Struct Index 

pub struct Index { /* private fields */ }

Index

Implementations

impl Index

pub const fn new(fields: &'static [&'static str], unique: bool) -> Self

Build one index declaration from field-list and uniqueness metadata.

pub const fn new_with_predicate( fields: &'static [&'static str], unique: bool, predicate: Option<&'static str>, ) -> Self

Build one index declaration with optional conditional predicate metadata.

pub const fn fields(&self) -> &'static [&'static str]

Borrow index field sequence.

pub const fn is_unique(&self) -> bool

Return whether the index enforces uniqueness.

pub const fn predicate(&self) -> Option<&'static str>

Return optional conditional-index predicate metadata.

pub fn is_prefix_of(&self, other: &Self) -> bool

Trait Implementations

impl Clone for Index

fn clone(&self) -> Index

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Index

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

Formats the value using the given formatter.

impl Display for Index

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

Formats the value using the given formatter.

impl MacroNode for Index

fn as_any(&self) -> &dyn Any

impl Serialize for Index

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ValidateNode for Index

fn validate(&self) -> Result<(), ErrorTree>

impl VisitableNode for Index

fn route_key(&self) -> String

fn accept<V: Visitor>(&self, visitor: &mut V)

fn drive<V: Visitor>(&self, _: &mut V)