org.axonframework.quickstart

Class RunUpcaster.ToDoItemUpcaster

java.lang.Object

org.axonframework.upcasting.AbstractSingleEntryUpcaster<org.dom4j.Document>

org.axonframework.quickstart.RunUpcaster.ToDoItemUpcaster

All Implemented Interfaces:

Upcaster<org.dom4j.Document>

Enclosing class:

RunUpcaster

public static class RunUpcaster.ToDoItemUpcaster
extends AbstractSingleEntryUpcaster<org.dom4j.Document>

This is our upcaster. It converts the XML representation of a ToItemCreatedEvent to a NewToDoItemWithDeadlineCreatedEvent. The latter contains an explicit deadline of the task at hand.

Constructor Summary

Constructors

Constructor and Description
RunUpcaster.ToDoItemUpcaster()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canUpcast(SerializedType serializedType) Indicates whether this upcaster is capable of upcasting the given type.
org.dom4j.Document	doUpcast(SerializedObject<org.dom4j.Document> intermediateRepresentation, UpcastingContext context) Upcasts the given intermediateRepresentation into zero or more other representations.
SerializedType	doUpcast(SerializedType serializedType) Upcast the given serializedType into its new format.
Class<org.dom4j.Document>	expectedRepresentationType() Returns the type of intermediate representation this upcaster expects.

Methods inherited from class org.axonframework.upcasting.AbstractSingleEntryUpcaster

upcast, upcast

Methods inherited from class java.lang.Object

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

Constructor Detail

RunUpcaster.ToDoItemUpcaster

public RunUpcaster.ToDoItemUpcaster()

Method Detail

canUpcast

public boolean canUpcast(SerializedType serializedType)

Description copied from interface: Upcaster

Indicates whether this upcaster is capable of upcasting the given type. Unless this method returns true, the Upcaster.upcast(org.axonframework.serializer.SerializedType) and Upcaster.upcast(org.axonframework.serializer.SerializedType) methods should not be invoked on this Upcaster instance.

Parameters:

serializedType - The type under investigation

Returns:

true if this upcaster can upcast the given serialized type, false otherwise.

expectedRepresentationType

public Class<org.dom4j.Document> expectedRepresentationType()

Description copied from interface: Upcaster

Returns the type of intermediate representation this upcaster expects. The serializer must ensure the intermediate representation is offered in a compatible format.

Returns:

the type of intermediate representation expected

doUpcast

public org.dom4j.Document doUpcast(SerializedObject<org.dom4j.Document> intermediateRepresentation,
                          UpcastingContext context)

Description copied from class: AbstractSingleEntryUpcaster

Upcasts the given intermediateRepresentation into zero or more other representations. The returned list of Serialized Objects must match the given list of serialized types.

This method may return null to indicate a deprecated object.

Specified by:

doUpcast in class AbstractSingleEntryUpcaster<org.dom4j.Document>

Parameters:

intermediateRepresentation - The representation of the object to upcast

context - An instance describing the context of the object to upcast

Returns:

the new representation of the object

doUpcast

public SerializedType doUpcast(SerializedType serializedType)

Description copied from class: AbstractSingleEntryUpcaster

Upcast the given serializedType into its new format. Generally, this involves increasing the revision. Sometimes, it is also necessary to alter the type's name (in case of a renamed class, for example).

If null is returned, the Serialized object of this type is considered deprecated and will not be subject to upcasting.

Specified by:

doUpcast in class AbstractSingleEntryUpcaster<org.dom4j.Document>

Parameters:

serializedType - The serialized type to upcast

Returns:

the upcast serialized type