Interface IQueryNode

A IQueryNode is a interface implemented by all nodes on a IQueryNode tree.

Namespace: Lucene.Net.QueryParsers.Flexible.Core.Nodes
Assembly: Lucene.Net.QueryParser.dll
Syntax
public interface IQueryNode

Properties

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IsLeaf

verify if a node is a Leaf node

Declaration
bool IsLeaf { get; }
Property Value
Type Description
System.Boolean
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Parent

Declaration
IQueryNode Parent { get; }
Property Value
Type Description
IQueryNode
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TagMap

Gets a map containing all tags attached to this query node.

Declaration
IDictionary<string, object> TagMap { get; }
Property Value
Type Description
System.Collections.Generic.IDictionary<System.String, System.Object>

Methods

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Add(IQueryNode)

add a new child to a non Leaf node

Declaration
void Add(IQueryNode child)
Parameters
Type Name Description
IQueryNode child
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Add(IList<IQueryNode>)

Declaration
void Add(IList<IQueryNode> children)
Parameters
Type Name Description
System.Collections.Generic.IList<IQueryNode> children
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CloneTree()

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

Declaration
IQueryNode CloneTree()
Returns
Type Description
IQueryNode

the cloned tree
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ContainsTag(String)

verify if a node contains a tag

Declaration
bool ContainsTag(string tagName)
Parameters
Type Name Description
System.String tagName
Returns
Type Description
System.Boolean
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GetChildren()

get Children nodes

Declaration
IList<IQueryNode> GetChildren()
Returns
Type Description
System.Collections.Generic.IList<IQueryNode>
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GetTag(String)

Returns object stored under that tag name

Declaration
object GetTag(string tagName)
Parameters
Type Name Description
System.String tagName
Returns
Type Description
System.Object
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RemoveFromParent()

Removes this query node from its parent.

Declaration
void RemoveFromParent()
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Set(IList<IQueryNode>)

reset the children of a node

Declaration
void Set(IList<IQueryNode> children)
Parameters
Type Name Description
System.Collections.Generic.IList<IQueryNode> children
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SetTag(String, Object)

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.

Declaration
void SetTag(string tagName, object value)
Parameters
Type Name Description
System.String tagName
System.Object value
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ToQueryString(IEscapeQuerySyntax)

convert to a query string understood by the query parser

Declaration
string ToQueryString(IEscapeQuerySyntax escapeSyntaxParser)
Parameters
Type Name Description
IEscapeQuerySyntax escapeSyntaxParser
Returns
Type Description
System.String
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ToString()

for printing

Declaration
string ToString()
Returns
Type Description
System.String
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UnsetTag(String)

Unset a tag. tagName will be converted to lowercase.

Declaration
void UnsetTag(string tagName)
Parameters
Type Name Description
System.String tagName