Enum cassandra_protocol::frame::message_result::ResResultBody

#[non_exhaustive]
pub enum ResResultBody {
    Void,
    Rows(BodyResResultRows),
    SetKeyspace(BodyResResultSetKeyspace),
    Prepared(BodyResResultPrepared),
    SchemaChange(SchemaChange),
}

ResponseBody is a generalized enum that represents all types of responses. Each of enum option wraps related body type.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Void

Void response body. It’s an empty struct.

Rows(BodyResResultRows)

Rows response body. It represents a body of response which contains rows.

SetKeyspace(BodyResResultSetKeyspace)

Set keyspace body. It represents a body of set_keyspace query and usually contains a name of just set namespace.

Prepared(BodyResResultPrepared)

Prepared response body.

SchemaChange(SchemaChange)

Schema change body

Implementations

impl ResResultBody

pub fn into_rows(self) -> Option<Vec<Row>>

Converts body into Vec<Row> if body’s type is Row and returns None otherwise.

pub fn as_rows_metadata(&self) -> Option<&RowsMetadata>

Returns Some rows metadata if envelope result is of type rows and None otherwise

pub fn into_prepared(self) -> Option<BodyResResultPrepared>

Unwraps body and returns BodyResResultPrepared which contains an exact result of PREPARE query.

pub fn into_set_keyspace(self) -> Option<BodyResResultSetKeyspace>

Unwraps body and returns BodyResResultSetKeyspace which contains an exact result of use keyspace query.

impl ResResultBody

pub fn from_cursor( cursor: &mut Cursor<&[u8]>, version: Version ) -> Result<ResResultBody>

Trait Implementations

impl Clone for ResResultBody

fn clone(&self) -> ResResultBody

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ResResultBody

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

Formats the value using the given formatter.

impl Hash for ResResultBody

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ResResultBody

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ResResultBody

fn serialize(&self, cursor: &mut Cursor<&mut Vec<u8>>, version: Version)

Serializes given value using the cursor.

fn serialize_to_vec(&self, version: Version) -> Vec<u8>

Wrapper for easily starting hierarchical serialization.

impl Eq for ResResultBody

impl StructuralPartialEq for ResResultBody