tablefieldsmodel.java

一个OR Mapping 工具

package org.dbgen.view;

import javax.swing.*;
import javax.swing.table.*;
import org.dbgen.*;
import org.dbgen.event.*;

/**
 * This class was generated by a SmartGuide.
 *
 */
public class TableFieldsModel extends AbstractTableModel implements FieldChangedListener {
  Table fieldTable = null;
  protected transient java.beans.PropertyChangeSupport propertyChange = new java.beans.PropertyChangeSupport(this);
  protected final static String[] columns = { "Key", "Name", "Type", "Length", "Scale", "Read-only" };

  /**
   * TableFieldsModel constructor comment.
   */
  public TableFieldsModel() {
    super();
  }

  /**
   * This method was created by a SmartGuide.
   * @param table org.dbgen.Table
   */
  public TableFieldsModel(Table table) {
    super();
    setTable(table);
  }

  /**
   * The addPropertyChangeListener method was generated to support the propertyChange field.
   */
  public synchronized void addPropertyChangeListener(java.beans.PropertyChangeListener listener) {
    propertyChange.addPropertyChangeListener(listener);
  }

  /**
   * This method was created by a SmartGuide.
   * @param table org.dbgen.Table
   */
  public void fieldAdded(FieldAddedEvent event) {
    refresh();

    return;
  }

  /**
   * This method was created by a SmartGuide.
   */
  public void fieldDeleted(FieldDeletedEvent event) {
    refresh();

    return;
  }

  /**
   * The firePropertyChange method was generated to support the propertyChange field.
   */
  public void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
    propertyChange.firePropertyChange(propertyName, oldValue, newValue);
  }

  /**
   * This method was created by a SmartGuide.
   * @return java.lang.Class
   * @param col int
   */
  public Class getColumnClass(int col) {
    return getValueAt(0, col).getClass();
  }

  /**
   * getColumnCount method comment.
   */
  public int getColumnCount() {
    return columns.length;
  }

  /**
   * This method was created by a SmartGuide.
   * @return java.lang.String
   * @param col int
   */
  public String getColumnName(int col) {
    return columns[col];
  }

  /**
   * getRowCount method comment.
   */
  public int getRowCount() {
    return getTable().getFields().size();
  }

  /**
   * Gets the table property (org.dbgen.Table) value.
   * @return The table property value.
   * @see #setTable
   */
  public Table getTable() {
    /* Returns the table property value. */
    if (fieldTable == null) {
      try {
        fieldTable = new Table();
      } catch (Throwable exception) {
        System.err.println("Exception creating table property.");
      }
    };

    return fieldTable;
  }

  /**
   * getValueAt method comment.
   * XXX - make N/A fields for non-length or non-scale field cases.
   */
  public Object getValueAt(int row, int col) {

    Field field = (Field) getTable().getFields().elementAt(row);
    int type = field.getType();
    boolean hasLength = FieldTypes.getHasLength(type);
    boolean hasScale = FieldTypes.getHasScale(type);

    switch (col)
    {
    case 0:

      return new Boolean(field.getIsKey());

    case 1:

      return new String(field.getName());

    case 2:

      return new FieldType(field.getType());

    case 3:

      return hasLength ? (Object) new Integer(field.getLength()) : new String("");

    case 4:

      return hasScale ? (Object) new Integer(field.getScale()) : new String("");

    case 5:

      return new Boolean(field.getIsReadOnly());
    default:

      return null;
    }
  }

  /**
   * This method was created by a SmartGuide.
   * @return boolean
   * @param row int
   * @param col int
   */
  public boolean isCellEditable(int row, int col) {

    /*
     * Key, name, and type columns are always editable.
     */
    if (col < 3 || col == 5)
      return true;

    /*
     * Length and scale columns are editable or not depending
     * on the type.
     */
    int type = ((FieldType) getValueAt(row, 2)).getType();

    switch (type)
    {
    case java.sql.Types.BIT:

    case java.sql.Types.TINYINT:

    case java.sql.Types.SMALLINT:

    case java.sql.Types.INTEGER:

    case java.sql.Types.REAL:

    case java.sql.Types.FLOAT:

    case java.sql.Types.DOUBLE:

    case java.sql.Types.LONGVARCHAR:

    case java.sql.Types.LONGVARBINARY:

    case java.sql.Types.DATE:

    case java.sql.Types.TIME:

    case java.sql.Types.TIMESTAMP:

      return false;

    case java.sql.Types.CHAR:

    case java.sql.Types.VARCHAR:

    case java.sql.Types.BINARY:

    case java.sql.Types.VARBINARY:

      return (col == 3 ? true : false);

    case java.sql.Types.DECIMAL:

    case java.sql.Types.NUMERIC:

      return true;
    }

    throw new RuntimeException("BUG: TableFieldsModel.isCellEditable incomplete.");
  }

  /**
   * Performs the refresh method.
   */
  public void refresh() {
    fireTableChanged(new javax.swing.event.TableModelEvent(this, -1, -1));

    return;
  }

  /**
   * The removePropertyChangeListener method was generated to support the propertyChange field.
   */
  public synchronized void removePropertyChangeListener(java.beans.PropertyChangeListener listener) {
    propertyChange.removePropertyChangeListener(listener);
  }

  /**
   * Sets the table property (org.dbgen.Table) value.
   * @param table The new value for the property.
   * @see #getTable
   */
  public void setTable(Table table) {
    /* Get the old property value for fire property change event. */
    Table oldValue = fieldTable;

    /* Set the table property (attribute) to the new value. */
    fieldTable = table;

    /* Fire (signal/notify) the table property change event. */
    firePropertyChange("table", oldValue, table);

    /* Listen to field changed events */
    table.addFieldChangedListener(this);

    return;
  }

  /**
   * This method was created by a SmartGuide.
   * @param value java.lang.Object
   * @param row int
   * @param col int
   */
  public void setValueAt(Object value, int row, int col) {

    org.dbgen.Debug.println("Setting (" + row + "," + col + ") value to: " + value + "<" + value.getClass() + ">");
    Field field = (Field) getTable().getFields().elementAt(row);

    switch (col)
    {
    case 0:
      field.setIsKey(((Boolean)value).booleanValue());
    break;

    case 1:
      field.setName((String) value);
    break;

    case 2:
      int type = ((FieldType) value).getType();
      field.setType(type);

      if (FieldTypes.getHasScale(type) && field.getScale() < 1)
      {
        field.setLength(19);
        field.setScale(4);
      }
    break;

    case 3:

      try {
        int i = Integer.parseInt((String) value);
        field.setLength(i);
      }
      catch (NumberFormatException e1)
      {
      }
    break;

    case 4:

      try {
        int i = Integer.parseInt((String) value);
        field.setScale(i);
      }
      catch (NumberFormatException e1)
      {
      }
    break;

    case 5:
      field.setIsReadOnly(((Boolean)value).booleanValue());
    break;
    default:
      throw new RuntimeException("BUG: TableFieldsModel.setValueAt() incomplete.");
    }
  }
}