Struct BuildReport 

pub struct BuildReport {
    pub tables_mapped: Vec<String>,
    pub tables_empty: Vec<String>,
    pub rows_read: usize,
    pub vertices: usize,
    pub edges: usize,
}

What a build_mutation run actually read.

build_mutation skips a spec table the source does not carry, which is the right default (a partial source yields a partial-but-consistent graph) and is also exactly how an empty graph comes back looking like a successful build: point the source at the wrong namespace and every table is “skipped”, the mutation is empty, and the call returns Ok.

This report is the discrimination. It is carried BESIDE the mutation rather than folded into it, because the mutation is what a sink MERGEs and a report is not.

Fields

tables_mapped: Vec<String>

Spec tables the source carried rows for, in spec order.

tables_empty: Vec<String>

Spec tables the source carried NO rows for — absent, or present with zero rows. These are the ones that silently vanish from an unreported build.

rows_read: usize

Total input rows read across every mapped table.

vertices: usize

Vertex rows in the resulting mutation.

edges: usize

Edge rows in the resulting mutation.

Implementations

impl BuildReport

pub fn require_non_empty(self) -> Result<Self>

The honest one-liner a caller uses instead of trusting Ok.

Ok(self) when at least one spec table contributed rows AND the mutation is non-empty; otherwise a typed crate::error::BifrostError::Source naming every table that came back empty. A build that mapped nothing is not a graph.

Trait Implementations

impl Clone for BuildReport

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BuildReport

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

Formats the value using the given formatter.

impl Default for BuildReport

fn default() -> Self

Returns the “default value” for a type.

impl Eq for BuildReport

impl PartialEq for BuildReport

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BuildReport