Class WildcardQueryNodeProcessor
The StandardSyntaxParser creates PrefixWildcardQueryNode nodes which have values containing the prefixed wildcard. However, Lucene Lucene.Net.Search.PrefixQuery cannot contain the prefixed wildcard. So, this processor basically removed the prefixed wildcard from the PrefixWildcardQueryNode value.
Implements
Inherited Members
Namespace: Lucene.Net.QueryParsers.Flexible.Standard.Processors
Assembly: Lucene.Net.QueryParser.dll
Syntax
public class WildcardQueryNodeProcessor : QueryNodeProcessor, IQueryNodeProcessorConstructors
WildcardQueryNodeProcessor()
The StandardSyntaxParser creates PrefixWildcardQueryNode nodes which have values containing the prefixed wildcard. However, Lucene Lucene.Net.Search.PrefixQuery cannot contain the prefixed wildcard. So, this processor basically removed the prefixed wildcard from the PrefixWildcardQueryNode value.
Declaration
public WildcardQueryNodeProcessor()See Also
Methods
PostProcessNode(IQueryNode)
This method is invoked for every node when walking up the tree.
Declaration
protected override IQueryNode PostProcessNode(IQueryNode node)Parameters
| Type | Name | Description |
|---|---|---|
| IQueryNode | node | node the query node to be post-processed |
Returns
| Type | Description |
|---|---|
| IQueryNode | a query node |
Overrides
Exceptions
| Type | Condition |
|---|---|
| QueryNodeException | if something goes wrong during the query node processing |
See Also
PreProcessNode(IQueryNode)
This method is invoked for every node when walking down the tree.
Declaration
protected override IQueryNode PreProcessNode(IQueryNode node)Parameters
| Type | Name | Description |
|---|---|---|
| IQueryNode | node | the query node to be pre-processed |
Returns
| Type | Description |
|---|---|
| IQueryNode | a query node |
Overrides
Exceptions
| Type | Condition |
|---|---|
| QueryNodeException | if something goes wrong during the query node processing |
See Also
SetChildrenOrder(IList<IQueryNode>)
This method is invoked for every node that has at least on child. It's invoked right before PostProcessNode(IQueryNode) is invoked.
Declaration
protected override IList<IQueryNode> SetChildrenOrder(IList<IQueryNode> children)Parameters
| Type | Name | Description |
|---|---|---|
| IList<IQueryNode> | children | the list containing all current node's children |
Returns
| Type | Description |
|---|---|
| IList<IQueryNode> | a new list containing all children that should be set to the current node |
Overrides
Exceptions
| Type | Condition |
|---|---|
| QueryNodeException | if something goes wrong during the query node processing |