Examples with Match ai.grakn.graql.Match used on opensource projects

Example 11 with Match

use of ai.grakn.graql.Match in project grakn by graknlabs.

the class MatchTest method testVariableAsRoleplayer.

@Test
public void testVariableAsRoleplayer() {
    Match query = qb.match(var().rel(x.isa("movie")).rel("genre-of-production", var().has("name", "crime")));
    assertThat(query, variable(x, containsInAnyOrder(godfather, heat)));
}

Example 12 with Match

use of ai.grakn.graql.Match in project grakn by graknlabs.

the class MatchTest method testVariablesEverywhere.

@Test
public void testVariablesEverywhere() {
    Match query = qb.match(var().rel(label("production-with-genre"), x.isa(y.sub(label("production")))).rel(var().has("name", "crime")));
    assertThat(query, results(containsInAnyOrder(allOf(hasEntry(is(x), godfather), hasEntry(is(y), production)), allOf(hasEntry(is(x), godfather), hasEntry(is(y), movie)), allOf(hasEntry(is(x), heat), hasEntry(is(y), production)), allOf(hasEntry(is(x), heat), hasEntry(is(y), movie)))));
}

Example 13 with Match

use of ai.grakn.graql.Match in project grakn by graknlabs.

the class MatchBenchmark method match.

@Benchmark
public void match() {
    Match match = graph.graql().match(var("x").isa(BENCHMARK_ENTITY_TYPE).has(BENCHMARK_ATTRIBUTE_TYPE, "0"));
    GetQuery answers = match.get();
    Optional<Answer> first = answers.stream().findFirst();
    first.get();
}

Example 14 with Match

use of ai.grakn.graql.Match in project grakn by graknlabs.

the class QueryVisitor method visitGetQuery.

@Override
public GetQuery visitGetQuery(GraqlParser.GetQueryContext ctx) {
    Set<Var> vars = ctx.VARIABLE().stream().map(this::getVariable).collect(toSet());
    Match match = visitMatchPart(ctx.matchPart());
    if (vars.isEmpty()) {
        return match.get();
    } else {
        return match.get(vars);
    }
}

Example 15 with Match

use of ai.grakn.graql.Match in project grakn by graknlabs.

the class QueryVisitor method visitMatchOrderBy.

@Override
public Match visitMatchOrderBy(GraqlParser.MatchOrderByContext ctx) {
    Match match = visitMatchPart(ctx.matchPart());
    // decide which ordering method to use
    Var var = getVariable(ctx.VARIABLE());
    if (ctx.order() != null) {
        return match.orderBy(var, visitOrder(ctx.order()));
    } else {
        return match.orderBy(var);
    }
}