Struct Digest 

pub struct Digest { /* private fields */ }

Wrap the pointer of a RedisModuleDigest

Implementations

impl Digest

pub fn add_string<T: AsRef<str>>(&mut self, s: T)

Add a new element to the digest. This function can be called multiple times one element after the other, for all the elements that constitute a given data structure. The function call must be followed by the call to RedisModule_DigestEndSequence eventually, when all the elements that are always in a given order are added. See the Redis Modules data types documentation for more info. However this is a quick example that uses Redis data types as an example.

To add a sequence of unordered elements (for example in the case of a Redis Set), the pattern to use is:

foreach element {
    AddElement(element);
    EndSequence();
}

Because Sets are not ordered, so every element added has a position that does not depend from the other. However if instead our elements are ordered in pairs, like field-value pairs of an Hash, then one should use:

foreach key,value {
    AddElement(key);
    AddElement(value);
    EndSquence();
}

Because the key and value will be always in the above order, while instead the single key-value pairs, can appear in any position into a Redis hash.

A list of ordered elements would be implemented with:

foreach element {
    AddElement(element);
}
EndSequence();

pub fn add_integer(&mut self, i: i64)

Like Digest::digest_add_string_buffer but takes a long long as input that gets converted into a string before adding it to the digest.

pub fn end_sequeue(&mut self)

See Context:add_string_buffer

Trait Implementations

impl FromPtr for Digest

type PtrType = RedisModuleDigest

fn from_ptr(ptr: *mut RedisModuleDigest) -> Digest

impl GetPtr for Digest

type PtrType = RedisModuleDigest

fn get_ptr(&self) -> *mut Self::PtrType