Struct Storage

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pub struct Storage { /* private fields */ }

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impl Storage

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pub fn create(file: File, schema: &str) -> Result<Storage>

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pub fn persist(&mut self) -> Result<()>

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pub fn open(file: File) -> Result<Storage>

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pub fn insert(&mut self, tuple: &mut Tuple) -> Result<(), SchemaError>

Insert does not allow duplicate key and inserts the Tuple in the set in a sorted way

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pub fn append(&mut self, tuple: &mut Tuple) -> Result<(), SchemaError>

Append allows duplicate key

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pub fn update(&mut self, tuple: &mut Tuple) -> Result<usize, SchemaError>

Update all tuples matching the key

returns how many tuples were updated

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pub fn remove_all(&mut self, filter: &Filter) -> usize

Remove all tuples matching the key. Working from the end to the front of the Storage.

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pub fn remove(&mut self, filter: &Filter) -> usize

Delete all tuples matching the key sorted

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pub fn iter(&self) -> StorageIterator<'_>

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pub fn get(&self, offset: u64) -> Option<Tuple>

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pub fn create_filter(&self, filter: &str) -> Result<Filter, SchemaParseError>

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pub fn schema_to_string(&self) -> String

Trait Implementations§

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impl Debug for Storage

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

Formats the value using the given formatter. Read more
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impl Drop for Storage

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl PartialEq for Storage

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

Auto Trait 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> 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, 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.