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/*
* Copyright (C) 2014 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.strata.product.swap;
import static com.google.common.base.MoreObjects.firstNonNull;
import static com.opengamma.strata.basics.value.ValueSchedule.ALWAYS_0;
import static com.opengamma.strata.basics.value.ValueSchedule.ALWAYS_1;
import java.io.Serializable;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Optional;
import org.joda.beans.Bean;
import org.joda.beans.ImmutableBean;
import org.joda.beans.JodaBeanUtils;
import org.joda.beans.MetaBean;
import org.joda.beans.MetaProperty;
import org.joda.beans.gen.BeanDefinition;
import org.joda.beans.gen.ImmutableDefaults;
import org.joda.beans.gen.ImmutablePreBuild;
import org.joda.beans.gen.PropertyDefinition;
import org.joda.beans.impl.direct.DirectFieldsBeanBuilder;
import org.joda.beans.impl.direct.DirectMetaBean;
import org.joda.beans.impl.direct.DirectMetaProperty;
import org.joda.beans.impl.direct.DirectMetaPropertyMap;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.opengamma.strata.basics.ReferenceData;
import com.opengamma.strata.basics.currency.Currency;
import com.opengamma.strata.basics.date.DayCount;
import com.opengamma.strata.basics.index.Index;
import com.opengamma.strata.basics.index.OvernightIndex;
import com.opengamma.strata.basics.schedule.Schedule;
import com.opengamma.strata.basics.schedule.SchedulePeriod;
import com.opengamma.strata.basics.value.ValueSchedule;
import com.opengamma.strata.collect.ArgChecker;
import com.opengamma.strata.collect.array.DoubleArray;
import com.opengamma.strata.product.rate.OvernightRateComputation;
import com.opengamma.strata.product.rate.RateComputation;
/**
* Defines the calculation of a floating rate swap leg based on an Overnight index.
*
* This defines the data necessary to calculate the amount payable on the leg.
* The amount is based on the observed value of an Overnight index such as 'GBP-SONIA' or 'USD-FED-FUND'.
*
* The index is observed for each business day and averaged or compounded to produce a rate.
* The reset periods correspond to each business day and are inferred from the accrual period dates.
*/
@BeanDefinition
public final class OvernightRateCalculation
implements RateCalculation, ImmutableBean, Serializable {
/**
* The day count convention.
*
* This is used to convert dates to a numerical value.
*
* When building, this will default to the day count of the index if not specified.
*/
@PropertyDefinition(validate = "notNull", overrideGet = true)
private final DayCount dayCount;
/**
* The Overnight index.
*
* The rate to be paid is based on this index
* It will be a well known market index such as 'GBP-SONIA'.
*/
@PropertyDefinition(validate = "notNull")
private final OvernightIndex index;
/**
* The method of accruing overnight interest, defaulted to 'Compounded'.
*
* Two methods of accrual are supported - compounding and averaging.
* Averaging is primarily related to the 'USD-FED-FUND' index.
*/
@PropertyDefinition(validate = "notNull")
private final OvernightAccrualMethod accrualMethod;
/**
* The negative rate method, defaulted to 'AllowNegative'.
*
* This is used when the interest rate, observed or calculated, goes negative.
* It does not apply if the rate is fixed, such as in a stub or using {@code firstRegularRate}.
*
* Defined by the 2006 ISDA definitions article 6.4.
*/
@PropertyDefinition(validate = "notNull")
private final NegativeRateMethod negativeRateMethod;
/**
* The number of business days before the end of the period that the rate is cut off, defaulted to zero.
*
* When a rate cut-off applies, the final daily rate is determined this number of days
* before the end of the period, with any subsequent days having the same rate.
*
* The amount must be zero or positive.
* A value of zero or one will have no effect on the standard calculation.
* The fixing holiday calendar of the index is used to determine business days.
*
* For example, a value of {@code 3} means that the rate observed on
* {@code (periodEndDate - 3 business days)} is also to be used on
* {@code (periodEndDate - 2 business days)} and {@code (periodEndDate - 1 business day)}.
*
* If there are multiple accrual periods in the payment period, then this
* will only apply to the last accrual period in the payment period.
