Adding JMCR-Stable version

[Benchmarks_CSolver.git] / JMCR-Stable / real-world application / derby-10.3.2.1 / java / engine / org / apache / derby / iapi / services / classfile / MemberTable.java

diff --git a/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/iapi/services/classfile/MemberTable.java b/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/iapi/services/classfile/MemberTable.java
new file mode 100644 (file)
index 0000000..fc39c79
--- /dev/null
+++ b/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/iapi/services/classfile/MemberTable.java
@@ -0,0 +1,155 @@
+/*\r
+\r
+   Derby - Class org.apache.derby.iapi.services.classfile.MemberTable\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.iapi.services.classfile;\r
+\r
+import java.io.IOException;\r
+\r
+import java.util.Hashtable;\r
+import java.util.Vector;\r
+\r
+\r
+\r
+class MemberTable {\r
+       protected Vector entries;\r
+       private Hashtable hashtable;\r
+       private MemberTableHash mutableMTH = null;\r
+\r
+       public MemberTable(int count) {\r
+               entries = new Vector(count);\r
+               hashtable = new Hashtable((count > 50) ? count : 50);\r
+               mutableMTH = new MemberTableHash(null, null);\r
+       }\r
+\r
+       void addEntry(ClassMember item) {\r
+               MemberTableHash mth= new MemberTableHash(\r
+                                                                       item.getName(), \r
+                                                                       item.getDescriptor(),\r
+                                                                       entries.size());\r
+               /* Add to the Vector */\r
+               entries.addElement(item);\r
+\r
+               /* Add to the Hashtable */\r
+               hashtable.put(mth, mth);\r
+       }\r
+\r
+       ClassMember find(String name, String descriptor) {\r
+\r
+               /* Set up the mutable MTH for the search */\r
+               mutableMTH.name = name;\r
+               mutableMTH.descriptor = descriptor;\r
+               mutableMTH.setHashCode();\r
+\r
+               /* search the hash table */\r
+               MemberTableHash mth = (MemberTableHash) hashtable.get(mutableMTH);\r
+               if (mth == null)\r
+               {\r
+                       return null;\r
+               }\r
+\r
+               return (ClassMember) entries.elementAt(mth.index);\r
+       }\r
+\r
+       void put(ClassFormatOutput out) throws IOException {\r
+\r
+               Vector lentries = entries;\r
+               int count = lentries.size();\r
+               for (int i = 0; i < count; i++) {\r
+                       ((ClassMember) lentries.elementAt(i)).put(out);\r
+               }\r
+       }\r
+\r
+       int size() {\r
+               return entries.size();\r
+       }\r
+\r
+       int classFileSize() {\r
+               int size = 0;\r
+\r
+               Vector lentries = entries;\r
+               int count = lentries.size();\r
+               for (int i = 0; i < count; i++) {\r
+                       size += ((ClassMember) lentries.elementAt(i)).classFileSize();\r
+               }\r
+\r
+               return size;\r
+       }\r
+}\r
+\r
+class MemberTableHash \r
+{\r
+       String name;\r
+       String descriptor;\r
+       int        index;\r
+       int        hashCode;\r
+       \r
+       MemberTableHash(String name, String descriptor, int index)\r
+       {\r
+               this.name = name;\r
+               this.descriptor = descriptor;\r
+               this.index = index;\r
+               /* Only set hashCode if both name and descriptor are non-null */\r
+               if (name != null && descriptor != null)\r
+               {\r
+                       setHashCode();\r
+               }\r
+       }\r
+\r
+       MemberTableHash(String name, String descriptor)\r
+       {\r
+               this(name, descriptor, -1);\r
+       }\r
+\r
+       void setHashCode()\r
+       {\r
+               hashCode = name.hashCode() + descriptor.hashCode();\r
+       }\r
+\r
+       public boolean equals(Object other)\r
+       {\r
+               MemberTableHash mth = (MemberTableHash) other;\r
+\r
+               if (other == null)\r
+               {\r
+                       return false;\r
+               }\r
+\r
+               if (name.equals(mth.name) && descriptor.equals(mth.descriptor))\r
+               {\r
+                       return true;\r
+               }\r
+               else\r
+               {\r
+                       return false;\r
+               }\r
+       }\r
+\r
+       public int hashCode()\r
+       {\r
+               return hashCode;\r
+       }\r
+}\r
+\r
+\r
+\r
+\r
+\r
+\r