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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
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 *
 * 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,
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 *
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package javax.swing.text;

import java.io.Serializable;
import java.text.ParseException;
import javax.swing.JFormattedTextField;


An implementation of
JFormattedTextField.AbstractFormatterFactory.
DefaultFormatterFactory allows specifying a number of
different JFormattedTextField.AbstractFormatters that are to
be used.
The most important one is the default one
(setDefaultFormatter). The default formatter will be used
if a more specific formatter could not be found. The following process
is used to determine the appropriate formatter to use.

    
  
  1. Is the passed in value null? Use the null formatter.
  
  2. Does the JFormattedTextField have focus? Use the edit
      formatter.
  
  3. Otherwise, use the display formatter.
  
  4. If a non-null AbstractFormatter has not been found, use
      the default formatter.




The following code shows how to configure a
JFormattedTextField with two
JFormattedTextField.AbstractFormatters, one for display and
one for editing.

JFormattedTextField.AbstractFormatter editFormatter = ...;
JFormattedTextField.AbstractFormatter displayFormatter = ...;
DefaultFormatterFactory factory = new DefaultFormatterFactory(
                displayFormatter, displayFormatter, editFormatter);
JFormattedTextField tf = new JFormattedTextField(factory);




Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing.  As of 1.4, support for long term storage
of all JavaBeans™
has been added to the java.beans package. Please see XMLEncoder. 
See Also:
Since:1.4
/**
 * An implementation of
 * <code>JFormattedTextField.AbstractFormatterFactory</code>.
 * <code>DefaultFormatterFactory</code> allows specifying a number of
 * different <code>JFormattedTextField.AbstractFormatter</code>s that are to
 * be used.
 * The most important one is the default one
 * (<code>setDefaultFormatter</code>). The default formatter will be used
 * if a more specific formatter could not be found. The following process
 * is used to determine the appropriate formatter to use.
 * <ol>
 *   <li>Is the passed in value null? Use the null formatter.
 *   <li>Does the <code>JFormattedTextField</code> have focus? Use the edit
 *       formatter.
 *   <li>Otherwise, use the display formatter.
 *   <li>If a non-null <code>AbstractFormatter</code> has not been found, use
 *       the default formatter.
 * </ol>
 * <p>
 * The following code shows how to configure a
 * <code>JFormattedTextField</code> with two
 * <code>JFormattedTextField.AbstractFormatter</code>s, one for display and
 * one for editing.
 * <pre>
 * JFormattedTextField.AbstractFormatter editFormatter = ...;
 * JFormattedTextField.AbstractFormatter displayFormatter = ...;
 * DefaultFormatterFactory factory = new DefaultFormatterFactory(
 *                 displayFormatter, displayFormatter, editFormatter);
 * JFormattedTextField tf = new JFormattedTextField(factory);
 * </pre>
 * <p>
 * <strong>Warning:</strong>
 * Serialized objects of this class will not be compatible with
 * future Swing releases. The current serialization support is
 * appropriate for short term storage or RMI between applications running
 * the same version of Swing.  As of 1.4, support for long term storage
 * of all JavaBeans&trade;
 * has been added to the <code>java.beans</code> package.
 * Please see {@link java.beans.XMLEncoder}.
 *
 * @see javax.swing.JFormattedTextField
 *
 * @since 1.4
 */
@SuppressWarnings("serial") // Same-version serialization only
public class DefaultFormatterFactory extends JFormattedTextField.AbstractFormatterFactory implements Serializable {
    
Default AbstractFormatter to use if a more specific one has
not been specified.

/**
     * Default <code>AbstractFormatter</code> to use if a more specific one has
     * not been specified.
     */
    private JFormattedTextField.AbstractFormatter defaultFormat;

    
JFormattedTextField.AbstractFormatter to use for display.

/**
     * <code>JFormattedTextField.AbstractFormatter</code> to use for display.
     */
    private JFormattedTextField.AbstractFormatter displayFormat;

    
JFormattedTextField.AbstractFormatter to use for editing.

