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net.sf.jasperreports.engine.fill.JRFillSubreport Maven / Gradle / Ivy
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 JasperReports. If not, see [email protected] )
* @version $Id: JRFillSubreport.java 3718 2010-04-09 11:13:07Z lucianc $
*/
public class JRFillSubreport extends JRFillElement implements JRSubreport
{
private static final Log log = LogFactory.getLog(JRFillSubreport.class);
private static final JRSingletonCache runnerFactoryCache = new JRSingletonCache(JRSubreportRunnerFactory.class);
/**
*
*/
private Map parameterValues = null;
private JRSubreportParameter[] parameters = null;
private Connection connection = null;
private JRDataSource dataSource = null;
private JasperReport jasperReport = null;
private Map loadedEvaluators = null;
/**
* Values to be copied from the subreport.
*/
private JRFillSubreportReturnValue[] returnValues = null;
/**
*
*/
protected JRBaseFiller subreportFiller = null;
private JRPrintPage printPage = null;
private JRSubreportRunner runner;
/**
* Set of checked reports.
*/
private Set checkedReports;
/**
*
*/
protected JRFillSubreport(
JRBaseFiller filler,
JRSubreport subreport,
JRFillObjectFactory factory
)
{
super(filler, subreport, factory);
parameters = subreport.getParameters();
JRSubreportReturnValue[] subrepReturnValues = subreport.getReturnValues();
if (subrepReturnValues != null)
{
List returnValuesList = new ArrayList(subrepReturnValues.length * 2);
returnValues = new JRFillSubreportReturnValue[subrepReturnValues.length];
for (int i = 0; i < subrepReturnValues.length; i++)
{
addReturnValue(subrepReturnValues[i], returnValuesList, factory);
}
returnValues = new JRFillSubreportReturnValue[returnValuesList.size()];
returnValuesList.toArray(returnValues);
}
loadedEvaluators = new HashMap();
checkedReports = new HashSet();
}
/**
*
*/
public ModeEnum getModeValue()
{
return JRStyleResolver.getMode(this, ModeEnum.TRANSPARENT);
}
/**
*
*/
public boolean isUsingCache()
{
return ((JRSubreport)parent).isUsingCache();
}
/**
* @deprecated Replaced by {@link #setUsingCache(Boolean)}.
*/
public void setUsingCache(boolean isUsingCache)
{
}
public Boolean isRunToBottom()
{
return ((JRSubreport) parent).isRunToBottom();
}
public void setRunToBottom(Boolean runToBottom)
{
throw new UnsupportedOperationException();
}
/**
*
*/
public JRExpression getParametersMapExpression()
{
return ((JRSubreport)parent).getParametersMapExpression();
}
/**
*
*/
public JRSubreportParameter[] getParameters()
{
return parameters;
}
/**
*
*/
public JRExpression getConnectionExpression()
{
return ((JRSubreport)parent).getConnectionExpression();
}
/**
*
*/
public JRExpression getDataSourceExpression()
{
return ((JRSubreport)parent).getDataSourceExpression();
}
/**
*
*/
public JRExpression getExpression()
{
return ((JRSubreport)parent).getExpression();
}
/**
*
*/
protected JRTemplateRectangle getJRTemplateRectangle()
{
return (JRTemplateRectangle) getElementTemplate();
}
protected JRTemplateElement createElementTemplate()
{
return new JRTemplateRectangle(getElementOrigin(),
filler.getJasperPrint().getDefaultStyleProvider(), this);
}
/**
*
*/
protected Collection getPrintElements()
{
Collection printElements = null;
if (printPage != null)
{
printElements = printPage.getElements();
}
return printElements;
}
/**
*
*/
protected void evaluate(
byte evaluation
) throws JRException
{
reset();
evaluatePrintWhenExpression(evaluation);
evaluateProperties(evaluation);
if (isPrintWhenExpressionNull() || isPrintWhenTrue())
{
evaluateSubreport(evaluation);
}
}
protected JasperReport evaluateReport(byte evaluation) throws JRException
{
JasperReport report = null;
JRExpression expression = getExpression();
Object source = evaluateExpression(expression, evaluation);
if (source != null) // FIXME put some default broken image like in browsers
{
if (isUsingCache() && filler.fillContext.hasLoadedSubreport(source))
{
report = filler.fillContext.getLoadedSubreport(source);
}
else
{
Class expressionClass = expression.getValueClass();
if (expressionClass.equals(net.sf.jasperreports.engine.JasperReport.class))
{
report = (JasperReport)source;
}
