public AbstractEnvBuilder withName(final String name) {
            this.name = name;
            return this;
        }
@param dir The path where the environment will be located on the filesystem.
           Should be local disk and not shared storage. You can have multiple LMDB
           environments in this dir if you call {@link CustomEnvBuilder#subDir} with
           a dedicated subDir for each env.
stroom-lmdb/src/main/java/stroom/lmdb/LmdbEnvFactory.java