code: public ColumnModel sequenceGenerator(String name, String sequenceName, Integer initialValue,
  			Integer allocationSize) {
  		makeSureTableModelExist();
  		this.tableModel.sequenceGenerator(name, sequenceName, initialValue, allocationSize);
  		this.idGenerationType = GenerationType.SEQUENCE;
  		this.idGeneratorName = name;
  		return this;
  	}
docs: The value of this column will be generated by a sequence