PrF UG queries query editor

The Query Editor

Protege-Frames User's Guide
Queries
The Queries Tab
The Query Editor
The Search Results Pane
The Query Library Pane
Creating a Single Query
Combining Multiple Queries
Chaining Multiple Queries
Running a Query
Saving a Query
Retrieving a Query
Clearing a Query
Exporting Query Results
Glossary, Editing Help

The Query Editor allows you to enter, modify, or save your queries. The Query Editor has the following components:

1. One or more query bars, where you can construct a query by selecting a class, slot, criterion, and value.

2. The Combined Query buttons, which allow you to add and remove additional query bars, and to specify how they are combined.

3. The Find button, which allows you to run your query.

Query Bar(s)

Each query bar has:

1. A Class entry field, which allows you to specify a class by clicking the Select Class () button. If a class is already shown, using the Select Class button replaces it. You can also view the selected class by clicking the View Class () button, or remove it by clicking the Remove Class () button.

2. A Slot entry field, which allows you to specify a slot by clicking the Select Slot () button. If a slot is already shown, using the Select Slot button replaces it. You can also view the selected slot by clicking the View Slot () button, or remove it by clicking the Remove Slot () button.

3. A criteria menu, which allows you to set the criteria for the query, based on the slot.

4. A value entry bar or menu, which allows you to set the value for comparison. The entry type is based on the slot value type.

Choices for the criteria menu and value are as follows:

Slot Type	Criteria Menu	Action
Boolean		Verifies whether or not the Boolean value is true or false, as selected from the menu at the right.
Class		The selected criterion is compared to a class selected at the right. To select a class, click the Select Class () button and make a selection from the dialog. To remove a class, click the Remove Class () button. Only one class can be selected.
Float		The selected criterion is compared to the value typed in the Float entry bar at the right.
Instance		The selected criterion is compared to an instance or query selected at the right. To select an instance, click the Select Instance () button and make a selection from the dialog. To select a query, click the Select Query () button and make a selection from the dialog. To remove an instance or query, click the Remove Instance () button. Only one instance or query can be selected.
Integer		The selected criterion is compared to the value typed in the Integer entry bar at the right.
String		The selected criterion is compared to all or part of a string typed in the entry bar to the right. For example, selecting begins with and typing M in the String entry bar will find all instances of the selected class/slot combination that begin with M.
Symbol		The Symbol entry bar to the right becomes a drop-down menu that displays all possible values for the slot. The selected criterion is compared to the value.

Combined Query Buttons

More	Click this button to create an additional query bar, which can then be set with class, slot, and criterion.
Fewer	If there are two or more query bars, click this button to remove the bottom-most query bar.
Clear	Click this button to clear all query bars and reduce the Query Editor to a single, blank query bar.
Match All	For two or more query bars, click this button to specify that any instance found must match all of the criteria (the intersection or AND) specified in the query bars.
Match Any	For two or more query bars, click this button to specify that any instance found must match at least one of the criteria (the union or OR) specified in the query bars.