Struct cassandra_cpp::DataType

pub struct DataType(/* private fields */);

Any Cassandra datatype. This is an owned type.

Implementations

impl DataType

pub fn new(value_type: ValueType) -> Self

Creates a new data type with value type.

pub fn new_user_type(&self) -> UserType

Creates a new data type from an existing data type.

pub fn new_from_existing(&self) -> Self

Creates a new data type from an existing data type.

pub fn new_tuple(item_count: usize) -> Self

Creates a new tuple data type.

pub fn new_udt(field_count: usize) -> DataType

Creates a new UDT (user defined type) data type.

pub fn get_type(data_type: DataType) -> ValueType

Gets the value type of the specified data type.

pub fn type_name<S>(data_type: DataType, type_name: S) -> Result<()>

where S: Into<String>,

Gets the type name of a UDT data type.

pub fn set_type_name<S>(data_type: DataType, type_name: S) -> Result<()>

where S: Into<String>,

Sets the type name of a UDT data type.

Note: Only valid for UDT data types.

pub fn keyspace<S>(data_type: DataType, keyspace: S) -> Result<()>

where S: Into<String>,

Gets the type name of a UDT data type.

Note: Only valid for UDT data types.

pub fn set_keyspace<S>(data_type: DataType, keyspace: S) -> Result<()>

where S: Into<String>,

Sets the keyspace of a UDT data type.

Note: Only valid for UDT data types.

pub fn class_name<S>(data_type: DataType, class_name: S) -> Result<()>

where S: Into<String>,

Gets the class name of a custom data type.

Note: Only valid for custom data types.

pub fn set_class_name<S>(&self, class_name: S) -> Result<()>

where S: Into<String>,

Sets the class name of a custom data type.

Note: Only valid for custom data types.

pub fn sub_type_count<S>(&self) -> usize

Gets the sub-data type count of a UDT (user defined type), tuple or collection.

Note: Only valid for UDT, tuple and collection data types.

pub fn sub_data_type(&self, index: usize) -> ConstDataType<'_>

Gets the sub-data type of a UDT (user defined type), tuple or collection at the specified index.

Note: Only valid for UDT, tuple and collection data types.

pub fn sub_data_type_by_name<S>(&self, name: S) -> ConstDataType<'_>

where S: Into<String>,

Gets the sub-data type of a UDT (user defined type) at the specified index.

Note: Only valid for UDT data types.

pub fn sub_type_name<S>(&self, index: usize, name: S) -> Result<()>

where S: Into<String>,

Gets the sub-type name of a UDT (user defined type) at the specified index.

Note: Only valid for UDT data types.

pub fn add_sub_type(&self, sub_data_type: DataType) -> Result<()>

Adds a sub-data type to a tuple or collection.

Note: Only valid for tuple and collection data types.

pub fn add_sub_type_by_name<S>( &mut self, name: S, sub_data_type: DataType ) -> Result<()>

where S: Into<String>,

Gets the sub-data type of a UDT (user defined type) at the specified index.

Note: Only valid for UDT data types.

pub fn add_sub_value_type<S>(&self, sub_value_type: ValueType) -> Result<()>

where S: Into<String>,

Adds a sub-data type to a tuple or collection using a value type.

Note: Only valid for tuple and collection data types.

pub fn add_sub_value_type_by_name<S>( &self, name: S, typ: ValueType ) -> Result<()>

where S: Into<String>,

Adds a sub-data type to a tuple or collection using a value type.

Note: Only valid for tuple and collection data types.

Trait Implementations

impl Debug for DataType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for DataType

fn drop(&mut self)

Frees a data type instance.

impl Send for DataType

impl Sync for DataType