Struct cassandra_cpp::CassResult

pub struct CassResult(_);

The result of a query. A result object is read-only and is thread-safe to read or iterate over concurrently, since we do not bind any setters (e.g., set_metadata).

Implementations

impl CassResult

pub fn row_count(&self) -> u64

Gets the number of rows for the specified result.

pub fn column_count(&self) -> u64

Gets the number of columns per row for the specified result.

pub fn column_name(&self, index: usize) -> Result<&str>

Gets the column name at index for the specified result.

pub fn column_type(&self, index: usize) -> ValueType

Gets the column type at index for the specified result.

pub fn column_data_type(&self, index: usize) -> ConstDataType

Gets the column datatype at index for the specified result.

pub fn first_row(&self) -> Option<Row<'_>>

Gets the first row of the result.

pub fn has_more_pages(&self) -> bool

Returns true if there are more pages.

pub fn paging_state_token(&self) -> Result<Option<Vec<u8>>>

Gets the statement’s paging state. This can be used to get the next page of data in a multi-page query, by using set_paging_state_token.

Returns:

• Ok(None) if there are no more pages, and thus no paging state token.
• Ok(Some(Vec<u8>)) if there are more pages, and a paging state token.
• Err(_) if there was an error getting the paging state token.

pub fn iter(&self) -> ResultIterator<'_>

Creates a new iterator for the specified result. This can be used to iterate over rows in the result.

Trait Implementations

impl Debug for CassResult

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

Formats the value using the given formatter.

impl Display for CassResult

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

Formats the value using the given formatter.

impl Drop for CassResult

fn drop(&mut self)

Executes the destructor for this type.

impl<'a> IntoIterator for &'a CassResult

type Item = Row<'a>

The type of the elements being iterated over.

type IntoIter = ResultIterator<'a>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl Send for CassResult

impl Sync for CassResult