Examples of org.apache.marmotta.kiwi.model.rdf.KiWiResource

Package org.apache.marmotta.kiwi.model.rdf

Examples of org.apache.marmotta.kiwi.model.rdf.KiWiResource

org.apache.marmotta.kiwi.model.rdf.KiWiResource
KiWiResources correspond to RDF resources. A KiWi resource is either an anonymous resource or a URIResource. A KiWiResource represents an RDF resource. However, there is no 1:1 correspondance, as there may be several KiWiResources in different KnowledgeSpaces that represent the same RDF resource.
Each KiWiResource has a 1:1 correspondance to a content item. Each KiWiResource is also directly related with a Sesame 2 resource in the knowledge base backend. The kiwi.sesame package contains appropriate adaptors for transforming Sesame 2 resources into KiWiResources.
Each KiWiResoure furthermore participates in exactly one knowledge space, where the RDF resource may have different identifiers for the users. This knowledge space defines the getTripleStore().of the node. For this reason, a Sesame 2 Value may correspond to several KiWiNodes in different knowledge spaces.
TODO: we could further simplify the data model by treating TextContent and MediaContent as literals that are in a certain relation with the resource ("kiwi:hasTextContent", "kiwi:hasMediaContent") and introducing the following new literal types: KiWiTextContentLiteral KiWiMediaContentLiteral KiWiStringContentLiteral The class hierarchy should be changed so that from KiWiNode -> KiWiLiteral and from KiWiNode -> KiWiResource there is joined subclass, and from there on single table currently existing functionality should be moved to ContentItemService @author Sebastian Schaffert

        }
    }


    @Override
    protected CloseableIteration<? extends Statement, SailException> getStatementsInternal(Resource subj, URI pred, Value obj, final boolean includeInferred, Resource... contexts) throws SailException {
        final KiWiResource rsubj    = valueFactory.convert(subj);
        final KiWiUriResource rpred = valueFactory.convert(pred);
        final KiWiNode robj         = valueFactory.convert(obj);


        Set<KiWiResource> contextSet = new HashSet<KiWiResource>();
        contextSet.addAll(Lists.transform(Arrays.asList(contexts), new Function<Resource, KiWiResource>() {

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     */
    public Version getLatestVersion(Resource r, Date date) throws SailException {
        try {
            final KiWiVersioningConnection connection = persistence.getConnection();


            KiWiResource kr = (KiWiResource) ((r instanceof URI) ? getValueFactory().createURI(r.stringValue()) : getValueFactory().createBNode(r.stringValue()));


            try {
                return connection.getLatestVersion(kr,date);
            } finally {
                connection.commit();

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    @Override
    public RepositoryResult<Version> listVersions(Resource r)  throws SailException {
        try {
            final KiWiVersioningConnection connection = persistence.getConnection();


            KiWiResource kr = (KiWiResource) ((r instanceof URI) ? getValueFactory().createURI(r.stringValue()) : getValueFactory().createBNode(r.stringValue()));


            return new RepositoryResult<Version>(connection.listVersions(kr)) {
                @Override
                protected void handleClose() throws RepositoryException {
                    super.handleClose();

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    @Override
    public RepositoryResult<Version> listVersions(Resource r, Date from, Date to) throws SailException {
        try {
            final KiWiVersioningConnection connection = persistence.getConnection();


            KiWiResource kr = (KiWiResource) ((r instanceof URI) ? getValueFactory().createURI(r.stringValue()) : getValueFactory().createBNode(r.stringValue()));


            return new RepositoryResult<Version>(connection.listVersions(kr,from,to)) {
                @Override
                protected void handleClose() throws RepositoryException {
                    super.handleClose();

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Related Classes of org.apache.marmotta.kiwi.model.rdf.KiWiResource

org.apache.marmotta.kiwi.sail.KiWiSailConnection

org.apache.marmotta.kiwi.versioning.sail.KiWiSnapshotConnection

org.apache.marmotta.kiwi.versioning.sail.KiWiVersioningSail

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