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SegmentAdvice

hopper_schema

Struct SegmentAdvice 

Source 
pub struct SegmentAdvice {
    pub id: [u8; 4],
    pub size: u32,
    pub role: SegmentRoleHint,
    pub must_preserve: bool,
    pub clearable: bool,
    pub rebuildable: bool,
    pub append_only: bool,
    pub immutable: bool,
}
Expand description

Migration advice for a single segment.

Fields§

§id: [u8; 4]

Segment ID bytes.

§size: u32

Byte size.

§role: SegmentRoleHint

Decoded role.

§must_preserve: bool

Must be preserved across migration (data cannot be lost).

§clearable: bool

Can be cleared and rebuilt from other data.

§rebuildable: bool

Can be rebuilt from on-chain state (index, cache).

§append_only: bool

Append-only: only new entries allowed, no mutations.

§immutable: bool

Immutable after init (Audit segments).

Trait Implementations§

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impl Clone for SegmentAdvice

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fn clone(&self) -> SegmentAdvice

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for SegmentAdvice

Auto Trait Implementations§

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.