/**
     * <code>JFormattedTextField.AbstractFormatter</code> to use for editing.
     */
    private JFormattedTextField.AbstractFormatter editFormat;

    
JFormattedTextField.AbstractFormatter to use if the value
is null.

/**
     * <code>JFormattedTextField.AbstractFormatter</code> to use if the value
     * is null.
     */
    private JFormattedTextField.AbstractFormatter nullFormat;


    
Constructs a DefaultFormatterFactory. 
/**
     * Constructs a {@code DefaultFormatterFactory}.
     */
    public DefaultFormatterFactory() {
    }

    
Creates a DefaultFormatterFactory with the specified
JFormattedTextField.AbstractFormatter.

Params:
  • defaultFormat – JFormattedTextField.AbstractFormatter to be used
                     if a more specific
                     JFormattedTextField.AbstractFormatter can not be
                     found.
/**
     * Creates a <code>DefaultFormatterFactory</code> with the specified
     * <code>JFormattedTextField.AbstractFormatter</code>.
     *
     * @param defaultFormat JFormattedTextField.AbstractFormatter to be used
     *                      if a more specific
     *                      JFormattedTextField.AbstractFormatter can not be
     *                      found.
     */
    public DefaultFormatterFactory(JFormattedTextField.
                                       AbstractFormatter defaultFormat) {
        this(defaultFormat, null);
    }

    
Creates a DefaultFormatterFactory with the specified
JFormattedTextField.AbstractFormatters.

Params:
  • defaultFormat – JFormattedTextField.AbstractFormatter to be used
                     if a more specific
                     JFormattedTextField.AbstractFormatter can not be
                     found.
  • displayFormat – JFormattedTextField.AbstractFormatter to be used
                     when the JFormattedTextField does not have focus.
/**
     * Creates a <code>DefaultFormatterFactory</code> with the specified
     * <code>JFormattedTextField.AbstractFormatter</code>s.
     *
     * @param defaultFormat JFormattedTextField.AbstractFormatter to be used
     *                      if a more specific
     *                      JFormattedTextField.AbstractFormatter can not be
     *                      found.
     * @param displayFormat JFormattedTextField.AbstractFormatter to be used
     *                      when the JFormattedTextField does not have focus.
     */
    public DefaultFormatterFactory(
                     JFormattedTextField.AbstractFormatter defaultFormat,
                     JFormattedTextField.AbstractFormatter displayFormat) {
        this(defaultFormat, displayFormat, null);
    }

    
Creates a DefaultFormatterFactory with the specified
JFormattedTextField.AbstractFormatters.

Params:
  • defaultFormat – JFormattedTextField.AbstractFormatter to be used
                     if a more specific
                     JFormattedTextField.AbstractFormatter can not be
                     found.
  • displayFormat – JFormattedTextField.AbstractFormatter to be used
                     when the JFormattedTextField does not have focus.
  • editFormat –    JFormattedTextField.AbstractFormatter to be used
                     when the JFormattedTextField has focus.
/**
     * Creates a DefaultFormatterFactory with the specified
     * JFormattedTextField.AbstractFormatters.
     *
     * @param defaultFormat JFormattedTextField.AbstractFormatter to be used
     *                      if a more specific
     *                      JFormattedTextField.AbstractFormatter can not be
     *                      found.
     * @param displayFormat JFormattedTextField.AbstractFormatter to be used
     *                      when the JFormattedTextField does not have focus.
     * @param editFormat    JFormattedTextField.AbstractFormatter to be used
     *                      when the JFormattedTextField has focus.
     */
    public DefaultFormatterFactory(
                   JFormattedTextField.AbstractFormatter defaultFormat,
                   JFormattedTextField.AbstractFormatter displayFormat,
                   JFormattedTextField.AbstractFormatter editFormat) {
        this(defaultFormat, displayFormat, editFormat, null);
    }

    
Creates a DefaultFormatterFactory with the specified
JFormattedTextField.AbstractFormatters.

