alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

What this is

This file is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Other links

The source code

// $Header: /home/cvs/jakarta-jmeter/src/jorphan/org/apache/jorphan/gui/ObjectTableModel.java,v 1.5 2004/02/11 23:48:32 sebb Exp $
/*
 * Copyright 2003-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
*/

package org.apache.jorphan.gui;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;

import javax.swing.event.TableModelEvent;
import javax.swing.table.DefaultTableModel;

import org.apache.jorphan.logging.LoggingManager;
import org.apache.log.Logger;

/**
 * @version $Revision: 1.5 $
 */
public class ObjectTableModel extends DefaultTableModel
{
    private static Logger log = LoggingManager.getLoggerForClass();
    private transient ArrayList objects = new ArrayList();
    private transient List headers = new ArrayList();
    private transient ArrayList classes = new ArrayList();
    private transient Class objectClass;

    private transient ArrayList setMethods = new ArrayList();
    private transient ArrayList getMethods = new ArrayList();

    public ObjectTableModel(String[] headers, String[] propertyNames, Class[] propertyClasses, Class[] renderClasses, Object sampleObject)
    {
        this.headers.addAll(Arrays.asList(headers));
        this.classes.addAll(Arrays.asList(renderClasses));
        objectClass = sampleObject.getClass();
        Class[] emptyClasses = new Class[0];
        for (int i = 0; i < propertyNames.length; i++)
        {
            propertyNames[i] =
                propertyNames[i].substring(0, 1).toUpperCase()
                    + propertyNames[i].substring(1);
            try
            {
                if (!propertyClasses[i].equals(Boolean.class)
                    && !propertyClasses[i].equals(boolean.class))
                {
                    getMethods.add(
                        objectClass.getMethod(
                            "get" + propertyNames[i],
                            emptyClasses));
                }
                else
                {
                    getMethods.add(
                        objectClass.getMethod(
                            "is" + propertyNames[i],
                            emptyClasses));
                }
                setMethods.add(objectClass.getMethod("set" + propertyNames[i], new Class[] { propertyClasses[i] }));
            }
            catch (NoSuchMethodException e)
            {
                log.error("Invalid Method name for class: " + objectClass, e);
            }
        }
    }

    public Iterator iterator()
    {
        return objects.iterator();
    }

    public void clearData()
    {
        int size = getRowCount();
        objects.clear();
        super.fireTableRowsDeleted(0, size);
    }

    public void addRow(Object value)
    {
        objects.add(value);
        super.fireTableRowsInserted(objects.size() - 1, objects.size());
    }

    /**
     * @see javax.swing.table.TableModel#getColumnCount()
     */
    public int getColumnCount()
    {
        return headers.size();
    }

    /**
     * @see javax.swing.table.TableModel#getColumnName(int)
     */
    public String getColumnName(int col)
    {
        return (String) headers.get(col);
    }

    /**
     * @see javax.swing.table.TableModel#getRowCount()
     */
    public int getRowCount()
    {
        if (objects == null)
        {
            return 0;
        }
        return objects.size();
    }

    /**
     * @see javax.swing.table.TableModel#getValueAt(int, int)
     */
    public Object getValueAt(int row, int col)
    {
        Object value = objects.get(row);
        Method getMethod = (Method) getMethods.get(col);
        try
        {
            return getMethod.invoke(value, new Object[0]);
        }
        catch (IllegalAccessException e)
        {
            log.error("Illegal method access", e);
        }
        catch (InvocationTargetException e)
        {
            log.error("incorrect method access", e);
        }
        return null;
    }

    /**
     * @see javax.swing.table.TableModel#isCellEditable(int, int)
     */
    public boolean isCellEditable(int arg0, int arg1)
    {
        return true;
    }

    /**
     * @see javax.swing.table.DefaultTableModel#moveRow(int, int, int)
     */
    public void moveRow(int start, int end, int to)
    {
        List subList = objects.subList(start, end);
        for (int x = end - 1; x >= start; x--)
        {
            objects.remove(x);
        }
        objects.addAll(to, subList);
        super.fireTableChanged(new TableModelEvent(this));
    }

    /**
     * @see javax.swing.table.DefaultTableModel#removeRow(int)
     */
    public void removeRow(int row)
    {
        objects.remove(row);
        super.fireTableRowsDeleted(row, row);
    }

    /**
     * @see javax.swing.table.TableModel#setValueAt(java.lang.Object, int, int)
     */
    public void setValueAt(Object cellValue, int row, int col)
    {
        if (row < objects.size())
        {
            Object value = objects.get(row);
            if (col < setMethods.size())
            {
                Method setMethod = (Method) setMethods.get(col);
                try
                {
                    setMethod.invoke(value, new Object[] { cellValue });
                }
                catch (IllegalAccessException e)
                {
                    log.error("Illegal method access", e);
                }
                catch (InvocationTargetException e)
                {
                    log.error("incorrect method access", e);
                }
                super.fireTableDataChanged();
            }
        }
    }

    /**
     * @see javax.swing.table.TableModel#getColumnClass(int)
     */
    public Class getColumnClass(int arg0)
    {
        return (Class) classes.get(arg0);
    }

}
... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.