MapProperty

class ReflectExport( reflect ) MapProperty : public Property

MapProperties represent key indexed data.

MapProperties provide key-based access and complete iteration through a callback.

MapProperty	MapProperties represent key indexed data.
Functions
ForEachKey	Calls a callback with every key in the map.
HasKey	Checks if the map has an element for the given key.
ReadData	Reads the value for key.
WriteData	Writes a (possibly new) map entry.
KeyType	Retrieves the type of keys represented by this map property.
ValueType	Retrieves the type of values represented by this map property.

virtual void ForEachKey( const void * in,
void (*)(const Variant &key, void *ctx),
void * ctx = 0 ) const = 0

Calls a callback with every key in the map. This is the only way to iterate over the map.

virtual bool HasKey( const void * in,
const Variant & key ) const = 0

Checks if the map has an element for the given key.

virtual bool ReadData( const void * in,
const Variant & key,
Variant & value ) const = 0

Reads the value for key.

true	if the value is successfully read.
false	if the key doesn’t exist, if the key is incompatible, or if the value can’t be copied into value.

virtual bool WriteData( void * in,
const Variant & key,
const Variant & value ) const = 0

Writes a (possibly new) map entry.

true	if the value is successfully written.
false	if the key is incompatible or the value is incompatible, or if the map cannot be extended with the new key.

virtual const Type *KeyType() const = 0

Retrieves the type of keys represented by this map property.

virtual const Type *ValueType() const = 0

Retrieves the type of values represented by this map property.