Let enum arrays be saved as integers or strings (#1467)

* Let enums be saved as integers or strings as needed

* Add tests for int and varchar @DbArray enums

src/main/java/io/ebeaninternal/server/type/ArrayElementConverter.java

@@ -112,14 +112,14 @@ interface ArrayElementConverter<T> {
 
     @Override
     public Object toElement(Object rawValue) {
-      return scalarType.parse(rawValue.toString());
+      return scalarType.toBeanType(rawValue);
     }
 
     @Override
     public Object[] toDbArray(Object[] objects) {
       Object[] dbArray = new Object[objects.length];
       for (int i = 0; i < objects.length; i++) {
-        dbArray[i] = scalarType.format(objects[i]);
+        dbArray[i] = scalarType.toJdbcType(objects[i]);
       }
       return dbArray;
     }

src/main/java/io/ebeaninternal/server/type/ScalarTypeArrayList.java

@@ -60,7 +60,19 @@ public class ScalarTypeArrayList extends ScalarTypeJsonCollection<List> implemen
 
     @Override
     public ScalarTypeArrayList typeForEnum(ScalarType<?> scalarType) {
-      return new ScalarTypeArrayList("varchar", DocPropertyType.TEXT, new ArrayElementConverter.EnumConverter(scalarType));
+      final String arrayType;
+      switch (scalarType.getJdbcType()) {
+        case Types.INTEGER:
+          arrayType = "integer";
+          break;
+        case Types.VARCHAR:
+          arrayType = "varchar";
+          break;
+        default:
+          throw new IllegalArgumentException("JdbcType [" + scalarType.getJdbcType() + "] not supported for @DbArray mapping on set.");
+      }
+
+      return new ScalarTypeArrayList(arrayType, scalarType.getDocType(), new ArrayElementConverter.EnumConverter(scalarType));
     }
   }
 

src/main/java/io/ebeaninternal/server/type/ScalarTypeArraySet.java

@@ -54,13 +54,24 @@ public class ScalarTypeArraySet<T> extends ScalarTypeJsonCollection<Set<T>> impl
       if (valueType.equals(String.class)) {
         return STRING;
       }
-      throw new IllegalArgumentException("Type [" + valueType + "] not supported for @DbArray mapping on set");
+      throw new IllegalArgumentException("Type [" + valueType + "] not supported for @DbArray mapping on list");
     }
 
     @Override
     @SuppressWarnings({ "unchecked", "rawtypes" })
     public ScalarTypeArraySet typeForEnum(ScalarType<?> scalarType) {
-      return new ScalarTypeArraySet("varchar", DocPropertyType.TEXT, new ArrayElementConverter.EnumConverter(scalarType));
+      final String arrayType;
+      switch (scalarType.getJdbcType()) {
+        case Types.INTEGER:
+          arrayType = "integer";
+          break;
+        case Types.VARCHAR:
+          arrayType = "varchar";
+          break;
+          default:
+            throw new IllegalArgumentException("JdbcType [" + scalarType.getJdbcType() + "] not supported for @DbArray mapping on set.");
+      }
+      return new ScalarTypeArraySet(arrayType, scalarType.getDocType(), new ArrayElementConverter.EnumConverter(scalarType));
     }
   }