Struct MemoryEntry 

pub struct MemoryEntry {

    pub id: String,
    pub memory_type: MemoryType,
    pub tier: MemoryTier,
    pub content: String,
    pub content_hash: u64,
    pub tags: Vec<String>,
    pub source: String,
    pub session_id: Option<String>,
    pub importance: f32,
    pub pinned: bool,
    pub protection: ProtectionLevel,
    pub auto_classified: bool,
    pub session_appearances: u32,
    pub user_corrected: bool,
    pub seen_in_sessions: Vec<String>,
    pub created_at: DateTime<Utc>,
    pub accessed_at: DateTime<Utc>,
    pub modified_at: DateTime<Utc>,
    pub access_count: u32,
    pub decay_score: f32,
    pub compaction_level: u8,
    pub compacted_from: Vec<String>,
    pub related_ids: Vec<String>,
    pub contradicts: Option<String>,
}

A single memory entry with lifecycle and auto-protection metadata.

Fields

id: String

Unique ID.

memory_type: MemoryType

Memory type (auto-classified if not explicitly set).

tier: MemoryTier

Current tier (auto-managed by Dream).

content: String

Content (Markdown).

content_hash: u64

Content hash for deduplication.

tags: Vec<String>

Tags (auto-extracted from content).

source: String

Creator (agent name, “compaction”, “system”, “dream”, “auto-classify”).

session_id: Option<String>

Related session ID.

importance: f32

Base importance (0.0–1.0), set by type or auto-computed.

pinned: bool

Whether user explicitly pinned (optional override).

protection: ProtectionLevel

Auto-computed protection level. Dream recomputes each run.

auto_classified: bool

Whether the type was auto-classified (vs explicit).

session_appearances: u32

Number of distinct sessions this entry appeared in.

user_corrected: bool

Whether the user has corrected/contradicted this entry’s topic.

seen_in_sessions: Vec<String>

Session IDs that have accessed this entry (for dedup of session_appearances). Max 100 entries; oldest evicted first.

created_at: DateTime<Utc>

Creation timestamp.

accessed_at: DateTime<Utc>

Last access timestamp.

modified_at: DateTime<Utc>

Last modification timestamp.

access_count: u32

Access count.

decay_score: f32

Current decay score (0.0–1.0), computed by DecayEngine.

compaction_level: u8

Compaction level (0 = raw, 1 = daily, 2 = weekly, 3 = monthly, 4 = root).

compacted_from: Vec<String>

IDs of entries this was compacted from.

related_ids: Vec<String>

IDs of related memory entries.

contradicts: Option<String>

Contradicts a previous entry (ID of the contradicted entry).

Trait Implementations

impl Clone for MemoryEntry

fn clone(&self) -> MemoryEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryEntry

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MemoryEntry

fn deserialize<__D>( __deserializer: __D, ) -> Result<MemoryEntry, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MemoryEntry

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

where __S: Serializer,

Serialize this value into the given Serde serializer.