Java tutorial
/** * 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.definition; import org.apache.commons.lang.ObjectUtils; import org.apache.commons.lang.Validate; import com.opengamma.analytics.financial.interestrate.InstrumentDerivative; import com.opengamma.analytics.financial.interestrate.payments.derivative.Payment; /** * Describes a transaction on a generic single currency bond issue. * @param <B> The underlying bond type. */ public abstract class BondTransaction<B extends BondSecurity<? extends Payment, ? extends Payment>> implements InstrumentDerivative { /** * The bond underlying the transaction. All the nominal payment and coupon relevant to the transaction and only them are included in the bond. * The bond may not be suitable for standard price and yield calculation (some coupon may be missing or added). In particular, the bond * may not have settlement meaningful spot time. */ private final B _bondPurchased; /** * The transaction quoted price. The price meaning will depend on the bond type (Fixed coupon, FRN, Inflation bond). */ private final double _transactionPrice; /** * The number of bonds purchased (can be negative or positive). */ private final double _quantity; /** * Description of the underlying bond with standard settlement date. Used for clean/dirty price calculation. */ private final B _bondStandard; /** * The notional at the standard spot time. */ private final double _notionalStandard; /** * Bond transaction constructor from the transaction details. * @param bondPurchased The bond underlying the transaction. * @param quantity The number of bonds purchased (can be negative or positive). * @param transactionPrice The transaction quoted price. * @param bondStandard Description of the underlying bond with standard settlement date. * @param notionalStandard The notional at the standard spot time. */ public BondTransaction(B bondPurchased, double quantity, double transactionPrice, B bondStandard, double notionalStandard) { Validate.notNull(bondPurchased, "Bond underlying the transaction"); Validate.notNull(transactionPrice, "Price"); Validate.notNull(bondStandard, "Bond underlying with standard settlement date"); // TODO: Check coherence of bond with settlement. _bondPurchased = bondPurchased; _quantity = quantity; _transactionPrice = transactionPrice; _bondStandard = bondStandard; _notionalStandard = notionalStandard; } /** * Gets the bond underlying the transaction. * @return The bond underlying the transaction. */ public B getBondTransaction() { return _bondPurchased; } /** * Gets the number of bonds purchased (can be negative or positive). * @return The number of bonds purchased. */ public double getQuantity() { return _quantity; } /** * Gets Description of the underlying bond with standard settlement date. Used for clean/dirty price calculation. * @return The bond with standard settlement date. */ public B getBondStandard() { return _bondStandard; } /** * Gets the notional at the standard spot time. * @return The notional standard. */ public double getNotionalStandard() { return _notionalStandard; } /** * Gets the transaction price. * @return The price. */ public double getTransactionPrice() { return _transactionPrice; } @Override public String toString() { String result = "Bond Transaction: Quantity=" + _quantity + ", Notional std=" + _notionalStandard + "\n"; result += "Price: " + _transactionPrice + "\n"; result += "Underlying: " + _bondPurchased.toString() + "\n"; result += "Standard: " + _bondStandard.toString(); return result; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + _bondPurchased.hashCode(); result = prime * result + _bondStandard.hashCode(); long temp; temp = Double.doubleToLongBits(_notionalStandard); result = prime * result + (int) (temp ^ (temp >>> 32)); temp = Double.doubleToLongBits(_quantity); result = prime * result + (int) (temp ^ (temp >>> 32)); return result; } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj == null) { return false; } if (getClass() != obj.getClass()) { return false; } BondTransaction<?> other = (BondTransaction<?>) obj; if (!ObjectUtils.equals(_bondPurchased, other._bondPurchased)) { return false; } if (!ObjectUtils.equals(_bondStandard, other._bondStandard)) { return false; } if (Double.doubleToLongBits(_notionalStandard) != Double.doubleToLongBits(other._notionalStandard)) { return false; } if (Double.doubleToLongBits(_quantity) != Double.doubleToLongBits(other._quantity)) { return false; } return true; } }