/* Copyright (c) 2005 Ricebridge. All Rights Reserved.
 *
 * This file is available under the terms and conditions of the
 * Ricebridge "Open Source API" policy; Ricebridge grants use of this
 * copyrighted work under the terms of a BSD-style license only. See
 * http://www.opensource.org/licenses/bsd-license.php for more
 * information.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 *  - Redistributions of source code must retain the above copyright
 *  notice, this list of conditions and the following disclaimer.
 *
 *  - Redistributions in binary form must reproduce the above
 *  copyright notice, this list of conditions and the following
 *  disclaimer in the documentation and/or other materials provided
 *  with the distribution.
 *
 *  - Neither the name of the Ricebridge nor the names of its
 *  contributors may be used to endorse or promote products derived
 *  from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 */

package com.ricebridge.xmlman;


import com.ricebridge.xmlman.in.XmlTableModel;

import javax.swing.table.TableModel;

import java.util.*;


/** Implementation of {@link RecordListener} that stores data records as a {@link javax.swing.table.TableModel}.
 *    <p>This class is used to implement the {@link XmlManager#loadTableModel(File,RecordSpec) loadTableModel(*,RecordSpec)} 
 *  methods in {@link XmlManager}.
 *  It uses the {@link XmlTableModel} class to provide data to a {@link javax.swing.JTable}.</p>
 *    <p><code>TableModelRecordListener</code> is designed to be subclassed. You can change the default implementation by calling the 
 *  {@link com.ricebridge.xmlman.in.XmlManagerStoreBase#setTableModelRecordListenerClass setTableModelRecordListenerClass} method of 
 *  {@link com.ricebridge.xmlman.in.XmlManagerStore}, and providing a subclass of <code>TableModelRecordListener</code>. 
 *  <code>XmlManagerStore</code> can be accessed using {@link XmlManager#getXmlManagerStore}.</p>
 *    <p>The <b><a href="TableModelRecordListener.java.html">Source Code</a></b> of this Java class 
 *    is available under a <a href="http://www.opensource.org/licenses/bsd-license.php">BSD-style license</a>.</p>
 */
public class TableModelRecordListener extends RecordListenerSupport {

  // public

  /** First record specifies header names
   *  (name for {@link XmlSpec#setProperty XmlSpec.setProperty}: <code>TableModel.dataHasHeaders</code>). */
  public static final String PROP_TableModel_dataHasHeaders = "TableModel.dataHasHeaders";

  /** Specify that table cells can be edited
   *  (name for {@link XmlSpec#setProperty XmlSpec.setProperty}: <code>TableModel.editable</code>). */
  public static final String PROP_TableModel_editable = "TableModel.editable";


  // protected 

  /** {@link XmlTableModel} is an implementation of {@link javax.swing.table.TableModel}. */
  protected XmlTableModel iTableModel = null;


  // constructors

  /** Constructor with no parameters required for creating new objects in 
   *  {@link com.ricebridge.xmlman.in.XmlManagerStoreBase#newTableModelRecordListener XmlManagerStore.newTableModelRecordListener}.
   */
  public TableModelRecordListener() {
    iTableModel = new XmlTableModel();
  }
  
  
  // public methods

  /** Get the data records as a table.
   *  @return {@link javax.swing.table.TableModel} instance
   */
  public TableModel getTableModel() {
    return iTableModel;
  }


  /** Return a textual description suitable for debugging. */
  public String toString() {
    return "TableModelRecordListener[rows="+iTableModel.getRowCount()+",cols="+iTableModel.getColumnCount()+"]";
  }


  // protected

  /** Handle property settings for loading {@link javax.swing.table.TableModel TableModels}. 
   *    <p>You can change these using {@link XmlSpec}.</p>
   *  @see RecordListener#setXmlSpec
   *  @see #PROP_TableModel_dataHasHeaders
   *  @see #PROP_TableModel_editable
   */
  protected void setXmlSpecImpl( XmlSpec pXmlSpec ) {
    iTableModel.setDataHasHeaders( pXmlSpec.getBooleanProperty( PROP_TableModel_dataHasHeaders ) );
    iTableModel.setEditable( pXmlSpec.getBooleanProperty( PROP_TableModel_editable ) );
  }


  /** Set the field names of the XPath expressions.
   *   <p>These will be used as the table column headers.</p>
   *  @see RecordListener#setFieldNames
   */
  protected void setFieldNamesImpl( String[] pFieldNames ) {
    iTableModel.setHeaders( pFieldNames );
  }


  /** Store the data record <code>String[]</code>. 
   *  @see RecordListener#handleRecord
   */
  protected BadRecord handleRecordImpl( String[] pRecord, long pRecordNumber ) {
    iTableModel.addRecord( pRecord );
    return null;
  }
}