#2072 - Extract ebean-api module - NB: this includes moving ShutdownManager and small adjustment to DocStore/Elastic SPI

ebean-api/src/main/java/io/ebean/cache/ServerCachePlugin.java

@@ -0,0 +1,15 @@
+package io.ebean.cache;
+
+import io.ebean.BackgroundExecutor;
+import io.ebean.config.DatabaseConfig;
+
+/**
+ * The plugin interface that creates a ServerCacheFactory.
+ */
+public interface ServerCachePlugin {
+
+  /**
+   * Create the ServerCacheFactory given the server config and background executor service.
+   */
+  ServerCacheFactory create(DatabaseConfig config, BackgroundExecutor executor);
+}