group
command has been removed in MongoDB Server 4.2.0.@Deprecated public class GroupBy extends Object
Constructor and Description |
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GroupBy(String... keys)
Deprecated.
|
GroupBy(String key,
boolean isKeyFunction)
Deprecated.
|
Modifier and Type | Method and Description |
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GroupBy |
collation(Collation collation)
Deprecated.
Define the Collation specifying language-specific rules for string comparison.
|
GroupBy |
finalizeFunction(String finalizeFunction)
Deprecated.
Define the function that runs each item in the result set before db.collection.group() returns the final value.
|
org.bson.Document |
getGroupByObject()
Deprecated.
Get the
Document representation of the GroupBy . |
GroupBy |
initialDocument(org.bson.Document initialDocument)
Deprecated.
Define the aggregation result document.
|
GroupBy |
initialDocument(String initialDocument)
Deprecated.
Define the aggregation result document.
|
static GroupBy |
key(String... keys)
Deprecated.
Create new
GroupBy with the fields to group. |
static GroupBy |
keyFunction(String key)
Deprecated.
Create new
GroupBy with the field to group. |
GroupBy |
reduceFunction(String reduceFunction)
Deprecated.
Define the aggregation function that operates on the documents during the grouping operation
|
public GroupBy(String... keys)
public static GroupBy keyFunction(String key)
GroupBy
with the field to group.key
- public static GroupBy key(String... keys)
GroupBy
with the fields to group.keys
- public GroupBy initialDocument(@Nullable String initialDocument)
initialDocument
- can be null.public GroupBy initialDocument(@Nullable org.bson.Document initialDocument)
initialDocument
- can be null.public GroupBy reduceFunction(String reduceFunction)
reduceFunction
- public GroupBy finalizeFunction(@Nullable String finalizeFunction)
finalizeFunction
- public GroupBy collation(@Nullable Collation collation)
collation
- can be null.public org.bson.Document getGroupByObject()
Document
representation of the GroupBy
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