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	 *
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	 *
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	 */
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	 */
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	private static final long serialVersionUID = 1L;
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	private static final long serialVersionUID = 1L;
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	/**
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	/**
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	 *
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	 * Entity object's starting sequence number
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	 */
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	 */
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	public static final int ENTITY = 0;
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	public static final int ENTITY = 0;
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	/**
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	/**
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	 * Singleton instance that is de-serialized from file on the disk
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	 *
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	 *
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	 * @return 	SequenceGenerator 	instance of SequenceGenerator
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	 * @return 	SequenceGenerator 	instance of SequenceGenerator
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	 * @throws Exception
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	 * @throws Exception
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	 */
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	 */
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	public static final SequenceGenerator getInstance() throws Exception {
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	public static final SequenceGenerator getInstance() throws Exception {
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		return sequenceGenerator;
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		return sequenceGenerator;
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	}
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	}
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	/**
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	/**
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	 *
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	 * Instance memeber that records all current counts
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	 */
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	 */
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	private long[] currentCounts = null;
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	private long[] currentCounts = null;
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	/**
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	/**
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	 * A private Constructor prevents any other class from instantiating
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	 * A private Constructor prevents any other class from instantiating. All
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	 * objects that need dynamic sequence generation need to provide starting
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	 * number here.
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	 */
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	 */
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	private SequenceGenerator() {
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	private SequenceGenerator() {
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		this.currentCounts = new long[1];
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		this.currentCounts = new long[1];
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		// Set initial values
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		// Set initial values
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		this.currentCounts[ENTITY] = 1000000;
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		this.currentCounts[ENTITY] = 1000000;
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	}
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	}
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	/**
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	/**
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	 * Client of the class call this method to get new sequence number.
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	 * Once a sequence number if fetched it cannot be undone.
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	 *
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	 *
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	 * @param index
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	 * @param index
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	 * @return currentCount
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	 * @return currentCount
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	 * @throws Exception
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	 * @throws Exception
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	 */
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	 */