remove memcached support and legacy config compatibility

Author: remdui

README.md

@@ -41,11 +41,10 @@ bus.ifPresent(redisBus -> {
 - [Usage guide](docs/USAGE_GUIDE.md)
 - [Best practices](docs/BEST_PRACTICES.md)
 - [Architecture and maintainability review](docs/ARCHITECTURE_REVIEW.md)
-- [ProxyFeatures integration notes](docs/PROXYFEATURES_INTEGRATION.md)
 - [Examples](docs/examples)
 
 ## Notes
 
 - Caller identity is resolved at runtime from the platform plugin context.
 - `registerDatabase(...)` is reference-counted internally; repeated registrations reuse the same connection.
-- 
+- Use explicit, current config section names only (for example: `default`, `example`).

docs/ARCHITECTURE_REVIEW.md

@@ -18,7 +18,6 @@ Reviewed on: 2026-03-24
 ## Key Findings (Before Improvements)
 
 - Test coverage was effectively absent (`src/test/java/Test.java` placeholder only).
-- Bundled database templates used `default_credentials`, while docs/examples/integration commonly used `default`.
 - API default helper methods had null/readiness edge-cases that could produce unclear failures.
 - Missing docs files referenced by README reduced maintainability and onboarding quality.
 
@@ -33,15 +32,14 @@ Reviewed on: 2026-03-24
   - `requireDataAccess(...)` now reports null provider data access explicitly.
   - `getDataSourceOptional()` now tolerates unsupported and not-ready provider states.
 - Improved config usability:
-  - Added compatibility alias resolution between `default` and `default_credentials`.
   - Added clearer missing-section warnings with available section names.
-  - Updated bundled config templates to include `default` as the primary identifier.
-  - Added `player_data_rw` MySQL template for common ORM write usage.
+- Removed legacy compatibility paths:
+  - Removed old identifier alias behavior from config resolution.
+  - Removed Memcached implementation and dependency.
 - Hardened registry lookups:
   - Stale/disconnected providers are now evicted during lookup, not just during registration.
 
 ## Residual Risks / Next Steps
 
 - Most tests are unit-level; no automated integration tests currently validate real MySQL/Mongo/Redis instances.
-- Memcached implementations exist but are not reachable through `DatabaseType`; either expose or remove to reduce dead surface area.
 - Consider adding CI quality gates (`checkstyle`, test coverage thresholds, and smoke integration matrix).

docs/USAGE_GUIDE.md

@@ -21,7 +21,7 @@ Caller identity is resolved automatically from the plugin runtime context.
 Basic:
 
 ```java
-DatabaseProvider provider = api.registerDatabase(DatabaseType.MYSQL, "player_data_rw");
+DatabaseProvider provider = api.registerDatabase(DatabaseType.MYSQL, "example");
 if (provider == null || !provider.isConnected()) {
     // handle unavailable database
 }
@@ -30,15 +30,15 @@ if (provider == null || !provider.isConnected()) {
 Optional style:
 
 ```java
-Optional<DatabaseProvider> provider = api.registerDatabaseOptional(DatabaseType.MYSQL, "player_data_rw");
+Optional<DatabaseProvider> provider = api.registerDatabaseOptional(DatabaseType.MYSQL, "example");
 ```
 
 Typed provider style:
 
 ```java
 Optional<RelationalDatabaseProvider> relational = api.registerDatabaseAs(
         DatabaseType.MYSQL,
-        "player_data_rw",
+        "example",
         RelationalDatabaseProvider.class
 );
 ```
@@ -56,6 +56,7 @@ Optional<MessagingDataAccess> redisBus = api.registerDataAccess(
 Identifier guidance:
 
 - Prefer `default` for single-connection setups.
+- Use explicit names like `example` for relational read/write paths.
 
 ## 3. Use the provider safely
 
@@ -71,7 +72,7 @@ Optional<DataSource> dataSource = provider.getDataSourceOptional();
 Release a specific connection:
 
 ```java
-api.unregisterDatabase(DatabaseType.MYSQL, "player_data_rw");
+api.unregisterDatabase(DatabaseType.MYSQL, "example");
 ```
 
 Release all connections for your plugin context:

docs/examples/RelationalOrmExample.java

@@ -16,12 +16,12 @@ public final class RelationalOrmExample {
     public void onEnable(DataProviderAPI api, ILoggerAdapter logger) {
         Optional<RelationalDatabaseProvider> relational = api.registerDatabaseAs(
                 DatabaseType.MYSQL,
-                "player_data_rw",
+                "example",
                 RelationalDatabaseProvider.class
         );
 
         if (relational.isEmpty()) {
-            logger.error("Could not initialize MySQL connection 'player_data_rw'.");
+            logger.error("Could not initialize MySQL connection 'example'.");
             return;
         }
 
@@ -40,7 +40,7 @@ public void onDisable(DataProviderAPI api) {
             ormContext.shutdown();
             ormContext = null;
         }
-        api.unregisterDatabase(DatabaseType.MYSQL, "player_data_rw");
+        api.unregisterDatabase(DatabaseType.MYSQL, "example");
     }
 
     private static final class PlayerEntity {

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>nl.hauntedmc.dataprovider</groupId>
     <artifactId>dataprovider</artifactId>
-    <version>1.20.3</version>
+    <version>1.20.4</version>
     <packaging>jar</packaging>
     <name>DataProvider</name>
     <url>http://maven.apache.org</url>
@@ -110,11 +110,6 @@
             <artifactId>jedis</artifactId>
             <version>5.1.3</version>
         </dependency>
-        <dependency>
-            <groupId>net.spy</groupId>
-            <artifactId>spymemcached</artifactId>
-            <version>2.12.3</version>
-        </dependency>
         <dependency>
             <groupId>com.velocitypowered</groupId>
             <artifactId>velocity-api</artifactId>

src/main/java/nl/hauntedmc/dataprovider/database/keyvalue/KeyValueDatabaseProvider.java

@@ -6,7 +6,7 @@
 
 /**
  * KeyValueDatabaseProvider is the parent interface for key–value
- * databases like Redis, Memcached, etc.
+ * databases like Redis.
  */
 public interface KeyValueDatabaseProvider extends DatabaseProvider {