Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "but not the Elasticsearch term in the document field"

A block of code is set as follows:

public class CustomRestActionPlugin extends Plugin implements ActionPlugin {  
  @Override
     public List<Class<? extends RestHandler>> getRestHandlers() {
           return Collections.singletonList(CustomRestAction.class);
     } 
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

curl -XGET 'localhost:9200/clients/_search?pretty' -d '{
 "query" : {
  "prefix" : {
   "name" : {
    "prefix" : "j",
    "rewrite" : "constant_score_boolean"
   }
  }
 }
}'

Any command-line input or output is written as follows:

curl -XPUT 'localhost:9200/mastering_meta/_settings' -d '{
 "index" : {
  "auto_expand_replicas" : "0-all"
 }
}

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "field and hit the Create button"