else if (expressionClass.equals(java.io.InputStream.class))
{
report = (JasperReport)JRLoader.loadObject((InputStream)source);
}
else if (expressionClass.equals(java.net.URL.class))
{
report = (JasperReport)JRLoader.loadObject((URL)source);
}
else if (expressionClass.equals(java.io.File.class))
{
report = (JasperReport)JRLoader.loadObject((File)source);
}
else if (expressionClass.equals(java.lang.String.class))
{
report =
(JasperReport)JRLoader.loadObjectFromLocation(
(String)source,
filler.reportClassLoader,
filler.urlHandlerFactory,
filler.fileResolver
);
}
if (isUsingCache())
{
filler.fillContext.registerLoadedSubreport(source, report);
}
}
}
return report;
}
/**
*
*/
protected void evaluateSubreport(
byte evaluation
) throws JRException
{
jasperReport = evaluateReport(evaluation);
if (jasperReport != null)
{
/* */
connection = (Connection) evaluateExpression(
getConnectionExpression(), evaluation);
/* */
dataSource = (JRDataSource) evaluateExpression(
getDataSourceExpression(), evaluation);
parameterValues =
evaluateParameterValues(evaluation);
if (subreportFiller != null)
{
filler.unregisterSubfiller(subreportFiller);
}
/* */
DatasetExpressionEvaluator evaluator = loadReportEvaluator();
initSubreportFiller(evaluator);
validateReport();
saveReturnVariables();
}
}
protected Map evaluateParameterValues(byte evaluation) throws JRException
{
return getParameterValues(
filler,
getParametersMapExpression(),
getParameters(),
evaluation,
false,
jasperReport.getResourceBundle() != null,//hasResourceBundle
jasperReport.getFormatFactoryClass() != null//hasFormatFactory
);
}
protected DatasetExpressionEvaluator loadReportEvaluator() throws JRException
{
DatasetExpressionEvaluator evaluator = null;
if (isUsingCache())
{
evaluator = (JREvaluator) loadedEvaluators.get(jasperReport);
}
if (evaluator == null)
{
evaluator = createEvaluator();
if (isUsingCache())
{
loadedEvaluators.put(jasperReport, evaluator);
}
}
return evaluator;
}
protected DatasetExpressionEvaluator createEvaluator() throws JRException
{
return JasperCompileManager.loadEvaluator(jasperReport);
}
protected void initSubreportFiller(DatasetExpressionEvaluator evaluator) throws JRException
{
if (log.isDebugEnabled())
{
log.debug("Fill " + filler.fillerId + ": creating subreport filler");
}
switch (jasperReport.getPrintOrderValue())
{
case HORIZONTAL :
{
subreportFiller = new JRHorizontalFiller(jasperReport, evaluator, this);
break;
}
case VERTICAL :
{
subreportFiller = new JRVerticalFiller(jasperReport, evaluator, this);
break;
}
default :
{
throw new JRRuntimeException("Unkown print order " + jasperReport.getPrintOrderValue().getValue() + ".");
}
}
runner = getRunnerFactory().createSubreportRunner(this, subreportFiller);
subreportFiller.setSubreportRunner(runner);
}
protected void saveReturnVariables()
{
if (returnValues != null)
{
for (int i = 0; i < returnValues.length; i++)
{
String varName = returnValues[i].getToVariable();
band.saveVariable(varName);
}
}
}
/**
* Utility method used for constructing a parameter values map for subreports, sub datasets and crosstabs.
*
* @param filler report filler
* @param parametersMapExpression expression that yields bulk parameter values map
* @param subreportParameters list of individual parameter values
* @param evaluation evaluation type
* @param ignoreNullExpressions whether to ignore individual parameter value expressions
* @param removeResourceBundle whether to remove the {@link JRParameter#REPORT_RESOURCE_BUNDLE REPORT_RESOURCE_BUNDLE}
* value from the bulk values map
* @return the parameter values map
* @throws JRException
*/
public static Map getParameterValues(
JRBaseFiller filler,
JRExpression parametersMapExpression,
JRDatasetParameter[] subreportParameters,
byte evaluation,
boolean ignoreNullExpressions,
boolean removeResourceBundle,
boolean removeFormatFactory
) throws JRException
{
return getParameterValues(filler, filler.getExpressionEvaluator(),
parametersMapExpression, subreportParameters, evaluation,
ignoreNullExpressions, removeResourceBundle, removeFormatFactory);
}
/**
* Utility method used for constructing a parameter values map for subreports, sub datasets and crosstabs.
