internal FullTextIndex(
IndexOptions indexOptions,
ConfiguredObjectTokenizationOptions <TKey> itemTokenizationOptions,
IIndexNodeFactory indexNodeFactory,
IQueryParser queryParser,
IIndexScorerFactory scorer,
ITextExtractor defaultTextExtractor,
ITokenizer defaultTokenizer,
Func <IIndexSnapshot <TKey>, Task>[]?indexModifiedActions)
{
this.indexNavigatorPool = new IndexNavigatorPool(scorer);
this.indexOptions = indexOptions;
this.itemTokenizationOptions = itemTokenizationOptions ?? throw new ArgumentNullException(nameof(itemTokenizationOptions));
this.IndexNodeFactory = indexNodeFactory ?? throw new ArgumentNullException(nameof(indexNodeFactory));
this.queryParser = queryParser ?? throw new ArgumentNullException(nameof(queryParser));
this.DefaultTextExtractor = defaultTextExtractor;
this.DefaultTokenizer = defaultTokenizer ?? throw new ArgumentNullException(nameof(defaultTokenizer));
this.indexModifiedActions = indexModifiedActions;
this.idPool = new IdPool <TKey>();
this.FieldLookup = new IndexedFieldLookup(
this.itemTokenizationOptions.GetAllConfiguredFields(),
defaultTextExtractor,
defaultTokenizer);
this.Root = this.IndexNodeFactory.CreateRootNode();
}
internal void Initialize(IndexNode node, IIndexNavigatorPool pool)
{
this.pool = pool;
this.currentNode = node;
this.intraNodeTextPosition = 0;
this.navigatedWith.Length = 0;
}
internal IndexSnapshot(IIndexNavigatorPool indexNavigatorPool, FullTextIndex <TKey> index)
{
this.Items = index.Items.Snapshot();
this.Root = index.Root;
this.indexNavigatorPool = indexNavigatorPool;
// Field lookup is read-only once the index is constructed
this.FieldLookup = index.FieldLookup;
}