*/
@PropertyDefinition(validate = "ArgChecker.notNegative")
private final int rateCutOffDays;
/**
* The gearing multiplier, optional.
*
* This defines the gearing as an initial value and a list of adjustments.
* The gearing is only permitted to change at accrual period boundaries.
*
* When calculating the rate, the fixing rate is multiplied by the gearing.
* A gearing of 1 has no effect.
* If both gearing and spread exist, then the gearing is applied first.
*
* If this property is not present, then no gearing applies.
*
* Gearing is also known as leverage.
*/
@PropertyDefinition(get = "optional")
private final ValueSchedule gearing;
/**
* The spread rate, optional.
* A 5% rate will be expressed as 0.05.
*
* This defines the spread as an initial value and a list of adjustments.
* The spread is only permitted to change at accrual period boundaries.
* Spread is a per annum rate.
*
* When calculating the rate, the spread is added to the fixing rate.
* A spread of 0 has no effect.
* If both gearing and spread exist, then the gearing is applied first.
*
* If this property is not present, then no spread applies.
*
* Defined by the 2006 ISDA definitions article 6.2e.
*/
@PropertyDefinition(get = "optional")
private final ValueSchedule spread;
//-------------------------------------------------------------------------
/**
* Obtains a rate calculation for the specified index with accrual by compounding.
*
* The calculation will use the day count of the index.
* All optional fields will be set to their default values.
* Thus, there will be no spread, gearing or rate cut-off.
* If this method provides insufficient control, use the {@linkplain #builder() builder}.
*
* @param index the index
* @return the calculation
*/
public static OvernightRateCalculation of(OvernightIndex index) {
return OvernightRateCalculation.builder().index(index).build();
}
//-------------------------------------------------------------------------
@ImmutableDefaults
private static void applyDefaults(Builder builder) {
builder.accrualMethod(OvernightAccrualMethod.COMPOUNDED);
builder.negativeRateMethod(NegativeRateMethod.ALLOW_NEGATIVE);
}
@ImmutablePreBuild
private static void preBuild(Builder builder) {
if (builder.index != null) {
if (builder.dayCount == null) {
builder.dayCount = builder.index.getDayCount();
}
}
}
//-------------------------------------------------------------------------
@Override
public SwapLegType getType() {
return SwapLegType.OVERNIGHT;
}
@Override
public void collectCurrencies(ImmutableSet.Builder builder) {
builder.add(index.getCurrency());
}
@Override
public void collectIndices(ImmutableSet.Builder builder) {
builder.add(index);
}
@Override
public ImmutableList createAccrualPeriods(
Schedule accrualSchedule,
Schedule paymentSchedule,
ReferenceData refData) {
// resolve data by schedule
DoubleArray resolvedGearings = firstNonNull(gearing, ALWAYS_1).resolveValues(accrualSchedule);
DoubleArray resolvedSpreads = firstNonNull(spread, ALWAYS_0).resolveValues(accrualSchedule);
// build accrual periods
ImmutableList.Builder accrualPeriods = ImmutableList.builder();
for (int i = 0; i < accrualSchedule.size(); i++) {
SchedulePeriod period = accrualSchedule.getPeriod(i);
double yearFraction = period.yearFraction(dayCount, accrualSchedule);
RateComputation rateComputation = createRateComputation(period, paymentSchedule, refData);
accrualPeriods.add(new RateAccrualPeriod(
period, yearFraction, rateComputation, resolvedGearings.get(i), resolvedSpreads.get(i), negativeRateMethod));
}
return accrualPeriods.build();
}
// creates the rate computation
private RateComputation createRateComputation(SchedulePeriod period, Schedule paymentSchedule, ReferenceData refData) {
int effectiveRateCutOffDaysOffset = (isLastAccrualInPaymentPeriod(period, paymentSchedule) ? rateCutOffDays : 0);
return OvernightRateComputation.of(
index,
period.getStartDate(),
period.getEndDate(),
effectiveRateCutOffDaysOffset,
accrualMethod,
refData);
}
// rate cut-off only applies to the last accrual period in a payment period
private boolean isLastAccrualInPaymentPeriod(SchedulePeriod period, Schedule paymentSchedule) {
if (rateCutOffDays == 0) {
return true;
}
return paymentSchedule.getPeriods().stream()
.anyMatch(pp -> pp.getUnadjustedEndDate().equals(period.getUnadjustedEndDate()));
}
//------------------------- AUTOGENERATED START -------------------------
/**
* The meta-bean for {@code OvernightRateCalculation}.
