Struct ScanFilter 

pub struct ScanFilter {
    pub field: String,
    pub op: FilterOp,
    pub value: Value,
    pub clauses: Vec<Vec<ScanFilter>>,
}

A single filter predicate for document scan evaluation.

Supports simple comparison operators (eq, ne, gt, gte, lt, lte, contains, is_null, is_not_null) and disjunctive groups via the "or" operator.

OR representation: {"op": "or", "clauses": [[filter1, filter2], [filter3]]} means (filter1 AND filter2) OR filter3. Each clause is an AND-group; the document matches if ANY clause group fully matches.

Fields

field: String

op: FilterOp

value: Value

clauses: Vec<Vec<ScanFilter>>

Disjunctive clause groups for OR predicates. Each inner Vec is an AND-group. The document matches if ANY group matches.

Implementations

impl ScanFilter

pub fn matches_binary(&self, doc: &[u8]) -> bool

Evaluate this filter against a raw MessagePack document.

Zero deserialization — extracts only the needed field bytes.

pub fn matches_binary_indexed(&self, doc: &[u8], idx: &FieldIndex) -> bool

Evaluate using a pre-built FieldIndex for O(1) field lookup.

Use when evaluating multiple predicates on the same document.

impl ScanFilter

pub fn matches_value(&self, doc: &Value) -> bool

Evaluate this filter against a nodedb_types::Value document.

Same semantics as matches() but operates on the native Value type instead of serde_json::Value, avoiding lossy JSON roundtrips.

Trait Implementations

impl Clone for ScanFilter

fn clone(&self) -> ScanFilter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for ScanFilter

fn default() -> ScanFilter

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ScanFilter

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a> FromMessagePack<'a> for ScanFilter

fn read<R: Read<'a>>(reader: &mut R) -> Result<Self>

Reads the MessagePack representation of this value from the provided reader.

impl Serialize for ScanFilter

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToMessagePack for ScanFilter

fn write<W: Write>(&self, writer: &mut W) -> Result<()>

Writes the MessagePack representation of this value into the provided writer.