/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.designtime;
import org.pentaho.reporting.engine.classic.core.MetaTableModel;
import org.pentaho.reporting.engine.classic.core.wizard.DataAttributeContext;
import org.pentaho.reporting.engine.classic.core.wizard.DataAttributes;
import org.pentaho.reporting.engine.classic.core.wizard.DefaultDataAttributes;
import org.pentaho.reporting.engine.classic.core.wizard.EmptyDataAttributes;
import javax.swing.event.TableModelListener;
import javax.swing.table.TableModel;
public class OfflineTableModel implements MetaTableModel {
private Object[] values;
private Class[] columnTypes;
private String[] columnNames;
private int columnCount;
private DefaultDataAttributes tableAttributes;
private DefaultDataAttributes[] columnAttributes;
public OfflineTableModel( final TableModel model, final DataAttributeContext dataAttributeContext ) {
columnCount = model.getColumnCount();
columnTypes = new Class[columnCount];
columnNames = new String[columnCount];
columnAttributes = new DefaultDataAttributes[columnCount];
values = new Object[columnCount];
tableAttributes = new DefaultDataAttributes();
for ( int i = 0; i < columnCount; i++ ) {
columnTypes[i] = model.getColumnClass( i );
columnNames[i] = model.getColumnName( i );
columnAttributes[i] = new DefaultDataAttributes();
}
if ( model instanceof MetaTableModel ) {
final MetaTableModel metaTableModel = (MetaTableModel) model;
tableAttributes.merge( metaTableModel.getTableAttributes(), dataAttributeContext );
for ( int i = 0; i < columnCount; i++ ) {
columnAttributes[i].merge( metaTableModel.getColumnAttributes( i ), dataAttributeContext );
}
}
if ( model.getRowCount() > 0 ) {
for ( int i = 0; i < columnCount; i++ ) {
values[i] = model.getValueAt( 0, i );
}
}
}
/**
* Returns the meta-attribute as Java-Object. The object type that is expected by the caller is defined in the
* TableMetaData property set. It is the responsibility of the implementor to map the native meta-data model into a
* model suitable for reporting.
* <p/>
* Be aware that cell-level attributes do not make it into the designtime dataschema, as this dataschema only looks at
* the structural metadata available and does not contain any data references.
*
* @param row
* the row of the cell for which the meta-data is queried.
* @param column
* the index of the column for which the meta-data is queried.
* @return the meta-data object.
*/
public DataAttributes getCellDataAttributes( final int row, final int column ) {
return EmptyDataAttributes.INSTANCE;
}
/**
* Checks, whether cell-data attributes are supported by this tablemodel implementation.
*
* @return true, if the model supports cell-level attributes, false otherwise.
*/
public boolean isCellDataAttributesSupported() {
return false;
}
/**
* Returns the column-level attributes for the given column.
*
* @param column
* the column.
* @return data-attributes, never null.
*/
public DataAttributes getColumnAttributes( final int column ) {
return columnAttributes[column];
}
/**
* Returns table-wide attributes. This usually contain hints about the data-source used to query the data as well as
* hints on the sort-order of the data.
*
* @return the table-attributes, never null.
*/
public DataAttributes getTableAttributes() {
return tableAttributes;
}
/**
* Returns the number of rows in the model. A <code>JTable</code> uses this method to determine how many rows it
* should display. This method should be quick, as it is called frequently during rendering.
*
* @return the number of rows in the model
* @see #getColumnCount
*/
public int getRowCount() {
return 1;
}
/**
* Returns the number of columns in the model. A <code>JTable</code> uses this method to determine how many columns it
* should create and display by default.
*
* @return the number of columns in the model
* @see #getRowCount
*/
public int getColumnCount() {
return columnCount;
}
/**
* Returns the name of the column at <code>columnIndex</code>. This is used to initialize the table's column header
* name. Note: this name does not need to be unique; two columns in a table can have the same name.
*
* @param columnIndex
* the index of the column
* @return the name of the column
*/
public String getColumnName( final int columnIndex ) {
return columnNames[columnIndex];
}
/**
* Returns the most specific superclass for all the cell values in the column. This is used by the <code>JTable</code>
* to set up a default renderer and editor for the column.
*
* @param columnIndex
* the index of the column
* @return the common ancestor class of the object values in the model.
*/
public Class getColumnClass( final int columnIndex ) {
return columnTypes[columnIndex];
}
/**
* Returns true if the cell at <code>rowIndex</code> and <code>columnIndex</code> is editable. Otherwise,
* <code>setValueAt</code> on the cell will not change the value of that cell.
*
* @param rowIndex
* the row whose value to be queried
* @param columnIndex
* the column whose value to be queried
* @return true if the cell is editable
* @see #setValueAt
*/
public boolean isCellEditable( final int rowIndex, final int columnIndex ) {
return false;
}
/**
* Returns the value for the cell at <code>columnIndex</code> and <code>rowIndex</code>.
*
* @param rowIndex
* the row whose value is to be queried
* @param columnIndex
* the column whose value is to be queried
* @return the value Object at the specified cell
*/
public Object getValueAt( final int rowIndex, final int columnIndex ) {
if ( rowIndex == 0 ) {
return values[columnIndex];
}
return null;
}
/**
* Sets the value in the cell at <code>columnIndex</code> and <code>rowIndex</code> to <code>aValue</code>.
*
* @param aValue
* the new value
* @param rowIndex
* the row whose value is to be changed
* @param columnIndex
* the column whose value is to be changed
* @see #getValueAt
* @see #isCellEditable
*/
public void setValueAt( final Object aValue, final int rowIndex, final int columnIndex ) {
// ignored
}
/**
* Adds a listener to the list that is notified each time a change to the data model occurs.
*
* @param l
* the TableModelListener
*/
public void addTableModelListener( final TableModelListener l ) {
// ignored
}
/**
* Removes a listener from the list that is notified each time a change to the data model occurs.
*
* @param l
* the TableModelListener
*/
public void removeTableModelListener( final TableModelListener l ) {
// ignored
}
}