net.sf.jasperreports.compilers.SimpleTextEvaluators Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jasperreports Show documentation
Show all versions of jasperreports Show documentation
Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 TIBCO Software Inc. 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 .
*/
package net.sf.jasperreports.compilers;
import java.util.HashMap;
import java.util.Map;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.fill.ExpressionValues;
import net.sf.jasperreports.engine.fill.FillExpressionDefaultValues;
import net.sf.jasperreports.engine.fill.FillExpressionEstimatedValues;
import net.sf.jasperreports.engine.fill.FillExpressionOldValues;
import net.sf.jasperreports.engine.fill.JREvaluator;
import net.sf.jasperreports.engine.fill.JRFillField;
import net.sf.jasperreports.engine.fill.JRFillParameter;
import net.sf.jasperreports.engine.fill.JRFillVariable;
import net.sf.jasperreports.engine.fill.SimpleTextExpressionEvaluator;
import net.sf.jasperreports.engine.type.ExpressionTypeEnum;
/**
* @author Lucian Chirita ([email protected])
*/
public class SimpleTextEvaluators implements DirectExpressionEvaluators
{
private ExpressionValues defaultValues;
private ExpressionValues oldValues;
private ExpressionValues estimatedValues;
private Map evaluators;
public SimpleTextEvaluators()
{
this.evaluators = new HashMap<>();
}
@Override
public void init(JREvaluator evaluator,
Map parametersMap,
Map fieldsMap,
Map variablesMap)
{
defaultValues = new FillExpressionDefaultValues(evaluator, parametersMap, fieldsMap, variablesMap);
oldValues = new FillExpressionOldValues(evaluator, parametersMap, fieldsMap, variablesMap);
estimatedValues = new FillExpressionEstimatedValues(evaluator, parametersMap, fieldsMap, variablesMap);
this.evaluators.clear();
}
@Override
public DirectExpressionEvaluator getEvaluator(JRExpression expression)
{
if (expression.getType() == ExpressionTypeEnum.SIMPLE_TEXT)
{
Evaluator evaluator = evaluators.get(expression);
if (evaluator == null)
{
evaluator = new Evaluator(expression);
evaluators.put(expression, evaluator);
}
return evaluator;
}
return null;
}
protected class Evaluator implements DirectExpressionEvaluator
{
private final JRExpression expression;
public Evaluator(JRExpression expression)
{
this.expression = expression;
}
@Override
public Object evaluate()
{
return SimpleTextExpressionEvaluator.evaluateExpression(expression, defaultValues);
}
@Override
public Object evaluateOld()
{
return SimpleTextExpressionEvaluator.evaluateExpression(expression, oldValues);
}
@Override
public Object evaluateEstimated()
{
return SimpleTextExpressionEvaluator.evaluateExpression(expression, estimatedValues);
}
}
}