Java Node.isURI方法代碼示例

import com.hp.hpl.jena.graph.Node; //導入方法依賴的package包/類
/**
 * Pretty-prints an RDF node and shortens URIs into QNames according to a
 * {@link PrefixMapping}.
 * @param n An RDF node
 * @return An N-Triples style textual representation with URIs shortened to QNames
 */
public static String toString(Node n, PrefixMapping prefixes) {
	if (n.isURI()) {
		return qNameOrURI(n.getURI(), prefixes);
	}
	if (n.isBlank()) {
		return "_:" + n.getBlankNodeLabel();
	}
	if (n.isVariable()) {
		return "?" + n.getName();
	}
	if (Node.ANY.equals(n)) {
		return "?ANY";
	}
	// Literal
	String s = "\"" + n.getLiteralLexicalForm() + "\"";
	if (!"".equals(n.getLiteralLanguage())) {
		s += "@" + n.getLiteralLanguage();
	}
	if (n.getLiteralDatatype() != null) {
		s += "^^" + qNameOrURI(n.getLiteralDatatypeURI(), prefixes);
	}
	return s;
}
 

import com.hp.hpl.jena.graph.Node; //導入方法依賴的package包/類
public void limitTo(Node node) {
	if (isEmpty) return;
	if (Node.ANY.equals(node) || node.isVariable()) {
		return;
	}
	if (fixedNode == null) {
		fixedNode = node;
	} else if (!fixedNode.equals(node)) {
		limitToEmptySet();
	}
	if (node.isURI()) {
		limitToURIs();
		limitValues(node.getURI());
	}
	if (node.isBlank()) {
		limitToBlankNodes();
		limitValues(node.getBlankNodeLabel());
	}
	if (node.isLiteral()) {
		limitToLiterals(node.getLiteralLanguage(), node.getLiteralDatatype());
		limitValues(node.getLiteralLexicalForm());
	}
}
 

import com.hp.hpl.jena.graph.Node; //導入方法依賴的package包/類
public void limitTo(Node node) {
	logger.debug("limitting to " + node);

	if (node.isURI())
		limitedToURIs = true;
	else if (node.isLiteral())
		limitedToLiterals = true;
	else if (Var.isBlankNodeVar(node))
		limitedToBlankNodes = true;
}
 

import com.hp.hpl.jena.graph.Node; //導入方法依賴的package包/類
public Collection<String> classMapNamesForResource(Node resource) {
	if (!resource.isURI()) {
		return Collections.<String>emptyList();
	}
	List<String> results = new ArrayList<String>();
	for (Entry<String,NodeMaker> entry: classMapNodeMakers.entrySet()) {
		String classMapName = entry.getKey();
		NodeMaker nodeMaker = entry.getValue();
		if (!nodeMaker.selectNode(resource, RelationalOperators.DUMMY).equals(NodeMaker.EMPTY)) {
			results.add(classMapName);
		}
	}
	return results;
}
 

import com.hp.hpl.jena.graph.Node; //導入方法依賴的package包/類
@Override
public SqlStatement translate() {
	Select select = new Select(this._tableName);
	select.setTabs(_tabs);
	Map<String, String> vars = new HashMap<String, String>();
	ArrayList<String> whereConditions = new ArrayList<String>();
	boolean first = true;
	Node subject = _t1.getSubject();
	Node predicate = _t1.getPredicate();
	Node object = _t1.getObject();

	if (subject.isURI() || subject.isBlank()) {
		whereConditions.add(Tags.SUBJECT_COLUMN_NAME + " = '"+ FmtUtils.stringForNode(subject,
						this._prefixMapping).replace("http://yago-knowledge.org/resource/", "") + "'");
	} else {
		vars.put(Tags.SUBJECT_COLUMN_NAME, subject.getName());
	}

	if (predicate.isURI()) {
		this._tableName = FmtUtils.stringForNode(predicate, this._prefixMapping).replace("http://yago-knowledge.org/resource/", "").replace(":", "__");
		this.verticalPartitioning = true;
	} else {
		vars.put(Tags.PREDICATE_COLUMN_NAME, predicate.getName());
	}
	if (object.isURI() || object.isLiteral() || object.isBlank()) {
		String string = FmtUtils.stringForNode(object,
				this._prefixMapping).replace("http://yago-knowledge.org/resource/", "");
		//if (object.isLiteral()) {
		//	string = "" + object.getLiteral().toString();
		//}
		
		whereConditions.add(Tags.OBJECT_COLUMN_NAME + " = '" + string + "'");
	} else {
		vars.put(Tags.OBJECT_COLUMN_NAME, object.getName());
	}

	ArrayList<String> varSet = new ArrayList<String>();
	for (String var : vars.keySet()) {
			select.addSelector(vars.get(var), new String[] { var });
			varSet.add(vars.get(var));
	}
	select.setVariables(varSet);
	
	// FROM
		select.setFrom(this._tableName);
	// WHERE
	for (String where : whereConditions) {
		select.addConjunction(where);
	}
	select.setDistinct(_isDistinct);
	return select;
}
 

import com.hp.hpl.jena.graph.Node; //導入方法依賴的package包/類
public boolean matches(Node node) { return node.isURI(); }