Method num_fields

arrow-array/src/builder/struct_builder.rs:204–206

Returns the number of fields for the struct this builder is building.

(&self)

    /// Returns the number of fields for the struct this builder is building.
    pub fn num_fields(&self) -> usize {
        self.field_builders.len()
    }

    /// Returns the fields for the struct this builder is building.
    pub fn fields(&self) -> &Fields {