#include <guid.h>
Inheritance diagram for PGloballyUniqueID:
Public Member Functions | |
Construction | |
| PGloballyUniqueID () | |
| Create a new ID. | |
| PGloballyUniqueID (const char *cstr) | |
| Create an ID from a C string of hex (as produced by AsString()). | |
| PGloballyUniqueID (const PString &str) | |
| Create an ID from a PString of hex (as produced by AsString()). | |
Overrides from PObject | |
| virtual void | PrintOn (ostream &strm) const |
| Standard stream print function. | |
| virtual void | ReadFrom (istream &strm) |
| Standard stream read function. | |
| virtual PObject * | Clone () const |
| Create a clone of the ID. | |
| virtual PINDEX | HashFunction () const |
| Get the hash value for the ID. | |
Operations | |
| PString | AsString () const |
| Convert the ID to human readable string. | |
| PBoolean | IsNULL () const |
| Test if the GUID is null, ie consists of all zeros. | |
| PBoolean | operator! () const |
This implements a 128 bit globally unique ID as required by many protocols and software systems. The value is constructed in such a way as to make a duplicate anywhere in the world highly unlikely.
| PGloballyUniqueID::PGloballyUniqueID | ( | ) |
Create a new ID.
The ID created with this will be initialised to a globally unique ID as per specification.
| PGloballyUniqueID::PGloballyUniqueID | ( | const char * | cstr | ) |
Create an ID from a C string of hex (as produced by AsString()).
A useful construct is to construct a OpalGloballyUniqueID() with NULL which produces an all zero GUID, detectable with the IsNULL() function.
| cstr | C string to convert |
| PGloballyUniqueID::PGloballyUniqueID | ( | const PString & | str | ) |
Create an ID from a PString of hex (as produced by AsString()).
| str | String of hex to convert |
| PString PGloballyUniqueID::AsString | ( | ) | const |
Convert the ID to human readable string.
| virtual PObject* PGloballyUniqueID::Clone | ( | ) | const [virtual] |
Create a clone of the ID.
The duplicate ID has the same value as the source. Required for having this object as a key in dictionaries.
Reimplemented from PBaseArray< T >.
| virtual PINDEX PGloballyUniqueID::HashFunction | ( | ) | const [virtual] |
Get the hash value for the ID.
Creates a number based on the ID value for use in the hash table of a dictionary. Required for having this object as a key in dictionaries.
Reimplemented from PObject.
| PBoolean PGloballyUniqueID::IsNULL | ( | ) | const |
Test if the GUID is null, ie consists of all zeros.
| PBoolean PGloballyUniqueID::operator! | ( | ) | const [inline] |
| virtual void PGloballyUniqueID::PrintOn | ( | ostream & | strm | ) | const [virtual] |
Standard stream print function.
The PObject class has a << operator defined that calls this function polymorphically.
| strm | Stream to output text representation |
Reimplemented from PAbstractArray.
| virtual void PGloballyUniqueID::ReadFrom | ( | istream & | strm | ) | [virtual] |
Standard stream read function.
The PObject class has a >> operator defined that calls this function polymorphically.
| strm | Stream to output text representation |
Reimplemented from PAbstractArray.
1.4.7