From 9a792ec08e5859308a09184611fe9fb3f62358cd Mon Sep 17 00:00:00 2001
From: luca <qiye1027@gmail.com>
Date: Thu, 22 Aug 2024 17:35:20 +0800
Subject: [PATCH] feat[cache]: get the data in the cache

---
 orm/src/main/java/com/zfoo/orm/cache/EntityCache.java  | 9 +++++++++
 orm/src/main/java/com/zfoo/orm/cache/IEntityCache.java | 7 +++++++
 2 files changed, 16 insertions(+)

diff --git a/orm/src/main/java/com/zfoo/orm/cache/EntityCache.java b/orm/src/main/java/com/zfoo/orm/cache/EntityCache.java
index 32092258..75b09d01 100644
--- a/orm/src/main/java/com/zfoo/orm/cache/EntityCache.java
+++ b/orm/src/main/java/com/zfoo/orm/cache/EntityCache.java
@@ -176,6 +176,15 @@ public class EntityCache<PK extends Comparable<PK>, E extends IEntity<PK>> imple
         return cachePnode;
     }
 
+    @Override
+    public E get(PK pk) {
+        PNode<PK, E> cachePnode = caches.get(pk);
+        if (cachePnode == null) {
+            return null;
+        }
+        return cachePnode.getEntity();
+    }
+
     @Override
     public void update(E entity) {
         var cachePnode = fetchCachePnode(entity, true);
diff --git a/orm/src/main/java/com/zfoo/orm/cache/IEntityCache.java b/orm/src/main/java/com/zfoo/orm/cache/IEntityCache.java
index 62d820ab..5815d388 100644
--- a/orm/src/main/java/com/zfoo/orm/cache/IEntityCache.java
+++ b/orm/src/main/java/com/zfoo/orm/cache/IEntityCache.java
@@ -38,6 +38,13 @@ public interface IEntityCache<PK extends Comparable<PK>, E extends IEntity<PK>>
      */
     E loadOrCreate(PK pk);
 
+    /**
+     * EN: Get the data in the cache or returns null if it does not exist in the cache.
+     * CN: 获取缓存中的数据，如果缓存中不存在则返回null。
+     */
+    @Nullable
+    E get(PK pk);
+
     /**
      * 更新缓存中的数据，只更新缓存的时间戳，并通过一定策略写入到数据库
      * <p>