Please see my comments in-line. 1. For the indexing of these chapters, how many fields that need to be declared? Can I just declare only one field for the contents?
This depends on what you need to search with. E.g if only plain content (chapters) are to be searched then one indexed field is required. Also if you want to update the index then an id field is required per Lucene document. There might be a requirement where search on chapter title can be provided for which a title field can be added. 2. Is the "Index" saved as a file or loaded into the memory? I think it depends on the type of Lucene Direcotry used. E.g. RAMDirectory is a in memory implementation whereas FsDirectory stores index on file system. 2. Can we use multiple terms for the user query such as "Information Technology in Education" or we only allowed to use single term. Lucene has support of single term search and phrase search too. "Information Technology in Education" as in your question can be searched as phrase query. Regards, Modassar On Fri, Aug 7, 2015 at 1:07 PM, Nantha Kumar Subramaniam < nanthaku...@oum.edu.my> wrote: > Good day > I am new to Lucene and have started to explore Lucene. > > I have questions: > > I have a book in which all the chapters are in pdf. I plan to index all > these individual chapters in Lucene using Tika for the text extraction. > > 1. For the indexing of these chapters, how many fields that need to be > declared? Can I just declare only one field for the contents? > > 2. Is the "Index" saved as a file or loaded into the memory? > > 2. Can we use multiple terms for the user query such as "Information > Technology in Education" or we only allowed to use single term. > > > Thank you.. > > Regards, > > > Assoc Prof Dr Nantha Kumar Subramaniam > *Head of E-Learning* > Open University Malaysia (OUM) >