*
* @param filler report filler
* @param expressionEvaluator expression evaluator
* @param parametersMapExpression expression that yields bulk parameter values map
* @param subreportParameters list of individual parameter values
* @param evaluation evaluation type
* @param ignoreNullExpressions whether to ignore individual parameter value expressions
* @param removeResourceBundle whether to remove the {@link JRParameter#REPORT_RESOURCE_BUNDLE REPORT_RESOURCE_BUNDLE}
* value from the bulk values map
* @return the parameter values map
* @throws JRException
*/
public static Map getParameterValues(
//TODO using the filler or current dataset?
JRBaseFiller filler,
JRFillExpressionEvaluator expressionEvaluator,
JRExpression parametersMapExpression,
JRDatasetParameter[] subreportParameters,
byte evaluation,
boolean ignoreNullExpressions,
boolean removeResourceBundle,
boolean removeFormatFactory
) throws JRException
{
Map parameterValues = null;
if (parametersMapExpression != null)
{
parameterValues = (Map) expressionEvaluator.evaluate(parametersMapExpression, evaluation);
}
if (parameterValues != null)
{
//if the expression evaluates to the master parameters map
if (parameterValues == filler.getParameterValuesMap())
{
//create a clone of the map so that the master map is not altered
parameterValues = new HashMap(parameterValues);
}
//parameterValues.remove(JRParameter.REPORT_LOCALE);
if (removeResourceBundle)
{
parameterValues.remove(JRParameter.REPORT_RESOURCE_BUNDLE);
}
if (removeFormatFactory)
{
parameterValues.remove(JRParameter.REPORT_FORMAT_FACTORY);
}
//parameterValues.remove(JRParameter.REPORT_TIME_ZONE);
parameterValues.remove(JRParameter.JASPER_REPORT);
parameterValues.remove(JRParameter.REPORT_CONNECTION);
parameterValues.remove(JRParameter.REPORT_MAX_COUNT);
parameterValues.remove(JRParameter.REPORT_DATA_SOURCE);
parameterValues.remove(JRParameter.REPORT_SCRIPTLET);
// should we give access to scriplet extensions so that they can remove their parameters here?
// yes, but then you should also give them access to create built-in parameters... too much trouble.
JRScriptlet[] scriptlets = filler.getJasperReport().getScriptlets();
if (scriptlets != null)
{
for(int i = 0; i < scriptlets.length; i++)
{
parameterValues.remove(scriptlets[i].getName()
+ JRScriptlet.SCRIPTLET_PARAMETER_NAME_SUFFIX);
}
}
parameterValues.remove(JRParameter.REPORT_VIRTUALIZER);
//parameterValues.remove(JRParameter.REPORT_CLASS_LOADER);
parameterValues.remove(JRParameter.IS_IGNORE_PAGINATION);
parameterValues.remove(JRParameter.REPORT_PARAMETERS_MAP);
}
if (parameterValues == null)
{
parameterValues = new HashMap();
}
/* */
if (subreportParameters != null && subreportParameters.length > 0)
{
Object parameterValue = null;
for(int i = 0; i < subreportParameters.length; i++)
{
JRExpression expression = subreportParameters[i].getExpression();
if (expression != null || !ignoreNullExpressions)
{
parameterValue = expressionEvaluator.evaluate(expression, evaluation);
if (parameterValue == null)
{
parameterValues.remove(subreportParameters[i].getName());
}
else
{
parameterValues.put(subreportParameters[i].getName(), parameterValue);
}
}
}
}
if (!parameterValues.containsKey(JRParameter.REPORT_LOCALE))
{
parameterValues.put(JRParameter.REPORT_LOCALE, filler.getLocale());
}
if (!parameterValues.containsKey(JRParameter.REPORT_TIME_ZONE))
{
parameterValues.put(JRParameter.REPORT_TIME_ZONE, filler.getTimeZone());
}
if (
!parameterValues.containsKey(JRParameter.REPORT_FORMAT_FACTORY)
&& !removeFormatFactory
)
{
parameterValues.put(JRParameter.REPORT_FORMAT_FACTORY, filler.getFormatFactory());
}
if (!parameterValues.containsKey(JRParameter.REPORT_CLASS_LOADER) &&
filler.reportClassLoader != null)
{
parameterValues.put(JRParameter.REPORT_CLASS_LOADER, filler.reportClassLoader);
}
if (!parameterValues.containsKey(JRParameter.REPORT_URL_HANDLER_FACTORY) &&
