Examples with ConjunctiveQuery fr.lirmm.graphik.graal.api.core.ConjunctiveQuery used on opensource projects

Example 26 with ConjunctiveQuery

use of fr.lirmm.graphik.graal.api.core.ConjunctiveQuery in project graal by graphik-team.

the class ConjunctiveQueryWithCompilation method backtrackHomomorphismBootstrapperTest2.

@Theory
public void backtrackHomomorphismBootstrapperTest2(Homomorphism<ConjunctiveQuery, AtomSet> hh, RulesCompilationFactory factory, AtomSet store) throws Exception {
    Assume.assumeFalse(store instanceof TripleStore);
    Assume.assumeTrue(hh instanceof HomomorphismWithCompilation);
    HomomorphismWithCompilation<ConjunctiveQuery, AtomSet> h = (HomomorphismWithCompilation<ConjunctiveQuery, AtomSet>) hh;
    store.addAll(DlgpParser.parseAtomSet("<P>(b,a)."));
    RuleSet rules = new LinkedListRuleSet();
    rules.add(DlgpParser.parseRule("<Q>(X,Y) :- <P>(X,Y)."));
    RulesCompilation comp = factory.create();
    comp.compile(rules.iterator());
    StaticChase.executeChase(store, rules);
    ConjunctiveQuery query = DlgpParser.parseQuery("?(X) :- <Q>(X,a).");
    CloseableIterator<Substitution> subReader;
    Substitution sub;
    subReader = h.execute(query, store, comp);
    Assert.assertTrue(subReader.hasNext());
    sub = subReader.next();
    Assert.assertEquals(DefaultTermFactory.instance().createConstant("b"), sub.createImageOf(DefaultTermFactory.instance().createVariable("X")));
    Assert.assertFalse(subReader.hasNext());
    subReader.close();
}

Example 27 with ConjunctiveQuery

use of fr.lirmm.graphik.graal.api.core.ConjunctiveQuery in project graal by graphik-team.

the class ConjunctiveQueryWithCompilation method backtrackHomomorphismBootstrapperTest1.

@Theory
public void backtrackHomomorphismBootstrapperTest1(Homomorphism<ConjunctiveQuery, AtomSet> hh, RulesCompilationFactory factory, AtomSet store) throws Exception {
    Assume.assumeFalse(store instanceof TripleStore);
    Assume.assumeTrue(hh instanceof HomomorphismWithCompilation);
    HomomorphismWithCompilation<ConjunctiveQuery, AtomSet> h = (HomomorphismWithCompilation<ConjunctiveQuery, AtomSet>) hh;
    store.addAll(DlgpParser.parseAtomSet("<P>(b,a)."));
    RuleSet rules = new LinkedListRuleSet();
    rules.add(DlgpParser.parseRule("<Q>(X,Y) :- <P>(X,Y)."));
    RulesCompilation comp = factory.create();
    comp.compile(rules.iterator());
    StaticChase.executeChase(store, rules);
    ConjunctiveQuery query = DlgpParser.parseQuery("?(X) :- <Q>(b,X).");
    CloseableIterator<Substitution> subReader;
    Substitution sub;
    subReader = h.execute(query, store, comp);
    Assert.assertTrue(subReader.hasNext());
    sub = subReader.next();
    Assert.assertEquals(DefaultTermFactory.instance().createConstant("a"), sub.createImageOf(DefaultTermFactory.instance().createVariable("X")));
    Assert.assertFalse(subReader.hasNext());
    subReader.close();
}

Example 28 with ConjunctiveQuery

use of fr.lirmm.graphik.graal.api.core.ConjunctiveQuery in project graal by graphik-team.

the class ConjunctiveQueryWithCompilation method issueWithAtom2SubstitutionConverter.

@Theory
public void issueWithAtom2SubstitutionConverter(RulesCompilationFactory factory, AtomSet store) throws Exception {
    Assume.assumeFalse(store instanceof TripleStore);
    HomomorphismWithCompilation<ConjunctiveQuery, AtomSet> h = AtomicQueryHomomorphism.instance();
    store.addAll(DlgpParser.parseAtomSet("<P>(a,a)."));
    RuleSet rules = new LinkedListRuleSet();
    rules.add(DlgpParser.parseRule("<Q>(X,Y,X) :- <P>(X,Y)."));
    RulesCompilation comp = factory.create();
    comp.compile(rules.iterator());
    StaticChase.executeChase(store, rules);
    ConjunctiveQuery query = DlgpParser.parseQuery("?(X) :- <Q>(X,Y,Y).");
    CloseableIterator<Substitution> results = h.execute(new DefaultConjunctiveQuery(query), store, comp);
    Assert.assertTrue(results.hasNext());
    results.close();
    query = DlgpParser.parseQuery("?(Y) :- <Q>(X,Y,Y).");
    results = h.execute(new DefaultConjunctiveQuery(query), store, comp);
    Assert.assertTrue(results.hasNext());
    results.close();
}

Example 29 with ConjunctiveQuery

use of fr.lirmm.graphik.graal.api.core.ConjunctiveQuery in project graal by graphik-team.

the class ConjunctiveQueryWithCompilation method test1.

// /////////////////////////////////////////////////////////////////////////
// TEST CASES
// /////////////////////////////////////////////////////////////////////////
@Theory
public void test1(Homomorphism<ConjunctiveQuery, AtomSet> hh, RulesCompilationFactory factory, AtomSet store) throws Exception {
    Assume.assumeFalse(store instanceof TripleStore);
    Assume.assumeTrue(hh instanceof HomomorphismWithCompilation);
    HomomorphismWithCompilation<ConjunctiveQuery, AtomSet> h = (HomomorphismWithCompilation<ConjunctiveQuery, AtomSet>) hh;
    store.add(DlgpParser.parseAtom("<P>(a)."));
    RuleSet rules = new LinkedListRuleSet();
    rules.add(DlgpParser.parseRule("<Q>(X) :- <P>(X)."));
    RulesCompilation comp = factory.create();
    comp.compile(rules.iterator());
    StaticChase.executeChase(store, rules);
    CloseableIterator<Substitution> results = h.execute(DlgpParser.parseQuery("?(X) :- <Q>(X)."), store, comp);
    Assert.assertTrue(results.hasNext());
    Substitution next = results.next();
    Assert.assertEquals(DefaultTermFactory.instance().createConstant("a"), next.createImageOf(DefaultTermFactory.instance().createVariable("X")));
    Assert.assertFalse(results.hasNext());
    results.close();
}

Example 30 with ConjunctiveQuery

use of fr.lirmm.graphik.graal.api.core.ConjunctiveQuery in project graal by graphik-team.

the class NaturalRDBMSStore method match.

// /////////////////////////////////////////////////////////////////////////
// METHODS
// /////////////////////////////////////////////////////////////////////////
@Override
public CloseableIterator<Atom> match(Atom atom) throws AtomSetException {
    if (!this.check(atom)) {
        return Iterators.<Atom>emptyIterator();
    }
    ConjunctiveQuery query = DefaultConjunctiveQueryFactory.instance().create(new LinkedListAtomSet(atom));
    SqlHomomorphism solver = SqlHomomorphism.instance();
    try {
        return new SubstitutionIterator2AtomIterator(atom, solver.execute(query, this));
    } catch (HomomorphismException e) {
        throw new AtomSetException(e);
    }
}