* @return the meta-bean, not null
*/
public static OvernightRateCalculation.Meta meta() {
return OvernightRateCalculation.Meta.INSTANCE;
}
static {
MetaBean.register(OvernightRateCalculation.Meta.INSTANCE);
}
/**
* The serialization version id.
*/
private static final long serialVersionUID = 1L;
/**
* Returns a builder used to create an instance of the bean.
* @return the builder, not null
*/
public static OvernightRateCalculation.Builder builder() {
return new OvernightRateCalculation.Builder();
}
private OvernightRateCalculation(
DayCount dayCount,
OvernightIndex index,
OvernightAccrualMethod accrualMethod,
NegativeRateMethod negativeRateMethod,
int rateCutOffDays,
ValueSchedule gearing,
ValueSchedule spread) {
JodaBeanUtils.notNull(dayCount, "dayCount");
JodaBeanUtils.notNull(index, "index");
JodaBeanUtils.notNull(accrualMethod, "accrualMethod");
JodaBeanUtils.notNull(negativeRateMethod, "negativeRateMethod");
ArgChecker.notNegative(rateCutOffDays, "rateCutOffDays");
this.dayCount = dayCount;
this.index = index;
this.accrualMethod = accrualMethod;
this.negativeRateMethod = negativeRateMethod;
this.rateCutOffDays = rateCutOffDays;
this.gearing = gearing;
this.spread = spread;
}
@Override
public OvernightRateCalculation.Meta metaBean() {
return OvernightRateCalculation.Meta.INSTANCE;
}
//-----------------------------------------------------------------------
/**
* Gets the day count convention.
*
* This is used to convert dates to a numerical value.
*
* When building, this will default to the day count of the index if not specified.
* @return the value of the property, not null
*/
@Override
public DayCount getDayCount() {
return dayCount;
}
//-----------------------------------------------------------------------
/**
* Gets the Overnight index.
*
* The rate to be paid is based on this index
* It will be a well known market index such as 'GBP-SONIA'.
* @return the value of the property, not null
*/
public OvernightIndex getIndex() {
return index;
}
//-----------------------------------------------------------------------
/**
* Gets the method of accruing overnight interest, defaulted to 'Compounded'.
*
* Two methods of accrual are supported - compounding and averaging.
* Averaging is primarily related to the 'USD-FED-FUND' index.
* @return the value of the property, not null
*/
public OvernightAccrualMethod getAccrualMethod() {
return accrualMethod;
}
//-----------------------------------------------------------------------
/**
* Gets the negative rate method, defaulted to 'AllowNegative'.
*
* This is used when the interest rate, observed or calculated, goes negative.
* It does not apply if the rate is fixed, such as in a stub or using {@code firstRegularRate}.
*
* Defined by the 2006 ISDA definitions article 6.4.
* @return the value of the property, not null
*/
public NegativeRateMethod getNegativeRateMethod() {
return negativeRateMethod;
}
//-----------------------------------------------------------------------
/**
* Gets the number of business days before the end of the period that the rate is cut off, defaulted to zero.
*
* When a rate cut-off applies, the final daily rate is determined this number of days
* before the end of the period, with any subsequent days having the same rate.
*
* The amount must be zero or positive.
* A value of zero or one will have no effect on the standard calculation.
* The fixing holiday calendar of the index is used to determine business days.
*
* For example, a value of {@code 3} means that the rate observed on
* {@code (periodEndDate - 3 business days)} is also to be used on
* {@code (periodEndDate - 2 business days)} and {@code (periodEndDate - 1 business day)}.
*
* If there are multiple accrual periods in the payment period, then this
* will only apply to the last accrual period in the payment period.
* @return the value of the property
*/
public int getRateCutOffDays() {
return rateCutOffDays;
}
//-----------------------------------------------------------------------
/**
* Gets the gearing multiplier, optional.
*
* This defines the gearing as an initial value and a list of adjustments.