filler.urlHandlerFactory != null)
{
parameterValues.put(JRParameter.REPORT_URL_HANDLER_FACTORY, filler.urlHandlerFactory);
}
if (!parameterValues.containsKey(JRParameter.REPORT_FILE_RESOLVER) &&
filler.fileResolver != null)
{
parameterValues.put(JRParameter.REPORT_FILE_RESOLVER, filler.fileResolver);
}
return parameterValues;
}
protected void fillSubreport() throws JRException
{
if (getConnectionExpression() != null)
{
subreportFiller.fill(parameterValues, connection);
}
else if (getDataSourceExpression() != null)
{
subreportFiller.fill(parameterValues, dataSource);
}
else
{
subreportFiller.fill(parameterValues);
}
}
/**
*
*/
protected boolean prepare(
int availableHeight,
boolean isOverflow
) throws JRException
{
boolean willOverflow = false;
super.prepare(availableHeight, isOverflow);
if (subreportFiller == null)
{
setToPrint(false);
}
if (!isToPrint())
{
return willOverflow;
}
if (availableHeight < getRelativeY() + getHeight())
{
setToPrint(false);
return true;//willOverflow;
}
//willOverflow = prepareTextField((JRFillTextField)fillElement, availableStretchHeight);
//subreportFiller.setPageHeight(getHeight() + availableStretchHeight);
boolean filling = runner.isFilling();
boolean toPrint = !isOverflow || isPrintWhenDetailOverflows() || !isAlreadyPrinted();
boolean reprinted = isOverflow && isPrintWhenDetailOverflows();
if (!filling && toPrint && reprinted)
{
rewind();
}
subreportFiller.setPageHeight(availableHeight - getRelativeY());
synchronized (subreportFiller)
{
JRSubreportRunResult result;
if (filling)
{
if (log.isDebugEnabled())
{
log.debug("Fill " + filler.fillerId + ": resuming " + subreportFiller.fillerId);
}
result = runner.resume();
}
else if (toPrint)
{
setReprinted(reprinted);
if (log.isDebugEnabled())
{
log.debug("Fill " + filler.fillerId + ": starting " + subreportFiller.fillerId);
}
result = runner.start();
}
else
{
printPage = null;
setStretchHeight(getHeight());
setToPrint(false);
return willOverflow;
}
if (result.getException() != null)
{
Throwable error = result.getException();
if (log.isErrorEnabled())
{
log.error("Fill " + filler.fillerId + ": exception", error);
}
if (error instanceof RuntimeException)
{
throw (RuntimeException) error;
}
throw new JRRuntimeException(error);
}
if (result.hasFinished())
{
if (log.isDebugEnabled())
{
log.debug("Fill " + filler.fillerId + ": subreport " + subreportFiller.fillerId + " finished");
}
copyValues();
}
else
{
if (log.isDebugEnabled())
{
log.debug("Fill " + filler.fillerId + ": subreport " + subreportFiller.fillerId + " to continue");
}
}
printPage = subreportFiller.getCurrentPage();
setStretchHeight(result.hasFinished() ? subreportFiller.getCurrentPageStretchHeight() : availableHeight - getRelativeY());
//if the subreport fill thread has not finished,
// it means that the subreport will overflow on the next page
willOverflow = !result.hasFinished();
if (!willOverflow)
{
//the subreport fill thread has finished and the next time we shall create a new one
runner.reset();
}
}// synchronized
Collection printElements = getPrintElements();
if (
(printElements == null || printElements.size() == 0) &&
isRemoveLineWhenBlank() //FIXME if the line won't be removed, the background does not appear
)
{
setToPrint(false);
}
return willOverflow;
}
/**
*
*/
public void rewind() throws JRException
{
if (subreportFiller == null)
{
return;
}
cancelSubreportFill();
initSubreportFiller(null);//FIXME used cached evaluator
if (getConnectionExpression() == null && dataSource != null)
{
if(dataSource instanceof JRRewindableDataSource)
{
((JRRewindableDataSource) dataSource).moveFirst();
}
else
{
// if (log.isWarnEnabled())
// log.warn("The subreport is placed on a non-splitting band, but it does not have a rewindable data source.");
throw new JRException("The subreport is placed on a non-splitting band, but it does not have a rewindable data source.");
