replacementClass(for:)
Overridden by subclasses to substitute a custom class for an NSXML class that the parser uses to create node instances.
Declaration
class func replacementClass(for cls: AnyClass) -> AnyClassParameters
- cls:
A
Classobject identifying an NSXML class that is to be replaced by your custom class.
Return Value
The substituted class.
Discussion
For example, if you have a custom subclass of XMLElement that you want to be used in place of NSXMLElement, you would make the following override:
+ (Class)replacementClassForClass:(Class)currentClass {
if ( currentClass == [NSXMLElement class] ) {
return [MyCustomElementClass class];
}
}This method is invoked before a document is parsed. The substituted class must be a subclass of XMLNode, NSXMLDocument, NSXMLElement, XMLDTD, or XMLDTDNode.