/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.kernel.api.impl.schema;

import java.util.concurrent.TimeUnit;
import java.util.function.Function;
import org.neo4j.graphdb.Label;
import org.neo4j.graphdb.Transaction;

public final class DatabaseFunctions {
    private DatabaseFunctions() {
        throw new AssertionError("Not for instantiation!");
    }

    public static Function<Transaction, Void> index(Label label, String propertyKey) {
        return tx -> {
            tx.schema().indexFor(label).on(propertyKey).create();
            return null;
        };
    }

    public static Function<Transaction, Void> uniquenessConstraint(Label label, String propertyKey) {
        return tx -> {
            tx.schema().constraintFor(label).assertPropertyIsUnique(propertyKey).create();
            return null;
        };
    }

    public static Function<Transaction, Void> awaitIndexesOnline(long timeout, TimeUnit unit) {
        return tx -> {
            tx.schema().awaitIndexesOnline(timeout, unit);
            return null;
        };
    }
}
