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DATAMONGO-2310 - Update documentation for TypedAggregation.

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Christoph Strobl
2019-09-05 13:02:01 +02:00
parent a45c9040c4
commit 37211fc6d7
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src/main/asciidoc/reference/mongodb.adoc
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@@ -2060,6 +2060,12 @@ An `Aggregation` represents a MongoDB `aggregate` operation and holds the descri
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The actual aggregate operation is executed by the `aggregate` method of the `MongoTemplate`, which takes the desired output class as a parameter.
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* `TypedAggregation`
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A `TypedAggregation`, just like an `Aggregation`, holds the instructions of the aggregation pipeline and a reference to the input type, that is used for mapping domain properties to actual document fields.
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On execution field references get checked against the given input type considering potential `@Field` annotations and raising errors when referencing non existing properties.
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* `AggregationOperation`
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An `AggregationOperation` represents a MongoDB aggregation pipeline operation and describes the processing that should be performed in this aggregation step. Although you could manually create an `AggregationOperation`, we recommend using the static factory methods provided by the `Aggregate` class to construct an `AggregateOperation`.