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

Example 41 with VarPattern

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

the class DefineQueryTest method whenDefiningANonRuleWithAWhenPattern_Throw.

@Test
public void whenDefiningANonRuleWithAWhenPattern_Throw() {
    VarPattern rule = label("yes").sub(label(ENTITY.getLabel())).when(var("x"));
    exception.expect(GraqlQueryException.class);
    exception.expectMessage(anyOf(// Either we see "entity" and an unexpected "when"...
    allOf(containsString("unexpected property"), containsString("when")), // ...or we see "when" and don't find the expected "then"
    containsString(GraqlQueryException.insertNoExpectedProperty("then", rule.admin()).getMessage())));
    qb.define(rule).execute();
}

Example 42 with VarPattern

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

the class UndefineQueryTest method whenUndefiningComplexSchema_TheEntireSchemaIsRemoved.

@Test
public void whenUndefiningComplexSchema_TheEntireSchemaIsRemoved() {
    Collection<VarPattern> schema = ImmutableList.of(label("pokemon").sub(ENTITY).has("pokedex-no").plays("ancestor").plays("descendant"), label("pokedex-no").sub(ATTRIBUTE).datatype(INTEGER), label("evolution").sub(RELATIONSHIP).relates("ancestor").relates("descendant"), label("ancestor").sub(ROLE), label("descendant").sub(ROLE));
    qb.define(schema).execute();
    EntityType pokemon = tx.getEntityType("pokemon");
    RelationshipType evolution = tx.getRelationshipType("evolution");
    AttributeType<Long> pokedexNo = tx.getAttributeType("pokedex-no");
    Role ancestor = tx.getRole("ancestor");
    Role descendant = tx.getRole("descendant");
    assertThat(pokemon.attributes().toArray(), arrayContaining(pokedexNo));
    assertThat(evolution.relates().toArray(), arrayContainingInAnyOrder(ancestor, descendant));
    assertThat(pokemon.plays().filter(r -> !r.isImplicit()).toArray(), arrayContainingInAnyOrder(ancestor, descendant));
    qb.undefine(schema).execute();
    assertNull(tx.getEntityType("pokemon"));
    assertNull(tx.getEntityType("evolution"));
    assertNull(tx.getAttributeType("pokedex-no"));
    assertNull(tx.getRole("ancestor"));
    assertNull(tx.getRole("descendant"));
}

Example 43 with VarPattern

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

the class InsertQueryTest method testInsertRepeat.

@Test
public void testInsertRepeat() {
    VarPattern language = var("x").has("name", "123").isa("language");
    InsertQuery query = qb.insert(language);
    assertEquals(0, qb.match(language).stream().count());
    query.execute();
    assertEquals(1, qb.match(language).stream().count());
    query.execute();
    assertEquals(2, qb.match(language).stream().count());
    query.execute();
    assertEquals(3, qb.match(language).stream().count());
    qb.match(language).delete("x").execute();
    assertEquals(0, qb.match(language).stream().count());
}

Example 44 with VarPattern

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

the class InsertQueryTest method testInsertRelation.

@Test
public void testInsertRelation() {
    VarPattern rel = var("r").isa("has-genre").rel("genre-of-production", "x").rel("production-with-genre", "y");
    VarPattern x = var("x").has("title", "Godfather").isa("movie");
    VarPattern y = var("y").has("name", "comedy").isa("genre");
    VarPattern[] vars = new VarPattern[] { rel, x, y };
    Pattern[] patterns = new Pattern[] { rel, x, y };
    assertNotExists(qb.match(patterns));
    qb.insert(vars).execute();
    assertExists(qb, patterns);
    qb.match(patterns).delete("r").execute();
    assertNotExists(qb, patterns);
}

Example 45 with VarPattern

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

the class DefineQueryTest method whenDefiningARule_TheRuleIsInTheKB.

@Test
public void whenDefiningARule_TheRuleIsInTheKB() {
    Pattern when = qb.parser().parsePattern("$x isa entity");
    Pattern then = qb.parser().parsePattern("$x isa entity");
    VarPattern vars = label("my-rule").sub(label(RULE.getLabel())).when(when).then(then);
    qb.define(vars).execute();
    assertNotNull(movies.tx().getRule("my-rule"));
}