Ferret / David Balmain.

Format:

Book

Author/Creator:

Balmain, David.

Language:

English

Subjects (All):

Database management.

Query languages (Computer science).

Relational databases.

Ruby (Computer program language).

Physical Description:

1 online resource (114 p.)

Edition:

First edition.

Other Title:

At head of cover title: Indexed searching for Ruby applications

Place of Publication:

Beijing : O'Reilly, 2008.

Language Note:

English

System Details:

text file

Summary:

With the introduction of Ferret, Ruby users now have one of the fastest and most flexible search libraries available. And it's surprisingly easy to use. This book will show you how to quickly get up and running with Ferret. You'll learn how to index different document types such as PDF, Microsoft Word, and HTML, as well as how to deal with foreign languages and different character encodings. Ferret describes the Ferret Query Language in detail along with the object-oriented approach to building queries. You will also be introduced to sorting, filtering, and highligh

Contents:

Table of Contents; Preface; Conventions Used in This Book; Using Code Examples; Safari® Enabled; How to Contact Us; Chapter 1. Getting Started; Installing Ferret; A Quick Example: Indexing the Filesystem; Summary; Chapter 2. Indexing; Index Storage; Documents, Fields, and Boosts; Documents; Fields; Boosts; Setting Up the Index; FieldInfo; :store; :index; :term_vector; FieldInfos; Basic Indexing Operations; Add; Get; Delete; Update; Indexing Non-String Datatypes; Number Fields; Date Fields; Sort Fields; Summary; Chapter 3. Advanced Indexing; How the Indexing Process Works

Tuning Indexing PerformanceIn-Memory Indexing; Indexing Parameters; :max_buffer_memory and :chunk_size; :merge_factor; :max_buffered_docs; :max_merged_docs; :max_field_length; :use_compound_file; :index_skip_interval; :doc_skip_interval; Indexing parameter testing; Parallel Indexing; Optimizing the Index; Index Locking and Concurrency Issues; Multithreaded Environment; Multiprocess Environment; Summary; Chapter 4. Search; Overview of Searching Classes; IndexSearcher; Query; QueryParser; Filter; Sort; Building Queries; TermQuery; BooleanQuery; PhraseQuery; RangeQuery; MultiTermQuery

PrefixQueryWildcardQuery; FuzzyQuery; MatchAllQuery; ConstantScoreQuery; FilteredQuery; Span Queries; SpanTermQuery; SpanFirstQuery; SpanOrQuery; SpanNotQuery; SpanNearQuery; Boosting Queries; QueryParser; Setting Up the QueryParser; Ferret Query Language; TermQuery; BooleanQuery; PhraseQuery; RangeQuery; WildcardQuery; FuzzyQuery; Boosting a query in FQL; Filtering Search Results; Using the RangeFilter; Using the QueryFilter; Writing Your Own Filter; :filter_proc, the New Filter; Sorting Search Results; SortField; Sort; Sorting by Date; Highlighting Query Results; Summary

Chapter 5. AnalysisToken; TokenStream; Tokenizer; WhiteSpaceTokenizer; LetterTokenizer; StandardTokenizer; RegExpTokenizer; TokenFilter; LowerCaseFilter; StopFilter; StemFilter; HyphenFilter; Analyzer; StandardAnalyzer; PerFieldAnalyzer; Custom Analysis; Chapter 6. Ferret in Practice; Indexing Multiple Document Types; TextReader; HtmlReader; OOoReader (OpenOffice.org Reader); JpegReader; Mp3Reader; PdfReader; Other Indexing Improvements; Search Improvements; Putting It All Together; Summary; Index

Notes:

Includes index.

Description based on print version record.

ISBN:

9781306815222

1306815223

9780596522544

0596522541

9780596554712

0596554710

OCLC:

609841022