--no commit message

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h2/src/main/org/h2/constraint/Constraint.java

@@ -54,4 +54,8 @@ public abstract class Constraint extends SchemaObject {
         return table;
     }
     
+    public String getDropSQL() {
+        return null;
+    }
+
 }

h2/src/main/org/h2/engine/Comment.java

@@ -57,6 +57,10 @@ public class Comment extends DbObject {
         }
     }
     
+    public String getDropSQL() {
+        return null;
+    }
+
     public String getCreateSQL() {
         StringBuffer buff = new StringBuffer();
         buff.append("COMMENT ON ");

h2/src/main/org/h2/engine/Constants.java

@@ -27,7 +27,7 @@ package org.h2.engine;
  *   ant codeswitch_jdk14
  *   
  * - Change FAQ (next release planned, known bugs)
- * - Check version, change build number in Constants.java and build.xml
+ * - Check version, change build number in Constants.java and ant-build.properties
  * - Check code coverage
  * - No "  Message.getInternalError" (must be "throw Message.getInternalError")
  * - No TODO in the docs
@@ -66,8 +66,8 @@ package org.h2.engine;
  */
 public class Constants {
 
-    public static final int BUILD_ID = 44;
-    private static final String BUILD = "2007-03-04";
+    public static final int BUILD_ID = 45;
+    private static final String BUILD = "2007-03-20";
     public static final int VERSION_MAJOR = 1;
     public static final int VERSION_MINOR = 0;
 
@@ -106,6 +106,7 @@ public class Constants {
 
     public static final int DEFAULT_CACHE_SIZE_LINEAR_INDEX = 1 << 8;
 
+    public static final String SUFFIX_DB_FILE = ".db";
     public static final String SUFFIX_DATA_FILE = ".data.db";
     public static final String SUFFIX_LOG_FILE = ".log.db";
     public static final String SUFFIX_INDEX_FILE = ".index.db";

h2/src/main/org/h2/engine/Database.java

@@ -45,6 +45,7 @@ import org.h2.tools.DeleteDbFiles;
 import org.h2.util.BitField;
 import org.h2.util.ByteUtils;
 import org.h2.util.CacheLRU;
+import org.h2.util.ClassUtils;
 import org.h2.util.FileUtils;
 import org.h2.util.IOUtils;
 import org.h2.util.MemoryFile;
@@ -291,16 +292,10 @@ public class Database implements DataHandler {
     }
 
     public FileStore openFile(String name, boolean mustExist) throws SQLException {
-        return openFile(name, false, mustExist);
-    }
-
-    public FileStore openFile(String name, boolean notEncrypted, boolean mustExist) throws SQLException {
-        String c = notEncrypted ? null : cipher;
-        byte[] h = notEncrypted ? null : filePasswordHash;
         if(mustExist && !FileUtils.exists(name)) {
             throw Message.getSQLException(Message.FILE_CORRUPTED_1, name);
         }
-        FileStore store = FileStore.open(this, name, getMagic(), c, h);
+        FileStore store = FileStore.open(this, name, getMagic(), cipher, filePasswordHash);
         try {
             store.init();
         } catch(SQLException e) {
@@ -417,6 +412,9 @@ public class Database implements DataHandler {
             } else {
                 traceSystem = new TraceSystem(databaseName+Constants.SUFFIX_TRACE_FILE);
             }
+            if(cipher != null) {
+                traceSystem.setManualEnabling(false);
+            }
             traceSystem.setLevelFile(traceLevelFile);
             traceSystem.setLevelSystemOut(traceLevelSystemOut);
             traceSystem.getTrace(Trace.DATABASE).info("opening " + databaseName + " (build "+Constants.BUILD_ID+")");
@@ -1007,7 +1005,8 @@ public class Database implements DataHandler {
 
     public String createTempFile() throws SQLException {
         try {
-            return FileUtils.createTempFile(databaseName, Constants.SUFFIX_TEMP_FILE, true);
+            boolean inTempDir = readOnly;
+            return FileUtils.createTempFile(databaseName, Constants.SUFFIX_TEMP_FILE, true, inTempDir);
         } catch (IOException e) {
             throw Message.convert(e);
         }
@@ -1220,7 +1219,7 @@ public class Database implements DataHandler {
     }
     
     public Class loadClass(String className) throws ClassNotFoundException {
-        return Class.forName(className);
+        return ClassUtils.loadClass(className);
     }
 
     public void setEventListener(String className) throws SQLException {

h2/src/main/org/h2/engine/DbObject.java

@@ -108,6 +108,8 @@ public abstract class DbObject {
 
     public abstract String getCreateSQLForCopy(Table table, String quotedName);
     public abstract String getCreateSQL();
+    public abstract String getDropSQL();
+    
     public abstract int getType();
     public abstract void removeChildrenAndResources(Session session) throws SQLException;
     public abstract void checkRename() throws SQLException;

h2/src/main/org/h2/engine/FunctionAlias.java

@@ -105,6 +105,10 @@ public class FunctionAlias extends DbObject {
         throw Message.getInternalError();
     }
 
+    public String getDropSQL() {
+        return "DROP ALIAS IF EXISTS " + getSQL();
+    }
+    
     public String getCreateSQL() {
         StringBuffer buff = new StringBuffer();
         buff.append("CREATE ALIAS ");

h2/src/main/org/h2/engine/Right.java

@@ -69,6 +69,10 @@ public class Right extends DbObject {
         return grantee;
     } 
     
