Examples of org.apache.sis.xml.XLink

org.apache.sis.xml.XLink

as.opengis.net/xlink/1.0.0/xlinks.xsd">xlink schema. The allowed combinations of any one attribute depend on the value of the special {@link #getType() type} attribute. Following is a summary of the element types(columns) on which the global attributes (rows) are allowed, with an indication of whether a value is required (R) or optional (O) (Source: W3C):

	{@link XLink.Type#SIMPLE simple}	{@link XLink.Type#EXTENDED extended}	{@link XLink.Type#LOCATOR locator}	{@link XLink.Type#ARC arc}	{@link XLink.Type#RESOURCE resource}	{@link XLink.Type#TITLE title}
{@link #getType() type}	R	R	R	R	R	R
{@link #getHRef() href}	O		R
{@link #getRole() role}	O	O	O		O
{@link #getArcRole() arcrole}	O			O
{@link #getTitle() title}	O	O	O	O	O
{@link #getShow() show}	O			O
{@link #getActuate() actuate}	O			O
{@link #getLabel() label}			O		O
{@link #getFrom() from}				O
{@link #getTo() to}				O

When {@code xlink} attributes are found at unmarshalling time instead of an object definition,those attributes are given to the {@link ReferenceResolver#resolve(MarshalContext,Class,XLink)}method. Users can override that method in order to fetch an instance in some catalog for the given {@code xlink} values. @author Guilhem Legal (Geomatys) @author Martin Desruisseaux (Geomatys) @since 0.3 (derived from geotk-3.00) @version 0.3 @module @see XML Linking Language @see OGC schema

                reference = reason.toString();
            }
        }
        if (metadata instanceof IdentifiedObject) {
            final IdentifierMap map = ((IdentifiedObject) metadata).getIdentifierMap();
            XLink  link = map.getSpecialized(IdentifierSpace.XLINK);
            UUID   uuid = map.getSpecialized(IdentifierSpace.UUID);
            String anyUUID = (uuid != null) ? uuid.toString() : map.get(IdentifierSpace.UUID);
            if (anyUUID != null || link != null) {
                final Context           context  = Context.current();
                final ReferenceResolver resolver = Context.resolver(context);

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    private XLink xlink(final boolean create) {
        final ObjectReference ref = reference(create);
        if (ref == null) {
            return null;
        }
        XLink xlink = ref.xlink;
        if (create && xlink == null) {
            ref.xlink = xlink = new XLink();
            xlink.setType(XLink.Type.SIMPLE); // The "simple" type is fixed in the "gco" schema.
        }
        return xlink;
    }

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     * @return the current value, or {@code null} if none.
     * @category xlink
     */
    @XmlAttribute(name = "href", namespace = Namespaces.XLINK)
    public final String getHRef() {
        final XLink link = xlink(false);
        return (link != null) ? toString(link.getHRef()) : null;
    }

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     * @return the current value, or {@code null} if none.
     * @category xlink
     */
    @XmlAttribute(name = "role", namespace = Namespaces.XLINK)
    public final String getRole() {
        final XLink link = xlink(false);
        return (link != null) ? toString(link.getRole()) : null;
    }

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     * @return the current value, or {@code null} if none.
     * @category xlink
     */
    @XmlAttribute(name = "arcrole", namespace = Namespaces.XLINK)
    public final String getArcRole() {
        final XLink link = xlink(false);
        return (link != null) ? toString(link.getArcRole()) : null;
    }

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     * @return the current value, or {@code null} if none.
     * @category xlink
     */
    @XmlAttribute(name = "title", namespace = Namespaces.XLINK)
    public final String getTitle() {
        final XLink link = xlink(false);
        return (link != null) ? StringAdapter.toString(link.getTitle()) : null;
    }

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     * @return the current value, or {@code null} if none.
     * @category xlink
     */
    @XmlAttribute(name = "show", namespace = Namespaces.XLINK)
    public final XLink.Show getShow() {
        final XLink link = xlink(false);
        return (link != null) ? link.getShow() : null;
    }

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     * @return the current value, or {@code null} if none.
     * @category xlink
     */
    @XmlAttribute(name = "actuate", namespace = Namespaces.XLINK)
    public final XLink.Actuate getActuate() {
        final XLink link = xlink(false);
        return (link != null) ? link.getActuate() : null;
    }

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         */
        if (!(value instanceof Anchor)) {
            final String key = CharSequences.trimWhitespaces(value.toString());
            if (key != null && !key.isEmpty()) {
                final Context context = Context.current();
                final XLink linkage = Context.resolver(context).anchor(context, value, key);
                if (linkage != null) {
                    if (linkage instanceof Anchor) {
                        value = (Anchor) linkage;
                    } else {
                        value = new Anchor(linkage, key);

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        if (string == null || string.isEmpty()) {
            return null;
        }
        CharSequence value = string;
        final Context context = Context.current();
        final XLink linkage = Context.resolver(context).anchor(context, object, string);
        if (linkage != null) {
            if (linkage instanceof Anchor) {
                value = (Anchor) linkage;
            } else {
                value = new Anchor(linkage, string);

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Related Classes of org.apache.sis.xml.XLink

org.apache.sis.internal.jaxb.gco.CharSequenceAdapter

org.apache.sis.internal.jaxb.gco.PropertyType

org.apache.sis.internal.jaxb.gco.PropertyTypeTest

org.apache.sis.internal.jaxb.IdentifierMapWithSpecialCases

org.apache.sis.internal.jaxb.IdentifierMapWithSpecialCasesTest

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