Enum hdbconnect::HdbValue

pub enum HdbValue {
    NOTHING,
    NULL,
    TINYINT(u8),
    SMALLINT(i16),
    INT(i32),
    BIGINT(i64),
    DECIMAL(BigDecimal),
    REAL(f32),
    DOUBLE(f64),
    BINARY(Vec<u8>),
    CLOB(CLob),
    NCLOB(NCLob),
    BLOB(BLob),
    BOOLEAN(bool),
    STRING(String),
    LONGDATE(LongDate),
    SECONDDATE(SecondDate),
    DAYDATE(DayDate),
    SECONDTIME(SecondTime),
    GEOMETRY(Vec<u8>),
    POINT(Vec<u8>),
}

Enum for all supported database value types.

Variants

NOTHING

Is swapped in where a real value (any of the others) is swapped out.

NULL

Representation of a database NULL value.

TINYINT(u8)

Stores an 8-bit unsigned integer. The minimum value is 0. The maximum value is 255.

SMALLINT(i16)

Stores a 16-bit signed integer. The minimum value is -32,768. The maximum value is 32,767.

INT(i32)

Stores a 32-bit signed integer. The minimum value is -2,147,483,648. The maximum value is 2,147,483,647.

BIGINT(i64)

Stores a 64-bit signed integer. The minimum value is -9,223,372,036,854,775,808. The maximum value is 9,223,372,036,854,775,807.

DECIMAL(BigDecimal)

Representation for fixed-point decimal values.

REAL(f32)

Stores a single-precision 32-bit floating-point number.

DOUBLE(f64)

Stores a double-precision 64-bit floating-point number. The minimum value is -1.7976931348623157E308, the maximum value is 1.7976931348623157E308 . The smallest positive DOUBLE value is 2.2250738585072014E-308 and the largest negative DOUBLE value is -2.2250738585072014E-308.

BINARY(Vec<u8>)

Stores binary data.

CLOB(CLob)

Stores a large ASCII character string.

NCLOB(NCLob)

Stores a large Unicode string.

BLOB(BLob)

Stores a large binary string.

BOOLEAN(bool)

BOOLEAN stores boolean values, which are TRUE or FALSE.

STRING(String)

The DB returns all Strings as type STRING, independent of the concrete column type.

LONGDATE(LongDate)

Timestamp with 10^-7 seconds precision, uses eight bytes.

SECONDDATE(SecondDate)

TIMESTAMP with second precision.

DAYDATE(DayDate)

DATE with day precision.

SECONDTIME(SecondTime)

TIME with second precision.

GEOMETRY(Vec<u8>)

Spatial type GEOMETRY.

POINT(Vec<u8>)

Spatial type POINT.

Methods

impl HdbValue

pub fn try_into<'x, T: Deserialize<'x>>(self) -> HdbResult<T>

Deserialize into a rust type

pub fn try_into_blob(self) -> HdbResult<BLob>

Convert into hdbconnect::BLob

pub fn try_into_clob(self) -> HdbResult<CLob>

Convert into hdbconnect::CLob

pub fn try_into_nclob(self) -> HdbResult<NCLob>

Convert into hdbconnect::NCLob

pub fn is_null(&self) -> bool

Returns true if the value is a NULL value.

Trait Implementations

impl Clone for HdbValue

fn clone(&self) -> HdbValue

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq<i32> for HdbValue

fn eq(&self, rhs: &i32) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'_> PartialEq<&'_ str> for HdbValue

fn eq(&self, rhs: &&str) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Debug for HdbValue

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

Formats the value using the given formatter.

impl Display for HdbValue

fn fmt(&self, fmt: &mut Formatter) -> Result

Formats the value using the given formatter.

impl DbValue for HdbValue

fn is_null(&self) -> bool

Returns true if this is a NULL value.

fn into_typed<'de, T>(self) -> Result<T, DeserializationError> where
    T: Deserialize<'de>, 

Converts the DbValue into a plain rust value.

impl DbValueInto<bool> for HdbValue

fn try_into(self) -> Result<bool, ConversionError>

Tries to convert into type T.

impl DbValueInto<u8> for HdbValue

fn try_into(self) -> Result<u8, ConversionError>

Tries to convert into type T.

impl DbValueInto<u16> for HdbValue

fn try_into(self) -> Result<u16, ConversionError>

Tries to convert into type T.

impl DbValueInto<u32> for HdbValue

fn try_into(self) -> Result<u32, ConversionError>

Tries to convert into type T.

impl DbValueInto<u64> for HdbValue

fn try_into(self) -> Result<u64, ConversionError>

Tries to convert into type T.

impl DbValueInto<i8> for HdbValue

fn try_into(self) -> Result<i8, ConversionError>

Tries to convert into type T.

impl DbValueInto<i16> for HdbValue

fn try_into(self) -> Result<i16, ConversionError>

Tries to convert into type T.

impl DbValueInto<i32> for HdbValue

fn try_into(self) -> Result<i32, ConversionError>

Tries to convert into type T.

impl DbValueInto<i64> for HdbValue

fn try_into(self) -> Result<i64, ConversionError>

Tries to convert into type T.

impl DbValueInto<f32> for HdbValue

fn try_into(self) -> Result<f32, ConversionError>

Tries to convert into type T.

impl DbValueInto<f64> for HdbValue

fn try_into(self) -> Result<f64, ConversionError>

Tries to convert into type T.

impl DbValueInto<String> for HdbValue

fn try_into(self) -> Result<String, ConversionError>

Tries to convert into type T.

impl DbValueInto<NaiveDateTime> for HdbValue

fn try_into(self) -> Result<NaiveDateTime, ConversionError>

Tries to convert into type T.

impl DbValueInto<Vec<u8>> for HdbValue

fn try_into(self) -> Result<Vec<u8>, ConversionError>

Tries to convert into type T.