ID - Object identifier

Description

Each object has a unique identifier within its parent object. The ID value is assigned at the time of object creation. You can use the ID property value to distinguish one object from another, such as different tasks in the same job.

Characteristics

Usage	Job object or task object
Read-only	Always
Data type	Double

Values

The first job created in a job manager has the ID value of 1, and jobs are assigned ID values in numerical sequence as they are created after that.

The first task created in a job has the ID value of 1, and tasks are assigned ID values in numerical sequence as they are created after that.

Examples

Examine the ID property of different objects.

jm = findResource('scheduler','type','jobmanager', ...
          'name','MyJobManager','LookupURL','JobMgrHost');
j = createJob(jm)
createTask(j, @rand, 1, {2,4});
createTask(j, @rand, 1, {2,4});
tasks = get(j, 'Tasks');
get(tasks, 'ID')
ans = 
    [1]
    [2]

The ID values are the only unique properties distinguishing these two tasks.

See Also

Functions

createJob, createTask

Properties

Jobs, Tasks

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