Monkeybread Xojo plugin - NSCompoundPredicateMBS class

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NSCompoundPredicateMBS class

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
class	iCloud	MBS MacCloud Plugin	11.3	✅ Yes	❌ No	❌ No	✅ Yes	All

NSCompoundPredicate is a subclass of NSPredicate used to represent logical "gate" operations (AND/OR/NOT) and comparison operations.

Example

dim n1 as NSPredicateMBS = NSPredicateMBS.predicateWithValue(true)
dim n2 as NSPredicateMBS = NSPredicateMBS.predicateWithValue(false)

dim n as NSPredicateMBS = NSCompoundPredicateMBS.orPredicateWithSubpredicates(array(n1,n2))
MsgBox n.predicateFormat

Comparison operations are based on two expressions, as represented by instances of the NSExpression class. Expressions are created for constant values, key paths, and so on.

In Mac OS X v10.5 and later and in iOS, you can use NSCompoundPredicate to create an AND or OR compound predicate (but not a NOT compound predicate) using an array with 0, 1, or more elements:

An AND predicate with no subpredicates evaluates to TRUE.
An OR predicate with no subpredicates evaluates to FALSE.
A compound predicate with one or more subpredicates evaluates to the truth of its subpredicates.

Subclass of the NSPredicateMBS class.

3 methods
- method compoundPredicateType as Integer
- method Constructor(type as Integer, predicates() as NSPredicateMBS)
- method subpredicates as NSPredicateMBS()
3 shared methods
- shared method andPredicateWithSubpredicates(predicates() as NSPredicateMBS) as NSPredicateMBS
- shared method notPredicateWithSubpredicate(predicate as NSPredicateMBS) as NSPredicateMBS
- shared method orPredicateWithSubpredicates(predicates() as NSPredicateMBS) as NSPredicateMBS
3 constants

Compound Predicate Types

Constant	Value	Description
kAnd	1	A logical AND predicate.
kNot	0	A logical NOT predicate.
kOR	2	A logical OR predicate.

Super class NSPredicateMBS

property Handle as Integer
6 methods
- method Constructor(predicateFormat as string)
- method Constructor(predicateFormat as string, arguments() as Variant)
- method Constructor(value as boolean)
- method description as string
- method predicateFormat as string
- method Print
3 shared methods
- shared method predicateWithFormat(predicateFormat as string) as NSPredicateMBS
- shared method predicateWithFormat(predicateFormat as string, arguments() as Variant) as NSPredicateMBS
- shared method predicateWithValue(value as boolean) as NSPredicateMBS

This class has no sub classes.

Some examples using this class:

/Mac64bit/Contacts/Contacts Display Person

Blog Entries

The items on this page are in the following plugins: MBS MacCloud Plugin.

NSComparisonPredicateMBS - NSControlMBS

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