Doubt ExampleMatcher MongoRepository usage. WithIncludeNullValues-CodePudding

Entity: ` code `, ` tags `... Many columns such as
The code data for 1, 100; Code is 1, tags... Such as empty data have 10
Roughly as follows

 

ExampleMatcher ExampleMatcher=ExampleMatcher. MatchingAll (.) withIncludeNullValues (); 
The Entity, the Entity=Entity. The builder (). Code (" 1 "). The build (); 
Example Example=example of (entity, exampleMatcher); 
List All=entityRepository. The.findall (example); 
System. The out. Println (all size ());//print 100, want to query is 10

want to query code is 1, tags... Such as empty data (a total of 10)
However the query results for the code of 1 100
Save the children.