From a929b3e0e65755c0b2548bf005521828defe7fdc Mon Sep 17 00:00:00 2001
From: slhafzjw <slhafzjw@slhaf.work>
Date: Wed, 27 May 2026 23:27:51 +0800
Subject: [PATCH] feat(impression): add vector index skeleton

---
 .../core/cognition/impression/ImpressionCore.java   |  2 ++
 .../cognition/impression/ImpressionVectorIndex.java | 13 +++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 Partner-Core/src/main/java/work/slhaf/partner/core/cognition/impression/ImpressionVectorIndex.java

diff --git a/Partner-Core/src/main/java/work/slhaf/partner/core/cognition/impression/ImpressionCore.java b/Partner-Core/src/main/java/work/slhaf/partner/core/cognition/impression/ImpressionCore.java
index 9d32f995..6e9c3477 100644
--- a/Partner-Core/src/main/java/work/slhaf/partner/core/cognition/impression/ImpressionCore.java
+++ b/Partner-Core/src/main/java/work/slhaf/partner/core/cognition/impression/ImpressionCore.java
@@ -22,6 +22,7 @@ public class ImpressionCore implements StateSerializable {
      * Keyed by entity uuid. Subject can be revised or merged later, so it should not be used as the stable key.
      */
     private final ConcurrentHashMap<String, Entity> knownEntitiesByUuid = new ConcurrentHashMap<>();
+    private final ImpressionVectorIndex vectorIndex = new ImpressionVectorIndex();
 
     @CapabilityMethod
     public void updateRelation() {
@@ -66,6 +67,7 @@ public class ImpressionCore implements StateSerializable {
 
             Entity entity = new Entity(uuid, subject);
             entity.load();
+            vectorIndex.sync(entity);
             knownEntitiesByUuid.put(uuid, entity);
         }
     }
diff --git a/Partner-Core/src/main/java/work/slhaf/partner/core/cognition/impression/ImpressionVectorIndex.java b/Partner-Core/src/main/java/work/slhaf/partner/core/cognition/impression/ImpressionVectorIndex.java
new file mode 100644
index 00000000..ac638b4b
--- /dev/null
+++ b/Partner-Core/src/main/java/work/slhaf/partner/core/cognition/impression/ImpressionVectorIndex.java
@@ -0,0 +1,13 @@
+package work.slhaf.partner.core.cognition.impression;
+
+public class ImpressionVectorIndex {
+
+    public void sync(Entity entity){
+        // TODO sync entity impressions/features with vector index.
+    }
+
+    public void upsert(String content, Entity.IndexableData indexableData){
+        // TODO update vector for content when embedding/vector client boundary is finalized.
+    }
+
+}