* The gearing is only permitted to change at accrual period boundaries.
*
* When calculating the rate, the fixing rate is multiplied by the gearing.
* A gearing of 1 has no effect.
* If both gearing and spread exist, then the gearing is applied first.
*
* If this property is not present, then no gearing applies.
*
* Gearing is also known as leverage.
* @return the optional value of the property, not null
*/
public Optional getGearing() {
return Optional.ofNullable(gearing);
}
//-----------------------------------------------------------------------
/**
* Gets the spread rate, optional.
* A 5% rate will be expressed as 0.05.
*
* This defines the spread as an initial value and a list of adjustments.
* The spread is only permitted to change at accrual period boundaries.
* Spread is a per annum rate.
*
* When calculating the rate, the spread is added to the fixing rate.
* A spread of 0 has no effect.
* If both gearing and spread exist, then the gearing is applied first.
*
* If this property is not present, then no spread applies.
*
* Defined by the 2006 ISDA definitions article 6.2e.
* @return the optional value of the property, not null
*/
public Optional getSpread() {
return Optional.ofNullable(spread);
}
//-----------------------------------------------------------------------
/**
* Returns a builder that allows this bean to be mutated.
* @return the mutable builder, not null
*/
public Builder toBuilder() {
return new Builder(this);
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj != null && obj.getClass() == this.getClass()) {
OvernightRateCalculation other = (OvernightRateCalculation) obj;
return JodaBeanUtils.equal(dayCount, other.dayCount) &&
JodaBeanUtils.equal(index, other.index) &&
JodaBeanUtils.equal(accrualMethod, other.accrualMethod) &&
JodaBeanUtils.equal(negativeRateMethod, other.negativeRateMethod) &&
(rateCutOffDays == other.rateCutOffDays) &&
JodaBeanUtils.equal(gearing, other.gearing) &&
JodaBeanUtils.equal(spread, other.spread);
}
return false;
}
@Override
public int hashCode() {
int hash = getClass().hashCode();
hash = hash * 31 + JodaBeanUtils.hashCode(dayCount);
hash = hash * 31 + JodaBeanUtils.hashCode(index);
hash = hash * 31 + JodaBeanUtils.hashCode(accrualMethod);
hash = hash * 31 + JodaBeanUtils.hashCode(negativeRateMethod);
hash = hash * 31 + JodaBeanUtils.hashCode(rateCutOffDays);
hash = hash * 31 + JodaBeanUtils.hashCode(gearing);
hash = hash * 31 + JodaBeanUtils.hashCode(spread);
return hash;
}
@Override
public String toString() {
StringBuilder buf = new StringBuilder(256);
buf.append("OvernightRateCalculation{");
buf.append("dayCount").append('=').append(JodaBeanUtils.toString(dayCount)).append(',').append(' ');
buf.append("index").append('=').append(JodaBeanUtils.toString(index)).append(',').append(' ');
buf.append("accrualMethod").append('=').append(JodaBeanUtils.toString(accrualMethod)).append(',').append(' ');
buf.append("negativeRateMethod").append('=').append(JodaBeanUtils.toString(negativeRateMethod)).append(',').append(' ');
buf.append("rateCutOffDays").append('=').append(JodaBeanUtils.toString(rateCutOffDays)).append(',').append(' ');
buf.append("gearing").append('=').append(JodaBeanUtils.toString(gearing)).append(',').append(' ');
buf.append("spread").append('=').append(JodaBeanUtils.toString(spread));
buf.append('}');
return buf.toString();
}
//-----------------------------------------------------------------------
/**
* The meta-bean for {@code OvernightRateCalculation}.
*/
public static final class Meta extends DirectMetaBean {
/**
* The singleton instance of the meta-bean.
*/
static final Meta INSTANCE = new Meta();
/**
* The meta-property for the {@code dayCount} property.
*/
private final MetaProperty dayCount = DirectMetaProperty.ofImmutable(
this, "dayCount", OvernightRateCalculation.class, DayCount.class);
/**
* The meta-property for the {@code index} property.
*/
private final MetaProperty index = DirectMetaProperty.ofImmutable(
this, "index", OvernightRateCalculation.class, OvernightIndex.class);
/**
* The meta-property for the {@code accrualMethod} property.
