Module dev.metaschema.core

Package dev.metaschema.core.model

Interface IFeatureValueless

All Superinterfaces:

IDefaultable, IInstance, IInstanceAbsolute, IModelElement, IModelElementVisitable, IValued

public interface IFeatureValueless
extends IInstanceAbsolute

Represents an instance that has no value.

This interface marks instances that do not produce a value when queried, always returning null from getValue(Object).

Method Summary

Modifier and Type	Method	Description
default Object	getValue(Object parent)	Get the current value from the provided parentInstance object.

Methods inherited from interface dev.metaschema.core.model.IDefaultable

getDefaultValue, getEffectiveDefaultValue, getResolvedDefaultValue

Methods inherited from interface dev.metaschema.core.model.IInstance

getContainingDefinition, getParentContainer, toCoordinates

Methods inherited from interface dev.metaschema.core.model.IModelElement

getContainingModule, getModelType, getRemarks

Methods inherited from interface dev.metaschema.core.model.IModelElementVisitable

accept

Method Details

getValue

default Object getValue(Object parent)

Description copied from interface: IValued

Get the current value from the provided parentInstance object.

The provided object must be of the type associated with the definition containing this instance.

Specified by:

getValue in interface IValued

Parameters:

parent - the object associated with the definition containing this property

Returns:

the value if available, or null otherwise