## Uses of Class
org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessorImpl

Packages that use QueryNodeProcessorImpl
org.apache.lucene.queryparser.flexible.core.processors: Interfaces and implementations used by query node processors
org.apache.lucene.queryparser.flexible.precedence.processors: Processors used by Precedence Query Parser
org.apache.lucene.queryparser.flexible.standard.processors: Lucene Query Node Processors.

### Uses of QueryNodeProcessorImpl in org.apache.lucene.queryparser.flexible.core.processors

Subclasses of QueryNodeProcessorImpl in org.apache.lucene.queryparser.flexible.core.processors
`class` `NoChildOptimizationQueryNodeProcessor` A `NoChildOptimizationQueryNodeProcessor` removes every BooleanQueryNode, BoostQueryNode, TokenizedPhraseQueryNode or ModifierQueryNode that do not have a valid children.
`class` `RemoveDeletedQueryNodesProcessor` A `QueryNodeProcessorPipeline` class removes every instance of `DeletedQueryNode` from a query node tree.

### Uses of QueryNodeProcessorImpl in org.apache.lucene.queryparser.flexible.precedence.processors

Subclasses of QueryNodeProcessorImpl in org.apache.lucene.queryparser.flexible.precedence.processors
`class` `BooleanModifiersQueryNodeProcessor` This processor is used to apply the correct `ModifierQueryNode` to `BooleanQueryNode`s children.

### Uses of QueryNodeProcessorImpl in org.apache.lucene.queryparser.flexible.standard.processors

Subclasses of QueryNodeProcessorImpl in org.apache.lucene.queryparser.flexible.standard.processors
`class` `AllowLeadingWildcardProcessor` This processor verifies if `StandardQueryConfigHandler.ConfigurationKeys.ALLOW_LEADING_WILDCARD` is defined in the `QueryConfigHandler`.
`class` `AnalyzerQueryNodeProcessor` This processor verifies if `StandardQueryConfigHandler.ConfigurationKeys.ANALYZER` is defined in the `QueryConfigHandler`.
`class` `BooleanSingleChildOptimizationQueryNodeProcessor` This processor removes every `BooleanQueryNode` that contains only one child and returns this child.
`class` `BoostQueryNodeProcessor` This processor iterates the query node tree looking for every `FieldableNode` that has `StandardQueryConfigHandler.ConfigurationKeys.BOOST` in its config.
`class` `DefaultPhraseSlopQueryNodeProcessor` This processor verifies if `StandardQueryConfigHandler.ConfigurationKeys.PHRASE_SLOP` is defined in the `QueryConfigHandler`.
`class` `FuzzyQueryNodeProcessor` This processor iterates the query node tree looking for every `FuzzyQueryNode`, when this kind of node is found, it checks on the query configuration for `StandardQueryConfigHandler.ConfigurationKeys.FUZZY_CONFIG`, gets the fuzzy prefix length and default similarity from it and set to the fuzzy node.
`class` `MatchAllDocsQueryNodeProcessor` This processor converts every `WildcardQueryNode` that is "*:*" to `MatchAllDocsQueryNode`.
`class` `MultiFieldQueryNodeProcessor` This processor is used to expand terms so the query looks for the same term in different fields.
`class` `MultiTermRewriteMethodProcessor` This processor instates the default `MultiTermQuery.RewriteMethod`, `MultiTermQuery.CONSTANT_SCORE_REWRITE`, for multi-term query nodes.
`class` `OpenRangeQueryNodeProcessor` Processes `TermRangeQuery`s with open ranges.
`class` `PhraseSlopQueryNodeProcessor` This processor removes invalid `SlopQueryNode` objects in the query node tree.
`class` `PointQueryNodeProcessor` This processor is used to convert `FieldQueryNode`s to `PointRangeQueryNode`s.
`class` `PointRangeQueryNodeProcessor` This processor is used to convert `TermRangeQueryNode`s to `PointRangeQueryNode`s.
`class` `RegexpQueryNodeProcessor` Processor for Regexp queries.
`class` `RemoveEmptyNonLeafQueryNodeProcessor` This processor removes every `QueryNode` that is not a leaf and has not children.
`class` `TermRangeQueryNodeProcessor` This processors process `TermRangeQueryNode`s.
`class` `WildcardQueryNodeProcessor` The `StandardSyntaxParser` creates `PrefixWildcardQueryNode` nodes which have values containing the prefixed wildcard.