public class ObjectOperators extends Object
Modifier and Type | Class and Description |
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static class |
ObjectOperators.MergeObjects
AggregationExpression for $mergeObjects that combines multiple documents into a single document. |
static class |
ObjectOperators.ObjectOperatorFactory |
static class |
ObjectOperators.ObjectToArray
AggregationExpression for $objectToArray that converts a document to an array of documents that each contains two fields k and v. |
Constructor and Description |
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ObjectOperators() |
Modifier and Type | Method and Description |
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static ObjectOperators.ObjectOperatorFactory |
valueOf(AggregationExpression expression)
Take the value provided by the given
AggregationExpression . |
static ObjectOperators.ObjectOperatorFactory |
valueOf(String fieldReference)
Take the value referenced by given fieldReference.
|
public static ObjectOperators.ObjectOperatorFactory valueOf(String fieldReference)
fieldReference
- must not be null.ObjectOperators.ObjectOperatorFactory
.public static ObjectOperators.ObjectOperatorFactory valueOf(AggregationExpression expression)
AggregationExpression
.expression
- must not be null.ObjectOperators.ObjectOperatorFactory
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