Params:
  • defaultFormat – JFormattedTextField.AbstractFormatter to be used
                     if a more specific
                     JFormattedTextField.AbstractFormatter can not be
                     found.
  • displayFormat – JFormattedTextField.AbstractFormatter to be used
                     when the JFormattedTextField does not have focus.
  • editFormat –    JFormattedTextField.AbstractFormatter to be used
                     when the JFormattedTextField has focus.
  • nullFormat –    JFormattedTextField.AbstractFormatter to be used
                     when the JFormattedTextField has a null value.
/**
     * Creates a DefaultFormatterFactory with the specified
     * JFormattedTextField.AbstractFormatters.
     *
     * @param defaultFormat JFormattedTextField.AbstractFormatter to be used
     *                      if a more specific
     *                      JFormattedTextField.AbstractFormatter can not be
     *                      found.
     * @param displayFormat JFormattedTextField.AbstractFormatter to be used
     *                      when the JFormattedTextField does not have focus.
     * @param editFormat    JFormattedTextField.AbstractFormatter to be used
     *                      when the JFormattedTextField has focus.
     * @param nullFormat    JFormattedTextField.AbstractFormatter to be used
     *                      when the JFormattedTextField has a null value.
     */
    public DefaultFormatterFactory(
                  JFormattedTextField.AbstractFormatter defaultFormat,
                  JFormattedTextField.AbstractFormatter displayFormat,
                  JFormattedTextField.AbstractFormatter editFormat,
                  JFormattedTextField.AbstractFormatter nullFormat) {
        this.defaultFormat = defaultFormat;
        this.displayFormat = displayFormat;
        this.editFormat = editFormat;
        this.nullFormat = nullFormat;
    }

    
Sets the JFormattedTextField.AbstractFormatter to use as
a last resort, eg in case a display, edit or null
JFormattedTextField.AbstractFormatter has not been
specified.

Params:
  • atf – JFormattedTextField.AbstractFormatter used if a more
           specific is not specified
/**
     * Sets the <code>JFormattedTextField.AbstractFormatter</code> to use as
     * a last resort, eg in case a display, edit or null
     * <code>JFormattedTextField.AbstractFormatter</code> has not been
     * specified.
     *
     * @param atf JFormattedTextField.AbstractFormatter used if a more
     *            specific is not specified
     */
    public void setDefaultFormatter(JFormattedTextField.AbstractFormatter atf){
        defaultFormat = atf;
    }

    
Returns the JFormattedTextField.AbstractFormatter to use
as a last resort, eg in case a display, edit or null
JFormattedTextField.AbstractFormatter
has not been specified.

Returns:JFormattedTextField.AbstractFormatter used if a more specific
        one is not specified.
/**
     * Returns the <code>JFormattedTextField.AbstractFormatter</code> to use
     * as a last resort, eg in case a display, edit or null
     * <code>JFormattedTextField.AbstractFormatter</code>
     * has not been specified.
     *
     * @return JFormattedTextField.AbstractFormatter used if a more specific
     *         one is not specified.
     */
    public JFormattedTextField.AbstractFormatter getDefaultFormatter() {
        return defaultFormat;
    }

    
Sets the JFormattedTextField.AbstractFormatter to use if
the JFormattedTextField is not being edited and either
the value is not-null, or the value is null and a null formatter has
has not been specified.

Params:
  • atf – JFormattedTextField.AbstractFormatter to use when the
           JFormattedTextField does not have focus
/**
     * Sets the <code>JFormattedTextField.AbstractFormatter</code> to use if
     * the <code>JFormattedTextField</code> is not being edited and either
     * the value is not-null, or the value is null and a null formatter has
     * has not been specified.
     *
     * @param atf JFormattedTextField.AbstractFormatter to use when the
     *            JFormattedTextField does not have focus
     */
    public void setDisplayFormatter(JFormattedTextField.AbstractFormatter atf){
        displayFormat = atf;
    }

    
Returns the JFormattedTextField.AbstractFormatter to use
if the JFormattedTextField is not being edited and either
the value is not-null, or the value is null and a null formatter has
has not been specified.

