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PSet< T > Class Template Reference

This template class maps the PAbstractSet to a specific object type. More...

#include <dict.h>

Inheritance diagram for PSet< T >:
Collaboration diagram for PSet< T >:

Classes

class  const_iterator
 
class  iterator
 
class  iterator_base
 

Public Member Functions

Construction
 PSet (PBoolean initialDeleteObjects=false)
 Create a new, empty, dictionary. More...
 
Overrides from class PObject
virtual PObjectClone () const
 Make a complete duplicate of the set. More...
 
New functions for class
void Include (const T *obj)
 Include the specified object into the set. More...
 
PSetoperator+= (const T &obj)
 Include the specified objects value into the set. More...
 
void Exclude (const T *obj)
 Remove the object from the set. More...
 
PSetoperator-= (const T &obj)
 Remove the objects value from the set. More...
 
PBoolean Contains (const T &key) const
 Determine if the value of the object is contained in the set. More...
 
PBoolean operator[] (const T &key) const
 Determine if the value of the object is contained in the set. More...
 
virtual const T & GetKeyAt (PINDEX index) const
 Get the key in the set at the ordinal index position. More...
 
Iterators
iterator begin ()
 
iterator end ()
 
iterator find (const T &k)
 
const_iterator begin () const
 
const_iterator end () const
 
const_iterator find (const T &k) const
 
void erase (const iterator &it)
 
void erase (const const_iterator &it)
 
- Public Member Functions inherited from PAbstractSet
PINLINE PAbstractSet ()
 Create a new, empty, set. More...
 
virtual PINDEX Append (PObject *obj)
 Add a new object to the collection. More...
 
virtual PINDEX Insert (const PObject &before, PObject *obj)
 Add a new object to the collection. More...
 
virtual PINDEX InsertAt (PINDEX index, PObject *obj)
 Add a new object to the collection. More...
 
virtual PBoolean Remove (const PObject *obj)
 Remove the object from the collection. More...
 
virtual PObjectRemoveAt (PINDEX index)
 Remove an object at the specified index. More...
 
virtual PObjectGetAt (PINDEX index) const
 This function is the same as PHashTable::AbstractGetKeyAt(). More...
 
virtual PBoolean SetAt (PINDEX index, PObject *val)
 Add a new object to the collection. More...
 
virtual PINDEX GetObjectsIndex (const PObject *obj) const
 Search the collection for the specific instance of the object. More...
 
virtual PINDEX GetValuesIndex (const PObject &obj) const
 Search the collection for the specified value of the object. More...
 
bool Union (const PAbstractSet &set)
 Calculate union of sets. More...
 
- Public Member Functions inherited from PHashTable
 PHashTable ()
 Create a new, empty, hash table. More...
 
virtual Comparison Compare (const PObject &obj) const
 Get the relative rank of the two hash tables. More...
 
virtual PBoolean SetSize (PINDEX newSize)
 This function is meaningless for hash table. More...
 
PINLINE PBoolean AbstractContains (const PObject &key) const
 Determine if the value of the object is contained in the hash table. More...
 
virtual const PObjectAbstractGetKeyAt (PINDEX index) const
 Get the key in the hash table at the ordinal index position. More...
 
virtual PObjectAbstractGetDataAt (PINDEX index) const
 Get the data in the hash table at the ordinal index position. More...
 
- Public Member Functions inherited from PCollection
 PCollection (PINDEX initialSize=0)
 Create a new collection. More...
 
virtual void PrintOn (ostream &strm) const
 Print the collection on the stream. More...
 
__inline void remove (const PObject *obj)
 
virtual void RemoveAll ()
 Remove all of the elements in the collection. More...
 
__inline void clear ()
 
PINLINE void AllowDeleteObjects (PBoolean yes=true)
 Allow or disallow the deletion of the objects contained in the collection. More...
 
void DisallowDeleteObjects ()
 Disallow the deletion of the objects contained in the collection. More...
 
- Public Member Functions inherited from PContainer
 PContainer (PINDEX initialSize=0)
 Create a new unique container. More...
 
 PContainer (const PContainer &cont)
 Create a new refernce to container. More...
 
PContaineroperator= (const PContainer &cont)
 Assign one container reference to another. More...
 
virtual ~PContainer ()
 Destroy the container class. More...
 
virtual PINDEX GetSize () const
 Get the current size of the container. More...
 
