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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/stllike/string.h>
namespace search {
namespace fef {
/**
* This namespace is a placeholder for several structs, each
* representing a query property with name and default value. All
* property names defined here will have the prefix "vespa." and are
* known by the feature execution framework. When accessing a query
* property from a @ref Properties instance one should use the
* property names defined here to perform the lookup. The query
* properties are the set of properties available through the query
* environment. These properties are denoted as rank properties in
* other parts of the system.
**/
namespace queryproperties {
namespace now {
/**
* Property indicating the time to be used for time-sensitive
* relevancy computations. This affects the value returned by the
* global feature 'now'. The time is given in seconds since epoch.
**/
struct SystemTime {
/**
* Property name.
**/
static const vespalib::string NAME;
};
} // namespace now
} // namespace queryproperties
} // namespace fef
} // namespace search
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