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/***************************************************************************
mymoneykeyvaluecontainer.h
-------------------
begin : Sun Nov 10 2002
copyright : (C) 2000-2005 by Thomas Baumgart
email : Thomas Baumgart <ipwizard@users.sourceforge.net>
***************************************************************************/
/***************************************************************************
* *
* This program 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. *
* *
***************************************************************************/
#ifndef MYMONEYKEYVALUECONTAINER_H
#define MYMONEYKEYVALUECONTAINER_H
/**
* @author Thomas Baumgart
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
// ----------------------------------------------------------------------------
// QT Includes
#include <tqstring.h>
#include <tqmap.h>
#include <tqdom.h>
#include <kmymoney/export.h>
// ----------------------------------------------------------------------------
// Project Includes
/**
* This class implements a container for key/value pairs. This is used
* to store an arbitrary number of attributes with any of the engine
* object. The container can also be used to have attributes that are
* attached to this object only for a limited time (e.g. between
* start of reconciliation end it's end).
*
* To give any class the ability to have a key/value pair container,
* just derive the class from this one. See MyMoneyAccount as an example.
*/
class KMYMONEY_EXPORT MyMoneyKeyValueContainer
{
public:
MyMoneyKeyValueContainer();
MyMoneyKeyValueContainer(const TQDomElement& node);
~MyMoneyKeyValueContainer();
/**
* This method can be used to retrieve the value for a specific @p key.
* If the key is unknown in this container, an empty string will be returned.
*
* @param key const reference to TQString with the key to search for
* @return reference to value of this key. If the key does not exist,
* an emtpy string is returned.
*/
const TQString& value(const TQString& key) const;
/**
* This method is used to add a key/value pair to the container or
* modify an existing pair.
*
* @param key const reference to TQString with the key to search for
* @param value const reference to TQString with the value for this key
*/
void setValue(const TQString& key, const TQString& value);
/**
* This method is used to remove an existing key/value pair from the
* container. If the key does not exist, the container is not changed.
*
* @param key const reference to TQString with the key to remove
*/
void deletePair(const TQString& key);
/**
* This method clears all pairs currently in the container.
*/
void clear(void);
/**
* This method is used to retrieve the whole set of key/value pairs
* from the container. It is meant to be used for permanent storage
* functionality.
*
* @return TQMap<TQString, TQString> containing all key/value pairs of
* this container.
*/
const TQMap<TQString, TQString>& pairs(void) const { return m_kvp; };
/**
* This method is used to initially store a set of key/value pairs
* in the container. It is meant to be used for loading functionality
* from permanent storage.
*
* @param list const TQMap<TQString, TQString> containing the set of
* key/value pairs to be loaded into the container.
*
* @note All existing key/value pairs in the container will be deleted.
*/
void setPairs(const TQMap<TQString, TQString>& list);
/**
* This operator tests for equality of two MyMoneyKeyValueContainer objects
*/
bool operator == (const MyMoneyKeyValueContainer &) const;
const TQString& operator[] ( const TQString& k ) const { return value(k); }
TQString& operator[] ( const TQString& k) { return m_kvp[k]; }
/**
* This method creates a TQDomElement for the @p document
* under the tqparent node @p tqparent.
*
* @param document reference to TQDomDocument
* @param tqparent reference to TQDomElement tqparent node
*/
void writeXML(TQDomDocument& document, TQDomElement& tqparent) const;
private:
/**
* This member variable represents the container of key/value pairs.
*/
TQMap<TQString, TQString> m_kvp;
};
#endif
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