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secondo/Algebras/Tile/UniqueStringArray/UniqueStringArray.h
2026-01-23 17:03:45 +08:00

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/*
This file is part of SECONDO.
Copyright (C) 2013, University in Hagen, Department of Computer Science,
Database Systems for New Applications.
SECONDO is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
SECONDO is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef TILEALGEBRA_UNIQUESTRINGARRAY_H
#define TILEALGEBRA_UNIQUESTRINGARRAY_H
/*
SECONDO includes
*/
#include "Attribute.h"
#include "../../Tools/Flob/DbArray.h"
#include "../../Tools/Flob/Flob.h"
/*
TileAlgebra includes
*/
#include "StringData.h"
/*
declaration of namespace TileAlgebra
*/
namespace TileAlgebra
{
/*
Class UniqueStringArray represents an array of unique strings.
author: Dirk Zacher
*/
class UniqueStringArray : public Attribute
{
public:
/*
Constructor UniqueStringArray does not initialize any members and
should only be used in conjunction with Cast method.
author: Dirk Zacher
parameters: -
return value: -
exceptions: -
*/
UniqueStringArray();
/*
Constructor UniqueStringArray sets defined flag of base class Attribute and
initializes all members of the class with default values.
author: Dirk Zacher
parameters: bDefined - defined flag of base class Attribute
return value: -
exceptions: -
*/
UniqueStringArray(bool bDefined);
/*
Constructor UniqueStringArray sets defined flag of base class Attribute
to defined flag of rUniqueStringArray object and initializes all
members of the class with corresponding values of rUniqueStringArray object.
author: Dirk Zacher
parameters: rUniqueStringArray - reference to a UniqueStringArray object
return value: -
exceptions: -
*/
UniqueStringArray(const UniqueStringArray& rUniqueStringArray);
/*
Destructor ~UniqueStringArray deinitializes a UniqueStringArray object.
author: Dirk Zacher
parameters: -
return value: -
exceptions: -
*/
virtual ~UniqueStringArray();
/*
Operator= assigns all member values of a given UniqueStringArray object
to the corresponding member values of this object.
author: Dirk Zacher
parameters: rUniqueStringArray - reference to a UniqueStringArray object
return value: reference to this object
exceptions: -
*/
UniqueStringArray& operator=(const UniqueStringArray& rUniqueStringArray);
/*
Method GetUniqueString returns the string with given index.
author: Dirk Zacher
parameters: nIndex - index of string
rString - reference to a string containing
the string with given index
return value: true, if nIndex is a valid string index and rString contains
the string with given index, otherwise false
exceptions: -
*/
bool GetUniqueString(int nIndex, std::string& rString) const;
/*
Method GetUniqueStringArray returns all unique strings.
author: Dirk Zacher
parameters: rUniqueStringArray - reference to a vector of strings
containing all unique strings
return value: -
exceptions: -
*/
void GetUniqueStringArray(std::vector<std::string>& rUniqueStringArray) const;
/*
Method GetUniqueStringIndex returns the index of a unique string.
author: Dirk Zacher
parameters: rString - reference to a string
return value: index of unique string if rString exists in UniqueStringArray,
otherwise UNDEFINED_STRING_INDEX
exceptions: -
*/
int GetUniqueStringIndex(const std::string& rString) const;
/*
Method AddString adds given string to UniqueStringArray if given string
does not exist in UniqueStringArray and returns the index of given string.
author: Dirk Zacher
parameters: rString - reference to a string
return value: index of given string in UniqueStringArray
exceptions: -
*/
int AddString(const std::string& rString);
/*
Method Destroy destroys UniqueStringArray object.
author: Dirk Zacher
parameters: -
return value: -
exceptions: -
*/
void Destroy();
private:
/*
Method IsUniqueString checks if given string is an unique string.
author: Dirk Zacher
parameters: rString - reference to a string
return value: true, if given string is an unique string, otherwise false
exceptions: -
*/
bool IsUniqueString(const std::string& rString) const;
public:
/*
Method Adjacent checks if this object is adjacent to given Attribute object.
author: Dirk Zacher
parameters: pAttribute - a pointer to an Attribute object
return value: true, if this object is adjacent to pAttribute, otherwise false
exceptions: -
*/
virtual bool Adjacent(const Attribute* pAttribute) const;
/*
Method Clone returns a copy of this object.
author: Dirk Zacher
parameters: -
return value: a pointer to a copy of this object
exceptions: -
*/
virtual Attribute* Clone() const;
/*
Method Compare compares this object with given Attribute object.
author: Dirk Zacher
parameters: pAttribute - a pointer to an Attribute object
return value: -1 if this object < pAttribute object or
this object is undefined and pAttribute object is defined,
0 if this object equals pAttribute object or
this object and pAttribute object are undefined,
1 if this object > pAttribute object or
this object is defined and pAttribute object is undefined
exceptions: -
*/
virtual int Compare(const Attribute* pAttribute) const;
/*
Method CopyFrom assigns all member values of pAttribute object
to the corresponding member values of this object.
author: Dirk Zacher
parameters: pAttribute - a pointer to an Attribute object
return value: -
exceptions: -
*/
virtual void CopyFrom(const Attribute* pAttribute);
/*
Method GetFLOB returns a pointer to the Flob with given index.
author: Dirk Zacher
parameters: i - index of Flob
return value: a pointer to the Flob with given index
exceptions: -
*/
virtual Flob* GetFLOB(const int i);
/*
Method HashValue returns the hash value of the UniqueStringArray object.
author: Dirk Zacher
parameters: -
return value: hash value of the UniqueStringArray object
exceptions: -
*/
virtual size_t HashValue() const;
/*
Method NumOfFLOBs returns the number of Flobs of a UniqueStringArray object.
