Struct ZipColumnsSpec 

pub struct ZipColumnsSpec {
    pub columns_path: String,
    pub rows_path: String,
    pub groups: Vec<ColumnGroupSpec>,
}

Available on crate feature transform-zip-columns only.

User-facing zip_columns config.

Fields

columns_path: String

JSONPath to the column names. Point it at the name of each column descriptor (columns[*].name) or at a plain array of strings (columns). Every matched value must be a string. Set exactly one of columns_path or groups.

rows_path: String

JSONPath to the rows. With columns_path, an array of positional value-arrays (rows or rows[*]), each exactly as wide as the column list. With groups, the row objects (rows[*]).

groups: Vec<ColumnGroupSpec>

Column groups (#746): each row object holds several positional cell arrays, each named by its own header list (a runReport-style dimensionValues / metricValues pair). Every group is zipped on its own and the results are merged into one record; two groups naming the same column is an error.

Implementations

impl ZipColumnsSpec

pub fn compile(&self) -> Result<CompiledZipColumns, FaucetError>

Validate the spec, returning a reusable CompiledZipColumns.

pub fn into_stage(&self) -> Result<TransformStage, FaucetError>

Compile and wrap as a TransformStage::PageFn (1→0..N per record, fallible on a row/column width mismatch).

Trait Implementations

impl Clone for ZipColumnsSpec

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 ZipColumnsSpec

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ZipColumnsSpec

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for ZipColumnsSpec

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for ZipColumnsSpec

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ZipColumnsSpec

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 ZipColumnsSpec