@Override
    protected boolean performMigration(final DataSource dataSource, final Injector injector) {
        FlywayUtil.migrate(dataSource,
                getFlyWayLocations(),
                getMigrationTarget().orElse(null),
                getFlyWayTableName(),
                getModuleName());
        return true;
    }
@return An optional target version for flyway to migrate up to (inclusive).
Intended to be overridden only by classes testing specific migrations.
stroom-db-util/src/main/java/stroom/db/util/AbstractFlyWayDbModule.java