Enum tinycdb_sys::CdbPutMode

#[repr(C)]pub enum CdbPutMode {
    Add,
    Replace,
    Insert,
    Warn,
    Replace0,
}

CdbPutMode represents the different behaviours that will be used when inserting a key into a database where the key already exists.

Variants

Add

No duplicate checking will be performed. This is the same as just calling CdbCreator.add().

Replace

If the key already exists in the database, it will be removed prior to adding the new value. This can be quite slow if the file is large, due to having to copy data around.

Insert

Insert the key into the database only if the key does not already exist. Note that since a simple query of the database only returns the first key, this is really only useful to save space in the database.

Warn

Add the key to the database unconditionally, but also check if it already existed.

TODO: what return value does put give?

Replace0

If the key already exists in the database, zero it out before adding this key/value pair. See the comments on CdbCreator.remove() for some caveats regarding zeroing out keys in the database.

Trait Implementations

impl Clone for CdbPutMode

fn clone(&self) -> CdbPutMode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for CdbPutMode

impl Debug for CdbPutMode

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

Formats the value using the given formatter.

impl Eq for CdbPutMode

impl PartialEq<CdbPutMode> for CdbPutMode

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for CdbPutMode

impl StructuralPartialEq for CdbPutMode