ColumnMapper

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"))
}

Linear Supertypes

AnyRef, Any

Known Subclasses

DataFrameColumnMapper, DefaultColumnMapper, JavaBeanColumnMapper, ReflectionColumnMapper, TupleColumnMapper

Abstract Value Members

abstract def columnMapForReading(struct: StructDef, selectedColumns: IndexedSeq[ColumnRef]): ColumnMapForReading

Provides a mapping between given table or UDT and properties of type T, useful for creating objects of type T.
Provides a mapping between given table or UDT and properties of type T, useful for creating objects of type T. Throws IllegalArgumentException if selectedColumns does not provide some columns needed to instantiate object of type T
abstract def columnMapForWriting(struct: StructDef, selectedColumns: IndexedSeq[ColumnRef]): ColumnMapForWriting

Provides a mapping between given table or UDT and properties of type T, useful for reading property values of type T and writing them to Cassandra.
Provides a mapping between given table or UDT and properties of type T, useful for reading property values of type T and writing them to Cassandra. Throws IllegalArgumentException if selectedColumns contains some columns that don't have matching getters.
abstract def newTable(keyspaceName: String, tableName: String, protocolVersion: ProtocolVersion = ProtocolVersion.NEWEST_SUPPORTED): TableDef

Provides a definition of the table that class T could be saved to.

Concrete Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Docs: object ColumnMapper | package mapper

trait ColumnMapper[T] extends AnyRef

Abstract Value Members

abstract def columnMapForReading(struct: StructDef, selectedColumns: IndexedSeq[ColumnRef]): ColumnMapForReading

abstract def columnMapForWriting(struct: StructDef, selectedColumns: IndexedSeq[ColumnRef]): ColumnMapForWriting

abstract def newTable(keyspaceName: String, tableName: String, protocolVersion: ProtocolVersion = ProtocolVersion.NEWEST_SUPPORTED): TableDef

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from AnyRef

Inherited from Any

Ungrouped