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/*
* ====================================================================
* Project: openMDX, http://www.openmdx.org/
* Description: Boundary Crossing
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2008, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by other organizations as
* listed in the NOTICE file.
*/
package org.openmdx.state2.aop1;
/**
* Boundary Crossing
*/
enum BoundaryCrossing {
NONE (false,false),
STARTS_EARLIER (true,false),
ENDS_LATER (false, true),
STARTS_EARLIER_AND_ENDS_LATER (true, true);
/**
* true if a boundary crossing takes place at the beginning
*/
final boolean startsEarlier;
/**
* true if a boundary crossing takes place at the end
*/
final boolean endsLater;
/**
* Constructor
*
* @param startsEarlier
* @param endsLater
*/
private BoundaryCrossing(
boolean startsEarlier,
boolean endsLater
){
this.startsEarlier = startsEarlier;
this.endsLater = endsLater;
}
/**
* Retrieve the appropriate instance
*
* @param startsEarlier
* @param endsLater
*
* @return the appropriate instance
*/
static BoundaryCrossing valueOf(
boolean startsEarlier,
boolean endsLater
){
return startsEarlier ? (
endsLater ? STARTS_EARLIER_AND_ENDS_LATER : STARTS_EARLIER
) : (
endsLater ? ENDS_LATER : NONE
);
}
}
