Redis Examples

redis-example/pom.xml

@@ -12,14 +12,28 @@
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <version.langchain4j>1.3.0</version.langchain4j>
+        <version.langchain4j.community-redis>1.3.0-beta9</version.langchain4j.community-redis>
     </properties>
 
     <dependencies>
 
         <dependency>
             <groupId>dev.langchain4j</groupId>
-            <artifactId>langchain4j-redis</artifactId>
-            <version>1.0.0-alpha1</version>
+            <artifactId>langchain4j</artifactId>
+            <version>${version.langchain4j}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>dev.langchain4j</groupId>
+            <artifactId>langchain4j-google-ai-gemini</artifactId>
+            <version>${version.langchain4j}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>dev.langchain4j</groupId>
+            <artifactId>langchain4j-community-redis</artifactId>
+            <version>${version.langchain4j.community-redis}</version>
         </dependency>
 
         <dependency>

redis-example/src/main/java/RedisChatMemoryStoreExample.java

@@ -0,0 +1,60 @@
+import com.redis.testcontainers.RedisStackContainer;
+import dev.langchain4j.community.store.memory.chat.redis.RedisChatMemoryStore;
+import dev.langchain4j.data.message.ChatMessage;
+import dev.langchain4j.memory.chat.MessageWindowChatMemory;
+import dev.langchain4j.model.chat.ChatModel;
+import dev.langchain4j.model.googleai.GoogleAiGeminiChatModel;
+import dev.langchain4j.service.AiServices;
+
+import java.util.List;
+
+import static com.redis.testcontainers.RedisStackContainer.DEFAULT_IMAGE_NAME;
+import static com.redis.testcontainers.RedisStackContainer.DEFAULT_TAG;
+
+public class RedisChatMemoryStoreExample {
+
+    interface Assistant {
+
+        String chat(String message);
+    }
+
+    public static final String GEMINI_API_KEY = "YOUR_API_KEY_HERE"; // Replace with your actual Gemini API key
+
+    public static void main(String[] args) {
+        RedisStackContainer redis = new RedisStackContainer(DEFAULT_IMAGE_NAME.withTag(DEFAULT_TAG));
+        redis.start();
+
+        RedisChatMemoryStore redisChatMemoryStore = RedisChatMemoryStore.builder()
+                .host(redis.getHost())
+                .port(redis.getFirstMappedPort())
+                .build();
+
+        ChatModel model = GoogleAiGeminiChatModel.builder()
+                .apiKey(GEMINI_API_KEY)
+                .modelName("gemini-2.5-flash")
+                .temperature(0.7)
+                .build();
+
+        MessageWindowChatMemory chatMemory = MessageWindowChatMemory.builder()
+                .chatMemoryStore(redisChatMemoryStore)
+                .maxMessages(30)
+                .build();
+
+        Assistant assistant = AiServices.builder(Assistant.class)
+                .chatModel(model)
+                .chatMemory(chatMemory)
+                .build();
+
+        String answer = assistant.chat("Hello! My name is Homer Simpson.");
+        System.out.println(answer); // Hello Homer...
+
+        List<ChatMessage> messages = chatMemory.messages();
+        System.out.println(String.format("Chat memory size: %s contents: ", messages.size()));
+
+        for (ChatMessage message : messages) {
+            System.out.println(message);
+        }
+
+        redis.stop();
+    }
+}

redis-example/src/main/java/RedisEmbeddingStoreExample.java

@@ -1,12 +1,12 @@
 import com.redis.testcontainers.RedisStackContainer;
+import dev.langchain4j.community.store.embedding.redis.RedisEmbeddingStore;
 import dev.langchain4j.data.embedding.Embedding;
 import dev.langchain4j.data.segment.TextSegment;
-import dev.langchain4j.model.embedding.onnx.allminilml6v2.AllMiniLmL6V2EmbeddingModel;
 import dev.langchain4j.model.embedding.EmbeddingModel;
+import dev.langchain4j.model.embedding.onnx.allminilml6v2.AllMiniLmL6V2EmbeddingModel;
 import dev.langchain4j.store.embedding.EmbeddingMatch;
 import dev.langchain4j.store.embedding.EmbeddingSearchRequest;
 import dev.langchain4j.store.embedding.EmbeddingStore;
-import dev.langchain4j.store.embedding.redis.RedisEmbeddingStore;
 
 import java.util.List;