3 <title>Expert: attributes streaming definition for indexing facets</title>
6 <h1>Expert: attributes streaming definition for indexing facets</h1>
8 Steaming of facets attributes is a low level indexing interface with Lucene indexing.
9 There are two types of category related streams:
11 <li><b>Category tokenizer stream</b> handles tokenization for a single category,
12 e.g. for creating drill-down tokens.</li>
13 <li><b>Category list tokenizer stream</b> handles tokenization for multiple categories,
14 e.g. for creating a counting list token, representing all the categories of
15 a certain document.</li>