org.springframework.data.mongodb.core.mapreduce
Class GroupBy
java.lang.Object
org.springframework.data.mongodb.core.mapreduce.GroupBy
public class GroupBy
- extends Object
Collects the parameters required to perform a group operation on a collection. The query condition and the input
collection are specified on the group method as method arguments to be consistent with other operations, e.g.
map-reduce.
- Author:
- Mark Pollack
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
GroupBy
public GroupBy(String... keys)
GroupBy
public GroupBy(String key,
boolean isKeyFunction)
keyFunction
public static GroupBy keyFunction(String key)
key
public static GroupBy key(String... keys)
initialDocument
public GroupBy initialDocument(String initialDocument)
initialDocument
public GroupBy initialDocument(DBObject initialDocument)
reduceFunction
public GroupBy reduceFunction(String reduceFunction)
finalizeFunction
public GroupBy finalizeFunction(String finalizeFunction)
getGroupByObject
public DBObject getGroupByObject()
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