Class AddFields
- java.lang.Object
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- dev.morphia.aggregation.experimental.stages.Stage
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- dev.morphia.aggregation.experimental.stages.AddFields
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public class AddFields extends Stage
Adds new fields to documents. $addFields outputs documents that contain all existing fields from the input documents and newly added fields.The $addFields stage is equivalent to a $project stage that explicitly specifies all existing fields in the input documents and adds the new fields.
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Constructor Summary
Constructors Modifier Constructor Description protected
AddFields()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description AddFields
field(String name, Expression value)
Add a field to the stageDocumentExpression
getDocument()
static AddFields
of()
Creates a new AddFields stage to bind field-
Methods inherited from class dev.morphia.aggregation.experimental.stages.Stage
getStageName
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Method Detail
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of
public static AddFields of()
Creates a new AddFields stage to bind field- Returns:
- the new stage
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field
public AddFields field(String name, Expression value)
Add a field to the stage- Parameters:
name
- the name of the new fieldvalue
- the value expression- Returns:
- this
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getDocument
public DocumentExpression getDocument()
- Returns:
- the fields
Developer note.This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.
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