org.eclipse.rdf4j.query.algebra.Datatype Java Examples
The following examples show how to use
org.eclipse.rdf4j.query.algebra.Datatype.
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Example #1
Source File: StrictEvaluationStrategy.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 6 votes |
public Value evaluate(Datatype node, BindingSet bindings) throws QueryEvaluationException { Value v = evaluate(node.getArg(), bindings); if (v instanceof Literal) { Literal literal = (Literal) v; if (literal.getDatatype() != null) { // literal with datatype return literal.getDatatype(); } else if (literal.getLanguage().isPresent()) { return RDF.LANGSTRING; } else { // simple literal return XMLSchema.STRING; } } throw new ValueExprEvaluationException(); }
Example #2
Source File: HalyardValueExprEvaluation.java From Halyard with Apache License 2.0 | 6 votes |
/** * Evaluate a {@link Datatype} node * @param node the node to evaluate * @param bindings the set of named value bindings * @return a {@link Literal} representing the evaluation of the argument of the {@link Datatype}. * @throws ValueExprEvaluationException * @throws QueryEvaluationException */ private Value evaluate(Datatype node, BindingSet bindings) throws ValueExprEvaluationException, QueryEvaluationException { Value v = evaluate(node.getArg(), bindings); if (v instanceof Literal) { Literal literal = (Literal) v; if (literal.getDatatype() != null) { // literal with datatype return literal.getDatatype(); } else if (literal.getLanguage() != null) { return RDF.LANGSTRING; } else { // simple literal return XMLSchema.STRING; } } throw new ValueExprEvaluationException(); }
Example #3
Source File: SpinRenderer.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 5 votes |
@Override public void meet(Datatype node) throws RDFHandlerException { Resource currentSubj = subject; flushPendingStatement(); handler.handleStatement(valueFactory.createStatement(subject, RDF.TYPE, SP.DATATYPE)); predicate = SP.ARG1_PROPERTY; node.getArg().visit(this); subject = currentSubj; predicate = null; }
Example #4
Source File: SPARQLValueExprRenderer.java From semagrow with Apache License 2.0 | 5 votes |
/** * @inheritDoc */ @Override public void meet(Datatype theOp) throws Exception { unaryMeet("datatype", theOp); }
Example #5
Source File: StrictEvaluationStrategy.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
@Override public Value evaluate(ValueExpr expr, BindingSet bindings) throws QueryEvaluationException { if (expr instanceof Var) { return evaluate((Var) expr, bindings); } else if (expr instanceof ValueConstant) { return evaluate((ValueConstant) expr, bindings); } else if (expr instanceof BNodeGenerator) { return evaluate((BNodeGenerator) expr, bindings); } else if (expr instanceof Bound) { return evaluate((Bound) expr, bindings); } else if (expr instanceof Str) { return evaluate((Str) expr, bindings); } else if (expr instanceof Label) { return evaluate((Label) expr, bindings); } else if (expr instanceof Lang) { return evaluate((Lang) expr, bindings); } else if (expr instanceof LangMatches) { return evaluate((LangMatches) expr, bindings); } else if (expr instanceof Datatype) { return evaluate((Datatype) expr, bindings); } else if (expr instanceof Namespace) { return evaluate((Namespace) expr, bindings); } else if (expr instanceof LocalName) { return evaluate((LocalName) expr, bindings); } else if (expr instanceof IsResource) { return evaluate((IsResource) expr, bindings); } else if (expr instanceof IsURI) { return evaluate((IsURI) expr, bindings); } else if (expr instanceof IsBNode) { return evaluate((IsBNode) expr, bindings); } else if (expr instanceof IsLiteral) { return evaluate((IsLiteral) expr, bindings); } else if (expr instanceof IsNumeric) { return evaluate((IsNumeric) expr, bindings); } else if (expr instanceof IRIFunction) { return evaluate((IRIFunction) expr, bindings); } else if (expr instanceof Regex) { return evaluate((Regex) expr, bindings); } else if (expr instanceof Coalesce) { return evaluate((Coalesce) expr, bindings); } else if (expr instanceof Like) { return evaluate((Like) expr, bindings); } else if (expr instanceof FunctionCall) { return evaluate((FunctionCall) expr, bindings); } else if (expr instanceof And) { return evaluate((And) expr, bindings); } else if (expr instanceof Or) { return evaluate((Or) expr, bindings); } else if (expr instanceof Not) { return evaluate((Not) expr, bindings); } else if (expr instanceof SameTerm) { return evaluate((SameTerm) expr, bindings); } else if (expr instanceof Compare) { return evaluate((Compare) expr, bindings); } else if (expr instanceof MathExpr) { return evaluate((MathExpr) expr, bindings); } else if (expr instanceof In) { return evaluate((In) expr, bindings); } else if (expr instanceof CompareAny) { return evaluate((CompareAny) expr, bindings); } else if (expr instanceof CompareAll) { return evaluate((CompareAll) expr, bindings); } else if (expr instanceof Exists) { return evaluate((Exists) expr, bindings); } else if (expr instanceof If) { return evaluate((If) expr, bindings); } else if (expr instanceof ListMemberOperator) { return evaluate((ListMemberOperator) expr, bindings); } else if (expr instanceof ValueExprTripleRef) { return evaluate((ValueExprTripleRef) expr, bindings); } else if (expr == null) { throw new IllegalArgumentException("expr must not be null"); } else { throw new QueryEvaluationException("Unsupported value expr type: " + expr.getClass()); } }
