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

Example 1 with ConstraintDefinition

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

the class Schema method reportConstraints.

private void reportConstraints(Output out, Iterable<ConstraintDefinition> constraints) throws RemoteException {
    int j = 0;
    for (ConstraintDefinition constraint : constraints) {
        if (j == 0) {
            out.println();
            out.println("Constraints");
        }
        out.println(indent(constraint.toString()));
        j++;
    }
    if (j == 0) {
        out.println();
        out.println("No constraints");
    }
}

Example 2 with ConstraintDefinition

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

the class LucenePartitionedIndexStressTesting method dropAllIndexes.

private void dropAllIndexes() {
    try (Transaction transaction = db.beginTx()) {
        Schema schema = db.schema();
        schema.getConstraints().forEach(ConstraintDefinition::drop);
        schema.getIndexes().forEach(IndexDefinition::drop);
        transaction.success();
    }
}

Example 3 with ConstraintDefinition

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

the class PropertyExistenceConstraintsIT method createLabelUniquenessPropertyConstraint.

private ConstraintDefinition createLabelUniquenessPropertyConstraint(String labelName, String propertyKey) {
    try (Transaction tx = graphdb().beginTx()) {
        ConstraintDefinition constraintDefinition = graphdb().schema().constraintFor(label(labelName)).assertPropertyIsUnique(propertyKey).create();
        tx.success();
        return constraintDefinition;
    }
}

Example 4 with ConstraintDefinition

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

the class GraphDbHelper method getPropertyUniquenessConstraints.

public Iterable<ConstraintDefinition> getPropertyUniquenessConstraints(String labelName, final String propertyKey) {
    try (Transaction tx = database.getGraph().beginTransaction(implicit, AnonymousContext.read())) {
        Iterable<ConstraintDefinition> definitions = Iterables.filter(item -> {
            if (item.isConstraintType(ConstraintType.UNIQUENESS)) {
                Iterable<String> keys = item.getPropertyKeys();
                return single(keys).equals(propertyKey);
            } else {
                return false;
            }
        }, database.getGraph().schema().getConstraints(label(labelName)));
        tx.success();
        return definitions;
    }
}

Example 5 with ConstraintDefinition

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

the class SchemaConstraintsIT method drop_constraint.

@Documented("Drop uniqueness constraint.\n" + "Drop uniqueness constraint for a label and a property.")
@Test
@GraphDescription.Graph(nodes = {})
public void drop_constraint() throws Exception {
    data.get();
    String labelName = labels.newInstance(), propertyKey = properties.newInstance();
    ConstraintDefinition constraintDefinition = createLabelUniquenessPropertyConstraint(labelName, propertyKey);
    assertThat(getConstraints(graphdb(), label(labelName)), containsOnly(constraintDefinition));
    gen.get().expectedStatus(204).delete(getSchemaConstraintLabelUniquenessPropertyUri(labelName, propertyKey)).entity();
    assertThat(getConstraints(graphdb(), label(labelName)), isEmpty());
}