Examples with Literal org.eclipse.rdf4j.model.Literal used on opensource projects

Example 71 with Literal

use of org.eclipse.rdf4j.model.Literal in project rdf4j by eclipse.

the class TupleExprs method getConstVarName.

public static String getConstVarName(Value value) {
    if (value == null) {
        throw new IllegalArgumentException("value can not be null");
    }
    // We use toHexString to get a more compact stringrep.
    String uniqueStringForValue = Integer.toHexString(value.stringValue().hashCode());
    if (value instanceof Literal) {
        uniqueStringForValue += "_lit";
        // we need to append datatype and/or language tag to ensure a unique
        // var name (see SES-1927)
        Literal lit = (Literal) value;
        if (lit.getDatatype() != null) {
            uniqueStringForValue += "_" + Integer.toHexString(lit.getDatatype().hashCode());
        }
        if (lit.getLanguage() != null) {
            uniqueStringForValue += "_" + Integer.toHexString(lit.getLanguage().hashCode());
        }
    } else if (value instanceof BNode) {
        uniqueStringForValue += "_node";
    } else {
        uniqueStringForValue += "_uri";
    }
    return "_const_" + uniqueStringForValue;
}

Example 72 with Literal

use of org.eclipse.rdf4j.model.Literal in project rdf4j by eclipse.

the class ModelsTest method testGetPropertyLiteral.

@Test
public void testGetPropertyLiteral() {
    Literal lit1 = VF.createLiteral(1.0);
    model1.add(foo, bar, lit1);
    model1.add(foo, bar, foo);
    Literal l = Models.getPropertyLiteral(model1, foo, bar).orElse(null);
    assertNotNull(l);
    assertEquals(lit1, l);
}

Example 73 with Literal

use of org.eclipse.rdf4j.model.Literal in project rdf4j by eclipse.

the class ModelsTest method testGetProperties.

@Test
public void testGetProperties() {
    Literal lit1 = VF.createLiteral(1.0);
    model1.add(foo, bar, lit1);
    model1.add(foo, bar, foo);
    Set<Value> values = Models.getProperties(model1, foo, bar);
    assertNotNull(values);
    assertEquals(2, values.size());
    assertTrue(values.contains(lit1));
    assertTrue(values.contains(foo));
}

Example 74 with Literal

use of org.eclipse.rdf4j.model.Literal in project rdf4j by eclipse.

the class ModelsTest method testGetPropertyIRI2.

@Test
public void testGetPropertyIRI2() {
    Literal lit1 = VF.createLiteral(1.0);
    model1.add(foo, bar, lit1);
    Optional<IRI> iri = Models.getPropertyIRI(model1, foo, bar);
    assertEquals(Optional.empty(), iri);
}

Example 75 with Literal

use of org.eclipse.rdf4j.model.Literal in project rdf4j by eclipse.

the class ModelsTest method testSetPropertyWithContext2.

@Test
public void testSetPropertyWithContext2() {
    Literal lit1 = VF.createLiteral(1.0);
    IRI graph1 = VF.createIRI("urn:g1");
    IRI graph2 = VF.createIRI("urn:g2");
    model1.add(foo, bar, lit1, graph1);
    model1.add(foo, bar, bar);
    model1.add(foo, bar, foo, graph2);
    Literal lit2 = VF.createLiteral(2.0);
    Model m = Models.setProperty(model1, foo, bar, lit2);
    assertNotNull(m);
    assertEquals(model1, m);
    assertFalse(model1.contains(foo, bar, lit1));
    assertFalse(model1.contains(foo, bar, lit1, graph1));
    assertFalse(model1.contains(foo, bar, foo));
    assertFalse(model1.contains(foo, bar, bar));
    assertFalse(model1.contains(foo, bar, foo, graph2));
    assertTrue(model1.contains(foo, bar, lit2));
}