/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. 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 <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.crosstabs;
import net.sf.jasperreports.engine.JRElement;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.JRPrintText;
import net.sf.jasperreports.engine.JRVariable;
import net.sf.jasperreports.engine.type.RunDirectionEnum;
import net.sf.jasperreports.engine.util.JRProperties;
/**
* Crosstab element interface.
*
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: JRCrosstab.java 3583 2010-03-12 11:35:40Z shertage $
*/
public interface JRCrosstab extends JRElement
{
/**
* The default offset used for column breaks.
* @see #getColumnBreakOffset()
*/
public static final int DEFAULT_COLUMN_BREAK_OFFSET = 10;
/**
* Name of the built-in row count variable.
*/
public static final String VARIABLE_ROW_COUNT = "ROW_COUNT";
/**
* Name of the built-in column count variable.
*/
public static final String VARIABLE_COLUMN_COUNT = "COLUMN_COUNT";
/**
* Crosstab left to right run direction.
* @deprecated Replaced by {@link RunDirectionEnum#LTR}.
*/
public static final byte RUN_DIRECTION_LTR = JRPrintText.RUN_DIRECTION_LTR;
/**
* Crosstab right to left run direction.
*
* <p>
* When a crosstab is filled from right to left, the crosstab contents will start
* from the right extremity of the crosstab element area and grow towards the left.
* </p>
* @deprecated Replaced by {@link RunDirectionEnum#RTL}.
*/
public static final byte RUN_DIRECTION_RTL = JRPrintText.RUN_DIRECTION_RTL;
/**
* A property that provides a default value for the ignore width crosstab flag.
*
* <p>
* The property can be set globally and at report level. A flag/attribute
* set for a crosstab will override the property.
*
* <p>
* The default value of this property is <code>false</code>, i.e. crosstabs
* will break by default at the width set for the crosstab report element.
*
* @see #setIgnoreWidth(Boolean)
*/
public static final String PROPERTY_IGNORE_WIDTH =
JRProperties.PROPERTY_PREFIX + "crosstab.ignore.width";
/**
* Returns the ID of the crosstab.
* <p>
* The ID is generated when the report is compiled and is used internally.
*
* @return the ID of the crosstab
*/
public int getId();
/**
* Returns the input dataset of the crosstab.
*
* @return the input dataset of the crosstab
*/
public JRCrosstabDataset getDataset();
/**
* Returns the row groups of the crosstab.
*
* @return the row groups
*/
public JRCrosstabRowGroup[] getRowGroups();
/**
* Returns the column groups of the crosstab.
*
* @return the column groups
*/
public JRCrosstabColumnGroup[] getColumnGroups();
/**
* Returns the crosstab measures.
*
* @return the crosstab measures
*/
public JRCrosstabMeasure[] getMeasures();
/**
* Returns the column break offset.
* <p>
* When the crosstab columns do not fit the width, the crosstab
* breaks the columns and prints the ones that don't fit after printing
* the first set of columns for all rows. This method returns the offset
* to be used when continuing the printing after a column break.
*
* @return the column break offset
*/
public int getColumnBreakOffset();
/**
* Returns whether to repeat the column headers after a row break.
*
* @return whether to repeat the column headers after a row break
*/
public boolean isRepeatColumnHeaders();
/**
* Returns whether to repeat the row headers after a column break.
*
* @return whether to repeat the row headers after a column break
*/
public boolean isRepeatRowHeaders();
/**
* Returns the data cell matrix.
* <p>
* A crosstab can have multiple data cells for row/groups totals.
* These cells are organized in a (rowGroupCount + 1) x (columnGroupCount + 1)
* matrix as following:
* <ul>
* <li>the row index of a cell is
* <ul>
* <li>the row group index, if the cell corresponds to a total row</li>
* <li>rowGroupCount, otherwise</li>
* </ul>
* </li>
* <li>the column index of a cell is
* <ul>
* <li>the column group index, if the cell corresponds to a total column</li>
* <li>columnGroupCount, otherwise</li>
* </ul>
* </li>
* </ul>
* <p>
* E.g. if the crosstab has Country and City (subgroup of Country) row groups and Year and Month column
* groups, the cells will be organized in the following matrix
* <table border="1">
* <tr>
* <td></td>
* <td>0/Years total</td>
* <td>1/Months total</td>
* <td>2/Base</td>
* </tr>
* <tr>
* <td>0/Countries total</td>
* <td>Total for all countries and all years</td>
* <td>Total for all countries and a year</td>
* <td>Total for all countries and a month</td>
* </tr>
* <tr>
* <td>1/Cities total</td>
* <td>Total for a country and all years</td>
* <td>Total for a country and a year</td>
* <td>Total for a country and a month</td>
* </tr>
* <tr>
* <td>2/Base</td>
* <td>Total for a city and all years</td>
* <td>Total for a city and a year</td>
* <td>Total for a city and a month</td>
* </tr>
* </table>
* <p>
* If the data cell for a total row/column is not specified, the cell will be inherited
* from lower levels, if possible. For example, if the "Total for all countries and a year"
* cell is not specified, the "Total for a country and a year" or "Total for a city and a year"
* cell will be used (in this order).