+    public String getDropSQL() {
+        return null;
+    }
+    
     public String getCreateSQLForCopy(Table table, String quotedName) {
         StringBuffer buff = new StringBuffer();
         buff.append("GRANT ");

h2/src/main/org/h2/engine/Role.java

@@ -24,6 +24,10 @@ public class Role extends RightOwner {
         throw Message.getInternalError();
     }
     
+    public String getDropSQL() {
+        return null;
+    }
+    
     public String getCreateSQL() {
         if(system) {
             return null;

h2/src/main/org/h2/engine/Session.java

@@ -26,7 +26,6 @@ import org.h2.store.LogSystem;
 import org.h2.store.UndoLog;
 import org.h2.store.UndoLogRecord;
 import org.h2.table.Table;
-import org.h2.table.TableData;
 import org.h2.util.ObjectArray;
 import org.h2.value.Value;
 import org.h2.value.ValueLong;
@@ -88,8 +87,8 @@ public class Session implements SessionInterface {
         }
     }
 
-    public void addLocalTempTable(TableData table) throws SQLException {
-        cleanTempTables();
+    public void addLocalTempTable(Table table) throws SQLException {
+        cleanTempTables(false);
         if(localTempTables == null) {
             localTempTables = new HashMap();
         }
@@ -195,7 +194,8 @@ public class Session implements SessionInterface {
         }
         if(undoLog.size() > 0) {
             undoLog.clear();
-            cleanTempTables();
+            // do not clean the temp tables if the last command was a create/drop
+            cleanTempTables(false);
         }
         if(unlinkSet != null && unlinkSet.size() > 0) {
             // need to flush the log file, because we can't unlink lobs if the commit record is not written
@@ -219,7 +219,7 @@ public class Session implements SessionInterface {
         if(locks.size() > 0 || needCommit) {
             logSystem.commit(this);
         }
-        cleanTempTables();
+        cleanTempTables(false);
         unlockAll();
     }
 
@@ -252,6 +252,7 @@ public class Session implements SessionInterface {
     public void close() throws SQLException {
         if(database != null) {
             try {
+                cleanTempTables(true);
                 database.removeSession(this);
             } finally {
                 database = null;
@@ -296,12 +297,12 @@ public class Session implements SessionInterface {
         savepoints = null;
     }
     
-    private void cleanTempTables() throws SQLException {
+    private void cleanTempTables(boolean closeSession) throws SQLException {
         if(localTempTables != null && localTempTables.size()>0) {
             ObjectArray list = new ObjectArray(localTempTables.values());
             for(int i=0; i<list.size(); i++) {
-                TableData table = (TableData) list.get(i);
-                if(table.isOnCommitDrop()) {
+                Table table = (Table) list.get(i);
+                if(closeSession || table.isOnCommitDrop()) {
                     table.setModified();
                     localTempTables.remove(table.getName());
                     table.removeChildrenAndResources(this);

h2/src/main/org/h2/engine/SessionRemote.java

@@ -178,7 +178,7 @@ public class SessionRemote implements SessionInterface, DataHandler {
             if(traceLevelFile != null) {
                 int level = Integer.parseInt(traceLevelFile);
                 String prefix = getTraceFilePrefix(databaseName);
-                String file = FileUtils.createTempFile(prefix, Constants.SUFFIX_TRACE_FILE, false);
+                String file = FileUtils.createTempFile(prefix, Constants.SUFFIX_TRACE_FILE, false, false);
                 traceSystem.setFileName(file);
                 traceSystem.setLevelFile(level);
             }
@@ -323,7 +323,7 @@ public class SessionRemote implements SessionInterface, DataHandler {
 
     public String createTempFile() throws SQLException {
         try {
-            return FileUtils.createTempFile(databaseName, Constants.SUFFIX_TEMP_FILE, true);
+            return FileUtils.createTempFile(databaseName, Constants.SUFFIX_TEMP_FILE, true, false);
         } catch (IOException e) {
             throw Message.convert(e);
         }
@@ -367,6 +367,7 @@ public class SessionRemote implements SessionInterface, DataHandler {
         } else {
             store = FileStore.open(this, name, magic, cipher, fileEncryptionKey, 0);
         }
+        store.setCheckedWriting(false);
         try {
             store.init();
         } catch(SQLException e) {

h2/src/main/org/h2/engine/Setting.java

@@ -38,6 +38,10 @@ public class Setting extends DbObject {
         throw Message.getInternalError();
     }
     
+    public String getDropSQL() {
+        return null;
+    }
+    
     public String getCreateSQL() {
         StringBuffer buff = new StringBuffer();
         buff.append("SET ");

h2/src/main/org/h2/engine/User.java

@@ -58,6 +58,10 @@ public class User extends RightOwner {
         return getCreateSQL(true, false);
     }
     
+    public String getDropSQL() {
+        return null;
+    }
+    
     public void checkRight(Table table, int rightMask) throws SQLException {
         if(rightMask != Right.SELECT  && !systemUser) {
             database.checkWritingAllowed();

h2/src/main/org/h2/engine/UserDataType.java

@@ -23,6 +23,10 @@ public class UserDataType extends DbObject {
         throw Message.getInternalError();
     }
     
+    public String getDropSQL() {
+        return "DROP DOMAIN IF EXISTS " + getSQL();
+    }
+
     public String getCreateSQL() {
         StringBuffer buff = new StringBuffer();
         buff.append("CREATE DOMAIN ");