Library: FastInfoset
Package: FastInfoset
Header: Poco/FastInfoset/Vocabulary.h
Description
A Vocabulary allows to map values to indices and vice versa. New values are automatically enqueued and assigned an index.
Member Summary
Member Functions: clone, exists, index, init, value
Types
DataVector
typedef std::vector < T > DataVector;
Constructors
Vocabulary 
Vocabulary();
Creates the Vocabulary.
Destructor
~Vocabulary 
virtual ~Vocabulary();
Destroys the Vocabulary.
Member Functions
clone
virtual Vocabulary * clone() const = 0;
Deep-copies the vocabulary
exists
virtual Poco::UInt32 exists(
const T & value,
bool & valueExisted
) const = 0;
Returns the index for the given value. Sets valueExisted to false if the value did not exist and returns Utility::INVALIDINDEX
index
virtual Poco::UInt32 index(
const T & value,
bool & valueExisted
) = 0;
Returns the index for the given value. Automatically appends the value and assigns it a new index if the value does not exist yet. Query valueExisted to find out if the value already existed.
init
void init(
const DataVector & initialData
);
value
virtual const T & value(
Poco::UInt32 idx
) const = 0;
Returns the value for the given index. Throws an exception if the idx is out of range.