Trait DynTreeNode

pub trait DynTreeNode {
    // Required methods
    fn arc_children(&self) -> Vec<&Arc<Self>>;
    fn with_new_arc_children(
        &self,
        arc_self: Arc<Self>,
        new_children: Vec<Arc<Self>>,
    ) -> Result<Arc<Self>, DataFusionError>;
}

Helper trait for implementing TreeNode that have children stored as Arcs. If some trait object, such as dyn T, implements this trait, its related Arc<dyn T> will automatically implement TreeNode.

Required Methods

fn arc_children(&self) -> Vec<&Arc<Self>>

Returns all children of the specified TreeNode.

fn with_new_arc_children( &self, arc_self: Arc<Self>, new_children: Vec<Arc<Self>>, ) -> Result<Arc<Self>, DataFusionError>

Constructs a new node with the specified children.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl DynTreeNode for dyn PhysicalExpr

fn arc_children(&self) -> Vec<&Arc<dyn PhysicalExpr>>

fn with_new_arc_children( &self, arc_self: Arc<dyn PhysicalExpr>, new_children: Vec<Arc<dyn PhysicalExpr>>, ) -> Result<Arc<dyn PhysicalExpr>, DataFusionError>

impl DynTreeNode for dyn ExecutionPlan

fn arc_children(&self) -> Vec<&Arc<dyn ExecutionPlan>>

fn with_new_arc_children( &self, arc_self: Arc<dyn ExecutionPlan>, new_children: Vec<Arc<dyn ExecutionPlan>>, ) -> Result<Arc<dyn ExecutionPlan>, DataFusionError>

Implementors