//-------------------------------------------------------------------------------------------------------+
// Copyright (C), 1998-2007, SH Software Co. Ltd.
// = FileName	:   Quene 模板类
// = Version	:   ver2.0
// = Author		:   zjq
// = CreateDate	:   2002-09-09
// = Description:   Quene 声明 队列抽象类
// = Maintainers: 
//                  
//-------------------------------------------------------------------------------------------------------+
#ifndef _QUENE_H_
#define _QUENE_H_

template<class T> class Quene
{
public:
	Quene(long length = -1);
	
	virtual ~Quene();
	
	virtual T& operator[](long i) = 0;
	
	virtual void Clear() = 0;
	
	virtual long GetLength() = 0;

	virtual bool DeQuene(T&t) = 0;
	
	virtual bool EnQuene(T const&t) = 0;
	
	virtual bool GetHeadData(T&t) = 0;
	
	virtual bool GetTailData(T&t) = 0;
	
	bool IsLengthLimited();
	
	long GetMaxLength();
	
	bool IsEmpty();

	void SetMaxLength(long length);

protected:

	long maxLength;
};
template<class T>
Quene<T>::Quene(long length)
{
	maxLength=length;
}

template<class T>
Quene<T>::~Quene()
{

}

template<class T>
void Quene<T>::SetMaxLength(long length)
{
	maxLength=length;
}

template<class T>
long Quene<T>::GetMaxLength()
{
	return maxLength;
}

template<class T>
bool Quene<T>::IsLengthLimited()
{
	return maxLength >= 0;
}

template<class T>
bool Quene<T>::IsEmpty()

{
	return GetLength() == 0;
}

#endif