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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RemoveChildren(IQueryNode)

Remove a child node.

Declaration

void RemoveChildren(IQueryNode childNode)

Parameters

Type	Name	Description
IQueryNode	childNode	Which child to remove.

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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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TryGetTag(String, out Object)

Gets the tag associated with the specified tagName.

Declaration

bool TryGetTag(string tagName, out object tag)

Parameters

Type	Name	Description
System.String	tagName
System.Object	tag

Returns

Type	Description
System.Boolean

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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