DistinctResultTransformer (hibernate-core JavaDocs)

java.lang.Object
- org.hibernate.transform.BasicTransformerAdapter
- - org.hibernate.transform.DistinctResultTransformer

All Implemented Interfaces:

java.io.Serializable, ResultTransformer
```
public class DistinctResultTransformer
extends BasicTransformerAdapter
```
Distinctions the result tuples in the final result based on the defined equality of the tuples.
Since this transformer is stateless, all instances would be considered equal. So for optimization purposes we limit it to a single, singleton instance.

See Also:

Serialized Form

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static DistinctResultTransformer INSTANCE
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  java.util.List transformList(java.util.List list)
  Uniquely distinct each tuple row here.
  - Methods inherited from class org.hibernate.transform.BasicTransformerAdapter
    transformTuple
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - INSTANCE
```
public static final DistinctResultTransformer INSTANCE
```
- Method Detail
  - transformList
```
public java.util.List transformList(java.util.List list)
```
    Uniquely distinct each tuple row here.
    
    Specified by:
    
    transformList in interface ResultTransformer
    
    Overrides:
    
    transformList in class BasicTransformerAdapter
    
    Parameters:
    
    list - The result.
    
    Returns:
    
    The transformed result.