Class OverlaySingleDocTermsLeafReader

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.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 Detail

      • in2Field

        private final java.lang.String in2Field
      • in2TargetDocId

        private final int in2TargetDocId
    • Constructor Detail

      • OverlaySingleDocTermsLeafReader

        public OverlaySingleDocTermsLeafReader​(LeafReader in,
                                               LeafReader in2,
                                               java.lang.String in2Field,
                                               int in2TargetDocId)
    • Method Detail

      • terms

        public Terms terms​(java.lang.String field)
                    throws java.io.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:
        java.io.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