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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.

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/**
 * 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.builder.style;

import net.sf.dynamicreports.report.base.style.DRStyle;
import net.sf.dynamicreports.report.constant.Constants;

import org.apache.commons.lang3.Validate;

/**
 * @author Ricardo Mariaca ([email protected])
 */
public class StyleBuilder extends BaseStyleBuilder implements ReportStyleBuilder {
	private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;

	protected StyleBuilder() {
		this(new DRStyle());
	}

	protected StyleBuilder(DRStyle style) {
		super(style);
	}

	public StyleBuilder conditionalStyles(ConditionalStyleBuilder ...conditionalStyles) {
		return addConditionalStyle(conditionalStyles);
	}

	public StyleBuilder addConditionalStyle(ConditionalStyleBuilder ...conditionalStyles) {
		Validate.notNull(conditionalStyles, "conditionalStyles must not be null");
		Validate.noNullElements(conditionalStyles, "conditionalStyles must not contains null conditionalStyle");
		for (ConditionalStyleBuilder conditionalStyle : conditionalStyles) {
			getObject().addConditionalStyle(conditionalStyle.build());
		}
		return this;
	}

	public StyleBuilder setName(String name) {
		getObject().setName(name);
		return this;
	}

	public StyleBuilder setParentStyle(ReportStyleBuilder parentStyle) {
		if (parentStyle != null) {
			getObject().setParentStyle(parentStyle.build());
		}
		else {
			getObject().setParentStyle(null);
		}
		return this;
	}
}