Enum QueryBuilderValue 

pub enum QueryBuilderValue {
    Bool(Option<bool>),
    TinyInt(Option<i8>),
    SmallInt(Option<i16>),
    Int(Option<i32>),
    BigInt(Option<i64>),
    TinyUnsigned(Option<u8>),
    SmallUnsigned(Option<u16>),
    Unsigned(Option<u32>),
    BigUnsigned(Option<u64>),
    Float(Option<f32>),
    Double(Option<f64>),
    Char(Option<char>),
    String(Option<Box<String>>),
    Bytes(Option<Box<Vec<u8>>>),
    ChronoDate(Option<Box<NaiveDate>>),
    ChronoTime(Option<Box<NaiveTime>>),
    ChronoDateTime(Option<Box<NaiveDateTime>>),
    ChronoDateTimeUtc(Option<Box<DateTime<Utc>>>),
    ChronoDateTimeLocal(Option<Box<DateTime<Local>>>),
    ChronoDateTimeWithTimeZone(Option<Box<DateTime<FixedOffset>>>),
    Uuid(Option<Box<Uuid>>),
    Json(Option<Box<Value>>),
    Decimal(Option<Box<Decimal>>),
    BigDecimal(Option<Box<BigDecimal>>),
    Array(ArrayType, Option<Box<Vec<Value>>>),
}

Available on crate feature database and non-WebAssembly only.

Core value representation for SQL parameters.

This enum represents all possible SQL value types. The enum is designed to be size-optimized: larger types are boxed to maintain a consistent enum size of approximately one pointer width.

Null Values

All variants use Option<T> to represent nullable values. A None value will be rendered as SQL NULL.

Variant Naming Convention

Variant names align with common SQL type names:

Variant	SQL Type	Rust Type
Value::Bool	BOOLEAN	bool
Value::TinyInt	TINYINT	i8
Value::SmallInt	SMALLINT	i16
Value::Int	INTEGER	i32
Value::BigInt	BIGINT	i64
Value::TinyUnsigned	TINYINT UNSIGNED	u8
Value::SmallUnsigned	SMALLINT UNSIGNED	u16
Value::Unsigned	INTEGER UNSIGNED	u32
Value::BigUnsigned	BIGINT UNSIGNED	u64
Value::Float	FLOAT	f32
Value::Double	DOUBLE	f64
Value::Char	CHAR	char
Value::String	VARCHAR/TEXT	String
Value::Bytes	BLOB/BINARY	Vec<u8>

Example

use reinhardt_query::Value;

// Integer types
let int_val = Value::Int(Some(42));
let null_int = Value::Int(None);
let bigint_val = Value::BigInt(Some(9223372036854775807i64));

// String type (boxed for size optimization)
let string_val = Value::String(Some(Box::new("hello".to_string())));

// Check for null
assert!(!int_val.is_null());
assert!(null_int.is_null());

// Convert to SQL literal
assert_eq!(int_val.to_sql_literal(), "42");
assert_eq!(null_int.to_sql_literal(), "NULL");

Feature-Gated Types

Additional types are available with feature flags:

• with-chrono: Date/time types (Value::ChronoDate, Value::ChronoTime, etc.)
• with-uuid: UUID type (Value::Uuid)
• with-json: JSON type (Value::Json)
• with-rust_decimal: Decimal type (Value::Decimal)
• with-bigdecimal: BigDecimal type (Value::BigDecimal)

Variants

Bool(Option<bool>)

Boolean value

TinyInt(Option<i8>)

8-bit signed integer

SmallInt(Option<i16>)

16-bit signed integer

Int(Option<i32>)

32-bit signed integer

BigInt(Option<i64>)

64-bit signed integer

TinyUnsigned(Option<u8>)

8-bit unsigned integer

SmallUnsigned(Option<u16>)

16-bit unsigned integer

Unsigned(Option<u32>)

32-bit unsigned integer

BigUnsigned(Option<u64>)

64-bit unsigned integer

Float(Option<f32>)

32-bit floating point

Double(Option<f64>)

64-bit floating point

Char(Option<char>)

Single character

String(Option<Box<String>>)

String value (boxed)

Bytes(Option<Box<Vec<u8>>>)

Binary data (boxed)

ChronoDate(Option<Box<NaiveDate>>)

Available on crate feature with-chrono only.

Chrono NaiveDate

ChronoTime(Option<Box<NaiveTime>>)

Available on crate feature with-chrono only.

Chrono NaiveTime

ChronoDateTime(Option<Box<NaiveDateTime>>)

Available on crate feature with-chrono only.

Chrono NaiveDateTime

ChronoDateTimeUtc(Option<Box<DateTime<Utc>>>)

Available on crate feature with-chrono only.

Chrono DateTime with UTC timezone

ChronoDateTimeLocal(Option<Box<DateTime<Local>>>)

Available on crate feature with-chrono only.

Chrono DateTime with Local timezone

ChronoDateTimeWithTimeZone(Option<Box<DateTime<FixedOffset>>>)

Available on crate feature with-chrono only.