* <p>
* The data cell sizes are calculated from the base data cell sizes, i.e.
* the height of all data cells for a row will be the height of the base cell
* of that row. The base cell sizes are also inherited, e.g. if the height of a total
* row is not specified the height of the base row will be used.
*
* @return the data cell matrix
*/
public JRCrosstabCell[][] getCells();
/**
* Returns the crosstab parameters.
* <p>
* Crosstabs have separate expression evaluators and cannot access
* the parameters/fields/variables of the report.
* In order to use a value from the report inside a crosstab, it should be
* passed as parameter to the crosstab.
* <p>
* A crosstab parameters has a name and a value expression.
*
* @return the crosstab parameters
*/
public JRCrosstabParameter[] getParameters();
/**
* Returns the parameters map expression.
* <p>
* The set of values for crosstab parameters can be set using a map.
* If a parameter has also a value expression, it will overwrite the value
* from the map.
*
* @return the parameters map expression
*/
public JRExpression getParametersMapExpression();
/**
* Returns a cell which will be rendered when no data was fed to the crosstab.
* <p>
* If this cell is not specified for a crosstab, nothing will be rendered for an
* empty crosstab.
* <p>
* The cell sizes are the same as the crosstab element sizes.
*
* @return a cell which will be rendered when no data was fed to the crosstab
*/
public JRCellContents getWhenNoDataCell();
/**
* Searches for an element inside all crosstab cells.
*
* @param key the element key
* @return the first element having the specified key
*/
public JRElement getElementByKey(String key);
/**
* Returns a cell which will be rendered at the upper-left corner of the crosstab.
* <p/>
* The cell size will be calculated based on the row/column header cell widths/heights.
*
* @return a cell which will be rendered at the upper-left corner of the crosstab
*/
public JRCellContents getHeaderCell();
/**
* Returns the variables defined for the crosstab.
*
* @return variables defined for the crosstab
* @see JRCrosstabGroup#getVariable()
* @see JRCrosstabMeasure#getVariable()
* @see #VARIABLE_ROW_COUNT
* @see #VARIABLE_COLUMN_COUNT
*/
public JRVariable[] getVariables();
/**
* @deprecated Replaced by {@link #getRunDirectionValue()}.
*/
public byte getRunDirection();
/**
* @deprecated Replaced by {@link #setRunDirection(RunDirectionEnum)}.
*/
public void setRunDirection(byte direction);
/**
* Retrieves the run direction of this crosstab
* @return a value representing one of the run direction constants in {@link RunDirectionEnum}
*/
public RunDirectionEnum getRunDirectionValue();
/**
* Sets the run direction of the crosstab.
* <p>
* Crosstabs can either be filled from left to right (the default)
* or from right to left (mainly for reports in RTL languages).
* </p>
* @param runDirectionEnum a value representing one of the run direction constants in {@link RunDirectionEnum}
*/
public void setRunDirection(RunDirectionEnum runDirectionEnum);
/**
* Returns the ignore width flag for the crosstab.
*
* @return the ignore width flag, or <code>null</code> is the crosstab
* does not specify a flag value
* @see #setIgnoreWidth(Boolean)
*/
public Boolean getIgnoreWidth();
/**
* Set the ignore width crosstab flag.
*
* <p>
* This flag determines whether the crosstab will break at the width set for
* the crosstab element, or whether the crosstab is to expand over this width
* (and over the page width as well).
*
* <p>
* If this flag is set to <code>true</code>, the crosstab will expand towards
* the right (or towards the left if the crosstab direction is RTL) as long
* as it needs to. This would result in crosstab cells being rendered over
* the page boundary; such elements will be exported by certain grid-based
* exporters such as the HTML or XLS ones, but will not be visible in export
* formats that observe the page width, such as the PDF exporter.
*
* <p>
* The default value of this flag is given by the
* {@link #PROPERTY_IGNORE_WIDTH} property.
*
* @param ignoreWidth whether the element width is to be ignored by the crosstab,
* or <code>null</code> if the default setting is to be used
* @see #PROPERTY_IGNORE_WIDTH
*/
public void setIgnoreWidth(Boolean ignoreWidth);
/**
* Set the ignore width crosstab flag.
*
* @param ignoreWidth
* @see #setIgnoreWidth(Boolean)
*/
public void setIgnoreWidth(boolean ignoreWidth);
}