JDK8/Java8源码在线阅读

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 * 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
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package javax.swing.table;

import javax.swing.*;
import javax.swing.event.*;

/**
 *  The <code>TableModel</code> interface specifies the methods the
 *  <code>JTable</code> will use to interrogate a tabular data model. <p>
 *
 *  The <code>JTable</code> can be set up to display any data
 *  model which implements the
 *  <code>TableModel</code> interface with a couple of lines of code:
 *  <pre>
 *      TableModel myData = new MyTableModel();
 *      JTable table = new JTable(myData);
 *  </pre><p>
 *
 * For further documentation, see <a href="https://docs.oracle.com/javase/tutorial/uiswing/components/table.html#data">Creating a Table Model</a>
 * in <em>The Java Tutorial</em>.
 *
 * @author Philip Milne
 * @see JTable
 */

public interface TableModel
{
    /**
     * 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();

    /**
     * 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();

    /**
     * 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(int 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(int 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(int rowIndex, int columnIndex);

    /**
     * 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(int rowIndex, int columnIndex);

    /**
     * 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
     */

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