculable.HELPER_COUNT));
Number sumValue = (Number)valueProvider.getValue(variable.getHelperVariable(JRCalculable.HELPER_SUM));
return
new Integer(
(countValue.intValue() - 1) * value.intValue() / countValue.intValue() +
( sumValue.intValue() / countValue.intValue() - newValue.intValue() ) *
( sumValue.intValue() / countValue.intValue() - newValue.intValue() ) /
(countValue.intValue() - 1)
);
}
}
public Object combine(JRCalculable calculable, JRCalculable calculableValue, AbstractValueProvider valueProvider)
{
Number value = (Number)calculable.getIncrementedValue();
if (calculableValue.getValue() == null)
{
if (calculable.isInitialized())
{
return null;
}
return value;
}
else if (value == null || calculable.isInitialized())
{
return new Integer(((Number) calculableValue.getIncrementedValue()).intValue());
}
double v1 = value.doubleValue();
double c1 = ((Number) valueProvider.getValue(calculable.getHelperVariable(JRCalculable.HELPER_COUNT))).doubleValue();
double s1 = ((Number) valueProvider.getValue(calculable.getHelperVariable(JRCalculable.HELPER_SUM))).doubleValue();
double v2 = ((Number) calculableValue.getIncrementedValue()).doubleValue();
double c2 = ((Number) valueProvider.getValue(calculableValue.getHelperVariable(JRCalculable.HELPER_COUNT))).doubleValue();
double s2 = ((Number) valueProvider.getValue(calculableValue.getHelperVariable(JRCalculable.HELPER_SUM))).doubleValue();
c1 -= c2;
s1 -= s2;
double c = c1 + c2;
return new Integer(
(int) (
c1 / c * v1 +
c2 / c * v2 +
c2 / c1 * s1 / c * s1 / c +
c1 / c2 * s2 / c * s2 / c -
2 * s1 / c * s2 /c
));
}
public Object initialValue()
{
return JRIntegerIncrementerFactory.ZERO;
}
}