}
}
}
protected void cancelSubreportFill() throws JRException
{
if (log.isDebugEnabled())
{
log.debug("Fill " + filler.fillerId + ": cancelling " + subreportFiller.fillerId);
}
// marking the subreport filler for interruption
subreportFiller.setInterrupted(true);
synchronized (subreportFiller)
{
// forcing the creation of a new thread and a new subreport filler
runner.cancel();
runner.reset();
}
filler.unregisterSubfiller(subreportFiller);
}
/**
*
*/
protected JRPrintElement fill()
{
JRPrintRectangle printRectangle = new JRTemplatePrintRectangle(getJRTemplateRectangle());
printRectangle.setX(getX());
printRectangle.setY(getRelativeY());
printRectangle.setWidth(getWidth());
printRectangle.setHeight(getStretchHeight());
return printRectangle;
}
/**
*
*/
public void collectExpressions(JRExpressionCollector collector)
{
collector.collect(this);
}
/**
*
*/
public void visit(JRVisitor visitor)
{
visitor.visitSubreport(this);
}
private JRFillSubreportReturnValue addReturnValue (JRSubreportReturnValue parentReturnValue, List returnValueList, JRFillObjectFactory factory)
{
JRFillSubreportReturnValue returnValue = factory.getSubreportReturnValue(parentReturnValue);
CalculationEnum calculation = returnValue.getCalculationValue();
switch (calculation)
{
case AVERAGE:
case VARIANCE:
{
JRSubreportReturnValue countVal = createHelperReturnValue(parentReturnValue, "_COUNT", CalculationEnum.COUNT);
addReturnValue(countVal, returnValueList, factory);
JRSubreportReturnValue sumVal = createHelperReturnValue(parentReturnValue, "_SUM", CalculationEnum.SUM);
addReturnValue(sumVal, returnValueList, factory);
filler.addVariableCalculationReq(returnValue.getToVariable(), calculation);
break;
}
case STANDARD_DEVIATION:
{
JRSubreportReturnValue varianceVal = createHelperReturnValue(parentReturnValue, "_VARIANCE", CalculationEnum.VARIANCE);
addReturnValue(varianceVal, returnValueList, factory);
filler.addVariableCalculationReq(returnValue.getToVariable(), calculation);
break;
}
case DISTINCT_COUNT:
{
JRSubreportReturnValue countVal = createDistinctCountHelperReturnValue(parentReturnValue);
addReturnValue(countVal, returnValueList, factory);
filler.addVariableCalculationReq(returnValue.getToVariable(), calculation);
break;
}
}
returnValueList.add(returnValue);
return returnValue;
}
protected JRSubreportReturnValue createHelperReturnValue(JRSubreportReturnValue returnValue, String nameSuffix, CalculationEnum calculation)
{
JRDesignSubreportReturnValue helper = new JRDesignSubreportReturnValue();
helper.setToVariable(returnValue.getToVariable() + nameSuffix);
helper.setSubreportVariable(returnValue.getSubreportVariable());
helper.setCalculation(calculation);
helper.setIncrementerFactoryClassName(helper.getIncrementerFactoryClassName());//FIXME shouldn't it be returnValue?
return helper;
}
protected JRSubreportReturnValue createDistinctCountHelperReturnValue(JRSubreportReturnValue returnValue)
{
JRDesignSubreportReturnValue helper = new JRDesignSubreportReturnValue();
helper.setToVariable(returnValue.getToVariable() + "_DISTINCT_COUNT");
helper.setSubreportVariable(returnValue.getSubreportVariable());
helper.setCalculation(CalculationEnum.NOTHING);
helper.setIncrementerFactoryClassName(helper.getIncrementerFactoryClassName());//FIXME shouldn't it be returnValue? tests required
return helper;
}
public JRSubreportReturnValue[] getReturnValues()
{
return this.returnValues;
}
public boolean usesForReturnValue(String variableName)
{
boolean used = false;
if (returnValues != null)
{
for (int j = 0; j < returnValues.length; j++)
{
JRSubreportReturnValue returnValue = returnValues[j];
if (returnValue.getToVariable().equals(variableName))
{
used = true;
break;
}
}
}
return used;
}
/**
* Copies the values from the subreport to the variables of the master report.
