To enter the make permanent action:
make action for three different purposes:
To enter the make permanent action:
make item permanent
Once an item is permanent, G2 does not delete it when you reset your knowledge base. G2 retains the current state of the item including rotation, color, and location. G2 does not save the values of variables and parameters, or the elements of arrays and lists, unless their elements are permanent. For more information about permanent arrays and lists, see Chapter 16, Lists and Arrays.
There are two restrictions to making items exist permanently:
make permanent action on a permanent item to make a transient change permanent. For example, changing the array-length of a permanent array and subsequently using a make permanent action on that array retains the array length. Here are examples of the
make permanent action, one making a transient item permanent, and the other making transient changes to a permanent item permanent.
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Making Permanent Items Transient
You can make a permanent item transient so that you can transfer it programmatically.
Tip: You do not have to make items transient to delete them. Permanent items can be deleted programmatically as described in Deleting Items Without First Making Them Transient.
To enter the make transient action:
make item transient
When you make an item transient, all of its connections become transient. When you make a workspace transient, all items upon it become transient.
The next example makes a parameter transient, creates a new workspace, and transfers the parameter to the new workspace.
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Limitations to Transiency
An item cannot be made transient when any one of these conditions is true:
To make a workspace the subworkspace of an item:
make kb-workspace the subworkspace of item
If the target item already has a subworkspace, you must remove that subworkspace before executing this action by either transferring the subworkspace to another item, or deleting it.
The next example makes a subworkspace transient, makes it the subworkspace of an item, and makes it permanent.
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Creating a Subworkspace Programmatically
Making a transient workspace the subworkspace of an item is part of creating a subworkspace programmatically. First, use the create action to create a workspace item, and then make it the subworkspace of the desired item. Activation Status of Subworkspaces
You can enable or disable all workspaces and subworkspaces. Additionally, some subworkspaces are activatable, as described under activate. By default, workspaces and subworkspaces are enabled when G2 starts, while activatable subworkspaces are deactivated, and must be activated programmatically.
While the enabled and activated statuses of a subworkspace are separate properties, they can have similar results. For example, when G2 starts, it invokes every
initially rule upon enabled workspaces and subworkspaces. Activating an activatable subworkspace at any time invokes any initially rules that reside upon it.