Struct BucketRwImpl

pub struct BucketRwImpl<'tx: 'p, 'p> { /* private fields */ }

Read/Write Bucket

Trait Implementations

impl<'tx, 'p> BucketApi<'tx> for BucketRwImpl<'tx, 'p>

fn root(&self) -> PgId

Returns the bucket’s root page id.

fn writable(&self) -> bool

Returns whether the bucket is writable.

fn cursor<'a>(&'a self) -> CursorImpl<'tx, 'a>

Creates a cursor associated with the bucket.

fn bucket<'a, T: AsRef<[u8]>>(&'a self, name: T) -> Option<BucketImpl<'tx, 'a>>

Retrieves a nested bucket by name.

fn get<T: AsRef<[u8]>>(&self, key: T) -> Option<&[u8]>

Retrieves the value for a key in the bucket.

fn sequence(&self) -> u64

Returns the current integer for the bucket without incrementing it.

fn for_each<F: FnMut(&'tx [u8], Option<&'tx [u8]>) -> Result<()>>( &self, f: F, ) -> Result<()>

👎Deprecated since 1.3.9: please use iter_* methods instead

Executes a function for each key/value pair in a bucket. Because this uses a crate::CursorApi, the iteration over keys is in lexicographical order.

fn for_each_bucket<F: FnMut(&'tx [u8]) -> Result<()>>(&self, f: F) -> Result<()>

👎Deprecated since 1.3.9: please use iter_* methods instead

Executes a function for each bucket in a bucket. Because this function uses a crate::CursorApi, the iteration over keys is in lexicographical order.

fn stats(&self) -> BucketStats

Returns stats on a bucket.

fn iter_entries<'a>(&'a self) -> EntryIter<'tx, 'a>

fn iter_buckets<'a>(&'a self) -> BucketIter<'tx, 'a>

impl<'tx, 'p> BucketRwApi<'tx> for BucketRwImpl<'tx, 'p>

fn bucket_mut<'a, T: AsRef<[u8]>>( &'a mut self, name: T, ) -> Option<BucketRwImpl<'tx, 'a>>

Retrieves a nested mutable bucket by name.

fn create_bucket<'a, T: AsRef<[u8]>>( &'a mut self, key: T, ) -> Result<BucketRwImpl<'tx, 'a>>

Creates a new bucket at the given key and returns the new bucket.

fn create_bucket_if_not_exists<'a, T: AsRef<[u8]>>( &'a mut self, key: T, ) -> Result<BucketRwImpl<'tx, 'a>>

CreateBucketIfNotExists creates a new bucket if it doesn’t already exist and returns a reference to it.

fn cursor_mut<'a>(&'a self) -> CursorRwImpl<'tx, 'a>

Cursor creates a cursor associated with the bucket.

fn delete_bucket<T: AsRef<[u8]>>(&mut self, key: T) -> Result<()>

Deletes a bucket at the given key.

fn put<T: AsRef<[u8]>, U: AsRef<[u8]>>(&mut self, key: T, data: U) -> Result<()>

Sets the value for a key in the bucket.

fn delete<T: AsRef<[u8]>>(&mut self, key: T) -> Result<()>

Removes a key from the bucket.

fn set_sequence(&mut self, v: u64) -> Result<()>

Updates the sequence number for the bucket.

fn next_sequence(&mut self) -> Result<u64>

Returns the auto-incremented integer for the bucket.

fn set_fill_percent(&mut self, fill_percent: f64)

Set the fill percent of the bucket

fn iter_mut_buckets<'a>(&'a mut self) -> BucketIterMut<'tx, 'a>

fn rev_iter_mut_buckets<'a>(&'a mut self) -> BucketIterMut<'tx, 'a>