Struct fastly::handle::dictionary::DictionaryHandle

#[repr(transparent)]
pub struct DictionaryHandle { /* private fields */ }

A low-level interface to Edge Dictionaries.

Unlike the high-level Dictionary, this type has methods that return Result values upon failure, rather than panicking. Additionally, the get() method allows the caller to configure the size of the buffer used to received lookup results from the host.

Implementations

impl DictionaryHandle

pub const INVALID: Self

An invalid handle.

pub fn open(name: &str) -> Result<Self, OpenError>

Acquire a handle to an Edge Dictionary.

If a handle could not be acquired, an OpenError will be returned.

pub fn get(
    &self,
    key: &str,
    max_len: usize
) -> Result<Option<String>, LookupError>

Lookup a value in this dictionary.

If successful, this function returns Ok(Some(_)) if an entry was found, or Ok(None) if no entry with the given key was found. If the lookup failed, a LookupError will be returned.

pub fn contains(&self, key: &str) -> Result<bool, LookupError>

Return true if the dictionary contains an entry with the given key.

pub fn is_valid(&self) -> bool

Return true if the request handle is valid.

pub fn is_invalid(&self) -> bool

Return true if the request handle is invalid.

Trait Implementations

impl Debug for DictionaryHandle

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

Formats the value using the given formatter.

impl Hash for DictionaryHandle

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<DictionaryHandle> for DictionaryHandle

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

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

fn ne(&self, other: &DictionaryHandle) -> bool

This method tests for !=.

impl Eq for DictionaryHandle

impl StructuralEq for DictionaryHandle

impl StructuralPartialEq for DictionaryHandle