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The "MeetUp" page has been changed by MarvinHumphrey: https://wiki.apache.org/lucy/MeetUp?action=diff&rev1=3&rev2=4 Comment: Thwart !WikiLinks. Clownfish/Lucy-specific discussion questions for interfaces: - 1. Should Lucy's Query class be an interface instead of an abstract class? How about Analyzer, Searcher, Matcher, Collector, Compiler, IndexReader, DataReader, DataWriter, Lexicon, Posting, Folder, FileHandle, Lock, and SortExternal -- all of which are abstract classes? + 1. Should Lucy's Query class be an interface instead of an abstract class? How about Analyzer, Searcher, Matcher, Collector, Compiler, !IndexReader, !DataReader, !DataWriter, Lexicon, Posting, Folder, !FileHandle, Lock, and !SortExternal -- all of which are abstract classes? - 1. There are a handful of Lucy classes which are designed to be subclassed by users but are not abstract: QueryParser, IndexManager, Schema, FieldType, and Highlighter. Why is it challenging to change these to interfaces? + 1. There are a handful of Lucy classes which are designed to be subclassed by users but are not abstract: !QueryParser, !IndexManager, Schema, !FieldType, and Highlighter. Why is it challenging to change these to interfaces? 1. How can we change the Clownfish callback mechanism to be based on interfaces instead of classes? 1. Should Obj#Hash_Sum be moved to a "Hasher" interface? Should Obj#Clone be moved to a "Cloner" interface? Should Obj have any methods at all?
