This activity can only be used in microflows, not in nanoflows.
The List Operation activity can perform various actions on a list. See below for details on these actions.
See Microflow Element Common Properties for properties that all activities share (for example, caption). This page only describes the properties specific to the action.
2 Operation Types
A list operation action can execute any of the following types of operations.
These binary operations have as an input a list and either another list or an object. The resulting type depends on the type of the operation. All lists and objects must relate to the same entity.
|Union||The result is a combination of the elements of both parameters avoiding duplicates.||List|
|Intersect||The result is a list containing elements that appear in both parameters.||List|
|Subtract||The result is the first parameter with the element(s) of the second parameter removed.||List|
|Contains||Checks whether all elements of the second parameter are present in the first parameter.||Boolean|
|Equals||Checks whether the lists contain the same elements.||Boolean|
|Sort||Allows you to sort a list based on a number of a attributes. The attributes are ordered to determine their priority while sorting. The input list remains in its original order while the sorted list is stored in the output variable.||List|
2.3 Member Inspections
These operations take a single list and a member (attribute or association) as input. The resulting type depends on the type of the operation.
|Find||Find the first object of which the member has the given value. Return an empty object if no matching object is found.||Object|
|Filter||Find all objects of which the member has the given value. Return an empty list if no matching object is found.||List|
These unary operations have a list as input and either an object or another list as a resulting type, depending on the operation.
|Head||The result is the first element of the list, or empty if the parameter contains zero elements or was initialized as empty.||Object|
|Tail||The result is a list containing all elements of the parameter except the first, or an empty list if the parameter contains zero elements or was initialized as empty.||List|
3 Output Properties
Defines the name of the resulting List, Object or Boolean variable. The variable can be used by all activities that follow this activity.