Struct BoxEntry 

pub struct BoxEntry(/* private fields */);

A heap-allocated Entry wrapper that uses dynamic dispatch.

While somewhat slower than a statically-dispatched entries, an crate::EntrySink of boxed entries can be heterogeneous rather than requiring all entries to be the same type. This is especially useful for “global” background queues that will consume entries from many different components.

Implementations

impl BoxEntry

pub fn new(entry: impl Entry + Send + 'static) -> BoxEntry

Move the entry to the heap and enable dynamic dispatch.

pub fn inner(&self) -> &(dyn Any + Send + 'static)

Returns a reference to the inner Entry value, which can be used with Any to extract a typed reference.

pub fn inner_mut(&mut self) -> &mut (dyn Any + Send + 'static)

Returns a mutable reference to the inner Entry value, which can be used with Any to extract a typed reference.

Trait Implementations

impl Entry for BoxEntry

fn write<'a>(&'a self, writer: &mut impl EntryWriter<'a>)

Write the metric values contained in this entry to the format-provided EntryWriter. The writer corresponds to an atomic entry written to the metrics consumer, like CloudWatch.

fn sample_group( &self, ) -> impl Iterator<Item = (Cow<'static, str>, Cow<'static, str>)>

The key used to group “similar” entries when sampling. Defaults to the empty group.

fn merge<E>(self, other: E) -> Merged<Self, E>

where Self: Sized,

Create a new entry that writes all the contents of this entry and then all of the contents of other.

fn merge_by_ref<'a, E>(&'a self, other: &'a E) -> MergedRef<'a, Self, E>

where E: 'a + Entry,

Like Entry::merge, but does so by reference.

fn boxed(self) -> BoxEntry

where Self: Sized + Send + 'static,

Move the entry to the heap and rely on dynamic dispatch.