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NSScriptWhoseTest Class Reference

Overview

NSScriptWhoseTest is an abstract class whose sole method is isTrue. Two concrete subclasses of NSScriptWhoseTest generate objects representing Boolean expressions comparing one object with another and objects representing multiple Boolean expressions connected by logical operators (OR, AND, NOT). These classes are, respectively, NSSpecifierTest and NSLogicalTest. In evaluating itself, an NSWhoseSpecifier invokes the isTrue method of its “test” object.

You shouldn’t need to subclass NSScriptWhoseTest, and you should rarely need to subclass one of its subclasses.

Adopted Protocols

• encodeWithCoder:

• initWithCoder:

Tasks

Evaluating a Test

• – isTrue

Instance Methods

isTrue

Returns a Boolean value that indicates whether the test represented by the receiver evaluates to YES.

- (BOOL)isTrue

Return Value

YES if the test represented by the receiver evaluates to YES, otherwise NO.

Availability

• Available in Mac OS X v10.0 and later.

Declared In

NSScriptWhoseTests.h

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