Constructor Detail

• CachingWrapperFilterHelper

  public CachingWrapperFilterHelper​(Filter filter)

  Parameters:

  filter - Filter to cache results of

Method Detail

• setShouldHaveCache

  public void setShouldHaveCache​(boolean shouldHaveCache)

• getDocIdSet

  public DocIdSet getDocIdSet​(IndexReader reader)
                       throws IOException

  Description copied from class: Filter
  Creates a DocIdSet enumerating the documents that should be permitted in search results. NOTE: null can be returned if no documents are accepted by this Filter.

  Note: This method will be called once per segment in the index during searching. The returned DocIdSet must refer to document IDs for that segment, not for the top-level reader.

  Overrides:

  getDocIdSet in class CachingWrapperFilter

  Parameters:

  reader - a IndexReader instance opened on the index currently searched on. Note, it is likely that the provided reader does not represent the whole underlying index i.e. if the index has more than one segment the given reader only represents a single segment.

  Returns:

  a DocIdSet that provides the documents which should be permitted or prohibited in search results. NOTE: null can be returned if no documents will be accepted by this Filter.

  Throws:

  IOException

  See Also:

  DocIdBitSet

• toString

  public String toString()

  Overrides:

  toString in class CachingWrapperFilter

• equals

  public boolean equals​(Object o)

  Overrides:

  equals in class CachingWrapperFilter

• hashCode

  public int hashCode()

  Overrides:

  hashCode in class CachingWrapperFilter