java.lang.Object org.apache.lucene.search.function.ValueSource org.apache.lucene.search.function.FieldCacheSource
All Implemented Interfaces:
Fields used herein must be indexed (doesn't matter if these fields are stored or not).
It is assumed that each such indexed field is untokenized, or at least has a single token in a document. For documents with multiple tokens of the same field, behavior is undefined (It is likely that current code would use the value of one of these tokens, but this is not guaranteed).
Document with no tokens in this field are assigned the
WARNING: The status of the search.function package is experimental. The APIs introduced here might change in the future and will not be supported anymore in such a case.
NOTE: with the switch in 2.9 to segment-based searching, if #getValues is invoked with a composite (multi-segment) reader, this can easily cause double RAM usage for the values in the FieldCache. It's best to switch your application to pass only atomic (single segment) readers to this API.
|Method from org.apache.lucene.search.function.FieldCacheSource Summary:|
|cachedFieldSourceEquals, cachedFieldSourceHashCode, description, equals, getCachedFieldValues, getValues, hashCode|
|Methods from org.apache.lucene.search.function.ValueSource:|
|description, equals, getValues, hashCode, toString|
|Methods from java.lang.Object:|
|clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait|
|Method from org.apache.lucene.search.function.FieldCacheSource Detail:|
abstract public boolean cachedFieldSourceEquals(FieldCacheSource other)
abstract public int cachedFieldSourceHashCode()
public String description()
abstract public DocValues getCachedFieldValues(FieldCache cache, String field, IndexReader reader) throws IOException
public final DocValues getValues(IndexReader reader) throws IOException
public final int hashCode()