Some awesome tools.

• Monitor
• Sequence
• Page Info
• Date Time

Using MonitorWaterLineCalculator class, we can calculate monitor water line, for example TP95 :

// create a calculator with water line 95
MonitorWaterLineCalculator calculator = new MonitorWaterLineCalculator(95);
// call calculate method to calculate value
calculator.calculate(param);
// call getResult method to get calculate result
calculator.getResult();

Using FlowNoGenerator class, we can get a unique flow sequence, for example :

String uniqueNo = FlowNoGenerator.generate("SC");

or

String uniqueNo = FlowNoGenerator.generate("SC", "BIC");

as above, generate method have two signatures:

• generate(String sysCode)

• generate(String sysCode, String bizCode)

The first parameter is sysCode means system code, the second parameter is bizCode means business code.

If we only pass a parameter, it's stand by sysCode, and bizCode will be set 000 as a default value.

Using PageHelper<T> class, we can divide page, for example：

List<String> paramList = new ArrayList<String>();
PageHelper<String> pageHelper = new PageHelper<String>(paramList);
List<String> dividePageResultList = pageHelper.getList();

or

List<String> paramList = new ArrayList<String>();
PageHelper<String> pageHelper = new PageHelper<String>(1, 10, paramList);
List<String> dividePageResultList = pageHelper.getList();

as above, PageHelper class have two construction method :

• PageHelper(List<T> list)

• PageHelper(int pageNum, int pageSize, List<T> list)

The first construction method will call the second construction method :

• pageNum : the number of page
• pageSize : the capacity of per page
• list : the data list that we want to divide page

If we instance PageHelper with the only parameter of list, the default value of pageNum is 1 and pageSize is 10.

Using ThreadSafeDateUtil class, we can get thread safe date time method.