mapper

Type Members

1. trait ColumnMapForReading extends Serializable

   

   A column map for reading objects from Cassandra.

   A column map for reading objects from Cassandra. Describes object's constructor and setters.

2. trait ColumnMapForWriting extends Serializable

   

   A column map for saving objects to Cassandra.

   A column map for saving objects to Cassandra. Lists available getters.

3. trait ColumnMapper[T] extends AnyRef

   

   Produces ColumnMapForReading or ColumnMapForWriting objects that map class T properties to columns in a given Cassandra table.

   Produces ColumnMapForReading or ColumnMapForWriting objects that map class T properties to columns in a given Cassandra table.

   You can associate a custom ColumnMapper object with any of your classes by providing an implicit ColumnMapper in the companion object of the mapped class:

   CREATE TABLE kv(key int primary key, value text);

   case class KeyValue(k: Int, v: String)
   
   object KeyValue {
     implicit val columnMapper =
       new DefaultColumnMapper[KeyValue](Map("k" -> "key", "v" -> "value"))
   }

4. class DataFrameColumnMapper[T] extends ColumnMapper[T]

   

5. class DefaultColumnMapper[T] extends ColumnMapper[T]

   

   A ColumnMapper that assumes camel case naming convention for property accessors and constructor names and underscore naming convention for column names.

   A ColumnMapper that assumes camel case naming convention for property accessors and constructor names and underscore naming convention for column names.

   Example mapping:

   case class User(
     login: String,         // mapped to "login" column
     emailAddress: String   // mapped to "email_address" column
     emailAddress2: String  // mapped to "email_address_2" column
   )

   Additionally, it is possible to name columns exactly the same as property names (case-sensitive):

   case class TaxPayer(
     TIN: String            // mapped to "TIN" column
   )

6. class JavaBeanColumnMapper[T] extends ReflectionColumnMapper[T]

   

7. trait LowPriorityColumnMapper extends AnyRef

   

   Provides implicit ColumnMapper used for mapping all non-tuple classes.

8. abstract class ReflectionColumnMapper[T] extends ColumnMapper[T]

   

9. case class SimpleColumnMapForReading(constructor: Seq[ColumnRef], setters: Map[String, ColumnRef], allowsNull: Boolean = false) extends ColumnMapForReading with Product with Serializable

   

10. case class SimpleColumnMapForWriting(getters: Map[String, ColumnRef]) extends ColumnMapForWriting with Product with Serializable

    

11. class TupleColumnMapper[T] extends ColumnMapper[T]