de.sandkastenliga.tools.projector.core

Annotation Type Projection

@Target(value=METHOD)
 @Retention(value=RUNTIME)
public @interface Projection

The annotated setter method of a projected property of the target object (projection) will be used to project data from the source object (object thet is projected) according to the rules specified in this annotation.

Author:

Guido Laures

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	propertyName The name of the property on the source object to be projected onto this setter method.
String	referencePropertyName This property is only required if you use ProjectionType.property or ProjectionType.propertyCollection.
ProjectionType	value The type of projection to be used by the Projector.

Element Detail

value

public abstract ProjectionType value

The type of projection to be used by the Projector.

Returns:

the type of projection to be used

See Also:

ProjectionType

Default:

de.sandkastenliga.tools.projector.core.ProjectionType.asIs

propertyName

public abstract String propertyName

The name of the property on the source object to be projected onto this setter method. In case the name is the same for source and target no value needs to be provided. Note: the property types need to be the same or at least wrappable into each other (e.g. Long with long will work out of the box)

Returns:

the name of the property on the source object to be projected

Default:

""

referencePropertyName

public abstract String referencePropertyName

This property is only required if you use ProjectionType.property or ProjectionType.propertyCollection. It tells the Projector the name of the property on the source object's property value to be used as value. Note: you need to make sure that the property of the target object has the same or wrappable type as the the source object's property's property. Default value for this annotation parameter is "id".

Returns:

the name of the property of the source object's property to be used as value for the annotated setter method

Default:

"id"