Class OverlaySingleDocTermsLeafReader

All Implemented Interfaces:
Closeable, AutoCloseable

public class OverlaySingleDocTermsLeafReader extends FilterLeafReader
Overlays a 2nd LeafReader for the terms of one field, otherwise the primary reader is consulted. The 2nd reader is assumed to have one document of 0 and we remap it to a target doc ID.
  • Field Details

    • in2

      private final LeafReader in2
    • in2Field

      private final String in2Field
    • in2TargetDocId

      private final int in2TargetDocId
  • Constructor Details

    • OverlaySingleDocTermsLeafReader

      public OverlaySingleDocTermsLeafReader(LeafReader in, LeafReader in2, String in2Field, int in2TargetDocId)
  • Method Details

    • terms

      public Terms terms(String field) throws IOException
      Description copied from class: LeafReader
      Returns the Terms index for this field, or null if it has none.
      Overrides:
      terms in class FilterLeafReader
      Throws:
      IOException
    • getCoreCacheHelper

      public IndexReader.CacheHelper getCoreCacheHelper()
      Description copied from class: LeafReader
      Optional method: Return a IndexReader.CacheHelper that can be used to cache based on the content of this leaf regardless of deletions. Two readers that have the same data but different sets of deleted documents or doc values updates may be considered equal. Consider using IndexReader.getReaderCacheHelper() if you need deletions or dv updates to be taken into account.

      A return value of null indicates that this reader is not suited for caching, which is typically the case for short-lived wrappers that alter the content of the wrapped leaf reader.

      Specified by:
      getCoreCacheHelper in class LeafReader
    • getReaderCacheHelper

      public IndexReader.CacheHelper getReaderCacheHelper()
      Description copied from class: IndexReader
      Optional method: Return a IndexReader.CacheHelper that can be used to cache based on the content of this reader. Two readers that have different data or different sets of deleted documents will be considered different.

      A return value of null indicates that this reader is not suited for caching, which is typically the case for short-lived wrappers that alter the content of the wrapped reader.

      Specified by:
      getReaderCacheHelper in class IndexReader