C# Class Lucene.Net.QueryParsers.Flexible.Standard.Processors.BooleanQuery2ModifierNodeProcessor

This processor is used to apply the correct ModifierQueryNode to BooleanQueryNodes children. This is a variant of Precedence.Processors.BooleanModifiersQueryNodeProcessor which ignores precedence. The Parser.StandardSyntaxParser knows the rules of precedence, but lucene does not. e.g. (A AND B OR C AND D) ist treated like (+A +B +C +D). This processor walks through the query node tree looking for BooleanQueryNodes. If an AndQueryNode is found, every child, which is not a ModifierQueryNode or the ModifierQueryNode is Modifier.MOD_NONE, becomes a Modifier.MOD_REQ. For default BooleanQueryNode, it checks the default operator is Operator.AND, if it is, the same operation when an AndQueryNode is found is applied to it. Each BooleanQueryNode which direct parent is also a BooleanQueryNode is removed (to ignore the rules of precedence).

Inheritance: IQueryNodeProcessor

ファイルを表示 Open project: apache/lucenenet

Public Methods

Method	Description
BooleanQuery2ModifierNodeProcessor ( ) : Lucene.Net.QueryParsers.Flexible.Core.Config
GetQueryConfigHandler ( ) : QueryConfigHandler
Process ( IQueryNode queryTree ) : IQueryNode
SetQueryConfigHandler ( QueryConfigHandler queryConfigHandler ) : void

Protected Methods

Method	Description
FillChildrenBufferAndApplyModifiery ( IQueryNode parent ) : void
IsDefaultBooleanQueryNode ( IQueryNode toTest ) : bool
PostProcessNode ( IQueryNode node ) : IQueryNode
PreProcessNode ( IQueryNode node ) : IQueryNode
ProcessChildren ( IQueryNode queryTree ) : void
TagModifierButDoNotOverride ( IQueryNode node, Modifier mod ) : void

Private Methods

Method	Description
ApplyModifier ( IQueryNode node, Modifier mod ) : IQueryNode
ProcessIteration ( IQueryNode queryTree ) : IQueryNode

Method Details

BooleanQuery2ModifierNodeProcessor() public method

public BooleanQuery2ModifierNodeProcessor ( ) : Lucene.Net.QueryParsers.Flexible.Core.Config
return	Lucene.Net.QueryParsers.Flexible.Core.Config

FillChildrenBufferAndApplyModifiery() protected method

protected FillChildrenBufferAndApplyModifiery ( IQueryNode parent ) : void
parent	IQueryNode
return	void

GetQueryConfigHandler() public method

public GetQueryConfigHandler ( ) : QueryConfigHandler
return	Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler

IsDefaultBooleanQueryNode() protected method

protected IsDefaultBooleanQueryNode ( IQueryNode toTest ) : bool
toTest	IQueryNode
return	bool

PostProcessNode() protected method

protected PostProcessNode ( IQueryNode node ) : IQueryNode
node	IQueryNode
return	IQueryNode

PreProcessNode() protected method

protected PreProcessNode ( IQueryNode node ) : IQueryNode
node	IQueryNode
return	IQueryNode

Process() public method

public Process ( IQueryNode queryTree ) : IQueryNode
queryTree	IQueryNode
return	IQueryNode

ProcessChildren() protected method

protected ProcessChildren ( IQueryNode queryTree ) : void
queryTree	IQueryNode
return	void

SetQueryConfigHandler() public method

public SetQueryConfigHandler ( QueryConfigHandler queryConfigHandler ) : void
queryConfigHandler	Lucene.Net.QueryParsers.Flexible.Core.Config.QueryConfigHandler
return	void

TagModifierButDoNotOverride() protected method

protected TagModifierButDoNotOverride ( IQueryNode node, Modifier mod ) : void
node	IQueryNode
mod	Modifier
return	void