Examples with VarProperty ai.grakn.graql.admin.VarProperty used on opensource projects

Example 1 with VarProperty

use of ai.grakn.graql.admin.VarProperty in project grakn by graknlabs.

the class GraqlTraversalPlanner method planFromTraversal.

/**
 * @param atoms list of current atoms of interest
 * @param queryPattern corresponding pattern
 * @return an optimally ordered list of provided atoms
 */
static ImmutableList<Atom> planFromTraversal(List<Atom> atoms, PatternAdmin queryPattern, EmbeddedGraknTx<?> tx) {
    Multimap<VarProperty, Atom> propertyMap = HashMultimap.create();
    atoms.stream().filter(at -> !(at instanceof OntologicalAtom)).forEach(at -> at.getVarProperties().forEach(p -> propertyMap.put(p, at)));
    Set<VarProperty> properties = propertyMap.keySet();
    GraqlTraversal graqlTraversal = GreedyTraversalPlan.createTraversal(queryPattern, tx);
    ImmutableList<Fragment> fragments = graqlTraversal.fragments().iterator().next();
    ImmutableList.Builder<Atom> builder = ImmutableList.builder();
    builder.addAll(atoms.stream().filter(at -> at instanceof OntologicalAtom).iterator());
    builder.addAll(fragments.stream().map(Fragment::varProperty).filter(Objects::nonNull).filter(properties::contains).distinct().flatMap(p -> propertyMap.get(p).stream()).distinct().iterator());
    return builder.build();
}

Example 2 with VarProperty

use of ai.grakn.graql.admin.VarProperty in project grakn by graknlabs.

the class VarPatternImpl method toString.

@Override
public final String toString() {
    Collection<VarPatternAdmin> innerVars = innerVarPatterns();
    innerVars.remove(this);
    getProperties(HasAttributeProperty.class).map(HasAttributeProperty::attribute).flatMap(r -> r.innerVarPatterns().stream()).forEach(innerVars::remove);
    if (innerVars.stream().anyMatch(VarPatternImpl::invalidInnerVariable)) {
        LOG.warn("printing a query with inner variables, which is not supported in native Graql");
    }
    StringBuilder builder = new StringBuilder();
    String name = var().isUserDefinedName() ? var().toString() : "";
    builder.append(name);
    if (var().isUserDefinedName() && !properties().isEmpty()) {
        // Add a space after the var name
        builder.append(" ");
    }
    boolean first = true;
    for (VarProperty property : properties()) {
        if (!first) {
            builder.append(" ");
        }
        first = false;
        property.buildString(builder);
    }
    return builder.toString();
}

Example 3 with VarProperty

use of ai.grakn.graql.admin.VarProperty in project grakn by graknlabs.

the class DefineQueryPropertyTest method aDefineQueryWithoutASubOrPlaysOrRelatesProperty_CannotBeInserted.

@Ignore("Currently no error message is returned when trying to insert an empty set of propoerties. I am not entirely sure this is correct")
@Property
public void aDefineQueryWithoutASubOrPlaysOrRelatesProperty_CannotBeInserted(@Open GraknTx tx, @Size(max = 5) Set<VarProperty> properties) {
    boolean containsSub = properties.stream().anyMatch(SubProperty.class::isInstance);
    boolean containsPlays = properties.stream().anyMatch(PlaysProperty.class::isInstance);
    boolean containsRelates = properties.stream().anyMatch(RelatesProperty.class::isInstance);
    assumeFalse(containsSub || containsPlays || containsRelates);
    VarPatternAdmin pattern = Patterns.varPattern(Graql.var("x"), properties);
    exception.expect(GraqlQueryException.class);
    tx.graql().define(pattern).execute();
}

Example 4 with VarProperty

use of ai.grakn.graql.admin.VarProperty in project grakn by graknlabs.

the class PatternPropertyTests method patternsWithDifferentVariablesAndTheSameProperties_ShouldNotBeEquivalent.

@Property
public void patternsWithDifferentVariablesAndTheSameProperties_ShouldNotBeEquivalent(Var var1, Var var2, Set<VarProperty> properties) {
    assumeThat(var1, not(is(var2)));
    VarPatternAdmin varPattern1 = Patterns.varPattern(var1, properties);
    VarPatternAdmin varPattern2 = Patterns.varPattern(var2, properties);
    assertNotEquals(varPattern1, varPattern2);
}

Example 5 with VarProperty

use of ai.grakn.graql.admin.VarProperty in project grakn by graknlabs.

the class InsertQueryPropertyTest method anInsertQueryWithoutAnIsaProperty_CannotBeInserted.

@Ignore("Currently no error message is returned when trying to insert an empty set of propoerties. I am not entirely sure this is correct")
@Property
public void anInsertQueryWithoutAnIsaProperty_CannotBeInserted(@Open GraknTx tx, @Size(max = 5) Set<VarProperty> properties) {
    boolean containsIsa = properties.stream().anyMatch(IsaProperty.class::isInstance);
    assumeFalse(containsIsa);
    VarPatternAdmin pattern = Patterns.varPattern(Graql.var("x"), properties);
    exception.expect(GraqlQueryException.class);
    tx.graql().insert(pattern).execute();
}