java.lang.Object
- org.apache.lucene.queryParser.core.processors.QueryNodeProcessorImpl
- - org.apache.lucene.queryParser.standard.processors.NumericQueryNodeProcessor

All Implemented Interfaces:

QueryNodeProcessor
```
public class NumericQueryNodeProcessor
extends QueryNodeProcessorImpl
```
This processor is used to convert FieldQueryNodes to NumericRangeQueryNodes. It looks for StandardQueryConfigHandler.ConfigurationKeys.NUMERIC_CONFIG set in the FieldConfig of every FieldQueryNode found. If StandardQueryConfigHandler.ConfigurationKeys.NUMERIC_CONFIG is found, it considers that FieldQueryNode to be a numeric query and convert it to NumericRangeQueryNode with upper and lower inclusive and lower and upper equals to the value represented by the FieldQueryNode converted to Number. It means that field:1 is converted to field:[1 TO 1].

Note that ParametricQueryNodes are ignored, even being a FieldQueryNode.

See Also:

StandardQueryConfigHandler.ConfigurationKeys.NUMERIC_CONFIG, FieldQueryNode, NumericConfig, NumericQueryNode

Constructor Summary

Constructors
Constructor Description

NumericQueryNodeProcessor()
Constructs a NumericQueryNodeProcessor object.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected QueryNode`	`postProcessNode(QueryNode node)`	This method is invoked for every node when walking up the tree.
`protected QueryNode`	`preProcessNode(QueryNode node)`	This method is invoked for every node when walking down the tree.
`protected List<QueryNode>`	`setChildrenOrder(List<QueryNode> children)`	This method is invoked for every node that has at least on child.

Methods inherited from class org.apache.lucene.queryParser.core.processors.QueryNodeProcessorImpl
getQueryConfigHandler, process, processChildren, setQueryConfigHandler

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - NumericQueryNodeProcessor
```
public NumericQueryNodeProcessor()
```
    Constructs a NumericQueryNodeProcessor object.
- Method Detail
  - postProcessNode
```
protected QueryNode postProcessNode(QueryNode node)
                             throws QueryNodeException
```
    Description copied from class: QueryNodeProcessorImpl
    
    This method is invoked for every node when walking up the tree.
    
    Specified by:
    
    postProcessNode in class QueryNodeProcessorImpl
    
    Parameters:
    
    node - node the query node to be post-processed
    
    Returns:
    
    a query node
    
    Throws:
    
    QueryNodeException - if something goes wrong during the query node processing
  - preProcessNode
```
protected QueryNode preProcessNode(QueryNode node)
                            throws QueryNodeException
```
    Description copied from class: QueryNodeProcessorImpl
    
    This method is invoked for every node when walking down the tree.
    
    Specified by:
    
    preProcessNode in class QueryNodeProcessorImpl
    
    Parameters:
    
    node - the query node to be pre-processed
    
    Returns:
    
    a query node
    
    Throws:
    
    QueryNodeException - if something goes wrong during the query node processing
  - setChildrenOrder
```
protected List<QueryNode> setChildrenOrder(List<QueryNode> children)
                                    throws QueryNodeException
```
    Description copied from class: QueryNodeProcessorImpl
    
    This method is invoked for every node that has at least on child. It's invoked right before QueryNodeProcessorImpl.postProcessNode(QueryNode) is invoked.
    
    Specified by:
    
    setChildrenOrder in class QueryNodeProcessorImpl
    
    Parameters:
    
    children - the list containing all current node's children
    
    Returns:
    
    a new list containing all children that should be set to the current node
    
    Throws:
    
    QueryNodeException - if something goes wrong during the query node processing

Class NumericQueryNodeProcessor

Constructor Summary

Method Summary

Methods inherited from class org.apache.lucene.queryParser.core.processors.QueryNodeProcessorImpl

Methods inherited from class java.lang.Object

Constructor Detail

NumericQueryNodeProcessor

Method Detail

postProcessNode

preProcessNode

setChildrenOrder