Time Extents

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By default, instances of IloActivity use the resource from the start time of the activity to the end time of the activity. Breakable instances of IloActivity also use the resource throughout their duration, including break times. It is possible to specify a time range different from the default by declaring a time extent. The time extent defines when the invoking activity requires the resource, given its start and end times.

• IloFromStartToEnd indicates the activity requires the resource at all times from its start time to its end time. This is the default time extent.

• IloAfterEnd indicates the activity requires the resource at all times after its end time.

• IloAfterStart indicates the activity requires the resource at all times after its start time.

• IloBeforeEnd indicates the activity requires the resource at all times before its end time.

• IloBeforeStart indicates the activity requires the resource at all times before its start time.

• IloBeforeStartAndAfterEnd indicates the activity requires the resource at all times before its start time and after its end time.

• IloAlways indicates the activity requires the resource at all times. This time extent can be used to optimize the maximal available capacity of a resource.

• IloNever indicates the activity requires the resource at no time.