Example #6
Source File: AbstractQueryModelVisitor.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
@Override public void meet(Datatype node) throws X { meetUnaryValueOperator(node); }
Example #7
Source File: SparqlValueExprRenderer.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
/** * @inheritDoc */ @Override public void meet(Datatype theOp) throws Exception { unaryMeet("datatype", theOp); }
Example #8
Source File: SerqlValueExprRenderer.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
/** * @inheritDoc */ @Override public void meet(Datatype theOp) throws Exception { unaryMeet("datatype", theOp); }
Example #9
Source File: TupleExprBuilder.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
@Override public Datatype visit(ASTDatatype node, Object data) throws VisitorException { ValueExpr arg = (ValueExpr) node.jjtGetChild(0).jjtAccept(this, null); return new Datatype(arg); }
Example #10
Source File: QueryModelBuilder.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
@Override public Datatype visit(ASTDatatype node, Object data) throws VisitorException { return new Datatype((ValueExpr) super.visit(node, data)); }
Example #11
Source File: HalyardValueExprEvaluation.java From Halyard with Apache License 2.0 | 4 votes |
/** * Determines which evaluate method to call based on the type of {@link ValueExpr} * @param expr the expression to evaluate * @param bindings the set of named value bindings the set of named value bindings * @return the {@link Value} resulting from the evaluation * @throws ValueExprEvaluationException * @throws QueryEvaluationException */ Value evaluate(ValueExpr expr, BindingSet bindings) throws ValueExprEvaluationException, QueryEvaluationException { if (expr instanceof Var) { return evaluate((Var) expr, bindings); } else if (expr instanceof ValueConstant) { return evaluate((ValueConstant) expr, bindings); } else if (expr instanceof BNodeGenerator) { return evaluate((BNodeGenerator) expr, bindings); } else if (expr instanceof Bound) { return evaluate((Bound) expr, bindings); } else if (expr instanceof Str) { return evaluate((Str) expr, bindings); } else if (expr instanceof Label) { return evaluate((Label) expr, bindings); } else if (expr instanceof Lang) { return evaluate((Lang) expr, bindings); } else if (expr instanceof LangMatches) { return evaluate((LangMatches) expr, bindings); } else if (expr instanceof Datatype) { return evaluate((Datatype) expr, bindings); } else if (expr instanceof Namespace) { return evaluate((Namespace) expr, bindings); } else if (expr instanceof LocalName) { return evaluate((LocalName) expr, bindings); } else if (expr instanceof IsResource) { return evaluate((IsResource) expr, bindings); } else if (expr instanceof IsURI) { return evaluate((IsURI) expr, bindings); } else if (expr instanceof IsBNode) { return evaluate((IsBNode) expr, bindings); } else if (expr instanceof IsLiteral) { return evaluate((IsLiteral) expr, bindings); } else if (expr instanceof IsNumeric) { return evaluate((IsNumeric) expr, bindings); } else if (expr instanceof IRIFunction) { return evaluate((IRIFunction) expr, bindings); } else if (expr instanceof Regex) { return evaluate((Regex) expr, bindings); } else if (expr instanceof Coalesce) { return evaluate((Coalesce) expr, bindings); } else if (expr instanceof Like) { return evaluate((Like) expr, bindings); } else if (expr instanceof FunctionCall) { return evaluate((FunctionCall) expr, bindings); } else if (expr instanceof And) { return evaluate((And) expr, bindings); } else if (expr instanceof Or) { return evaluate((Or) expr, bindings); } else if (expr instanceof Not) { return evaluate((Not) expr, bindings); } else if (expr instanceof SameTerm) { return evaluate((SameTerm) expr, bindings); } else if (expr instanceof Compare) { return evaluate((Compare) expr, bindings); } else if (expr instanceof MathExpr) { return evaluate((MathExpr) expr, bindings); } else if (expr instanceof In) { return evaluate((In) expr, bindings); } else if (expr instanceof CompareAny) { return evaluate((CompareAny) expr, bindings); } else if (expr instanceof CompareAll) { return evaluate((CompareAll) expr, bindings); } else if (expr instanceof Exists) { return evaluate((Exists) expr, bindings); } else if (expr instanceof If) { return evaluate((If) expr, bindings); } else if (expr instanceof ListMemberOperator) { return evaluate((ListMemberOperator) expr, bindings); } else if (expr == null) { throw new IllegalArgumentException("expr must not be null"); } else { throw new QueryEvaluationException("Unsupported value expr type: " + expr.getClass()); } }