content: package com.japisoft.framework.wizard;
  
  /**
  This program is available under two licenses : 
  
  1. For non commercial usage : 
  
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
  
  This program 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 for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  2. For commercial usage :
  
  You need to get a commercial license for source usage at : 
  
  http://www.editix.com/buy.html
  
  Copyright (c) 2018 Alexandre Brillant - JAPISOFT SARL - http://www.japisoft.com
  
  @author Alexandre Brillant - abrillant@japisoft.com
  @author JAPISOFT SARL - http://www.japisoft.com
  
  */
  public interface WizardStepContext {
  
  	/** @return the main component, user can access to other wizard step using the <code>WizardStepModel</code> */
  	public JWizard getSource();
  
  	/** @return the previous step or <code>null</code> for the first wizard step */
  	public WizardStep getPreviousWizardStep();
  
  	/** @return the next step or <code>null</code> for the last wizard step */
  	public WizardStep getNextWizardStep();
  
  	/** Force the wizard to go the following step */
  	public void goTo( WizardStep step );
  	
  	/** Notify the main wizard component that the next step is accessible. By default the next
  		step is never accessible without calling acceptNext( true ) */
  	public void acceptNext( boolean accept );
  
  	/** Notify the main wizard component that the previous step is accessible. By default the
  		previous step is always accessible */ 
  	public void acceptPrevious( boolean accept );
  
  	/** Store a data, this value will be available for all the wizard next step and user can retreive
  		these values on the JWizard component */
  	public void setSharedData( String key, Object data );
  
  	/** Get a value. This value has been set by previous wizard step */
  	public Object getSharedData( String key );
  
  	/** Get a value. This value has been set by previous wizard step
  	 * @param key the Shared data key
  	 * @param defaultValue the value returned if the key is unknown
  	 *  */
  	public Object getSharedData( String key, Object defaultValue );
  
  }
  