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

Example 91 with Match

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

the class DefineQueryTest method testDefineReferenceByName.

@Test
public void testDefineReferenceByName() {
    String roleTypeLabel = HAS_OWNER.getLabel("title").getValue();
    qb.define(label("new-type").sub(Schema.MetaSchema.ENTITY.getLabel().getValue()), label("new-type").plays(roleTypeLabel)).execute();
    qb.insert(var("x").isa("new-type")).execute();
    Match typeQuery = qb.match(var("n").label("new-type"));
    assertEquals(1, typeQuery.stream().count());
    // We checked count ahead of time
    // noinspection OptionalGetWithoutIsPresent
    EntityType newType = typeQuery.get("n").findFirst().get().asEntityType();
    assertTrue(newType.plays().anyMatch(role -> role.equals(movies.tx().getRole(roleTypeLabel))));
    assertExists(qb, var().isa("new-type"));
}

Example 92 with Match

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

the class DefineQueryTest method testDefineSubResourceType.

@Test
public void testDefineSubResourceType() {
    qb.define(label("my-type").sub(Schema.MetaSchema.ATTRIBUTE.getLabel().getValue()).datatype(AttributeType.DataType.STRING), label("sub-type").sub("my-type")).execute();
    Match match = qb.match(var("x").label("sub-type"));
    AttributeType.DataType datatype = match.iterator().next().get("x").asAttributeType().getDataType();
    Assert.assertEquals(AttributeType.DataType.STRING, datatype);
}

Example 93 with Match

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

the class DefineQueryTest method testResourceTypeRegex.

@Test
public void testResourceTypeRegex() {
    qb.define(label("greeting").sub(Schema.MetaSchema.ATTRIBUTE.getLabel().getValue()).datatype(AttributeType.DataType.STRING).regex("hello|good day")).execute();
    Match match = qb.match(var("x").label("greeting"));
    assertEquals("hello|good day", match.get("x").findFirst().get().asAttributeType().getRegex());
}

Example 94 with Match

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

the class DeleteQueryTest method afterDeletingAllInstances_TheTypeCanBeUndefined.

@Test
public void afterDeletingAllInstances_TheTypeCanBeUndefined() {
    Match movie = qb.match(x.isa("movie"));
    assertNotNull(movieKB.tx().getEntityType("movie"));
    assertExists(movie);
    movie.delete(x).execute();
    assertNotNull(movieKB.tx().getEntityType("movie"));
    assertNotExists(movie);
    qb.undefine(label("movie").sub("production")).execute();
    assertNull(movieKB.tx().getEntityType("movie"));
}

Example 95 with Match

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

the class QueryErrorTest method testGetNonExistentVariable.

@Test
public void testGetNonExistentVariable() {
    Match match = qb.match(var("x").isa("movie"));
    Stream<Concept> concepts = match.get("y");
    exception.expect(GraqlQueryException.class);
    exception.expectMessage(ErrorMessage.VARIABLE_NOT_IN_QUERY.getMessage(Graql.var("y")));
    // noinspection ResultOfMethodCallIgnored
    concepts.count();
}