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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.subtotal;

import net.sf.dynamicreports.report.base.DRSubtotal;
import net.sf.dynamicreports.report.builder.AbstractBuilder;
import net.sf.dynamicreports.report.builder.HyperLinkBuilder;
import net.sf.dynamicreports.report.builder.column.ColumnBuilder;
import net.sf.dynamicreports.report.builder.expression.Expressions;
import net.sf.dynamicreports.report.builder.group.GroupBuilder;
import net.sf.dynamicreports.report.builder.style.ReportStyleBuilder;
import net.sf.dynamicreports.report.constant.ComponentDimensionType;
import net.sf.dynamicreports.report.constant.Constants;
import net.sf.dynamicreports.report.constant.Position;
import net.sf.dynamicreports.report.constant.SubtotalPosition;
import net.sf.dynamicreports.report.definition.datatype.DRIDataType;
import net.sf.dynamicreports.report.definition.expression.DRIExpression;
import net.sf.dynamicreports.report.definition.expression.DRIValueFormatter;

import org.apache.commons.lang3.Validate;

/**
 * @author Ricardo Mariaca ([email protected])
 */
@SuppressWarnings("unchecked")
public abstract class BaseSubtotalBuilder, U> extends AbstractBuilder> {
	private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;

	private DRIExpression valueExpression;

	protected BaseSubtotalBuilder(ColumnBuilder showInColumn) {
		super(new DRSubtotal(showInColumn.build()));
	}

	protected void setValueExpression(DRIExpression valueExpression) {
		this.valueExpression = valueExpression;
	}

	public T setShowInColumn(ColumnBuilder showInColumn) {
		Validate.notNull(showInColumn, "showInColumn must not be null");
		getObject().setShowInColumn(showInColumn.build());
		return (T) this;
	}

	public T setLabel(DRIExpression labelExpression) {
		getObject().setLabelExpression(labelExpression);
		return (T) this;
	}

	public T setLabel(String label) {
		getObject().setLabelExpression(Expressions.text(label));
		return (T) this;
	}

	public T setLabelStyle(ReportStyleBuilder labelStyle) {
		if (labelStyle != null) {
			getObject().setLabelStyle(labelStyle.getStyle());
		}
		else {
			getObject().setLabelStyle(null);
		}
		return (T) this;
	}

	public T setLabelPosition(Position labelPosition) {
		getObject().setLabelPosition(labelPosition);
		return (T) this;
	}

  /**
   * Sets the label component preferred width.
   * @see net.sf.dynamicreports.report.builder.Units
   *
   * @param width the label component preferred width >= 0
   * @exception IllegalArgumentException if width is < 0
   */
	public T setLabelWidth(Integer width) {
		getObject().setLabelWidth(width);
		return (T) this;
	}

  /**
   * Sets the label component fixed width.
   * @see net.sf.dynamicreports.report.builder.Units
   *
   * @param width the label component fixed width >= 0
   * @exception IllegalArgumentException if width is < 0
   */
	public T setLabelFixedWidth(Integer width) {
		getObject().setLabelWidth(width);
		getObject().setLabelWidthType(ComponentDimensionType.FIXED);
		return (T) this;
	}

  /**
   * Sets the label component minimum width.
   * @see net.sf.dynamicreports.report.builder.Units
   *
   * @param width the label component minimum width >= 0
   * @exception IllegalArgumentException if width is < 0
   */
	public T setLabelMinWidth(Integer width) {
		getObject().setLabelWidth(width);
		getObject().setLabelWidthType(ComponentDimensionType.EXPAND);
		return (T) this;
	}

	public T setPattern(String pattern) {
		getObject().getValueField().setPattern(pattern);
		return (T) this;
	}

	public T setPattern(DRIExpression patternExpression) {
		getObject().getValueField().setPatternExpression(patternExpression);
		return (T) this;
	}

	public T setValueFormatter(DRIValueFormatter valueFormatter) {
		getObject().getValueField().setValueFormatter(valueFormatter);
		return (T) this;
	}

	@SuppressWarnings("rawtypes")
	public T setDataType(DRIDataType dataType) {
		getObject().getValueField().setDataType(dataType);
		return (T) this;
	}

	public T setAnchorName(String anchorName) {
		getObject().getValueField().setAnchorNameExpression(Expressions.text(anchorName));
		return (T) this;
	}

	public T setAnchorName(DRIExpression anchorNameExpression) {
		getObject().getValueField().setAnchorNameExpression(anchorNameExpression);
		return (T) this;
	}

	public T setBookmarkLevel(Integer bookmarkLevel) {
		getObject().getValueField().setBookmarkLevel(bookmarkLevel);
		return (T) this;
	}

	public T setHyperLink(HyperLinkBuilder hyperLink) {
		if (hyperLink != null) {
			getObject().getValueField().setHyperLink(hyperLink.getHyperLink());
		}
		else {
			getObject().getValueField().setHyperLink(null);
		}
		return (T) this;
	}

	public T setRows(Integer rows) {
		getObject().getValueField().setRows(rows);
		return (T) this;
	}

	public T setFixedRows(Integer rows) {
		getObject().getValueField().setRows(rows);
		getObject().getValueField().setHeightType(ComponentDimensionType.FIXED);
		return (T) this;
	}

	public T setMinRows(Integer rows) {
		getObject().getValueField().setRows(rows);
		getObject().getValueField().setHeightType(ComponentDimensionType.EXPAND);
		return (T) this;
	}

	public T setHeight(Integer height) {
		getObject().getValueField().setHeight(height);
		return (T) this;
	}

	public T setFixedHeight(Integer height) {
		getObject().getValueField().setHeight(height);
		getObject().getValueField().setHeightType(ComponentDimensionType.FIXED);
		return (T) this;
	}

	public T setMinHeight(Integer height) {
		getObject().getValueField().setHeight(height);
		getObject().getValueField().setHeightType(ComponentDimensionType.EXPAND);
		return (T) this;
	}

	public T setStyle(ReportStyleBuilder style) {
		if (style != null) {
			getObject().getValueField().setStyle(style.getStyle());
		}
		else {
			getObject().getValueField().setStyle(null);
		}
		return (T) this;
	}

	public T setPrintWhenExpression(DRIExpression printWhenExpression) {
		getObject().getValueField().setPrintWhenExpression(printWhenExpression);
		return (T) this;
	}

	public T setGroup(GroupBuilder group) {
		if (group != null) {
			getObject().setGroup(group.getGroup());
		}
		else {
			getObject().setGroup(null);
		}
		return (T) this;
	}

	public T setPosition(SubtotalPosition position) {
		getObject().setPosition(position);
		return (T) this;
	}

	@Override
	protected void configure() {
		super.configure();
		getObject().getValueField().setValueExpression(valueExpression);
	}

	public DRSubtotal getSubtotal() {
		return build();
	}
}