__inline size_t size () const
 
PBoolean SetMinSize (PINDEX minSize)
 Set the minimum size of container. More...
 
virtual PBoolean IsEmpty () const
 Determine if the container is empty. More...
 
__inline bool empty () const
 
PBoolean IsUnique () const
 Determine if container is unique reference. More...
 
virtual PBoolean MakeUnique ()
 Make this instance to be the one and only reference to the container contents. More...
 
- Public Member Functions inherited from PObject
__inline unsigned GetTraceContextIdentifier () const
 Get PTRACE context identifier. More...
 
__inline void SetTraceContextIdentifier (unsigned id)
 
__inline void SetTraceContextIdentifier (const PObject &obj)
 
__inline void SetTraceContextIdentifier (const PObject *obj)
 
__inline void CopyTraceContextIdentifier (PObject &obj) const
 
__inline void CopyTraceContextIdentifier (PObject *obj) const
 
virtual ~PObject ()
 
__inline const char * GetClass () const
 
__inline bool IsClass (const char *name) const
 
__inline const PObjectPTraceObjectInstance () const
 
template<class CLS >
CLS * CloneAs () const
 As for Clone() but converts to specified type. More...
 
virtual PINDEX HashFunction () const
 This function yields a hash value required by the PDictionary class. More...
 
virtual Comparison CompareObjectMemoryDirect (const PObject &obj) const
 Determine the byte wise comparison of two objects. More...
 
bool operator== (const PObject &obj) const
 Compare the two objects. More...
 
bool operator!= (const PObject &obj) const
 Compare the two objects. More...
 
bool operator< (const PObject &obj) const
 Compare the two objects. More...
 
bool operator> (const PObject &obj) const
 Compare the two objects. More...
 
bool operator<= (const PObject &obj) const
 Compare the two objects. More...
 
bool operator>= (const PObject &obj) const
 Compare the two objects. More...
 
virtual void ReadFrom (istream &strm)
 Input the contents of the object from the stream. More...
 

Protected Member Functions

 PSet (int dummy, const PSet *c)
 
- Protected Member Functions inherited from PCollection
PINLINE PCollection (int dummy, const PCollection *coll)
 Constructor used in support of the Clone() function. More...
 
- Protected Member Functions inherited from PContainer
 PContainer (int dummy, const PContainer *cont)
 Constructor used in support of the Clone() function. More...
 
 PContainer (PContainerReference &reference)
 Construct using static PContainerReference. More...
 
virtual void DestroyContents ()=0
 Destroy the container contents. More...
 
virtual void AssignContents (const PContainer &c)
 Copy the container contents. More...
 
void CopyContents (const PContainer &c)
 Copy the container contents. More...
 
void CloneContents (const PContainer *src)
 Create a duplicate of the container contents. More...
 
void Destruct ()
 Internal function called from container destructors. More...
 
virtual void DestroyReference ()
 Destroy the PContainerReference instance. More...
 
- Protected Member Functions inherited from PObject
 PObject ()
 Constructor for PObject, made protected so cannot ever create one on its own. More...
 

Additional Inherited Members

- Public Types inherited from PObject
enum  Comparison { LessThan = -1, EqualTo = 0, GreaterThan = 1 }
 Result of the comparison operation performed by the Compare() function. More...
 
- Static Public Member Functions inherited from PAbstractSet
static bool Intersection (const PAbstractSet &set1, const PAbstractSet &set2, PAbstractSet *intersection=NULL)
 Calculate intersection of sets. More...
 
- Static Public Member Functions inherited from PObject
static __inline void CopyTraceContextIdentifier (PObject &to, const PObject &from)
 
static __inline void CopyTraceContextIdentifier (PObject &to, const PObject *from)
 
static __inline void CopyTraceContextIdentifier (PObject *to, const PObject &from)
 
static __inline void CopyTraceContextIdentifier (PObject *to, const PObject *from)
 
static __inline const char * Class ()
 
static __inline const PObjectPTraceObjectInstance (const char *)
 
static __inline const PObjectPTraceObjectInstance (const PObject *obj)
 
template<typename T >
static Comparison Compare2 (T v1, T v2)
 Compare two types, returning Comparison type. More...
 
static Comparison InternalCompareObjectMemoryDirect (const PObject *obj1, const PObject *obj2, PINDEX size)
 Internal function caled from CompareObjectMemoryDirect() More...
 
