Use fluid setters for DatabaseConfig and DatabaseBuilder

ebean-api/src/main/java/io/ebean/Database.java

@@ -86,6 +86,23 @@ import java.util.concurrent.Callable;
 @NonNullApi
 public interface Database {
 
+  /**
+   * Return a new database builder.
+    * <pre>{@code
+ *
+ *   // build the 'default' database using configuration
+ *   // from application.properties / application.yaml
+ *
+ *   Database db = Database.builder()
+ *     .loadFromProperties()
+ *     .build();
+ *
+ * }</pre>
+   */
+  static DatabaseBuilder builder() {
+    return new DatabaseConfig();
+  }
+
   /**
    * Shutdown the Database instance.
    */

ebean-core/src/test/java/io/ebeaninternal/server/deploy/BeanDescriptor_registerTest.java

@@ -1,8 +1,6 @@
 package io.ebeaninternal.server.deploy;
 
-import io.ebean.DatabaseFactory;
-import io.ebean.DatabaseBuilder;
-import io.ebean.config.DatabaseConfig;
+import io.ebean.Database;
 import io.ebean.event.AbstractBeanPersistListener;
 import io.ebean.event.BeanPersistAdapter;
 import io.ebean.event.BeanPersistListener;
@@ -18,16 +16,16 @@ public class BeanDescriptor_registerTest {
   @Test
   public void testRegisterDeregister() {
 
-    DatabaseBuilder config = new DatabaseConfig();
+    Database db = Database.builder()
+      .setName("h2other")
+      .loadFromProperties()
+      .setDdlExtra(false)
+      .setRegister(false)
+      .setDefaultServer(false)
+      .addClass(EBasic.class)
+      .build();
 
-    config.setName("h2other");
-    config.loadFromProperties();
-    config.setDdlExtra(false);
-    config.setRegister(false);
-    config.setDefaultServer(false);
-    config.addClass(EBasic.class);
-
-    SpiEbeanServer ebeanServer = (SpiEbeanServer)DatabaseFactory.create(config);
+    SpiEbeanServer ebeanServer = (SpiEbeanServer)db;
     try {
       BeanDescriptor<EBasic> desc = ebeanServer.descriptor(EBasic.class);
       persistListenerRegistrationTests(desc);