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

Example 26 with Pattern

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

the class QueryPlannerTest method inferRelationshipTypeWithARolePlayerWithNoType.

@Test
public void inferRelationshipTypeWithARolePlayerWithNoType() {
    Pattern pattern;
    ImmutableList<Fragment> plan;
    pattern = and(x.isa(thingy1), y.isa(thingy2), var().rel(x).rel(y).rel(z));
    plan = getPlan(pattern);
    assertEquals(2L, plan.stream().filter(LabelFragment.class::isInstance).count());
    pattern = and(y.isa(thingy2), z.isa(thingy4), var().rel(x).rel(y).rel(z));
    plan = getPlan(pattern);
    // Relationship type can now be inferred, so one more relationship type label
    assertEquals(3L, plan.stream().filter(LabelFragment.class::isInstance).count());
    assertEquals(3L, plan.stream().filter(fragment -> fragment instanceof OutIsaFragment || fragment instanceof InIsaFragment).count());
}

Example 27 with Pattern

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

the class QueryPlannerTest method inferUniqueRelationshipType.

@Test
public void inferUniqueRelationshipType() {
    Pattern pattern;
    ImmutableList<Fragment> plan;
    pattern = and(x.isa(thingy1), y.isa(thingy2), var().rel(x).rel(y));
    plan = getPlan(pattern);
    assertEquals(2L, plan.stream().filter(LabelFragment.class::isInstance).count());
    pattern = and(x.isa(thingy), y.isa(thingy2), var().rel(x).rel(y));
    plan = getPlan(pattern);
    assertEquals(2L, plan.stream().filter(LabelFragment.class::isInstance).count());
    pattern = and(x.isa(thingy2), y.isa(thingy4), var().rel(x).rel(y));
    plan = getPlan(pattern);
    // Relationship type can now be inferred, so one more relationship type label
    assertEquals(3L, plan.stream().filter(LabelFragment.class::isInstance).count());
    // Should start from the inferred relationship type, instead of role players
    String relationship = plan.get(3).start().getValue();
    assertNotEquals(relationship, x.getValue());
    assertNotEquals(relationship, y.getValue());
}

Example 28 with Pattern

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

the class QueryPlannerTest method inferRelationshipTypeWhereRolePlayedBySuperType.

@Test
public void inferRelationshipTypeWhereRolePlayedBySuperType() {
    Pattern pattern;
    ImmutableList<Fragment> plan;
    pattern = and(x.isa(thingy), y.isa(thingy4), var().rel(x).rel(y));
    plan = getPlan(pattern);
    assertEquals(2L, plan.stream().filter(LabelFragment.class::isInstance).count());
    pattern = and(x.isa(thingy), y.isa(thingy2), z.isa(thingy4), var().rel(x).rel(y).rel(z));
    plan = getPlan(pattern);
    // Relationship type can now be inferred, so one more relationship type label
    assertEquals(4L, plan.stream().filter(LabelFragment.class::isInstance).count());
    assertEquals(4L, plan.stream().filter(fragment -> fragment instanceof OutIsaFragment || fragment instanceof InIsaFragment).count());
}

Example 29 with Pattern

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

the class QueryPlannerTest method inferRelationshipTypeWhereAVarHasIncorrectTypes.

@Test
public void inferRelationshipTypeWhereAVarHasIncorrectTypes() {
    Pattern pattern;
    ImmutableList<Fragment> plan;
    pattern = and(x.isa(veryRelated), x.isa(thingy2), y.isa(thingy4), var().rel(x).rel(y));
    plan = getPlan(pattern);
    assertEquals(3L, plan.stream().filter(LabelFragment.class::isInstance).count());
    assertEquals(3L, plan.stream().filter(fragment -> fragment instanceof OutIsaFragment || fragment instanceof InIsaFragment).count());
    pattern = and(x.isa(veryRelated), y.isa(thingy4), var().rel(x).rel(y));
    plan = getPlan(pattern);
    assertEquals(2L, plan.stream().filter(LabelFragment.class::isInstance).count());
    assertEquals(2L, plan.stream().filter(fragment -> fragment instanceof OutIsaFragment || fragment instanceof InIsaFragment).count());
}

Example 30 with Pattern

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

the class QueryPlannerTest method sameLabelFragmentShouldNotBeAddedTwice.

@Test
public void sameLabelFragmentShouldNotBeAddedTwice() {
    Pattern pattern;
    ImmutableList<Fragment> plan;
    pattern = and(x.isa(thingy2), y.isa(thingy4), z.isa(thingy2), var().rel(x).rel(y), var().rel(z).rel(y));
    plan = getPlan(pattern);
    // 2 thingy2 label, 1 thingy4, 1 inferred relationship label
    assertEquals(4L, plan.stream().filter(LabelFragment.class::isInstance).count());
    // 5 isa fragments: x, y, z, relationship between x and y, relationship between z and y
    assertEquals(5L, plan.stream().filter(fragment -> fragment instanceof OutIsaFragment || fragment instanceof InIsaFragment).count());
}