Examples with ConstraintDefinition org.neo4j.graphdb.schema.ConstraintDefinition used on opensource projects

Example 46 with ConstraintDefinition

use of org.neo4j.graphdb.schema.ConstraintDefinition in project neo4j by neo4j.

the class SchemaWithPECAcceptanceTest method shouldListAddedConstraintsByRelationshipType.

@Test
public void shouldListAddedConstraintsByRelationshipType() throws Exception {
    // GIVEN
    ConstraintDefinition constraint1 = createRelationshipPropertyExistenceConstraint(Types.MY_TYPE, propertyKey);
    createRelationshipPropertyExistenceConstraint(Types.MY_OTHER_TYPE, propertyKey);
    // WHEN THEN
    assertThat(getConstraints(db, Types.MY_TYPE), containsOnly(constraint1));
}

Example 47 with ConstraintDefinition

use of org.neo4j.graphdb.schema.ConstraintDefinition in project neo4j by neo4j.

the class Neo4jMatchers method createConstraint.

public static ConstraintDefinition createConstraint(GraphDatabaseService db, Label label, String propertyKey) {
    try (Transaction tx = db.beginTx()) {
        ConstraintDefinition constraint = db.schema().constraintFor(label).assertPropertyIsUnique(propertyKey).create();
        tx.success();
        return constraint;
    }
}

Example 48 with ConstraintDefinition

use of org.neo4j.graphdb.schema.ConstraintDefinition in project neo4j by neo4j.

the class BatchInsertTest method shouldCreateUniquenessConstraint.

@Test
public void shouldCreateUniquenessConstraint() throws Exception {
    // Given
    Label label = label("Person");
    String propertyKey = "name";
    String duplicatedValue = "Tom";
    BatchInserter inserter = newBatchInserter();
    // When
    inserter.createDeferredConstraint(label).assertPropertyIsUnique(propertyKey).create();
    // Then
    GraphDatabaseService db = switchToEmbeddedGraphDatabaseService(inserter);
    try {
        try (Transaction tx = db.beginTx()) {
            List<ConstraintDefinition> constraints = Iterables.asList(db.schema().getConstraints());
            assertEquals(1, constraints.size());
            ConstraintDefinition constraint = constraints.get(0);
            assertEquals(label.name(), constraint.getLabel().name());
            assertEquals(propertyKey, single(constraint.getPropertyKeys()));
            db.createNode(label).setProperty(propertyKey, duplicatedValue);
            tx.success();
        }
        try (Transaction tx = db.beginTx()) {
            db.createNode(label).setProperty(propertyKey, duplicatedValue);
            tx.success();
        }
        fail("Uniqueness property constraint was violated, exception expected");
    } catch (ConstraintViolationException e) {
        assertEquals(format("Node(0) already exists with label `%s` and property `%s` = '%s'", label.name(), propertyKey, duplicatedValue), e.getMessage());
    } finally {
        db.shutdown();
    }
}

Example 49 with ConstraintDefinition

use of org.neo4j.graphdb.schema.ConstraintDefinition in project neo4j by neo4j.

the class UniquenessRecoveryTest method shouldHaveUniquenessConstraintForNamePropertyOnPersonLabel.

// ASSERTIONS
private static void shouldHaveUniquenessConstraintForNamePropertyOnPersonLabel(GraphDatabaseService db) {
    try (Transaction tx = db.beginTx()) {
        ConstraintDefinition constraint = Iterables.single(db.schema().getConstraints());
        assertEquals(ConstraintType.UNIQUENESS, constraint.getConstraintType());
        assertEquals("Person", constraint.getLabel().name());
        assertEquals("name", Iterables.single(constraint.getPropertyKeys()));
        tx.success();
    }
}

Example 50 with ConstraintDefinition

use of org.neo4j.graphdb.schema.ConstraintDefinition in project neo4j by neo4j.

the class DatabaseActions method dropRelationshipPropertyExistenceConstraint.

public boolean dropRelationshipPropertyExistenceConstraint(String typeName, Iterable<String> propertyKeys) {
    final Set<String> propertyKeysSet = Iterables.asSet(propertyKeys);
    ConstraintDefinition constraint = Iterables.singleOrNull(filteredRelationshipConstraints(typeName, relationshipPropertyExistenceFilter(propertyKeysSet)));
    if (constraint != null) {
        constraint.drop();
    }
    return constraint != null;
}