MultiDoc

Interface MultiDoc specifies the interface for an object that supplies more than one piece of print data for a Print Job. "Doc" is a short, easy-to-pronounce term that means "a piece of print data," and a "multidoc" is a group of several docs. The client passes to the Print Job an object that implements interface MultiDoc, and the Print Job calls methods on that object to obtain the print data.

Interface MultiDoc provides an abstraction similar to a "linked list" of docs. A multidoc object is like a node in the linked list, containing the current doc in the list and a pointer to the next node (multidoc) in the list. The Print Job can call the multidoc's getDoc() method to get the current doc. When it's ready to go on to the next doc, the Print Job can call the multidoc's 登录查看完整内容