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/*
* @(#)IPathHistory.java
*
* Copyright (C) 2002-2003 Matt Albrecht
* groboclown@users.sourceforge.net
* http://groboutils.sourceforge.net
*
* Part of the GroboUtils package at:
* http://groboutils.sourceforge.net
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package net.sourceforge.groboutils.mbtf.v1;
/**
* Records the states and transition history during a path traversal.
* The instance can be cloned for the cases of errors and warnings needing to
* store the path history when they occured. The instance should also support
* a toString() method for easy debugging and logging.
*
* @author Matt Albrecht <a href="mailto:groboclown@users.sourceforge.net">groboclown@users.sourceforge.net</a>
* @version $Date: 2003/02/10 22:52:24 $
* @since June 12, 2002
*/
public interface IPathHistory
{
/**
* When the current state changes, add the new state here. This should
* be called for the start state, and once at the end of every successful
* transition.
*/
public void addState( IState s );
/**
* When a transition is about to occur, it should be added here.
*/
public void addTransition( ITransition t );
/**
* After a validation call, the error results should be added here.
*/
public void addValidate( IValidate val, IState owningState,
IErrors errors );
/**
* After a validation call, the error results should be added here.
*/
public void addValidate( IValidate val, ITransition owningTransition,
IErrors errors );
/**
* Returns the total number of errors (halts, failures, and errors)
* registered during validation and transitions.
*/
public int getErrorCount();
/**
* Returns a copy of this instance. The copied instance must not change
* when the parent copy changes.
*/
public IPathHistory copy();
}
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