/**
* Copyright (C) 2015 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.strata.market;
import java.time.LocalDate;
import java.util.Optional;
import com.opengamma.strata.data.MarketDataName;
/**
* A high-level view of a single item of market data.
* <p>
* Implementations provide a high-level view of a single piece of market data.
* The market data has typically been calibrated, such as a curve or surface.
* The data is valid on a single valuation date.
*/
public interface MarketDataView {
/**
* Gets the valuation date.
* <p>
* The raw data in this provider is calibrated for this date.
*
* @return the valuation date
*/
public abstract LocalDate getValuationDate();
/**
* Finds the market data with the specified name.
* <p>
* This is most commonly used to find an underlying curve or surface by name.
* If the market data cannot be found, empty is returned.
*
* @param <T> the type of the market data value
* @param name the name to find
* @return the market data value, empty if not found
*/
public abstract <T> Optional<T> findData(MarketDataName<T> name);
}