#1818 - Cannot auto-generate UUID

src/main/java/io/ebeaninternal/server/deploy/generatedproperty/GeneratedPropertyFactory.java

@@ -27,6 +27,8 @@ public class GeneratedPropertyFactory {
 
   private final HashSet<String> numberTypes = new HashSet<>();
 
+  private final UuidGeneratedProperty generatedUuid = new UuidGeneratedProperty();
+
   private final GeneratedWhoModified generatedWhoModified;
 
   private final GeneratedWhoCreated generatedWhoCreated;
@@ -123,6 +125,10 @@ public class GeneratedPropertyFactory {
     return idGeneratorMap.get(generatorName);
   }
 
+  public void setUuid(DeployBeanProperty prop) {
+    prop.setGeneratedProperty(generatedUuid);
+  }
+
   /**
    * Wraps the custom IdGenerator to implement PlatformIdGenerator.
    */

src/main/java/io/ebeaninternal/server/deploy/generatedproperty/UuidGeneratedProperty.java

@@ -0,0 +1,40 @@
+package io.ebeaninternal.server.deploy.generatedproperty;
+
+import io.ebean.bean.EntityBean;
+import io.ebeaninternal.server.deploy.BeanProperty;
+
+import java.util.UUID;
+
+public class UuidGeneratedProperty implements GeneratedProperty {
+
+  @Override
+  public Object getInsertValue(BeanProperty prop, EntityBean bean, long now) {
+    return UUID.randomUUID();
+  }
+
+  @Override
+  public Object getUpdateValue(BeanProperty prop, EntityBean bean, long now) {
+    return null;
+  }
+
+  @Override
+  public boolean includeInInsert() {
+    return true;
+  }
+
+  @Override
+  public boolean isDDLNotNullable() {
+    return true;
+  }
+
+  @Override
+  public boolean includeInUpdate() {
+    return false;
+  }
+
+  @Override
+  public boolean includeInAllUpdates() {
+    return false;
+  }
+
+}

src/main/java/io/ebeaninternal/server/deploy/parse/AnnotationFields.java

@@ -202,12 +202,11 @@ public class AnnotationFields extends AnnotationParser {
       prop.setDbColumn(dbColumn);
     }
 
+    Id id = get(prop, Id.class);
     GeneratedValue gen = get(prop, GeneratedValue.class);
     if (gen != null) {
-      readGenValue(gen, prop);
+      readGenValue(gen, id, prop);
     }
-
-    Id id = get(prop, Id.class);
     if (id != null) {
       readIdScalar(prop);
     }
@@ -519,8 +518,13 @@ public class AnnotationFields extends AnnotationParser {
     return util.createDataEncryptSupport(table, column);
   }
 
-  private void readGenValue(GeneratedValue gen, DeployBeanProperty prop) {
-
+  private void readGenValue(GeneratedValue gen, Id id, DeployBeanProperty prop) {
+    if (id == null) {
+      if (UUID.class.equals(prop.getPropertyType())) {
+        generatedPropFactory.setUuid(prop);
+        return;
+      }
+    }
     descriptor.setIdGeneratedValue();
     String genName = gen.generator();