*/
protected void copyValues()
{
if (returnValues != null && returnValues.length > 0)
{
for (int i = 0; i < returnValues.length; i++)
{
copyValue(returnValues[i]);
}
}
}
protected void copyValue(JRFillSubreportReturnValue returnValue)
{
try
{
JRFillVariable variable = filler.getVariable(returnValue.getToVariable());
Object value = subreportFiller.getVariableValue(returnValue.getSubreportVariable());
Object newValue = returnValue.getIncrementer().increment(variable, value, AbstractValueProvider.getCurrentValueProvider());
variable.setOldValue(newValue);
variable.setValue(newValue);
variable.setIncrementedValue(newValue);
}
catch (JRException e)
{
throw new JRRuntimeException(e);
}
}
protected void validateReport() throws JRException
{
if (!checkedReports.contains(jasperReport))
{
verifyBandHeights();
checkReturnValues();
if (isUsingCache())
{
checkedReports.add(jasperReport);
}
}
}
protected void verifyBandHeights() throws JRException
{
if (!filler.fillContext.isIgnorePagination())
{
int pageHeight;
int topMargin = jasperReport.getTopMargin();
int bottomMargin = jasperReport.getBottomMargin();
JRBaseFiller parentFiller = filler;
do
{
// set every time, so at the end it will be the master page height
pageHeight = parentFiller.jasperReport.getPageHeight();
// sum parent page margins
topMargin += parentFiller.jasperReport.getTopMargin();
bottomMargin += parentFiller.jasperReport.getBottomMargin();
parentFiller = parentFiller.parentFiller;
}
while (parentFiller != null);
List brokenRules = new ArrayList();
JRVerifier.verifyBandHeights(brokenRules,
jasperReport, pageHeight, topMargin, bottomMargin);
if (!brokenRules.isEmpty())
{
throw new JRValidationException("Band height validation for subreport \""
+ jasperReport.getName() + "\" failed in the current page context "
+ "(height = " + pageHeight + ", top margin = " + topMargin
+ ", bottom margin = " + bottomMargin + ") : ",
brokenRules);
}
else if (log.isDebugEnabled())
{
log.debug("Band height validation for subreport \""
+ jasperReport.getName() + "\" succeeded in the current page context "
+ "(height = " + pageHeight + ", top margin = " + topMargin
+ ", bottom margin = " + bottomMargin + ")");
}
}
}
/**
* Verifies the list of copied values against the subreport.
*
* @throws JRException
*/
private void checkReturnValues() throws JRException
{
if (returnValues != null && returnValues.length > 0)
{
for (int i = 0; i < returnValues.length; i++)
{
JRSubreportReturnValue returnValue = returnValues[i];
String subreportVariableName = returnValue.getSubreportVariable();
JRVariable subrepVariable = subreportFiller.getVariable(subreportVariableName);
if (subrepVariable == null)
{
throw new JRException("Subreport variable " + subreportVariableName + " not found.");
}
JRVariable variable = filler.getVariable(returnValue.getToVariable());
if (
returnValue.getCalculationValue() == CalculationEnum.COUNT
|| returnValue.getCalculationValue() == CalculationEnum.DISTINCT_COUNT
)
{
if (!Number.class.isAssignableFrom(variable.getValueClass()))
{
throw new JRException("Variable " + returnValue.getToVariable() +
" must have a numeric type.");
}
}
else if (!variable.getValueClass().isAssignableFrom(subrepVariable.getValueClass()) &&
!(Number.class.isAssignableFrom(variable.getValueClass()) && Number.class.isAssignableFrom(subrepVariable.getValueClass())))
{
throw new JRException("Variable " + returnValue.getToVariable() +
" is not assignable from subreport variable " +
subreportVariableName);
}
}
}
}
protected void resolveElement (JRPrintElement element, byte evaluation)
{
// nothing
}
public Boolean isOwnUsingCache()
{
return ((JRSubreport)parent).isOwnUsingCache();
}
public void setUsingCache(Boolean isUsingCache)
{
}
public JRFillCloneable createClone(JRFillCloneFactory factory)
{
//not needed
return null;
}
protected static JRSubreportRunnerFactory getRunnerFactory() throws JRException
{
String factoryClassName = JRProperties.getProperty(JRSubreportRunnerFactory.SUBREPORT_RUNNER_FACTORY);
if (factoryClassName == null)
{
throw new JRException("Property \"" + JRSubreportRunnerFactory.SUBREPORT_RUNNER_FACTORY + "\" must be set");
}
return (JRSubreportRunnerFactory) runnerFactoryCache.getCachedInstance(factoryClassName);
}
protected int getContentsStretchHeight()
{
return subreportFiller.getCurrentPageStretchHeight();
}
}
