Method append_value

arrow-flight/src/sql/metadata/sql_info.rs:226–273

Append the specified value to this builder

(&mut self, v: &SqlInfoValue)

    /// Append the specified value to this builder
    pub fn append_value(&mut self, v: &SqlInfoValue) -> Result<()> {
        // typeid is which child and len is the child array's length
        // *after* adding the value
        let (type_id, len) = match v {
            SqlInfoValue::String(v) => {
                self.string_values.append_value(v);
                (0, self.string_values.len())
            }
            SqlInfoValue::Bool(v) => {
                self.bool_values.append_value(*v);
                (1, self.bool_values.len())
            }
            SqlInfoValue::BigInt(v) => {
                self.bigint_values.append_value(*v);
                (2, self.bigint_values.len())
            }
            SqlInfoValue::Bitmask(v) => {
                self.int32_bitmask_values.append_value(*v);
                (3, self.int32_bitmask_values.len())
            }
            SqlInfoValue::StringList(values) => {
                // build list
                for v in values {
                    self.string_list_values.values().append_value(v);
                }
                // complete the list
                self.string_list_values.append(true);
                (4, self.string_list_values.len())
            }
            SqlInfoValue::ListMap(values) => {
                // build map
                for (k, v) in values.clone() {
                    self.int32_to_int32_list_map_values.keys().append_value(k);
                    self.int32_to_int32_list_map_values
                        .values()
                        .append_value(v.into_iter().map(Some));
                }
                // complete the list
                self.int32_to_int32_list_map_values.append(true)?;
                (5, self.int32_to_int32_list_map_values.len())
            }
        };

        self.type_ids.append_value(type_id);
        let len = i32::try_from(len).expect("offset fit in i32");
        self.offsets.append_value(len - 1);
        Ok(())
    }

    /// Complete the construction and build the [`UnionArray`]
    pub fn finish(self) -> UnionArray {