queryparser/org.gnit.lucenekmp.queryparser.flexible.standard.processors/RemoveEmptyNonLeafQueryNodeProcessor

RemoveEmptyNonLeafQueryNodeProcessor

class RemoveEmptyNonLeafQueryNodeProcessor : QueryNodeProcessorImpl

This processor removes every QueryNode that is not a leaf and has not children. If after processing the entire tree the root node is not a leaf and has no children, a MatchNoDocsQueryNode object is returned.
This processor is used at the end of a pipeline to avoid invalid query node tree structures like a GroupQueryNode or ModifierQueryNode with no children.

Constructors

constructor()

Properties

queryConfigHandler

override var queryConfigHandler: QueryConfigHandler?

Sets and returns the QueryConfigHandler associated to the query tree.

Functions

process

open override fun process(queryTree: QueryNode): QueryNode

Processes a query node tree. It may return the same or another query tree. I should never return null.

RemoveEmptyNonLeafQueryNodeProcessor

See also

Constructors

Properties

Functions