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Some of the basic OFBiz temporal expressions are ranges - which simplifies expression creation. For example, if an event occurs every Monday, Tuesday, and Wednesday, you could create an expression for each day and make them members of a Union expression, or you could use a single Day Of Week Range expression that includes Monday through Wednesday.

Sometimes recurring events need to be rescheduled , - like when they fall on a holiday, or when maintenance is being performed. The Substitution expression can be used to reschedule recurring events.

In the temporal expression definitions that follow, the expressions will be shown like this:

  Expression(parameter1, parameter2, ...)
  Collection:
    Member Expression(parameter1, parameter2, ...)
    Member Expression(parameter1, parameter2, ...)

Basic Expressions

Expression Collections

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