#include <base.h>
Inheritance diagram for Extensible:
Public Member Functions | |
bool | Extend (std::string key, char *p) |
Extend an Extensible class. | |
bool | Shrink (std::string key) |
Shrink an Extensible class. | |
char * | GetExt (std::string key) |
Get an extension item. | |
Private Attributes | |
std::map< std::string, char * > | Extension_Items |
Private data store. |
class Extensible implements a system which allows modules to 'extend' the class by attaching data within a map associated with the object. In this way modules can store their own custom information within user objects, channel objects and server objects, without breaking other modules (this is more sensible than using a flags variable, and each module defining bits within the flag as 'theirs' as it is less prone to conflict and supports arbitary data storage).
Definition at line 38 of file base.h.
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Extend an Extensible class. You must provide a key to store the data as, and a void* to the data (typedef VoidPointer) The data will be inserted into the map. If the data already exists, you may not insert it twice, Extensible::Extend will return false in this case. On successful extension, Extend returns true. |
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Get an extension item. You must provide a key name, which is case sensitive. If you provide a non-existent key name, the function returns NULL, otherwise a pointer to the item referenced by the key is returned. |
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Shrink an Extensible class. You must provide a key name. The given key name will be removed from the classes data. If you provide a nonexistent key (case is important) then the function will return false. Returns true on success. |
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Private data store.
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