luciad::DataType Class Reference

A representation of the type of a data object. More...

#include <luciad/datamodels/DataType.h>

Classes
class	Builder
	Builder that allows DataType instances to be created. More...

Public Member Functions
std::optional< DataProperty >	findDataProperty (const std::string &name) const
	Searches for a data property by name. More...
const std::vector< std::shared_ptr< DataAnnotation > > &	getAnnotations () const
const std::vector< DataProperty > &	getDataProperties () const
size_t	getHash () const
const std::string &	getName () const
bool	hasDataProperty (const DataProperty &property) const
	Checks if the given property is declared in this data type. More...
bool	isPrimitive () const
bool	operator!= (const DataType &other) const
bool	operator== (const DataType &other) const

Static Public Member Functions
static const DataType &	getBooleanType ()
static const DataType &	getDoubleType ()
static const DataType &	getFloatType ()
static const DataType &	getGeometryType ()
static const DataType &	getIntType ()
static const DataType &	getLongType ()
static const DataType &	getStringType ()
static Builder	newBuilder ()
	Creates a new DataType builder. More...

Detailed Description

A representation of the type of a data object.

A type describes the structure of a data object as a list of properties. Each of these properties is itself of a certain type.

A type is either a primitive type or a data object type. Primitive types are types which have no internal structure (no properties) and typically represent simple object such as strings, numbers etc. All primitive types are accessible from this class (see e.g. getIntType(), getStringType() ...).

Application-specific metadata can be attached to a type in the form of a DataAnnotation.

New types can be defined using a DataType::Builder (see newBuilder()).

Instances of this class are thread safe. Once an instance has been created, there is no public API to modify it.

See also

DataProperty

Member Function Documentation

findDataProperty()

std::optional< DataProperty > luciad::DataType::findDataProperty

(

const std::string &

name

)

const

Searches for a data property by name.

Parameters

name	the name of a property

Returns

the data property with the given name, if available

See also

hasDataProperty

getAnnotations()

const std::vector< std::shared_ptr< DataAnnotation > > & luciad::DataType::getAnnotations

(

)

const

getBooleanType()

static const DataType & luciad::DataType::getBooleanType ( )

static

Returns

type that corresponds to bool values.

getDataProperties()

const std::vector< DataProperty > & luciad::DataType::getDataProperties

(

)

const

getDoubleType()

static const DataType & luciad::DataType::getDoubleType ( )

static

Returns

type that corresponds to double values.

getFloatType()

static const DataType & luciad::DataType::getFloatType ( )

static

Returns

type that corresponds to float values.

getGeometryType()

static const DataType & luciad::DataType::getGeometryType ( )

static

Returns

type that corresponds to Geometry values.

getHash()

size_t luciad::DataType::getHash

(

)

const

getIntType()

static const DataType & luciad::DataType::getIntType ( )

static

Returns

type that corresponds to int32_t values.

getLongType()

static const DataType & luciad::DataType::getLongType ( )

static

Returns

type that corresponds to int64_t values.

getName()

const std::string & luciad::DataType::getName

(

)

const

getStringType()

static const DataType & luciad::DataType::getStringType ( )

static

Returns

type that corresponds to std::string values.

hasDataProperty()

bool luciad::DataType::hasDataProperty

(

const DataProperty &

property

)

const

Checks if the given property is declared in this data type.

Parameters

property

Data property.

Returns

true if the data property is declared; false otherwise.

See also

findDataProperty

isPrimitive()

bool luciad::DataType::isPrimitive

(

)

const

Returns

whether this is a primitive type, i.e. a type without any properties.

newBuilder()

static Builder luciad::DataType::newBuilder ( )

static

Creates a new DataType builder.

Returns

a new DataType builder.

operator!=()

bool luciad::DataType::operator!=

(

const DataType &

other

)

const

operator==()

bool luciad::DataType::operator==

(

const DataType &

other

)

const

Parameters

other

another data type.

Returns

whether this type and other have the same name, properties and annotations.