*/
private final MetaProperty accrualMethod = DirectMetaProperty.ofImmutable(
this, "accrualMethod", OvernightRateCalculation.class, OvernightAccrualMethod.class);
/**
* The meta-property for the {@code negativeRateMethod} property.
*/
private final MetaProperty negativeRateMethod = DirectMetaProperty.ofImmutable(
this, "negativeRateMethod", OvernightRateCalculation.class, NegativeRateMethod.class);
/**
* The meta-property for the {@code rateCutOffDays} property.
*/
private final MetaProperty rateCutOffDays = DirectMetaProperty.ofImmutable(
this, "rateCutOffDays", OvernightRateCalculation.class, Integer.TYPE);
/**
* The meta-property for the {@code gearing} property.
*/
private final MetaProperty gearing = DirectMetaProperty.ofImmutable(
this, "gearing", OvernightRateCalculation.class, ValueSchedule.class);
/**
* The meta-property for the {@code spread} property.
*/
private final MetaProperty spread = DirectMetaProperty.ofImmutable(
this, "spread", OvernightRateCalculation.class, ValueSchedule.class);
/**
* The meta-properties.
*/
private final Map> metaPropertyMap$ = new DirectMetaPropertyMap(
this, null,
"dayCount",
"index",
"accrualMethod",
"negativeRateMethod",
"rateCutOffDays",
"gearing",
"spread");
/**
* Restricted constructor.
*/
private Meta() {
}
@Override
protected MetaProperty metaPropertyGet(String propertyName) {
switch (propertyName.hashCode()) {
case 1905311443: // dayCount
return dayCount;
case 100346066: // index
return index;
case -1335729296: // accrualMethod
return accrualMethod;
case 1969081334: // negativeRateMethod
return negativeRateMethod;
case -92095804: // rateCutOffDays
return rateCutOffDays;
case -91774989: // gearing
return gearing;
case -895684237: // spread
return spread;
}
return super.metaPropertyGet(propertyName);
}
@Override
public OvernightRateCalculation.Builder builder() {
return new OvernightRateCalculation.Builder();
}
@Override
public Class beanType() {
return OvernightRateCalculation.class;
}
@Override
public Map> metaPropertyMap() {
return metaPropertyMap$;
}
//-----------------------------------------------------------------------
/**
* The meta-property for the {@code dayCount} property.
* @return the meta-property, not null
*/
public MetaProperty dayCount() {
return dayCount;
}
/**
* The meta-property for the {@code index} property.
* @return the meta-property, not null
*/
public MetaProperty index() {
return index;
}
/**
* The meta-property for the {@code accrualMethod} property.
* @return the meta-property, not null
*/
public MetaProperty accrualMethod() {
return accrualMethod;
}
/**
* The meta-property for the {@code negativeRateMethod} property.
* @return the meta-property, not null
*/
public MetaProperty negativeRateMethod() {
return negativeRateMethod;
}
/**
* The meta-property for the {@code rateCutOffDays} property.
* @return the meta-property, not null
*/
public MetaProperty rateCutOffDays() {
return rateCutOffDays;
}
/**
* The meta-property for the {@code gearing} property.
* @return the meta-property, not null
*/
public MetaProperty gearing() {
return gearing;
}
/**
* The meta-property for the {@code spread} property.
* @return the meta-property, not null
*/
public MetaProperty spread() {
return spread;
}
//-----------------------------------------------------------------------
@Override
protected Object propertyGet(Bean bean, String propertyName, boolean quiet) {
switch (propertyName.hashCode()) {
case 1905311443: // dayCount
return ((OvernightRateCalculation) bean).getDayCount();
case 100346066: // index
return ((OvernightRateCalculation) bean).getIndex();
case -1335729296: // accrualMethod
return ((OvernightRateCalculation) bean).getAccrualMethod();
case 1969081334: // negativeRateMethod
return ((OvernightRateCalculation) bean).getNegativeRateMethod();
case -92095804: // rateCutOffDays
return ((OvernightRateCalculation) bean).getRateCutOffDays();
case -91774989: // gearing
return ((OvernightRateCalculation) bean).gearing;
case -895684237: // spread
return ((OvernightRateCalculation) bean).spread;
}
return super.propertyGet(bean, propertyName, quiet);
}
@Override
protected void propertySet(Bean bean, String propertyName, Object newValue, boolean quiet) {
metaProperty(propertyName);
if (quiet) {
return;
}
throw new UnsupportedOperationException("Property cannot be written: " + propertyName);
}
}
//-----------------------------------------------------------------------
/**
* The bean-builder for {@code OvernightRateCalculation}.
