it.tidalwave.util.ui.FormModel Maven / Gradle / Ivy

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/***********************************************************************************************************************
 *
 * blueBill Mobile - Android - open source birding
 * Copyright (C) 2009-2011 by Tidalwave s.a.s. (http://www.tidalwave.it)
 *
 ***********************************************************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 *
 ***********************************************************************************************************************
 *
 * WWW: http://bluebill.tidalwave.it/mobile
 * SCM: https://java.net/hg/bluebill-mobile~android-src
 *
 **********************************************************************************************************************/
package it.tidalwave.util.ui;

import javax.annotation.Nonnull;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.Getter;

/***********************************************************************************************************************
 *
 * @author  Fabrizio Giudici
 * @version $Id$
 *
 **********************************************************************************************************************/
public class FormModel 
  {
    private static final Logger log = LoggerFactory.getLogger(FormProperty.class);
    
    public static final String PROP_VALID = "valid";
    
    @Getter
    private boolean valid = false;
    
    private final PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);

    /*******************************************************************************************************************
     *
     *
     ******************************************************************************************************************/
    protected void revalidate() 
      {
      }
    
    /*******************************************************************************************************************
     *
     *
     ******************************************************************************************************************/
    protected void setValid (final boolean valid) 
      {
        log.trace("{}.setValid({})", this, valid);
        final boolean oldValid = this.valid;
        this.valid = valid;
        propertyChangeSupport.firePropertyChange(PROP_VALID, oldValid, valid);
      }

    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     *
     ******************************************************************************************************************/
    public synchronized void addPropertyChangeListener (final @Nonnull PropertyChangeListener listener)
      {
        propertyChangeSupport.addPropertyChangeListener(listener);
      }
        
    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     *
     ******************************************************************************************************************/
    public synchronized void addPropertyChangeListener (final @Nonnull String propertyName,   
                                                        final @Nonnull PropertyChangeListener listener) 
      {
        propertyChangeSupport.addPropertyChangeListener(propertyName, listener);
      }

    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     *
     ******************************************************************************************************************/
    public synchronized void removePropertyChangeListener (final @Nonnull PropertyChangeListener listener)
      {
        propertyChangeSupport.removePropertyChangeListener(listener);
      }

    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     *
     ******************************************************************************************************************/
    public synchronized void removePropertyChangeListener (final @Nonnull String propertyName,
                                                           final @Nonnull PropertyChangeListener listener) 
      {
        propertyChangeSupport.removePropertyChangeListener(propertyName, listener);
      }

    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     *
     ******************************************************************************************************************/
    public synchronized boolean hasListeners (final @Nonnull String propertyName) 
      {
        return propertyChangeSupport.hasListeners(propertyName);
      }

    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     *
     ******************************************************************************************************************/
    @Nonnull
    public synchronized PropertyChangeListener[] getPropertyChangeListeners()
      {
        return propertyChangeSupport.getPropertyChangeListeners();
      }

    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     *
     ******************************************************************************************************************/
    @Nonnull
    public synchronized PropertyChangeListener[] getPropertyChangeListeners (final @Nonnull String propertyName)  
      {
        return propertyChangeSupport.getPropertyChangeListeners(propertyName);
      }    
  }