Value Members

1.  object definition

   Schema definition DSL.

   Schema definition DSL.
   
   Define Datomic database schema in a Schema Definition file.
   
   For small projects, the schema can be defined without partition definitions where all namespaces reside in a default tacit partition:

   package path.to.your.project
   import molecule.schema.definition._       // import schema definition DSL
   
   @InOut(1, 8)                              // Set input/output arity
   object SeattleDefinition {                // Schema definition object
   
     trait Person {                          // Namespace
       val name = oneString.fulltext   // String attribute definition with fulltext search
       val age  = oneInt                     // Int attribute definition
     }
   
     // Additional namespaces...
   }

   For larger projects, it is recommended to group namespaces in partitions:

   package path.to.your.project
   import molecule.schema.definition._
   
   @InOut(3, 15)
   object SeattleDefinition {
   
     object customer {
       trait Person {
         val name    = oneString.fulltext
         val age     = oneInt
         val address = one[Address]
         val bought  = many[products.Item]
       }
       trait Address {
         val street = oneString.fulltext
         val city   = oneInt
       }
       // ..more namespaces in the `customer` partition
     }
   
     object products {
       trait Item {
         val title   = oneString
         val inStock = oneInt
       }
       // ..more namespaces in the `products` partition
     }
   
     // Additional partitions...
   }

   See also

   Manual | Tests: Schema without partitions, Schema with partitions, Bidirectionals