Adding JMCR-Stable version

[Benchmarks_CSolver.git] / JMCR-Stable / real-world application / derby-10.3.2.1 / java / engine / org / apache / derby / impl / store / access / btree / BTreeRowPosition.java

diff --git a/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/impl/store/access/btree/BTreeRowPosition.java b/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/impl/store/access/btree/BTreeRowPosition.java
new file mode 100644 (file)
index 0000000..e0db8ce
--- /dev/null
+++ b/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/impl/store/access/btree/BTreeRowPosition.java
@@ -0,0 +1,113 @@
+/*\r
+\r
+   Derby - Class org.apache.derby.impl.store.access.btree.BTreeRowPosition\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.store.access.btree;\r
+\r
+\r
+import org.apache.derby.iapi.services.sanity.SanityManager;\r
+\r
+import org.apache.derby.iapi.store.raw.Page;\r
+\r
+import org.apache.derby.iapi.store.access.RowUtil;\r
+\r
+import org.apache.derby.iapi.types.DataValueDescriptor;\r
+\r
+import org.apache.derby.iapi.types.RowLocation;\r
+\r
+import org.apache.derby.impl.store.access.conglomerate.RowPosition;\r
+\r
+/**\r
+\r
+**/\r
+\r
+public class BTreeRowPosition extends RowPosition\r
+{\r
+    /**************************************************************************\r
+     * Fields of the class\r
+     **************************************************************************\r
+     */\r
+    public    DataValueDescriptor[] current_positionKey;\r
+    public    long                  current_scan_pageno;\r
+    public    LeafControlRow        current_leaf;\r
+    protected LeafControlRow        next_leaf;\r
+    public    DataValueDescriptor[] current_lock_template;\r
+    public    RowLocation           current_lock_row_loc;\r
+\r
+    /**************************************************************************\r
+     * Constructors for This class:\r
+     **************************************************************************\r
+     */\r
+    public BTreeRowPosition()\r
+    {\r
+        super();\r
+    }\r
+\r
+    /**************************************************************************\r
+     * Private/Protected methods of This class:\r
+     **************************************************************************\r
+     */\r
+\r
+    /**************************************************************************\r
+     * Public Methods of This class:\r
+     **************************************************************************\r
+     */\r
+    public void init()\r
+    {\r
+        super.init();\r
+\r
+        current_leaf        = null;\r
+        current_positionKey = null;\r
+    }\r
+\r
+    public final void unlatch()\r
+    {\r
+        if (current_leaf != null)\r
+        {\r
+            current_leaf.release();\r
+            current_leaf = null;\r
+        }\r
+        current_slot = Page.INVALID_SLOT_NUMBER;\r
+    }\r
+\r
+    public final String toString()\r
+    {\r
+        String ret_string = null;\r
+\r
+        if (SanityManager.DEBUG)\r
+        {\r
+            ret_string = \r
+                super.toString() + \r
+                "current_positionKey = " + current_positionKey + \r
+                ";key = " + RowUtil.toString(current_positionKey) + \r
+                ";current_scan_pageno" + current_scan_pageno + \r
+                ";next_leaf" + next_leaf + \r
+                ";current_leaf" + current_leaf;\r
+        }\r
+\r
+        return(ret_string);\r
+    }\r
+\r
+\r
+    /**************************************************************************\r
+     * Public Methods of XXXX class:\r
+     **************************************************************************\r
+     */\r
+}\r