Class BooleanQuery2ModifierNodeProcessor

This processor is used to apply the correct ModifierQueryNode to BooleanQueryNodes children. This is a variant of BooleanModifiersQueryNodeProcessor which ignores precedence.

The 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 MOD_NONE, becomes a MOD_REQ. For default BooleanQueryNode, it checks the default operator is 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
object
BooleanQuery2ModifierNodeProcessor
Implements
Inherited Members
Namespace: Lucene.Net.QueryParsers.Flexible.Standard.Processors
Assembly: Lucene.Net.QueryParser.dll
Syntax
public class BooleanQuery2ModifierNodeProcessor : IQueryNodeProcessor

Constructors

BooleanQuery2ModifierNodeProcessor()

This processor is used to apply the correct ModifierQueryNode to BooleanQueryNodes children. This is a variant of BooleanModifiersQueryNodeProcessor which ignores precedence.

The 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 MOD_NONE, becomes a MOD_REQ. For default BooleanQueryNode, it checks the default operator is 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).
Declaration
public BooleanQuery2ModifierNodeProcessor()
See Also

Methods

FillChildrenBufferAndApplyModifiery(IQueryNode)

This processor is used to apply the correct ModifierQueryNode to BooleanQueryNodes children. This is a variant of BooleanModifiersQueryNodeProcessor which ignores precedence.

The 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 MOD_NONE, becomes a MOD_REQ. For default BooleanQueryNode, it checks the default operator is 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).
Declaration
protected virtual void FillChildrenBufferAndApplyModifiery(IQueryNode parent)
Parameters
Type Name Description
IQueryNode parent
See Also

GetQueryConfigHandler()

Returns the QueryConfigHandler associated to the query tree if any, otherwise it returns null

Declaration
public virtual QueryConfigHandler GetQueryConfigHandler()
Returns
Type Description
QueryConfigHandler

the QueryConfigHandler associated to the query tree if any, otherwise it returns null
See Also

IsDefaultBooleanQueryNode(IQueryNode)

This processor is used to apply the correct ModifierQueryNode to BooleanQueryNodes children. This is a variant of BooleanModifiersQueryNodeProcessor which ignores precedence.

The 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 MOD_NONE, becomes a MOD_REQ. For default BooleanQueryNode, it checks the default operator is 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).
Declaration
protected virtual bool IsDefaultBooleanQueryNode(IQueryNode toTest)
Parameters
Type Name Description
IQueryNode toTest
Returns
Type Description
bool
See Also

PostProcessNode(IQueryNode)

This processor is used to apply the correct ModifierQueryNode to BooleanQueryNodes children. This is a variant of BooleanModifiersQueryNodeProcessor which ignores precedence.

The 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 MOD_NONE, becomes a MOD_REQ. For default BooleanQueryNode, it checks the default operator is 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).
Declaration
protected virtual IQueryNode PostProcessNode(IQueryNode node)
Parameters
Type Name Description
IQueryNode node
Returns
Type Description
IQueryNode
See Also

PreProcessNode(IQueryNode)

This processor is used to apply the correct ModifierQueryNode to BooleanQueryNodes children. This is a variant of BooleanModifiersQueryNodeProcessor which ignores precedence.

The 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 MOD_NONE, becomes a MOD_REQ. For default BooleanQueryNode, it checks the default operator is 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).
Declaration
protected virtual IQueryNode PreProcessNode(IQueryNode node)
Parameters
Type Name Description
IQueryNode node
Returns
Type Description
IQueryNode
See Also

Process(IQueryNode)

Processes a query node tree. It may return the same or another query tree. I should never return null.

Declaration
public virtual IQueryNode Process(IQueryNode queryTree)
Parameters
Type Name Description
IQueryNode queryTree

tree root node
Returns
Type Description
IQueryNode

the processed query tree
See Also

ProcessChildren(IQueryNode)

This processor is used to apply the correct ModifierQueryNode to BooleanQueryNodes children. This is a variant of BooleanModifiersQueryNodeProcessor which ignores precedence.

The 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 MOD_NONE, becomes a MOD_REQ. For default BooleanQueryNode, it checks the default operator is 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).
Declaration
protected virtual void ProcessChildren(IQueryNode queryTree)
Parameters
Type Name Description
IQueryNode queryTree
See Also

SetQueryConfigHandler(QueryConfigHandler)

Sets the QueryConfigHandler associated to the query tree.

Declaration
public virtual void SetQueryConfigHandler(QueryConfigHandler queryConfigHandler)
Parameters
Type Name Description
QueryConfigHandler queryConfigHandler
See Also

TagModifierButDoNotOverride(IQueryNode, Modifier)

This processor is used to apply the correct ModifierQueryNode to BooleanQueryNodes children. This is a variant of BooleanModifiersQueryNodeProcessor which ignores precedence.

The 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 MOD_NONE, becomes a MOD_REQ. For default BooleanQueryNode, it checks the default operator is 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).
Declaration
protected virtual void TagModifierButDoNotOverride(IQueryNode node, Modifier mod)
Parameters
Type Name Description
IQueryNode node
Modifier mod
See Also

Implements

See Also