Class ParentNodeJoin

  • All Implemented Interfaces:

    public class ParentNodeJoin
    extends AbstractCondition
    ParentNodeJoin implements a parent node join condition.
    • Constructor Detail

      • ParentNodeJoin

        public ParentNodeJoin​(MultiColumnQueryHits child,
                              org.apache.lucene.index.IndexReader reader,
                              HierarchyResolver resolver,
                              ChildNodeJoinConditionImpl condition)
                       throws IOException
        Creates a new parent node join condition.
        child - the inner query hits.
        reader - the index reader.
        resolver - the hierarchy resolver.
        condition - the QOM child node join condition.
        IOException - if an error occurs while reading from the index.
    • Method Detail

      • getMatchingScoreNodes

        public ScoreNode[][] getMatchingScoreNodes​(ScoreNode parent)
                                            throws IOException
        Returns the matching inner score nodes for the given outer score node sn. The outer query hits loop contains the parent score nodes.
        parent - the current score nodes of the outer source.
        the matching score nodes in the inner source.
        IOException - if an error occurs while evaluating the condition.