Struct Hashmap

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pub struct Hashmap<T> { /* private fields */ }
Expand description

Hashmap opened by RedisObjects::hashmap

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impl<T: Serialize + DeserializeOwned> Hashmap<T>

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pub async fn add(&self, key: &str, value: &T) -> Result<bool, ErrorTypes>

Add the (key, value) pair to the hash for new keys. If a key already exists this operation doesn’t add it. Returns true if key has been added to the table, False otherwise.

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pub async fn increment( &self, key: &str, increment: i64, ) -> Result<i64, ErrorTypes>

Increment a key within a hash by the given delta

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pub async fn exists(&self, key: &str) -> Result<bool, ErrorTypes>

Test if a given key is defind within this hash

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pub async fn get(&self, key: &str) -> Result<Option<T>, ErrorTypes>

Read the value stored at the given key

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pub async fn get_raw(&self, key: &str) -> Result<Option<Vec<u8>>, ErrorTypes>

Read the value stored at the given key

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pub async fn keys(&self) -> Result<Vec<String>, ErrorTypes>

Load all keys from the hash

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pub async fn length(&self) -> Result<u64, ErrorTypes>

Read the number of items in the hash

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pub async fn items(&self) -> Result<HashMap<String, T>, ErrorTypes>

Download the entire hash into memory

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pub async fn conditional_remove( &self, key: &str, value: &T, ) -> Result<bool, ErrorTypes>

Remove an item, but only if its value is as given

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pub async fn pop(&self, key: &str) -> Result<Option<T>, ErrorTypes>

Remove and return the item in the hash if found

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pub async fn set(&self, key: &str, value: &T) -> Result<i64, ErrorTypes>

Unconditionally overwrite the value stored at a given key

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pub async fn delete(&self) -> Result<(), ErrorTypes>

Clear the content of this hash

Trait Implementations§

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impl<T: Clone> Clone for Hashmap<T>

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fn clone(&self) -> Hashmap<T>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl<T> Freeze for Hashmap<T>

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impl<T> !RefUnwindSafe for Hashmap<T>

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impl<T> Send for Hashmap<T>
where T: Send,

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impl<T> Sync for Hashmap<T>
where T: Sync,

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impl<T> Unpin for Hashmap<T>
where T: Unpin,

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impl<T> !UnwindSafe for Hashmap<T>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> ErasedDestructor for T
where T: 'static,