- Public Attributes inherited from PHashTable
PHashTableInfohashTable
 
- Protected Attributes inherited from PContainer
PContainerReferencereference
 
- Protected Attributes inherited from PObject
unsigned m_traceContextIdentifier
 

Detailed Description

template<class T>
class PSet< T >

This template class maps the PAbstractSet to a specific object type.

The functions in this class primarily do all the appropriate casting of types.

By default, objects placed into the set will not be deleted when removed or when all references to the set are destroyed. This is different from the default on most collection classes.

Note that if templates are not used the PDECLARE_SET macro will simulate the template instantiation.

Constructor & Destructor Documentation

template<class T>
PSet< T >::PSet ( PBoolean  initialDeleteObjects = false)
inline

Create a new, empty, dictionary.

The parameter indicates whether to delete objects that are removed from the set.

Note that by default, objects placed into the set will not be deleted when removed or when all references to the set are destroyed. This is different from the default on most collection classes.

Referenced by PSet< PString >::Clone().

template<class T>
PSet< T >::PSet ( int  dummy,
const PSet< T > *  c 
)
inlineprotected

Member Function Documentation

template<class T>
iterator PSet< T >::begin ( )
inline
template<class T>
const_iterator PSet< T >::begin ( ) const
inline
template<class T>
virtual PObject* PSet< T >::Clone ( ) const
inlinevirtual

Make a complete duplicate of the set.

Note that all objects in the array are also cloned, so this will make a complete copy of the set.

Reimplemented from PObject.

Reimplemented in PStringSet.

template<class T>
PBoolean PSet< T >::Contains ( const T &  key) const
inline

Determine if the value of the object is contained in the set.

The object values are compared, not the pointers. So the objects in the collection must correctly implement the PObject::Compare() function. The hash table is used to locate the entry.

Returns
true if the object value is in the set.
Parameters
keyKey to look for in the set.
template<class T>
iterator PSet< T >::end ( )
inline
template<class T>
const_iterator PSet< T >::end ( ) const
inline
template<class T>
void PSet< T >::erase ( const iterator it)
inline
template<class T>
void PSet< T >::erase ( const const_iterator it)
inline
template<class T>
void PSet< T >::Exclude ( const T *  obj)
inline

Remove the object from the set.

If the AllowDeleteObjects option is set then the object is also deleted.

The object values are compared, not the pointers. So the objects in the collection must correctly implement the PObject::Compare() function. The hash table is used to locate the entry.

template<class T>
iterator PSet< T >::find ( const T &  k)
inline
template<class T>
const_iterator PSet< T >::find ( const T &  k) const
inline
template<class T>
virtual const T& PSet< T >::GetKeyAt ( PINDEX  index) const
inlinevirtual

Get the key in the set at the ordinal index position.

The ordinal position in the set is determined by the hash values of the keys and the order of insertion.

WARNING: this code requires a linear search for every operation and will be VERY slow for large data sets. This function is kept for backwards compatibilty only. New code should use the iterator based access methods

Returns
reference to key at the index position.
Parameters
indexIndex of value to get.
template<class T>
void PSet< T >::Include ( const T *  obj)
inline

Include the specified object into the set.

If the objects value is already in the set then the object is not included. If the AllowDeleteObjects option is set then the obj parameter is also deleted.

The object values are compared, not the pointers. So the objects in the collection must correctly implement the PObject::Compare() function. The hash table is used to locate the entry.

template<class T>
PSet& PSet< T >::operator+= ( const T &  obj)
inline

Include the specified objects value into the set.

If the objects value is already in the set then the object is not included.

The object values are compared, not the pointers. So the objects in the collection must correctly implement the PObject::Compare() function. The hash table is used to locate the entry.

template<class T>
PSet& PSet< T >::operator-= ( const T &  obj)
inline

Remove the objects value from the set.

If the AllowDeleteObjects option is set then the object is also deleted.

The object values are compared, not the pointers. So the objects in the collection must correctly implement the PObject::Compare() function. The hash table is used to locate the entry.

template<class T>
PBoolean PSet< T >::operator[] ( const T &  key) const
inline

Determine if the value of the object is contained in the set.

The object values are compared, not the pointers. So the objects in the collection must correctly implement the PObject::Compare() function. The hash table is used to locate the entry.

Returns
true if the object value is in the set.
Parameters
keyKey to look for in the set.

The documentation for this class was generated from the following file: