Struct pancake_engine_serial::DB

pub struct DB {
    _lock_dir: File,
    prim_lsm: LSMTree<PKShared, PVShared>,
    scnd_idxs: HashMap<Arc<SubValueSpec>, SecondaryIndex>,
    all_scnd_idxs_parent_dir: AntiCollisionParentDir,
}

Fields

_lock_dir: File

prim_lsm: LSMTree<PKShared, PVShared>

scnd_idxs: HashMap<Arc<SubValueSpec>, SecondaryIndex>

all_scnd_idxs_parent_dir: AntiCollisionParentDir

Implementations

impl DB

pub fn load_or_new<P: AsRef<Path>>(db_dir_path: P) -> Result<DB>

pub fn put(&mut self, pk: PKShared, pv: Option<PVShared>) -> Result<()>

pub fn get_pk_one<'a>( &'a self, pk: &'a PrimaryKey ) -> Option<Entry<'a, PKShared, PVShared>>

pub fn get_pk_range<'a>( &'a self, pk_lo: Option<&'a PrimaryKey>, pk_hi: Option<&'a PrimaryKey> ) -> impl 'a + Iterator<Item = Entry<'a, PKShared, PVShared>>

pub fn get_sv_range<'a>( &'a self, spec: &'a SubValueSpec, sv_lo: Option<&'a SubValue>, sv_hi: Option<&'a SubValue> ) -> Result<impl 'a + Iterator<Item = Entry<'a, PKShared, PVShared>>>

pub fn create_scnd_idx(&mut self, spec: Arc<SubValueSpec>) -> Result<()>

pub fn delete_scnd_idx(&mut self, spec: &SubValueSpec) -> Result<()>