com.datastax.driver.mapping

Class MappingManager

java.lang.Object

com.datastax.driver.mapping.MappingManager

public class MappingManager
extends Object

Mapping manager from which to obtain entity mappers.

Constructor Summary

Constructors

Constructor and Description
MappingManager(com.datastax.driver.core.Session session) Creates a new MappingManager using the provided Session.

Method Summary

Methods

Modifier and Type	Method and Description
<T> T	createAccessor(Class<T> klass) Creates an accessor object based on the provided interface (that must be annotated by a Accessor annotation).
com.datastax.driver.core.Session	getSession() The underlying Session used by this manager.
<T> Mapper<T>	mapper(Class<T> klass) Creates a Mapper for the provided class (that must be annotated by a Table annotation).
<T> UDTMapper<T>	udtMapper(Class<T> klass) Creates a UDTMapper for the provided class (that must be annotated by a UDT annotation).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MappingManager

public MappingManager(com.datastax.driver.core.Session session)

Creates a new MappingManager using the provided Session.

Parameters:

session - the Session to use.

Method Detail

getSession

public com.datastax.driver.core.Session getSession()

The underlying Session used by this manager.

Note that you can get obtain the Cluster object corresponding to that session using getSession().getCluster().

It is inadvisable to close the returned Session while this manager and its mappers are in use.

Returns:

the underlying session used by this manager.

mapper

public <T> Mapper<T> mapper(Class<T> klass)

Creates a Mapper for the provided class (that must be annotated by a Table annotation).

The MappingManager only ever keeps one Mapper for each class, and so calling this method multiple times on the same class will always return the same object.

Type Parameters:

T - the type of the class to map.

Parameters:

klass - the (annotated) class for which to return the mapper.

Returns:

the Mapper object for class klass.

udtMapper

public <T> UDTMapper<T> udtMapper(Class<T> klass)

Creates a UDTMapper for the provided class (that must be annotated by a UDT annotation).

The MappingManager only ever keeps one UDTMapper for each class, and so calling this method multiple times on the same class will always return the same object.

Type Parameters:

T - the type of the class to map.

Parameters:

klass - the (annotated) class for which to return the mapper.

Returns:

the UDTMapper object for class klass.

createAccessor

public <T> T createAccessor(Class<T> klass)

Creates an accessor object based on the provided interface (that must be annotated by a Accessor annotation).

The MappingManager only ever keep one Accessor for each class, and so calling this method multiple time on the same class will always return the same object.

Type Parameters:

T - the type of the accessor class.

Parameters:

klass - the (annotated) class for which to create an accessor object.

Returns:

the accessor object for class klass.