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import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
 
/**
*@author Sébastien Cabane
*
*/
public class PageModel extends AbstractTableModel {
    private int pageSize = 0;  //nombre de ligne dans une page
    private int currentPage = 0; //La page actuelle
    private TableModel delegate; //Le TableModel contenant les données
 
    public PageModel (TableModel delegate, int pageSize, int currentPage) {
        this.delegate = delegate;
        this.pageSize = pageSize;
        this.currentPage = currentPage;        
    }
 
    //méthodes de l'interface TableModel
 
    public int getRowCount () {
        return pageSize;
    }
 
    public int getColumnCount () {
        return delegate.getColumnCount();
    }
 
    public Class getColumnClass (int i) {
        return delegate.getColumnClass(i);
    }
 
    public String getColumnName (int i) {
        return delegate.getColumnName(i);
    }
 
    public Object getValueAt (int rowIndex, int columnIndex) {
        return delegate.getValueAt(convertTableRowIndexToModel(rowIndex),columnIndex);    
    }
 
    public void setValueAt (Object value,int rowIndex, int columnIndex) {
        delegate.setValueAt(value, convertTableRowIndexToModel(rowIndex), columnIndex);
    }
 
    public boolean isCellEditable (int rowIndex, int columnIndex) {
        return delegate.isCellEditable(convertTableRowIndexToModel(rowIndex),columnIndex);
    }
 
 
    //méthode utilitaires
 
    public int convertTableRowIndexToModel (int rowIndex) {
        return currentPage * pageSize + rowIndex;
    }
 
    //getters et setters
 
    public void setDelegate (TableModel delegate) {
        this.delegate = delegate;
    }
 
    public TableModel getDelegate () {
        return this.delegate;
    }
 
    public void setPageSize (int pageSize) {
        this.pageSize = pageSize;
    }
 
    public int getPageSize () {
        return this.pageSize;
    }
 
    public void setCurrentPage (int currentPage) {
        this.currentPage = currentPage;        
    }
 
    public int getCurrentPage () {
        return this.currentPage;
    }
 
} |