*/
public static final class Builder extends DirectFieldsBeanBuilder {
private DayCount dayCount;
private OvernightIndex index;
private OvernightAccrualMethod accrualMethod;
private NegativeRateMethod negativeRateMethod;
private int rateCutOffDays;
private ValueSchedule gearing;
private ValueSchedule spread;
/**
* Restricted constructor.
*/
private Builder() {
applyDefaults(this);
}
/**
* Restricted copy constructor.
* @param beanToCopy the bean to copy from, not null
*/
private Builder(OvernightRateCalculation beanToCopy) {
this.dayCount = beanToCopy.getDayCount();
this.index = beanToCopy.getIndex();
this.accrualMethod = beanToCopy.getAccrualMethod();
this.negativeRateMethod = beanToCopy.getNegativeRateMethod();
this.rateCutOffDays = beanToCopy.getRateCutOffDays();
this.gearing = beanToCopy.gearing;
this.spread = beanToCopy.spread;
}
//-----------------------------------------------------------------------
@Override
public Object get(String propertyName) {
switch (propertyName.hashCode()) {
case 1905311443: // dayCount
return dayCount;
case 100346066: // index
return index;
case -1335729296: // accrualMethod
return accrualMethod;
case 1969081334: // negativeRateMethod
return negativeRateMethod;
case -92095804: // rateCutOffDays
return rateCutOffDays;
case -91774989: // gearing
return gearing;
case -895684237: // spread
return spread;
default:
throw new NoSuchElementException("Unknown property: " + propertyName);
}
}
@Override
public Builder set(String propertyName, Object newValue) {
switch (propertyName.hashCode()) {
case 1905311443: // dayCount
this.dayCount = (DayCount) newValue;
break;
case 100346066: // index
this.index = (OvernightIndex) newValue;
break;
case -1335729296: // accrualMethod
this.accrualMethod = (OvernightAccrualMethod) newValue;
break;
case 1969081334: // negativeRateMethod
this.negativeRateMethod = (NegativeRateMethod) newValue;
break;
case -92095804: // rateCutOffDays
this.rateCutOffDays = (Integer) newValue;
break;
case -91774989: // gearing
this.gearing = (ValueSchedule) newValue;
break;
case -895684237: // spread
this.spread = (ValueSchedule) newValue;
break;
default:
throw new NoSuchElementException("Unknown property: " + propertyName);
}
return this;
}
@Override
public Builder set(MetaProperty property, Object value) {
super.set(property, value);
return this;
}
@Override
public OvernightRateCalculation build() {
preBuild(this);
return new OvernightRateCalculation(
dayCount,
index,
accrualMethod,
negativeRateMethod,
rateCutOffDays,
gearing,
spread);
}
//-----------------------------------------------------------------------
/**
* Sets the day count convention.
*
* This is used to convert dates to a numerical value.
*
* When building, this will default to the day count of the index if not specified.
* @param dayCount the new value, not null
* @return this, for chaining, not null
*/
public Builder dayCount(DayCount dayCount) {
JodaBeanUtils.notNull(dayCount, "dayCount");
this.dayCount = dayCount;
return this;
}
/**
* Sets the Overnight index.
*
* The rate to be paid is based on this index
* It will be a well known market index such as 'GBP-SONIA'.
* @param index the new value, not null
* @return this, for chaining, not null
*/
public Builder index(OvernightIndex index) {
JodaBeanUtils.notNull(index, "index");
this.index = index;
return this;
}
/**
* Sets the method of accruing overnight interest, defaulted to 'Compounded'.
*
* Two methods of accrual are supported - compounding and averaging.
* Averaging is primarily related to the 'USD-FED-FUND' index.
