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Lucene 4 Cookbook
Edwood Ng, Vineeth Mohan
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eBook - ePub
Lucene 4 Cookbook
Edwood Ng, Vineeth Mohan
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Información
Lucene 4 Cookbook
Table of Contents
Lucene 4 Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
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Preface
What this book covers
What you need for this book
Who this book is for
Sections
Getting ready
How to do it…
How it works…
There's more…
See also
Conventions
Reader feedback
Customer support
Downloading the example code
Errata
Piracy
Questions
1. Introducing Lucene
Introduction
How Lucene works
Why is Lucene so popular?
Some Lucene implementations
Installing Lucene
How to do it...
How it works…
Setting up a simple Java Lucene project
Getting ready
How to do it...
How it works...
Obtaining an IndexWriter
How to do it…
How it works…
Creating an analyzer
Getting ready
How to do it...
How it works…
Creating fields
How to do it...
How It Works
Creating and writing documents to an index
How to do it...
How it works…
Deleting documents
How to do it...
How it works…
Obtaining an IndexSearcher
How to do it...
How it works…
Creating queries with the Lucene QueryParser
How to do it...
How it works…
Performing a search
How to do it...
How it works…
Enumerating results
How to do it...
How it works…
2. Analyzing Your Text
Introduction
Obtaining a common analyzer
Getting ready
How to do it...
How it works...
There's more…
Obtaining a TokenStream
Getting ready
How to do it...
How it works…
Obtaining TokenAttribute values
Getting ready
How to do it…
How it works…
Using PositionIncrementAttribute
Getting ready
How to do it...
How it works…
Using PerFieldAnalyzerWrapper
Getting ready
How to do it…
How it works…
Defining custom TokenFilters
How to do it…
How it works…
Defining custom analyzers
How to do it…
How it works…
Defining custom tokenizers
How to do it…
How it works…
Defining custom attributes
How to do it…
How it works…
3. Indexing Your Data
Introduction
Obtaining an IndexWriter
How to do it...
How it works...
Creating a StringField
How to do it...
How it works...
Creating a TextField
How to do it...
How it works...
Creating a numeric field
How to do it...
How it works...
Creating a DocValue Field
How to do it...
How it works...
Transactional commits and index versioning
How to do it...
How it works...
Reusing field and document objects per thread
How to do It...
How it works...
Delving into field norms
How to do it...
How it works...
Changing similarity implementation used during indexing
Getting ready
How to do it…
4. Searching Your Indexes
Introduction
Obtaining IndexReaders
How to do it...
How it works...
Un-inverting single-valued fields in memory with FieldCache
How to do it...
How it works...
TermVectors
How to do it...
How it works...
IndexSearcher
How to do it...
How it works...
Constructing queries
How to do it...
How it works...
Specifying sort logic
How to do it...
How it works...
Forming a search result
How to do it...
How it works...
Pagination
How to do it...
How it works...
Using Collectors
How to do it...
How it works...
Sorting with custom FieldComparator
How to do it...
How it works...
5. Near Real-time Searching
Introduction
Using the DirectoryReader to open index in Near Real-Time
How to do it...
How it works...
Using the SearcherManager to refresh IndexSearcher
How to do it...
How it works...
Generational indexing with TrackingIndexWriter
How to do it…
How it works...
Maintaining search sessions with SearcherLifetimeManager
How to do it…
How it works…
Performance tuning: latency and throughput
How to do it…
How it works…
6. Querying and Filtering Data
Introduction
Performing advanced filtering
How to do it...
How it works…
Creating a custom filter
How to do it...
Searching with QueryParser
How to do it..
Wildcard search
Term range search
Autogenerated phrase query
Date resolution
Default operator
Enable position increments
Fuzzy query
Lowercase expanded term
Phrase slop
TermQuery and TermRangeQuery
How to do it..
BooleanQuery
How to do it..
How it works…
PrefixQuery and WildcardQuery
How to do it...
How it works…
PhraseQuery and MultiPhraseQuery
How to do it...
How it works…
FuzzyQuery
How to do it...
How it works…
NumericRangeQuery
How to do it…
How it works…
DisjunctionMaxQuery
How to do it…
How it works…
RegexpQuery
How to do it…
SpanQuery
How to do it...
How it works…
CustomScoreQuery
How to do it…
How it works…
7. Flexible Scoring
Introduction
Overriding similarity
How to do it…
How it works…
There's more…
The BM25 model
The language model
The divergence from randomness model
The information-based Model
Implementing the BM25 model
How to do It…
How it works…
Implementing the language model
How to do it…
Implementing the divergence from randomness model
How to do It…
How it works…
Implementing the information-based model
How to do It…
How it works…
8. Introducing Elasticsearch
Introduction
Getting Elasticsearch
Getting ready
How to do it...
How it works...
There's more…
Creating a new index
How to do it…
How it works…
Predefine field mappings
How to do it...
How it works....
Adding a document
How to do it...
How it works...
Deleting a document
How to do it…
How it works…
Updating a document
How to do it…
How it works…
Performing bulk indexing
How to do it…
How it works…
Searching the index
How to do it...
How it works...
There's more…
Scaling Elasticsearch
How to do it…
How it works…
There's more…
9. Extending Lucene with Modules
Introduction
Exploring spatial search
Getting ready…
How to do it…
How it works…
There's more…
Implementing joins
Getting ready…
How to do it…
Performing faceting
Getting ready…
How to do it…
How it works…
Implementing grouping
Getting ready…
How to do it…
Employing autosuggest
Getting ready…
How to do it…
Implementing highlighting
Getting ready…
How to do it…
How it works…
Index
Lucene 4 Cookbook
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