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Java example source code file (SortableTableModel.java)

This example Java source code file (SortableTableModel.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

abstracttablemodel, event, gui, jtable, sortabletablemodel, swing, table, tablemodelcomparator, tablemodelevent, util

The SortableTableModel.java Java example source code

/*
 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

package sun.jvm.hotspot.ui.table;

import java.util.Collections;
import java.util.List;

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

/**
 * A table model which stores its rows as a list. The elements
 * of the list may be sortable by column. The TableModelComparator
 * must be set for sorting to be enabled.
 */
public abstract class SortableTableModel extends AbstractTableModel {

    private TableModelComparator comparator;

    /**
     * All the rows are stored as a List.
     */
    protected java.util.List elements;

    /**
     * This comparator must be set.
     */
    public void setComparator(TableModelComparator comparator) {
        this.comparator = comparator;
    }

    public void sortByColumn(int column, boolean ascending) {
        comparator.addColumn(column);
        comparator.setAscending(ascending);

        Collections.sort(elements, comparator);

        fireTableChanged(new TableModelEvent(this));
    }

    public boolean isAscending() {
        return comparator.isAscending();
    }

    public int getColumn() {
        return comparator.getColumn();
    }

}

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