Adding JMCR-Stable version

[Benchmarks_CSolver.git] / JMCR-Stable / real-world application / derby-10.3.2.1 / java / engine / org / apache / derby / impl / sql / execute / DistinctGroupedAggregateResultSet.java

diff --git a/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/impl/sql/execute/DistinctGroupedAggregateResultSet.java b/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/impl/sql/execute/DistinctGroupedAggregateResultSet.java
new file mode 100644 (file)
index 0000000..0abd286
--- /dev/null
+++ b/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/impl/sql/execute/DistinctGroupedAggregateResultSet.java
@@ -0,0 +1,101 @@
+/*\r
+\r
+   Derby - Class org.apache.derby.impl.sql.execute.DistinctGroupedAggregateResultSet\r
+\r
+   Licensed to the Apache Software Foundation (ASF) under one or more\r
+   contributor license agreements.  See the NOTICE file distributed with\r
+   this work for additional information regarding copyright ownership.\r
+   The ASF licenses this file to you under the Apache License, Version 2.0\r
+   (the "License"); you may not use this file except in compliance with\r
+   the License.  You may obtain a copy of the License at\r
+\r
+      http://www.apache.org/licenses/LICENSE-2.0\r
+\r
+   Unless required by applicable law or agreed to in writing, software\r
+   distributed under the License is distributed on an "AS IS" BASIS,\r
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+   See the License for the specific language governing permissions and\r
+   limitations under the License.\r
+\r
+ */\r
+\r
+package org.apache.derby.impl.sql.execute;\r
+\r
+import org.apache.derby.iapi.error.StandardException;\r
+import org.apache.derby.iapi.services.loader.GeneratedMethod;\r
+import org.apache.derby.iapi.sql.Activation;\r
+import org.apache.derby.iapi.sql.execute.NoPutResultSet;\r
+\r
+/**\r
+ * This ResultSet evaluates grouped aggregates when there is 1 or more distinct aggregate.\r
+ * It will scan the entire source result set and calculate\r
+ * the grouped aggregates when scanning the source during the \r
+ * first call to next().\r
+ *\r
+ * RESOLVE - This subclass is essentially empty.  Someday we will need to write \r
+ * additional code for distinct grouped aggregates, especially when we support\r
+ * multiple distinct aggregates.\r
+ *\r
+ */\r
+class DistinctGroupedAggregateResultSet extends GroupedAggregateResultSet\r
+{\r
+\r
+    /**\r
+        * Constructor\r
+        *\r
+        * @param       s                       input result set\r
+        * @param       isInSortedOrder true if the source results are in sorted order\r
+        * @param       aggregateItem   indicates the number of the\r
+        *              SavedObject off of the PreparedStatement that holds the\r
+        *              AggregatorInfoList used by this routine.  \r
+        * @param       orderingItem    indicates the number of the\r
+        *              SavedObject off of the PreparedStatement that holds the\r
+        *              ColumOrdering array used by this routine\r
+        * @param       a                               activation\r
+        * @param       ra                              generated method to build an empty\r
+        *              output row \r
+        * @param       maxRowSize              approx row size, passed to sorter\r
+        * @param       resultSetNumber The resultSetNumber for this result set\r
+        *\r
+        * @exception StandardException Thrown on error\r
+        */\r
+    DistinctGroupedAggregateResultSet(NoPutResultSet s,\r
+                                       boolean isInSortedOrder,\r
+                                       int     aggregateItem,\r
+                                       int     orderingItem,\r
+                                       Activation a,\r
+                                       GeneratedMethod ra,\r
+                                       int maxRowSize,\r
+                                       int resultSetNumber,\r
+                                   double optimizerEstimatedRowCount,\r
+                                   double optimizerEstimatedCost) throws StandardException \r
+       {\r
+               super(s, isInSortedOrder, aggregateItem, orderingItem,\r
+                         a, ra, maxRowSize, resultSetNumber, optimizerEstimatedRowCount, optimizerEstimatedCost);\r
+    }\r
+\r
+\r
+       ///////////////////////////////////////////////////////////////////////////////\r
+       //\r
+       // ResultSet interface (leftover from NoPutResultSet)\r
+       //\r
+       ///////////////////////////////////////////////////////////////////////////////\r
+\r
+       ///////////////////////////////////////////////////////////////////////////////\r
+       //\r
+       // CursorResultSet interface\r
+       //\r
+       ///////////////////////////////////////////////////////////////////////////////\r
+\r
+       ///////////////////////////////////////////////////////////////////////////////\r
+       //\r
+       // SCAN ABSTRACTION UTILITIES\r
+       //\r
+       ///////////////////////////////////////////////////////////////////////////////\r
+\r
+       ///////////////////////////////////////////////////////////////////////////////\r
+       //\r
+       // AGGREGATION UTILITIES\r
+       //\r
+       ///////////////////////////////////////////////////////////////////////////////\r
+}\r