Struct WalSegmentPointer 

pub struct WalSegmentPointer {
    pub segment_id: WalSegmentId,
    pub start_seq: ChangeSeq,
    pub end_seq: ChangeSeq,
    pub payload_checksum: String,
}

Links one accepted WAL segment identity to its verified sequence range.

Pointers in immutable WAL segments accept unknown fields. The mutable head uses a strict decoder for the same shape so a rewrite cannot discard data. Both decoders reject a pointer whose segment_id does not encode its start_seq.

See WAL segment rules.

Fields

segment_id: WalSegmentId

Segment identity used to derive the immutable object key and expected to agree with the decoded payload.

start_seq: ChangeSeq

First logical commit sequence carried by the segment.

end_seq: ChangeSeq

Final logical commit sequence carried by the segment.

payload_checksum: String

Checksum of the referenced segment’s payload bytes, in sha256:<hex> form. Must equal the payload_checksum in the referenced envelope.

Trait Implementations

impl Clone for WalSegmentPointer

fn clone(&self) -> WalSegmentPointer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WalSegmentPointer

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WalSegmentPointer

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Decodes a pointer and verifies that its id matches start_seq.

impl Eq for WalSegmentPointer

impl PartialEq for WalSegmentPointer

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for WalSegmentPointer

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for WalSegmentPointer