/**
* Copyright (C) 2011 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.analytics.financial.interestrate.bond.calculator;
import com.opengamma.analytics.financial.interestrate.InstrumentDerivativeVisitorAdapter;
import com.opengamma.analytics.financial.interestrate.bond.definition.BondFixedSecurity;
import com.opengamma.analytics.financial.interestrate.bond.provider.BondSecurityDiscountingMethod;
import com.opengamma.util.ArgumentChecker;
/**
* Calculate modified duration from the yield.
*/
public final class ModifiedDurationFromYieldCalculator extends InstrumentDerivativeVisitorAdapter<Double, Double> {
/**
* The calculator instance.
*/
private static final ModifiedDurationFromYieldCalculator s_instance = new ModifiedDurationFromYieldCalculator();
/**
* Return the calculator instance.
* @return The instance.
*/
public static ModifiedDurationFromYieldCalculator getInstance() {
return s_instance;
}
/**
* Private constructor.
*/
private ModifiedDurationFromYieldCalculator() {
}
@Override
public Double visitBondFixedSecurity(final BondFixedSecurity bond, final Double yield) {
ArgumentChecker.notNull(bond, "bond");
ArgumentChecker.notNull(yield, "yield");
final BondSecurityDiscountingMethod method = BondSecurityDiscountingMethod.getInstance();
return method.modifiedDurationFromYield(bond, yield);
}
}