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体验新版 GitCode,发现更多精彩内容 >>
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c3a38aec
编写于
5月 15, 2014
作者:
F
Fabian Hueske
浏览文件
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电子邮件补丁
差异文件
Minor changes for SortedGrouping
上级
698bcc6f
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
10 addition
and
28 deletion
+10
-28
stratosphere-java/src/main/java/eu/stratosphere/api/java/operators/Grouping.java
...ain/java/eu/stratosphere/api/java/operators/Grouping.java
+1
-23
stratosphere-java/src/main/java/eu/stratosphere/api/java/operators/SortedGrouping.java
...va/eu/stratosphere/api/java/operators/SortedGrouping.java
+9
-5
未找到文件。
stratosphere-java/src/main/java/eu/stratosphere/api/java/operators/Grouping.java
浏览文件 @
c3a38aec
...
...
@@ -137,29 +137,7 @@ public class Grouping<T> {
* @see Order
*/
public
SortedGrouping
<
T
>
sortGroup
(
int
field
,
Order
order
)
{
int
pos
;
int
[]
groupSortKeyPositions
;
Order
[]
groupSortOrders
;
if
(!
dataSet
.
getType
().
isTupleType
())
{
throw
new
InvalidProgramException
(
"Specifying order keys via field positions is only valid for tuple data types"
);
}
if
(
field
>=
dataSet
.
getType
().
getArity
())
{
throw
new
IllegalArgumentException
(
"Order key out of tuple bounds."
);
}
groupSortKeyPositions
=
new
int
[
1
];
groupSortOrders
=
new
Order
[
1
];
pos
=
0
;
groupSortKeyPositions
[
pos
]
=
field
;
groupSortOrders
[
pos
]
=
order
;
return
new
SortedGrouping
<
T
>(
this
.
dataSet
,
this
.
keys
,
groupSortKeyPositions
,
groupSortOrders
);
return
new
SortedGrouping
<
T
>(
this
.
dataSet
,
this
.
keys
,
field
,
order
);
}
// public <K extends Comparable<K>> Grouping<T> sortGroup(KeySelector<T, K> keyExtractor, Order order) {
// throw new UnsupportedOperationException("Group sorting not supported for KeyExtractor functions.");
// }
}
stratosphere-java/src/main/java/eu/stratosphere/api/java/operators/SortedGrouping.java
浏览文件 @
c3a38aec
...
...
@@ -35,15 +35,19 @@ public class SortedGrouping<T> extends Grouping<T> {
private
int
[]
groupSortKeyPositions
;
private
Order
[]
groupSortOrders
;
public
SortedGrouping
(
DataSet
<
T
>
set
,
Keys
<
T
>
keys
,
int
[]
groupSortKeyPositions
,
Order
[]
groupSortOrders
)
{
public
SortedGrouping
(
DataSet
<
T
>
set
,
Keys
<
T
>
keys
,
int
field
,
Order
order
)
{
super
(
set
,
keys
);
if
(
groupSortKeyPositions
==
null
||
groupSortKeyPositions
.
length
==
0
||
groupSortOrders
==
null
||
groupSortOrders
.
length
==
0
)
{
throw
new
InvalidProgramException
(
"Key positions and sort orders must be specified in order to create a SortedGrouping."
);
if
(!
dataSet
.
getType
().
isTupleType
())
{
throw
new
InvalidProgramException
(
"Specifying order keys via field positions is only valid for tuple data types"
);
}
if
(
field
>=
dataSet
.
getType
().
getArity
())
{
throw
new
IllegalArgumentException
(
"Order key out of tuple bounds."
);
}
this
.
groupSortKeyPositions
=
groupSortKeyPositions
;
this
.
groupSortOrders
=
groupSortOrders
;
this
.
groupSortKeyPositions
=
new
int
[]{
field
};
this
.
groupSortOrders
=
new
Order
[]{
order
};
}
protected
int
[]
getGroupSortKeyPositions
()
{
...
...
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