Struct NodePattern 

pub struct NodePattern {
    pub alias: Option<String>,
    pub labels: Vec<String>,
    pub properties: HashMap<String, Value>,
    pub collection: Option<String>,
}

A node pattern in a graph query.

Fields

alias: Option<String>

Optional alias (e.g., n in (n:Person)).

labels: Vec<String>

Node labels (e.g., ["Person", "Author"]).

properties: HashMap<String, Value>

Node properties for filtering.

collection: Option<String>

Optional source collection override for cross-collection MATCH.

When set, this node’s data is resolved from the named collection instead of the MATCH query’s default collection. Enables patterns like: MATCH (p:Product@products)-[:STORED_IN]->(inv:Inventory@inventory)

When None, the node is resolved from the default collection.

Implementations

impl NodePattern

pub fn new() -> Self

Creates a new empty node pattern.

pub fn with_alias(self, alias: impl Into<String>) -> Self

Sets the alias.

pub fn with_label(self, label: impl Into<String>) -> Self

Adds a label.

pub fn with_collection(self, collection: impl Into<String>) -> Self

Sets the source collection for cross-collection MATCH.

Trait Implementations

impl Clone for NodePattern

fn clone(&self) -> NodePattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NodePattern

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

Formats the value using the given formatter.

impl Default for NodePattern

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for NodePattern

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for NodePattern

fn eq(&self, other: &NodePattern) -> 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 Serialize for NodePattern

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for NodePattern