* @param accrualMethod the new value, not null
* @return this, for chaining, not null
*/
public Builder accrualMethod(OvernightAccrualMethod accrualMethod) {
JodaBeanUtils.notNull(accrualMethod, "accrualMethod");
this.accrualMethod = accrualMethod;
return this;
}
/**
* Sets the negative rate method, defaulted to 'AllowNegative'.
*
* This is used when the interest rate, observed or calculated, goes negative.
* It does not apply if the rate is fixed, such as in a stub or using {@code firstRegularRate}.
*
* Defined by the 2006 ISDA definitions article 6.4.
* @param negativeRateMethod the new value, not null
* @return this, for chaining, not null
*/
public Builder negativeRateMethod(NegativeRateMethod negativeRateMethod) {
JodaBeanUtils.notNull(negativeRateMethod, "negativeRateMethod");
this.negativeRateMethod = negativeRateMethod;
return this;
}
/**
* Sets the number of business days before the end of the period that the rate is cut off, defaulted to zero.
*
* When a rate cut-off applies, the final daily rate is determined this number of days
* before the end of the period, with any subsequent days having the same rate.
*
* The amount must be zero or positive.
* A value of zero or one will have no effect on the standard calculation.
* The fixing holiday calendar of the index is used to determine business days.
*
* For example, a value of {@code 3} means that the rate observed on
* {@code (periodEndDate - 3 business days)} is also to be used on
* {@code (periodEndDate - 2 business days)} and {@code (periodEndDate - 1 business day)}.
*
* If there are multiple accrual periods in the payment period, then this
* will only apply to the last accrual period in the payment period.
* @param rateCutOffDays the new value
* @return this, for chaining, not null
*/
public Builder rateCutOffDays(int rateCutOffDays) {
ArgChecker.notNegative(rateCutOffDays, "rateCutOffDays");
this.rateCutOffDays = rateCutOffDays;
return this;
}
/**
* Sets the gearing multiplier, optional.
*
* This defines the gearing as an initial value and a list of adjustments.
* The gearing is only permitted to change at accrual period boundaries.
*
* When calculating the rate, the fixing rate is multiplied by the gearing.
* A gearing of 1 has no effect.
* If both gearing and spread exist, then the gearing is applied first.
*
* If this property is not present, then no gearing applies.
*
* Gearing is also known as leverage.
* @param gearing the new value
* @return this, for chaining, not null
*/
public Builder gearing(ValueSchedule gearing) {
this.gearing = gearing;
return this;
}
/**
* Sets the spread rate, optional.
* A 5% rate will be expressed as 0.05.
*
* This defines the spread as an initial value and a list of adjustments.
* The spread is only permitted to change at accrual period boundaries.
* Spread is a per annum rate.
*
* When calculating the rate, the spread is added to the fixing rate.
* A spread of 0 has no effect.
* If both gearing and spread exist, then the gearing is applied first.
*
* If this property is not present, then no spread applies.
*
* Defined by the 2006 ISDA definitions article 6.2e.
* @param spread the new value
* @return this, for chaining, not null
*/
public Builder spread(ValueSchedule spread) {
this.spread = spread;
return this;
}
//-----------------------------------------------------------------------
@Override
public String toString() {
StringBuilder buf = new StringBuilder(256);
buf.append("OvernightRateCalculation.Builder{");
buf.append("dayCount").append('=').append(JodaBeanUtils.toString(dayCount)).append(',').append(' ');
buf.append("index").append('=').append(JodaBeanUtils.toString(index)).append(',').append(' ');
buf.append("accrualMethod").append('=').append(JodaBeanUtils.toString(accrualMethod)).append(',').append(' ');
buf.append("negativeRateMethod").append('=').append(JodaBeanUtils.toString(negativeRateMethod)).append(',').append(' ');
buf.append("rateCutOffDays").append('=').append(JodaBeanUtils.toString(rateCutOffDays)).append(',').append(' ');
buf.append("gearing").append('=').append(JodaBeanUtils.toString(gearing)).append(',').append(' ');
buf.append("spread").append('=').append(JodaBeanUtils.toString(spread));
buf.append('}');
return buf.toString();
}
}
//-------------------------- AUTOGENERATED END --------------------------
}