Package com.yahoo.prelude.fastsearch

Class VespaBackend

java.lang.Object
com.yahoo.prelude.fastsearch.VespaBackend
Direct Known Subclasses:
IndexedBackend, StreamingBackend
public abstract class VespaBackend extends Object
Superclass for backend searchers.
Author:
baldersheim

  • Field Details

    • SORTABLE_ATTRIBUTES_SUMMARY_CLASS

      public static final String SORTABLE_ATTRIBUTES_SUMMARY_CLASS
      for vespa-internal use only; consider renaming the summary class
      See Also:

  • Constructor Details

    • VespaBackend

      protected VespaBackend(ClusterParams clusterParams)

  • Method Details

    • iterableHits

      protected static Iterable<Hit> iterableHits(Result result)
      Iterate over all hits below this result

    • getName

      public final String getName()

    • getDefaultDocsumClass

      protected final String getDefaultDocsumClass()

    • doSearch2

      protected abstract Result doSearch2(String schema, Query query)
      Searches a search cluster This is an endpoint - searchers will never propagate the search to any nested searcher.
      Parameters:
      query - the query to search

    • doPartialFill

      protected abstract void doPartialFill(Result result, String summaryClass)

    • summaryNeedsQuery

      public boolean summaryNeedsQuery(Query query)
      Returns whether we need to send the query when fetching summaries. This is necessary if the query requests summary features or dynamic snippeting.

    • getServerId

      public String getServerId()

    • getDocumentDatabase

      public DocumentDatabase getDocumentDatabase(Query query)

    • transformQuery

      protected void transformQuery(Query query)

    • search

      public Result search(String schema, Query query)

    • fill

      public void fill(Result result, String summaryClass)

    • ensureLegalSummaryClass

      protected String ensureLegalSummaryClass(Query query, String summaryClass)

    • shutDown

      public void shutDown()