org.universAAL.middleware.ui.rdf

Class ChoiceList

java.lang.Object

org.universAAL.middleware.rdf.Resource

org.universAAL.middleware.rdf.FinalizedResource

org.universAAL.middleware.ui.rdf.FormElement

org.universAAL.middleware.ui.rdf.Label

org.universAAL.middleware.ui.rdf.ChoiceList

public class ChoiceList
extends Label

A special case of labels accepting other choice items and lists as its children and hence serving as an inner node in a hierarchy of possible choices. Selecting the label of a choice list must make its children accessible.

Author:

mtazari, Carsten Stockloew

Field Summary

Fields

Modifier and Type	Field and Description
static String	MY_URI
static String	PROP_CHILDREN Property for accessing the list of items and sublists contained in a choice list.

Fields inherited from class org.universAAL.middleware.ui.rdf.Label

PROP_ICON_URL

Fields inherited from class org.universAAL.middleware.ui.rdf.FormElement

PROP_APPEARANCE

Fields inherited from class org.universAAL.middleware.rdf.Resource

ANON_URI_PREFIX, blockAddingTypes, isXMLLiteral, NAMESPACE_PREFIX, ns_delim_index, PROP_INVOLVED_HUMAN_USER, PROP_RDF_FIRST, PROP_RDF_REST, PROP_RDF_TYPE, PROP_RDFS_COMMENT, PROP_RDFS_LABEL, PROP_SERIALIZATION_FULL, PROP_SERIALIZATION_OPTIONAL, PROP_SERIALIZATION_REDUCED, PROP_SERIALIZATION_UNDEFINED, props, RDF_EMPTY_LIST, RDF_NAMESPACE, RDFS_NAMESPACE, SERVICE_NAMESPACE, TYPE_RDF_LIST, TYPE_RDFS_CLASS, uri, VOCABULARY_NAMESPACE

Constructor Summary

Constructors

Constructor and Description
ChoiceList() For use by de-serializers only.
ChoiceList(String labelText, String iconURL) Constructs a new choice list.

Method Summary

Modifier and Type	Method and Description
void	addChild(ChoiceItem item) Adds an item to this choice list.
void	addChild(ChoiceList sublist) Adds a sublist to this choice list.
Label[]	getChildren() Returns the items and sublists contained in this choice list in the order of their addition to the list.
boolean	setProperty(String propURI, Object value) Adds a statement with this resource as the subject, the given propURI as the predicate and the given value as the object.

Methods inherited from class org.universAAL.middleware.ui.rdf.Label

getIconURL, getText, toString

Methods inherited from class org.universAAL.middleware.ui.rdf.FormElement

addAppearanceRecommendation, getAppearanceRecommendations

Methods inherited from class org.universAAL.middleware.rdf.FinalizedResource

addType, getLocalName, getNamespace, getProperty, getPropertyURIs, getType, getTypes, getURI, hasQualifiedName, isAnon, numberOfProperties

Methods inherited from class org.universAAL.middleware.rdf.Resource

addMultiLangProp, asList, asList, asRDFList, changeProperty, copy, deepCopy, equals, generateAnonURI, getDefaultLang, getFilename, getMultiLangProp, getOrConstructLabel, getOrConstructLabel, getPropSerializationType, getResource, getResourceComment, getResourceLabel, getResourceLabel, getStaticFieldValue, hashCode, hasProperty, isAnon, isBlockingAddingTypes, isClosedCollection, isQualifiedName, isWellFormed, literal, representsQualifiedURI, serializesAsXMLLiteral, setPropertyPath, setPropertyPath, setPropertyPathFromOffset, setResourceComment, setResourceLabel, toStringRecursive, toStringRecursive, unliteral

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

MY_URI

public static final String MY_URI

See Also:

Constant Field Values

PROP_CHILDREN

public static final String PROP_CHILDREN

Property for accessing the list of items and sublists contained in a choice list.

See Also:

Constant Field Values

Constructor Detail

ChoiceList

public ChoiceList()

For use by de-serializers only.

ChoiceList

public ChoiceList(String labelText,
                  String iconURL)

Constructs a new choice list.

Parameters:

labelText - see Label.Label(String, String)

iconURL - see Label.Label(String, String)

Method Detail

addChild

public void addChild(ChoiceItem item)

Adds an item to this choice list.

Parameters:

item - The item to be added to this choice list.

addChild

public void addChild(ChoiceList sublist)

Adds a sublist to this choice list.

Parameters:

sublist - The sublist to be added to this choice list.

getChildren

public Label[] getChildren()

Returns the items and sublists contained in this choice list in the order of their addition to the list.

setProperty

public boolean setProperty(String propURI,
                           Object value)

Description copied from class: Resource

Adds a statement with this resource as the subject, the given propURI as the predicate and the given value as the object. Subclasses must override this in order to decide if the statement to be added fits the general class constraints. If not, the call of this method should be ignored. For each property only one single call may be made to this method, unless subsequent calls to this method for setting the value of the same property are treated as an update for an update-able property. Multi-valued properties must be set using an instance of List. The differentiation, if a such list should be treated as an rdf:List, can be made with the help of Resource.isClosedCollection(String). The default implementation here accepts all property-value pairs blindly except for rdf:type which is handled if the value is a type URI, a Resource or a java.util.List of them.

Note: The setting of the property rdf:type is being handled by this class via the final methods Resource.addType(String, boolean), Resource.getType(), and Resource.getTypes(). Although these methods give the view of handling type URIs as strings, but in reality the types are stored as direct instances of this class. So, the subclasses should ignore calls for setting rdf:type; if not, then the subclass must pay attention that the value should be a List of direct instances of this class so that (1) the Resource.toString() method returns just the URI and (2) the serializers get no problems with the value. Also, settings via subclasses may be overwritten by this class if a subsequent call to Resource.addType(String, boolean) is made.

Overrides:

setProperty in class Label

Returns:

true if the property changed as a result of the call

See Also:

Resource.setProperty(String, Object)