Class GroupQueryNode

A GroupQueryNode represents a location where the original user typed real parenthesis on the query string. This class is useful for queries like: a) a AND b OR c b) ( a AND b) OR c

Parenthesis might be used to define the boolean operation precedence.

Inheritance
object
QueryNode
GroupQueryNode
Implements
Inherited Members
Namespace: Lucene.Net.QueryParsers.Flexible.Core.Nodes
Assembly: Lucene.Net.QueryParser.dll
Syntax
public class GroupQueryNode : QueryNode, IQueryNode

Constructors

GroupQueryNode(IQueryNode)

This IQueryNode is used to identify parenthesis on the original query string

Declaration
public GroupQueryNode(IQueryNode query)
Parameters
Type Name Description
IQueryNode query

Methods

CloneTree()

Recursive clone the IQueryNode tree. The tags are not copied to the new tree when you call the CloneTree() method.

Declaration
public override IQueryNode CloneTree()
Returns
Type Description
IQueryNode

the cloned tree
Overrides

GetChild()

A GroupQueryNode represents a location where the original user typed real parenthesis on the query string. This class is useful for queries like: a) a AND b OR c b) ( a AND b) OR c

Parenthesis might be used to define the boolean operation precedence.

Declaration
public virtual IQueryNode GetChild()
Returns
Type Description
IQueryNode

SetChild(IQueryNode)

A GroupQueryNode represents a location where the original user typed real parenthesis on the query string. This class is useful for queries like: a) a AND b OR c b) ( a AND b) OR c

Parenthesis might be used to define the boolean operation precedence.

Declaration
public virtual void SetChild(IQueryNode child)
Parameters
Type Name Description
IQueryNode child

ToQueryString(IEscapeQuerySyntax)

convert to a query string understood by the query parser

Declaration
public override string ToQueryString(IEscapeQuerySyntax escapeSyntaxParser)
Parameters
Type Name Description
IEscapeQuerySyntax escapeSyntaxParser
Returns
Type Description
string
Overrides

ToString()

Every implementation of this class should return pseudo xml like this:

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

Declaration
public override string ToString()
Returns
Type Description
string
Overrides
See Also

Implements