Trait CompactionFilter 

pub trait CompactionFilter: Send {
    // Required method
    fn filter_item(
        &mut self,
        item: ItemAccessor<'_>,
        ctx: &Context,
    ) -> Result<Verdict>;

    // Provided method
    fn finish(self: Box<Self>) { ... }
}

Trait to implement custom compaction filters

Required Methods

fn filter_item( &mut self, item: ItemAccessor<'_>, ctx: &Context, ) -> Result<Verdict>

Returns whether an item should be kept during compaction.

Panicking

This function should NOT panic.

Errors

Returning an error will abort the running compaction. This should only be done when strictly necessary, such as when fetching a value fails.

Provided Methods

fn finish(self: Box<Self>)

Called when compaction is finished.

Panicking

This function should NOT panic.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors