Specify the key selector function for the left side of the key based operation.
Specify the key selector function for the left side of the key based operation. This returns
a HalfUnfinishedKeyPairOperation on which equalTo
must be called to specify the
key for the right side. The result after specifying the right side key is the finished
operation.
Specify the key fields for the left side of the key based operation.
Specify the key fields for the left side of the key based operation. This returns
a HalfUnfinishedKeyPairOperation on which equalTo
must be called to specify the
key for the right side. The result after specifying the right side key is the finished
operation.
Specify the key fields for the left side of the key based operation.
Specify the key fields for the left side of the key based operation. This returns
a HalfUnfinishedKeyPairOperation on which equalTo
must be called to specify the
key for the right side. The result after specifying the right side key is the finished
operation.
This only works on Tuple DataSet.
An unfinished outer join operation that results from calling, e.g. DataSet.fullOuterJoin(). The keys for the left and right side must be specified using first
where
and thenequalTo
.Note that a join function must always be specified explicitly when construction an outer join operator.
For example:
The type of the left input of the join.
The type of the right input of the join.