Elasticsearch: Constructing mappings for Java Client - elasticsearch

Question

In my elasticsearch.yml file am trying to implement some mapping where one field belonging to one type is indexed using a different analyzer to the rest.
At present the yaml file has the following structure:
index:
bookshelf:
types:
book:
mappings:
title: {analyzer: customAnalyzer}
analysis:
analyzer:
# set standard analyzer with no stop words as the default
default:
type: standard
stopwords: _none_
# set custom analyser to provide relative search results
customAnalyzer:
type: custom
tokenizer: nGramTokenizer
filter: [lowercase,stopWordsFilter,asciifolding]
tokenizer:
nGramTokenizer:
type: nGram
min_gram: 1
max_gram: 2
filter:
nGramFilter:
type: nGram
min_gram: 1
max_gram: 2
stopWordsFilter:
type: stop
stopwords: _none_
This does not apply the custom analyzer to the title field, so I was hoping someone may be able to point me in the right direction for applying custom analyzers to individual fields?

Answer 1

I answered this in the ml:
If you are using Java you don't have to use an yml file. You can, but you don't have to.
If you are using Spring, you can have a look at the ES spring factory project:  https://github.com/dadoonet/spring-elasticsearch
If not, there is different ways of creating index and mappings in Java:
You can have a look here to see how I'm doing this by reading a json
mapping file: 
https://github.com/dadoonet/spring-elasticsearch/blob/master/src/main/java/fr/pilato/spring/elasticsearch/ElasticsearchAbstractClientFactoryBean.java#L616
You can also use XContent objects provided by ES to build your
mappings in Java: 
https://github.com/dadoonet/rssriver/blob/master/src/test/java/org/elasticsearch/river/rss/RssRiverTest.java#L14
Using this object is described here:  https://github.com/dadoonet/rssriver/blob/master/src/test/java/org/elasticsearch/river/rss/AbstractRssRiverTest.java#L98
Adding the mapping as follows:
node .client() .admin () .indices()
.preparePutMapping ("yourindex" )
.setType ( "yourtype" )
.setSource ( mapping ())
.execute() .actionGet ();
I hope this could help you