author: Dirk Zacher
parameters: -
return value: number of Flobs of a UniqueStringArray object
exceptions: -
*/
virtual int NumOfFLOBs() const;
/*
Method Sizeof returns the size of UniqueStringArray datatype.
author: Dirk Zacher
parameters: -
return value: size of UniqueStringArray datatype
exceptions: -
*/
virtual size_t Sizeof() const;
/*
Method BasicType returns the typename of UniqueStringArray datatype.
author: Dirk Zacher
parameters: -
return value: typename of UniqueStringArray datatype
exceptions: -
*/
static const std::string BasicType();
/*
Method Cast casts a void pointer to a new UniqueStringArray object.
author: Dirk Zacher
parameters: pVoid - a pointer to a memory address
return value: a pointer to a new UniqueStringArray object
exceptions: -
*/
static void* Cast(void* pVoid);
/*
Method Clone clones an existing UniqueStringArray object
given by a reference to a Word.
author: Dirk Zacher
parameters: typeInfo - TypeInfo of object referenced by rWord
rWord - reference to the address of an existing
UniqueStringArray object
return value: a Word that references a new UniqueStringArray object
exceptions: -
*/
static Word Clone(const ListExpr typeInfo,
const Word& rWord);
/*
Method Close closes an existing UniqueStringArray object
given by a reference to a Word.
author: Dirk Zacher
parameters: typeInfo - TypeInfo of object referenced by rWord
rWord - reference to the address of an existing
UniqueStringArray object
return value: -
exceptions: -
*/
static void Close(const ListExpr typeInfo,
Word& rWord);
/*
Method Create creates a new UniqueStringArray object.
author: Dirk Zacher
parameters: typeInfo - TypeInfo of the new UniqueStringArray object to create
return value: a Word that references a new UniqueStringArray object
exceptions: -
*/
static Word Create(const ListExpr typeInfo);
/*
Method Delete deletes an existing UniqueStringArray object
given by a reference to a Word.
author: Dirk Zacher
parameters: typeInfo - TypeInfo of object referenced by rWord
rWord - reference to the address of an existing
UniqueStringArray object
return value: -
exceptions: -
*/
static void Delete(const ListExpr typeInfo,
Word& rWord);
/*
Method GetTypeConstructor returns the TypeConstructor
of class UniqueStringArray.
author: Dirk Zacher
parameters: -
return value: TypeConstructor of class UniqueStringArray
exceptions: -
*/
static TypeConstructor GetTypeConstructor();
/*
Method In creates a new UniqueStringArray object
on the basis of a given ListExpr.
author: Dirk Zacher
parameters: typeInfo - TypeInfo of object to create on the basis of instance
instance - ListExpr of the UniqueStringArray object to create
errorPos - error position
rErrorInfo - reference to error information
rCorrect - flag that indicates if UniqueStringArray object
correctly created
return value: a Word that references a new UniqueStringArray object
exceptions: -
*/
static Word In(const ListExpr typeInfo,
const ListExpr instance,
const int errorPos,
ListExpr& rErrorInfo,
bool& rCorrect);
/*
Method KindCheck checks if given type is UniqueStringArray type.
author: Dirk Zacher
parameters: type - ListExpr of type to check
rErrorInfo - reference to error information
return value: true, if type is UniqueStringArray type, otherwise false
exceptions: -
*/
static bool KindCheck(ListExpr type,
ListExpr& rErrorInfo);
/*
Method Open opens a UniqueStringArray object from a SmiRecord.
author: Dirk Zacher
parameters: rValueRecord - SmiRecord containing UniqueStringArray object
to open
rOffset - Offset to the UniqueStringArray object in SmiRecord
typeInfo - TypeInfo of UniqueStringArray object to open
rValue - reference to a Word referencing the opened
UniqueStringArray object
return value: true, if UniqueStringArray object was successfully opened,
otherwise false
exceptions: -
*/
static bool Open(SmiRecord& rValueRecord,
size_t& rOffset,
const ListExpr typeInfo,
Word& rValue);
/*
Method Out writes out an existing UniqueStringArray object
in the form of a ListExpr.
author: Dirk Zacher
parameters: typeInfo - TypeInfo of UniqueStringArray object to write out
value - reference to a Word referencing
the UniqueStringArray object
return value: ListExpr of UniqueStringArray object referenced by value
exceptions: -
*/
static ListExpr Out(ListExpr typeInfo,
Word value);
/*
Method Property returns all properties of UniqueStringArray datatype.
author: Dirk Zacher
parameters: -
return value: properties of UniqueStringArray datatype
in the form of a ListExpr
exceptions: -
*/
static ListExpr Property();
/*
Method Save saves an existing UniqueStringArray object in a SmiRecord.
author: Dirk Zacher
parameters: rValueRecord - SmiRecord to save existing UniqueStringArray object
rOffset - Offset to save position of UniqueStringArray object
in SmiRecord
typeInfo - TypeInfo of UniqueStringArray object to save
rValue - reference to a Word referencing
the UniqueStringArray object to save
return value: true, if UniqueStringArray object was successfully saved,
otherwise false
exceptions: -
*/
static bool Save(SmiRecord& rValueRecord,
size_t& rOffset,
const ListExpr typeInfo,
Word& rValue);
/*
Method SizeOfObj returns the size of a UniqueStringArray object.
author: Dirk Zacher
parameters: -
return value: size of a UniqueStringArray object
exceptions: -
*/
static int SizeOfObj();
private:
/*
Member m_StringData contains string informations of all unique strings.
*/
DbArray<StringData> m_StringData;
/*
Member m_StringFlob contains the Flob to store all unique strings.
*/
Flob m_StringFlob;
};
}
#endif // TILEALGEBRA_UNIQUESTRINGARRAY_H