Returns:JFormattedTextField.AbstractFormatter to use when the
        JFormattedTextField does not have focus
/**
     * Returns the <code>JFormattedTextField.AbstractFormatter</code> to use
     * if the <code>JFormattedTextField</code> is not being edited and either
     * the value is not-null, or the value is null and a null formatter has
     * has not been specified.
     *
     * @return JFormattedTextField.AbstractFormatter to use when the
     *         JFormattedTextField does not have focus
     */
    public JFormattedTextField.AbstractFormatter getDisplayFormatter() {
        return displayFormat;
    }

    
Sets the JFormattedTextField.AbstractFormatter to use if
the JFormattedTextField is being edited and either
the value is not-null, or the value is null and a null formatter has
has not been specified.

Params:
  • atf – JFormattedTextField.AbstractFormatter to use when the
           component has focus
/**
     * Sets the <code>JFormattedTextField.AbstractFormatter</code> to use if
     * the <code>JFormattedTextField</code> is being edited and either
     * the value is not-null, or the value is null and a null formatter has
     * has not been specified.
     *
     * @param atf JFormattedTextField.AbstractFormatter to use when the
     *            component has focus
     */
    public void setEditFormatter(JFormattedTextField.AbstractFormatter atf) {
        editFormat = atf;
    }

    
Returns the JFormattedTextField.AbstractFormatter to use
if the JFormattedTextField is being edited and either
the value is not-null, or the value is null and a null formatter has
has not been specified.

Returns:JFormattedTextField.AbstractFormatter to use when the
        component has focus
/**
     * Returns the <code>JFormattedTextField.AbstractFormatter</code> to use
     * if the <code>JFormattedTextField</code> is being edited and either
     * the value is not-null, or the value is null and a null formatter has
     * has not been specified.
     *
     * @return JFormattedTextField.AbstractFormatter to use when the
     *         component has focus
     */
    public JFormattedTextField.AbstractFormatter getEditFormatter() {
        return editFormat;
    }

    
Sets the formatter to use if the value of the JFormattedTextField is
null.

Params:
  • atf – JFormattedTextField.AbstractFormatter to use when
the value of the JFormattedTextField is null.
/**
     * Sets the formatter to use if the value of the JFormattedTextField is
     * null.
     *
     * @param atf JFormattedTextField.AbstractFormatter to use when
     * the value of the JFormattedTextField is null.
     */
    public void setNullFormatter(JFormattedTextField.AbstractFormatter atf) {
        nullFormat = atf;
    }

    
Returns the formatter to use if the value is null.

Returns:JFormattedTextField.AbstractFormatter to use when the value is
        null
/**
     * Returns the formatter to use if the value is null.
     *
     * @return JFormattedTextField.AbstractFormatter to use when the value is
     *         null
     */
    public JFormattedTextField.AbstractFormatter getNullFormatter() {
        return nullFormat;
    }

    
Returns either the default formatter, display formatter, editor
formatter or null formatter based on the state of the
JFormattedTextField.

Params:
  • source – JFormattedTextField requesting
              JFormattedTextField.AbstractFormatter
Returns:JFormattedTextField.AbstractFormatter to handle
        formatting duties.
/**
     * Returns either the default formatter, display formatter, editor
     * formatter or null formatter based on the state of the
     * JFormattedTextField.
     *
     * @param source JFormattedTextField requesting
     *               JFormattedTextField.AbstractFormatter
     * @return JFormattedTextField.AbstractFormatter to handle
     *         formatting duties.
     */
    public JFormattedTextField.AbstractFormatter getFormatter(
                     JFormattedTextField source) {
        JFormattedTextField.AbstractFormatter format = null;

        if (source == null) {
            return null;
        }
        Object value = source.getValue();

        if (value == null) {
            format = getNullFormatter();
        }
        if (format == null) {
            if (source.hasFocus()) {
                format = getEditFormatter();
            }
            else {
                format = getDisplayFormatter();
            }
            if (format == null) {
                format = getDefaultFormatter();
            }
        }
        return format;
    }
}