DocumentValue (container-search 7.376.25 API)

java.lang.Object
- com.yahoo.search.grouping.request.GroupingNode
- - com.yahoo.search.grouping.request.GroupingExpression
  - - com.yahoo.search.grouping.request.DocumentValue

Direct Known Subclasses:

ArrayAtLookup, AttributeFunction, AttributeValue, DocIdNsSpecificValue, InterpolatedLookup, RelevanceValue, SummaryValue
```
public abstract class DocumentValue
extends GroupingExpression
```
This class represents a document value in a GroupingExpression. As such, the subclasses of this can only be used as document-level expressions (i.e. level 0, see GroupingExpression.resolveLevel(int)).

Author:

Simon Thoresen Hult

- Constructor Summary
  
  Constructors
  Modifier Constructor Description
  
  protected DocumentValue(java.lang.String image, java.lang.String label, java.lang.Integer level)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  void resolveLevel(int level)
  Resolves the conceptual level of this expression.
  - Methods inherited from class com.yahoo.search.grouping.request.GroupingExpression
    asImage, asString, copy, getLevel, getLevelOrNull, setLabel, visit
  - Methods inherited from class com.yahoo.search.grouping.request.GroupingNode
    getImage, getLabel, toString
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DocumentValue
```
protected DocumentValue(java.lang.String image,
                        java.lang.String label,
                        java.lang.Integer level)
```
- Method Detail
  - resolveLevel
```
public void resolveLevel(int level)
```
    Description copied from class: GroupingExpression
    
    Resolves the conceptual level of this expression. This level represents the type of data that is consumed by this expression, where level 0 is a single hit, level 1 is a group, level 2 is a list of groups, and so forth. This method verifies the input level against the expression type, and recursively resolves the level of all argument expressions.
    
    Overrides:
    
    resolveLevel in class GroupingExpression
    
    Parameters:
    
    level - The level of the input data.