Method GetByKey

tools/cache/mutation_cache.go:90–114

GetByKey is never guaranteed to return back the value set in Mutation. It could be paged out, it could be older than another copy, the backingCache may be more recent or, you might have written twice into the same key. You get a value that was valid at some snapshot of time and will always return t

(key string)

// be older than another copy, the backingCache may be more recent or, you might have written twice into the same key.
// You get a value that was valid at some snapshot of time and will always return the newer of backingCache and mutationCache.
func (c *mutationCache) GetByKey(key string) (interface{}, bool, error) {
	c.lock.Lock()
	defer c.lock.Unlock()

	obj, exists, err := c.backingCache.GetByKey(key)
	if err != nil {
		return nil, false, err
	}
	if !exists {
		if !c.includeAdds {
			// we can't distinguish between, "didn't observe create" and "was deleted after create", so
			// if the key is missing, we always return it as missing
			return nil, false, nil
		}
		obj, exists = c.mutationCache.Get(key)
		if !exists {
			return nil, false, nil
		}
	}
	objRuntime, ok := obj.(runtime.Object)
	if !ok {
		return obj, true, nil
	}
	return c.newerObject(key, objRuntime), true, nil
}

// ByIndex returns the newer objects that match the provided index and indexer key.
// Will return an error if no indexer was provided.