Class AggregationSpELExpression

java.lang.Object
org.springframework.data.mongodb.core.aggregation.AggregationSpELExpression
All Implemented Interfaces:
AggregationExpression, MongoExpression
public class AggregationSpELExpression extends Object implements AggregationExpression
An AggregationExpression that renders a MongoDB Aggregation Framework expression from the AST of a SpEL expression.

Samples: 

// { $and: [ { $gt: [ "$qty", 100 ] }, { $lt: [ "$qty", 250 ] } ] }
expressionOf("qty > 100 invalid input: '&'invalid input: '&' qty invalid input: '<' 250);

// { $cond : { if : { $gte : [ "$a", 42 ]}, then : "answer", else : "no-answer" } }
expressionOf("cond(a >= 42, 'answer', 'no-answer')");
Since:
1.10
Author:
Christoph Strobl, Mark Paluch
See Also:
  • SpelExpressionTransformer