BooleanQueryNode (Lucene 10.5.1 queryparser API)
Description: declaration: package: org.apache.lucene.queryparser.flexible.core.nodes, class: BooleanQueryNode

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

# Class BooleanQueryNode

java.lang.Object
org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
org.apache.lucene.queryparser.flexible.core.nodes.BooleanQueryNode

All Implemented Interfaces:
  `Cloneable`, `QueryNode`

Direct Known Subclasses:
  `AndQueryNode`, `OrQueryNode`, `ProximityQueryNode`, `SynonymQueryNode`

public class BooleanQueryNode extends QueryNodeImpl
A `BooleanQueryNode` represents a list of elements which do not have an explicit boolean operator defined between them. It can be used to express a boolean query that intends to use the default boolean operator.

- ## Field Summary

  ### Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl

  `PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `BooleanQueryNode(List<QueryNode> clauses)`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `QueryNode`
  `cloneTree()`
  Recursive clone the QueryNode tree.
  `CharSequence`
  `toQueryString(EscapeQuerySyntax escapeSyntaxParser)`
  convert to a query string understood by the query parser
  `String`
  `toString()`
  Every implementation of this class should return pseudo xml like this:

  ### Methods inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl

  `add, add, allocate, clone, containsTag, getChildren, getParent, getTag, getTagMap, isDefaultField, isLeaf, isRoot, removeChildren, removeFromParent, set, setLeaf, setTag, unsetTag`

  ### Methods inherited from class java.lang.Object

  `equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- ## Constructor Details

  - ### BooleanQueryNode

    public BooleanQueryNode(List<QueryNode> clauses)
    Parameters:
      `clauses` - - the query nodes to be and'ed

- ## Method Details

  - ### toString

    public String toString()
    Description copied from class: `QueryNodeImpl`
    Every implementation of this class should return pseudo xml like this:

    For FieldQueryNode: <field start='1' end='2' field='subject' text='foo'/>

    Specified by:
      `toString` in interface `QueryNode`
    Overrides:
      `toString` in class `QueryNodeImpl`
    See Also:
      - `QueryNode.toString()`

  - ### toQueryString

    public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser)
    Description copied from interface: `QueryNode`
    convert to a query string understood by the query parser

  - ### cloneTree

    public QueryNode cloneTree() throws CloneNotSupportedException
    Description copied from interface: `QueryNode`
    Recursive clone the QueryNode tree. The tags are not copied to the new tree when you call the cloneTree() method.
    Specified by:
      `cloneTree` in interface `QueryNode`
    Overrides:
      `cloneTree` in class `QueryNodeImpl`
    Returns:
      the cloned tree
    Throws:
      `CloneNotSupportedException`