Package org.apache.lucene.queryparser.flexible.core.nodes

Interface QueryNode

All Known Subinterfaces:
FieldableNode, FieldValuePairQueryNode<T>, RangeQueryNode<T>, ValueQueryNode<T>
All Known Implementing Classes:
AbstractRangeQueryNode, AndQueryNode, AnyQueryNode, BooleanModifierNode, BooleanQueryNode, BoostQueryNode, DeletedQueryNode, FieldQueryNode, FuzzyQueryNode, GroupQueryNode, IntervalQueryNode, MatchAllDocsQueryNode, MatchNoDocsQueryNode, MinShouldMatchNode, ModifierQueryNode, MultiPhraseQueryNode, NoTokenFoundQueryNode, OpaqueQueryNode, OrQueryNode, PathQueryNode, PhraseSlopQueryNode, PointQueryNode, PointRangeQueryNode, PrefixWildcardQueryNode, ProximityQueryNode, QueryNodeImpl, QuotedFieldQueryNode, RegexpQueryNode, SlopQueryNode, SynonymQueryNode, TermRangeQueryNode, TokenizedPhraseQueryNode, WildcardQueryNode
public interface QueryNode
A QueryNode is a interface implemented by all nodes on a QueryNode tree.

  • Method Details

    • toQueryString

      CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser)
      convert to a query string understood by the query parser

    • toString

      String toString()
      for printing
      Overrides:
      toString in class Object

    • getChildren

      List<QueryNode> getChildren()
      get Children nodes

    • isLeaf

      boolean isLeaf()
      verify if a node is a Leaf node

    • containsTag

      boolean containsTag(String tagName)
      verify if a node contains a tag

    • getTag

      Object getTag(String tagName)
      Returns object stored under that tag name

    • getParent

      QueryNode getParent()

    • cloneTree

      QueryNode cloneTree() throws CloneNotSupportedException
      Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method
      Returns:
      the cloned tree
      Throws:
      CloneNotSupportedException

    • add

      void add(QueryNode child)

    • add

      void add(List<QueryNode> children)

    • set

      void set(List<QueryNode> children)

    • setTag

      void setTag(String tagName, Object value)
      Associate the specified value with the specified tagName. If the tagName already exists, the old value is replaced. The tagName and value cannot be null. tagName will be converted to lowercase.

    • unsetTag

      void unsetTag(String tagName)
      Unset a tag. tagName will be converted to lowercase.

    • getTagMap

      Map<String,Object> getTagMap()
      Returns a map containing all tags attached to this query node.
      Returns:
      a map containing all tags attached to this query node

    • removeFromParent

      void removeFromParent()
      Removes this query node from its parent.

    • removeChildren

      void removeChildren(QueryNode childNode)
      Remove a child node
      Parameters:
      childNode - Which child to remove