Chrono DateTime with fixed offset timezone

Uuid(Option<Box<Uuid>>)

Available on crate feature with-uuid only.

UUID value

Json(Option<Box<Value>>)

Available on crate feature with-json only.

JSON value

Decimal(Option<Box<Decimal>>)

Available on crate feature with-rust_decimal only.

Rust Decimal value

BigDecimal(Option<Box<BigDecimal>>)

Available on crate feature with-bigdecimal only.

BigDecimal value

Array(ArrayType, Option<Box<Vec<Value>>>)

Array of values with element type information

Implementations

impl Value

pub fn is_null(&self) -> bool

Returns true if this value is null.

Example

use reinhardt_query::Value;

assert!(Value::Int(None).is_null());
assert!(!Value::Int(Some(42)).is_null());

impl Value

pub fn to_sql_literal(&self) -> String

Convert this value to a SQL literal string suitable for inlining into a SQL statement.

This is used by QueryStatementBuilder::to_string() to produce SQL with values inlined (for debugging and non-parameterized use).

Example

use reinhardt_query::Value;

assert_eq!(Value::Int(Some(42)).to_sql_literal(), "42");
assert_eq!(Value::Int(None).to_sql_literal(), "NULL");
assert_eq!(
    Value::String(Some(Box::new("hello".to_string()))).to_sql_literal(),
    "'hello'"
);
assert_eq!(
    Value::String(Some(Box::new("it's".to_string()))).to_sql_literal(),
    "'it''s'"
);

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl Default for Value

fn default() -> Value

Returns the default value, which is a null string.

impl From<&[u8]> for Value

fn from(v: &[u8]) -> Value

Converts to this type from the input type.

impl From<&str> for Value

fn from(v: &str) -> Value

Converts to this type from the input type.

impl From<BigDecimal> for Value

Available on crate feature with-bigdecimal only.

fn from(v: BigDecimal) -> Value

Converts to this type from the input type.

impl From<DateTime<FixedOffset>> for Value

Available on crate feature with-chrono only.

fn from(v: DateTime<FixedOffset>) -> Value

Converts to this type from the input type.

impl From<DateTime<Local>> for Value

Available on crate feature with-chrono only.

fn from(v: DateTime<Local>) -> Value

Converts to this type from the input type.

impl From<DateTime<Utc>> for Value

Available on crate feature with-chrono only.

fn from(v: DateTime<Utc>) -> Value

Converts to this type from the input type.

impl From<Decimal> for Value

Available on crate feature with-rust_decimal only.

fn from(v: Decimal) -> Value

Converts to this type from the input type.

impl From<NaiveDate> for Value

Available on crate feature with-chrono only.

fn from(v: NaiveDate) -> Value

Converts to this type from the input type.

impl From<NaiveDateTime> for Value

Available on crate feature with-chrono only.

fn from(v: NaiveDateTime) -> Value

Converts to this type from the input type.

impl From<NaiveTime> for Value

Available on crate feature with-chrono only.

fn from(v: NaiveTime) -> Value

Converts to this type from the input type.

impl From<String> for Value

fn from(v: String) -> Value

Converts to this type from the input type.

impl From<Uuid> for Value

Available on crate feature with-uuid only.

fn from(v: Uuid) -> Value

Converts to this type from the input type.

impl From<Value> for SimpleExpr

fn from(v: Value) -> SimpleExpr

Converts to this type from the input type.

impl From<Value> for Value

Available on crate feature with-json only.

fn from(v: Value) -> Value

Converts to this type from the input type.

impl From<Vec<u8>> for Value

fn from(v: Vec<u8>) -> Value

Converts to this type from the input type.

impl From<bool> for Value

fn from(v: bool) -> Value

Converts to this type from the input type.

impl From<char> for Value

fn from(v: char) -> Value

Converts to this type from the input type.

impl From<f32> for Value

fn from(v: f32) -> Value

Converts to this type from the input type.

impl From<f64> for Value

fn from(v: f64) -> Value

Converts to this type from the input type.

impl From<i16> for Value

fn from(v: i16) -> Value

Converts to this type from the input type.

impl From<i32> for Value

fn from(v: i32) -> Value

Converts to this type from the input type.

impl From<i64> for Value

fn from(v: i64) -> Value

Converts to this type from the input type.

impl From<i8> for Value

fn from(v: i8) -> Value

Converts to this type from the input type.

impl From<u16> for Value

fn from(v: u16) -> Value

Converts to this type from the input type.

impl From<u32> for Value

fn from(v: u32) -> Value

Converts to this type from the input type.

impl From<u64> for Value

fn from(v: u64) -> Value

Converts to this type from the input type.

impl From<u8> for Value

fn from(v: u8) -> Value

Converts to this type from the input type.

impl IntoValue for Value

fn into_value(self) -> Value

Converts this value into a Value.

impl PartialEq for Value

fn eq(&self, other: &Value) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Value