ar.com.fdvs.dj.domain.chart.dataset.AbstractDataset Maven / Gradle / Ivy

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/*
 * DynamicJasper: A library for creating reports dynamically by specifying
 * columns, groups, styles, etc. at runtime. It also saves a lot of development
 * time in many cases! (http://sourceforge.net/projects/dynamicjasper)
 *
 * Copyright (C) 2008  FDV Solutions (http://www.fdvsolutions.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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *
 */

package ar.com.fdvs.dj.domain.chart.dataset;

import ar.com.fdvs.dj.domain.DJBaseElement;
import ar.com.fdvs.dj.domain.DynamicJasperDesign;
import ar.com.fdvs.dj.domain.entities.Entity;
import ar.com.fdvs.dj.domain.entities.columns.AbstractColumn;
import ar.com.fdvs.dj.domain.entities.columns.PropertyColumn;
import net.sf.jasperreports.engine.design.JRDesignChartDataset;
import net.sf.jasperreports.engine.design.JRDesignExpression;
import net.sf.jasperreports.engine.design.JRDesignGroup;
import net.sf.jasperreports.engine.design.JRDesignVariable;
import net.sf.jasperreports.engine.type.IncrementTypeEnum;
import net.sf.jasperreports.engine.type.ResetTypeEnum;

import java.util.List;
import java.util.Map;

public abstract class AbstractDataset extends DJBaseElement {
	private static final long serialVersionUID = Entity.SERIAL_VERSION_UID;
	/**
	 * Generates an expression from a variable
	 * @param var The variable from which to generate the expression
	 * @return A expression that represents the given variable
	 */
	protected static JRDesignExpression getExpressionFromVariable(JRDesignVariable var){
		JRDesignExpression exp = new JRDesignExpression();
		exp.setText("$V{" + var.getName() + "}");
		exp.setValueClass(var.getValueClass());
		return exp;
	}
	
	protected static void setResetStyle(JRDesignChartDataset dataset, JRDesignGroup group, JRDesignGroup parentGroup){
		//When to start a new chart? When the group's parent changes
		dataset.setResetGroup(parentGroup);
		dataset.setIncrementType( IncrementTypeEnum.GROUP );
		dataset.setIncrementGroup(group);
		if (dataset.getResetGroup().equals(group))
			dataset.setResetType( ResetTypeEnum.REPORT );
		else
			dataset.setResetType( ResetTypeEnum.GROUP );
	}
	
	public abstract PropertyColumn getColumnsGroup();
	
	public abstract List getColumns();
	
	public abstract JRDesignChartDataset transform(DynamicJasperDesign design, String name, JRDesignGroup group, JRDesignGroup parentGroup, Map vars);
	
	public abstract void addSerie(AbstractColumn column);
}