Language-specific queries

When you set up an index, you define its supported languages; see Architecture for a complete list of languages. When searching a defined language, you use the Client class and the Search extension method, and pass to the Search extension method an instance of the Language class.

Optimizely Search & Navigation also has a Language routing feature that lets you limit search queries to documents in a specified language.

Optimizely Search & Navigation exposes an instance for each supported language as a static property on the Language class.

client.Search<BlogPost>(Language.Swedish)
    .For("turtles")
    .InField(x => x.Title);

The language parameter only applies when specifying one or more fields to search. If you do not select fields, Optimizely Search & Navigation searches over the special _all field, which supports only a single analyzer. Likewise, it uses the standard analyzer when searching attachments (Word documents, PDFs, and so on).

Result of adding a language parameter: If you specify a language, the search uses stemming adapted for that language. In such a case, Optimizely Search & Navigation returns results in all languages and for stemmed words in the specified language. To limit results to a specific language, use a filter (for example, FilterForVisitor).