return clazz == Date.class;
        }

    }

    public int getBulkBufferSize() {
        return bulkBufferSize;
    }

    public void setBulkBufferSize(final int bulkBufferSize) {
        this.bulkBufferSize = bulkBufferSize;
    }

    public void setNumberOfShards(final int numberOfShards) {
        this.numberOfShards = numberOfShards;
    }