com.amazonaws.services.dynamodbv2.datamodeling

Class AbstractEnumMarshaller<T extends Enum<T>>

java.lang.Object

com.amazonaws.services.dynamodbv2.datamodeling.AbstractEnumMarshaller<T>

All Implemented Interfaces:

DynamoDBMarshaller<T>

public abstract class AbstractEnumMarshaller<T extends Enum<T>>
extends Object
implements DynamoDBMarshaller<T>

Generic marshaller for enumerations. Please note, there are some risks in distributed systems when using enumerations as attributes intead of simply using a String. When adding new values to the enumeration, the enum only changes must be deployed before the enumeration value can be persisted. This will ensure that all systems have the correct code to map it from the item record in DynamoDB to your objects.

See Also:

DynamoDBMarshaller

Constructor Summary

Constructors

Constructor and Description
AbstractEnumMarshaller()

Method Summary

Methods

Modifier and Type	Method and Description
String	marshall(T obj) Turns an object of type T into its String representation.
T	unmarshall(Class<T> clazz, String obj) Turns a String representation of an object of type T into an object.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractEnumMarshaller

public AbstractEnumMarshaller()

Method Detail

marshall

public String marshall(T obj)

Turns an object of type T into its String representation.

Specified by:

marshall in interface DynamoDBMarshaller<T extends Enum<T>>

unmarshall

public T unmarshall(Class<T> clazz,
           String obj)

Turns a String representation of an object of type T into an object.

Specified by:

unmarshall in interface DynamoDBMarshaller<T extends Enum<T>>