/usr/include/Poco/Data/Limit.h is in libpoco-dev 1.8.0.1-1ubuntu4.
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// Limit.h
//
// Library: Data
// Package: DataCore
// Module: Limit
//
// Definition of the Limit class.
//
// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Data_Limit_INCLUDED
#define Data_Limit_INCLUDED
#include "Poco/Data/Data.h"
namespace Poco {
namespace Data {
class Data_API Limit
/// Limit stores information how many rows a query should return.
{
public:
typedef Poco::UInt32 SizeT;
enum Type
{
LIMIT_UNLIMITED = ~((SizeT) 0)
};
Limit(SizeT value, bool hardLimit = false, bool isLowerLimit = false);
/// Creates the Limit.
///
/// Value contains the upper row hint, if hardLimit is set to true, the limit acts as a hard
/// border, ie. every query must return exactly value rows, returning more than value objects will throw an exception!
/// LowerLimits always act as hard-limits!
///
/// A value of LIMIT_UNLIMITED disables the limit.
~Limit();
/// Destroys the Limit.
SizeT value() const;
/// Returns the value of the limit
bool isHardLimit() const;
/// Returns true if the limit is a hard limit.
bool isLowerLimit() const;
/// Returns true if the limit is a lower limit, otherwise it is an upperLimit
bool operator == (const Limit& other) const;
/// Equality operator.
bool operator != (const Limit& other) const;
/// Inequality operator.
private:
SizeT _value;
bool _hardLimit;
bool _isLowerLimit;
};
//
// inlines
//
inline Poco::UInt32 Limit::value() const
{
return _value;
}
inline bool Limit::isHardLimit() const
{
return _hardLimit;
}
inline bool Limit::isLowerLimit() const
{
return _isLowerLimit;
}
inline bool Limit::operator == (const Limit& other) const
{
return other._value == _value &&
other._hardLimit == _hardLimit &&
other._isLowerLimit == _isLowerLimit;
}
inline bool Limit::operator != (const Limit& other) const
{
return other._value != _value ||
other._hardLimit != _hardLimit ||
other._isLowerLimit != _isLowerLimit;
}
} } // namespace Poco::Data
#endif // Data_Limit_INCLUDED
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