/*
 Copyright (C) 2007 Richard Gomes

 This source code is release under the BSD License.

 This file is part of JQuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://jquantlib.org/

 JQuantLib is free software: you can redistribute it and/or modify it
 under the terms of the JQuantLib license.  You should have received a
 copy of the license along with this program; if not, please email
 . The license is also available online at
 .

 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 license for more details.

 JQuantLib is based on QuantLib. http://quantlib.org/
 When applicable, the original copyright notice follows this notice.
 */

/*
 Copyright (C) 2004 Ferdinando Ametrano
 Copyright (C) 2000, 2001, 2002, 2003 RiskMap srl

 This file is part of QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/

 QuantLib is free software: you can redistribute it and/or modify it
 under the terms of the QuantLib license.  You should have received a
 copy of the license along with this program; if not, please email
 . The license is also available online at
 .

 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 license for more details.
*/

package org.jquantlib.daycounters;

import org.jquantlib.lang.annotation.QualityAssurance;
import org.jquantlib.lang.annotation.QualityAssurance.Quality;
import org.jquantlib.lang.annotation.QualityAssurance.Version;
import org.jquantlib.time.Date;

/**
 * "Actual/365 (Fixed)" day count convention, also know as
 * "Act/365 (Fixed)", "A/365 (Fixed)", or "A/365F".
 *
 * @note According to ISDA, "Actual/365" (without "Fixed") is
 * an alias for "Actual/Actual (ISDA)"DayCounter (see
 * ActualActual.)  If Actual/365 is not explicitly
 * specified as fixed in an instrument specification,
 * you might want to double-check its meaning.
 *
 * @author Srinivas Hasti
 * @author Richard Gomes
 */
@QualityAssurance(quality=Quality.Q4_UNIT, version=Version.V097, reviewers="Richard Gomes")
public class Actual365Fixed extends DayCounter {


    public Actual365Fixed() {
        super.impl = new Impl();
    }


    //
    // private inner classes
    //

    final private class Impl extends DayCounter.Impl {

        //
        // implements DayCounter
        //

        @Override
        public final String name() /* @ReadOnly */{
            return "Actual/365 (fixed)";
        }

        @Override
        public /*@Time*/ final double yearFraction(
                final Date dateStart, final Date dateEnd,
                final Date refPeriodStart, final Date refPeriodEnd) /* @ReadOnly */{
            return /*@Time*/ dayCount(dateStart, dateEnd)/365.0;
        }

    }

}