Package ca.uhn.fhir.model.api.annotation

Annotation Type Child

@Retention(RUNTIME)
@Target(FIELD)
public @interface Child

Field annotation for fields within resource and datatype definitions, indicating a child of that type.

Field Summary

Fields

Modifier and Type	Fields	Description
static int	MAX_UNLIMITED	Constant value to supply for max() to indicate '*' (no maximum)
static int	ORDER_UNKNOWN	Constant value to supply for order() when the order is defined elsewhere
static int	REPLACE_PARENT	Constant value to supply for order() to indicate that this child should replace the entry in the superclass with the same name (and take its order value in the process).

Required Element Summary

Required Elements

Modifier and Type	Required Element	Description
String	name	The name of this field, as it will appear in serialized versions of the message

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element	Description
int	max	The maximum number of repetitions allowed for this child.
int	min	The minimum number of repetitions allowed for this child
boolean	modifier	Is this element a modifier?
int	order	The order in which this field comes within its parent.
boolean	summary	Should this element be included in the summary view
Class<? extends IElement>[]	type	Lists the allowable types for this field, if the field supports multiple types (otherwise does not need to be populated).

Field Detail

ORDER_UNKNOWN

static final int ORDER_UNKNOWN

Constant value to supply for order() when the order is defined elsewhere

MAX_UNLIMITED

static final int MAX_UNLIMITED

Constant value to supply for max() to indicate '*' (no maximum)

REPLACE_PARENT

static final int REPLACE_PARENT

Constant value to supply for order() to indicate that this child should replace the entry in the superclass with the same name (and take its order value in the process). This is useful if you wish to redefine an existing field in a resource/type definition in order to constrain/extend it.

Element Detail

name

String name

The name of this field, as it will appear in serialized versions of the message

order

int order

The order in which this field comes within its parent. The first field should have a value of 0, the second a value of 1, etc.

Default:

-1

min

int min

The minimum number of repetitions allowed for this child

Default:

0

max

int max

The maximum number of repetitions allowed for this child. Should be set to MAX_UNLIMITED if there is no limit to the number of repetitions.

Default:

1

type

Class<? extends IElement>[] type

Lists the allowable types for this field, if the field supports multiple types (otherwise does not need to be populated).

For example, if this field supports either DateTimeDt or BooleanDt types, those two classes should be supplied here.

Default:

{}

modifier

boolean modifier

Is this element a modifier?

Default:

false

summary

boolean summary

Should this element be included in the summary view

Default:

false