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DynamicReports is an open source Java reporting library based on JasperReports. It allows to create dynamic report designs and it doesn't need a visual report designer.
You can very quickly create reports and produce documents that can be displayed, printed or exported into many popular formats such as PDF, Excel, Word and others.
/**
* DynamicReports - Free Java reporting library for creating reports dynamically
*
* Copyright (C) 2010 - 2016 Ricardo Mariaca
* http://www.dynamicreports.org
*
* This file is part of DynamicReports.
*
* DynamicReports 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.
*
* DynamicReports 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 DynamicReports. If not, see .
*/
package net.sf.dynamicreports.report.definition.expression;
import java.util.List;
import net.sf.dynamicreports.report.definition.ReportParameters;
/**
* A complex implementation of an expression.
* The difference between a simple and complex expression is that a complex expression allows registering additional
* fields or variables that are not defined in the report and are needed for calculating the value.
*
* @author Ricardo Mariaca ([email protected])
*/
public interface DRIComplexExpression extends DRIExpression {
public List> getExpressions();
/**
* Evaluates the expression.
*
* @param values the values of the registered expressions
* @param reportParameters access to report fields, variables, parameters, expressions, and other report values
* @return the result of the expression evaluation
*/
public T evaluate(List values, ReportParameters reportParameters);
}