Struct JsonArray 

pub struct JsonArray { /* private fields */ }

A specialized array for JSON data stored as JSONB binary format

Implementations

impl JsonArray

pub fn try_from_iter<I, S>(iter: I) -> Result<Self, ArrowError>

where I: IntoIterator<Item = Option<S>>, S: AsRef<str>,

Create a new JsonArray from an iterator of JSON strings

pub fn into_inner(self) -> LargeBinaryArray

Get the underlying LargeBinaryArray

pub fn inner(&self) -> &LargeBinaryArray

Get a reference to the underlying LargeBinaryArray

pub fn value(&self, i: usize) -> Result<String, ArrowError>

Get the value at index i as decoded JSON string

pub fn value_bytes(&self, i: usize) -> &[u8]

Get the value at index i as raw JSONB bytes

pub fn json_path( &self, i: usize, path: &str, ) -> Result<Option<String>, ArrowError>

Get JSONPath value from the JSON at index i

pub fn to_arrow_json(&self) -> Result<ArrayRef, ArrowError>

Convert to Arrow string array (JSON as UTF-8)

Trait Implementations

impl Array for JsonArray

fn as_any(&self) -> &dyn Any

Returns the array as Any so that it can be downcasted to a specific implementation.

fn to_data(&self) -> ArrayData

Returns the underlying data of this array

fn into_data(self) -> ArrayData

Returns the underlying data of this array

fn data_type(&self) -> &DataType

Returns a reference to the DataType of this array.

fn slice(&self, offset: usize, length: usize) -> ArrayRef

Returns a zero-copy slice of this array with the indicated offset and length.

fn len(&self) -> usize

Returns the length (i.e., number of elements) of this array.

fn is_empty(&self) -> bool

Returns whether this array is empty.

fn offset(&self) -> usize

Returns the offset into the underlying data used by this array(-slice). Note that the underlying data can be shared by many arrays. This defaults to 0.

fn nulls(&self) -> Option<&NullBuffer>

Returns the null buffer of this array if any.

fn get_buffer_memory_size(&self) -> usize

Returns the total number of bytes of memory pointed to by this array. The buffers store bytes in the Arrow memory format, and include the data as well as the validity map. Note that this does not always correspond to the exact memory usage of an array, since multiple arrays can share the same buffers or slices thereof.

fn get_array_memory_size(&self) -> usize

Returns the total number of bytes of memory occupied physically by this array. This value will always be greater than returned by get_buffer_memory_size() and includes the overhead of the data structures that contain the pointers to the various buffers.

fn shrink_to_fit(&mut self)

Shrinks the capacity of any exclusively owned buffer as much as possible

fn logical_nulls(&self) -> Option<NullBuffer>

Returns a potentially computed NullBuffer that represents the logical null values of this array, if any.

fn is_null(&self, index: usize) -> bool

Returns whether the element at index is null according to Array::nulls

fn is_valid(&self, index: usize) -> bool

Returns whether the element at index is not null, the opposite of Self::is_null.

fn null_count(&self) -> usize

Returns the total number of physical null values in this array.

fn logical_null_count(&self) -> usize

Returns the total number of logical null values in this array.

fn is_nullable(&self) -> bool

Returns false if the array is guaranteed to not contain any logical nulls

impl Clone for JsonArray

fn clone(&self) -> JsonArray

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JsonArray

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

Formats the value using the given formatter.

impl TryFrom<&GenericByteArray<GenericStringType<i32>>> for JsonArray

type Error = ArrowError

The type returned in the event of a conversion error.

fn try_from(array: &StringArray) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&GenericByteArray<GenericStringType<i64>>> for JsonArray

type Error = ArrowError

The type returned in the event of a conversion error.

fn try_from(array: &LargeStringArray) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Arc<dyn Array>> for JsonArray

type Error = ArrowError

The type returned in the event of a conversion error.

fn try_from(array_ref: ArrayRef) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<GenericByteArray<GenericStringType<i32>>> for JsonArray

type Error = ArrowError

The type returned in the event of a conversion error.

fn try_from(array: StringArray) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<GenericByteArray<GenericStringType<i64>>> for JsonArray

type Error = ArrowError

The type returned in the event of a conversion error.

fn try_from(array: LargeStringArray) -> Result<Self, Self::Error>

Performs the conversion.