--no commit message

--no commit message

h2/src/main/org/h2/constant/ErrorCode.java

@@ -912,6 +912,15 @@ public class ErrorCode {
      */
     public static final int CONSTRAINT_NOT_FOUND_1 = 90057;
 
+    /**
+     * The error with code <code>90058</code> is thrown when trying to call
+     * commit or rollback inside a trigger, or when trying to call a method
+     * inside a trigger that implicitly commits the current transaction, if an
+     * object is locked. This is not because it would release the lock too
+     * early.
+     */
+    public static final int COMMIT_ROLLBACK_NOT_ALLOWED = 90058;
+
     /**
      * The error with code <code>90059</code> is thrown when
      * a query contains a column that could belong to multiple tables.
@@ -1753,7 +1762,7 @@ public class ErrorCode {
      */
     public static final int CAN_ONLY_ASSIGN_TO_VARIABLE_1 = 90137;
 
-    // next is 90058, 90108
+    // next is 90108
 
     /**
      * INTERNAL

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

@@ -11,7 +11,7 @@ package org.h2.engine;
  * - Test with Hibernate
  * - Run FindBugs
  * - ant jarClient, check jar file size
- *
+ * - ant jar, test with IKVM
  * - Compile with JDK 1.4, 1.5 and 1.6:
  *   set path=C:\Programme\Java\jdk1.6.0\bin;%PATH%
  *   set JAVA_HOME=C:\Programme\Java\jdk1.6.0

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

@@ -85,10 +85,17 @@ public class Session implements SessionInterface {
     private HashSet temporaryResults;
     private int queryTimeout = SysProperties.getMaxQueryTimeout();
     private int lastUncommittedDelete;
+    private boolean commitOrRollbackDisabled;
 
     public Session() {
     }
     
+    public boolean setCommitOrRollbackDisabled(boolean x) {
+        boolean old = commitOrRollbackDisabled;
+        commitOrRollbackDisabled = x;
+        return old;
+    }
+
     private void initVariables() {
         if (variables == null) {
             variables = new HashMap();
@@ -238,6 +245,7 @@ public class Session implements SessionInterface {
     }
 
     public void commit(boolean ddl) throws SQLException {
+        checkCommitRollback();
         lastUncommittedDelete = 0;
         currentTransactionName = null;
         if (containsUncommitted()) {
@@ -285,7 +293,14 @@ public class Session implements SessionInterface {
         unlockAll();
     }
     
+    private void checkCommitRollback() throws SQLException {
+        if (commitOrRollbackDisabled && locks.size() > 0) {
+            throw Message.getSQLException(ErrorCode.COMMIT_ROLLBACK_NOT_ALLOWED);
+        }
+    }
+
     public void rollback() throws SQLException {
+        checkCommitRollback();
         currentTransactionName = null;
         boolean needCommit = false;
         if (undoLog.size() > 0) {
@@ -491,6 +506,7 @@ public class Session implements SessionInterface {
     }
 
     public void rollbackToSavepoint(String name) throws SQLException {
+        checkCommitRollback();        
         if (savepoints == null) {
             throw Message.getSQLException(ErrorCode.SAVEPOINT_IS_INVALID_1, name);
         }

h2/src/main/org/h2/schema/TriggerObject.java

@@ -80,11 +80,14 @@ public class TriggerObject extends SchemaObjectBase {
         }
         load(session);
         Connection c2 = session.createConnection(false);
+        boolean old = session.setCommitOrRollbackDisabled(true);
         try {
             triggerCallback.fire(c2, null, null);
         } catch (Throwable e) {
             throw Message.getSQLException(ErrorCode.ERROR_EXECUTING_TRIGGER_3, new String[] { getName(),
                     triggerClassName, e.toString() }, e);
+        } finally {
+            session.setCommitOrRollbackDisabled(old);
         }
     }
 
@@ -147,6 +150,7 @@ public class TriggerObject extends SchemaObjectBase {
         }
         Connection c2 = session.createConnection(false);
         boolean old = session.getAutoCommit();
+        boolean oldDisabled = session.setCommitOrRollbackDisabled(true);
         try {
             session.setAutoCommit(false);
             triggerCallback.fire(c2, oldList, newList);
@@ -160,6 +164,7 @@ public class TriggerObject extends SchemaObjectBase {
                 }
             }
         } finally {
+            session.setCommitOrRollbackDisabled(oldDisabled);
             session.setAutoCommit(old);
         }
     }

h2/src/main/org/h2/tools/Console.java

@@ -56,6 +56,7 @@ ShutdownHandler {
     private Font font;
     private Image icon16, icon24;
     private Frame frame;
+    private Button startBrowser;
 //#endif
     private static final int EXIT_ERROR = 1;
     private Server web, tcp, pg;
@@ -302,7 +303,7 @@ ShutdownHandler {
         }
         mainPanel.add(text, constraintsTextField);
 
-        Button startBrowser = new Button("Start Browser");
+        startBrowser = new Button("Start Browser");
         startBrowser.setFocusable(false);
         startBrowser.setActionCommand("console");
         startBrowser.addActionListener(this);
@@ -317,10 +318,9 @@ ShutdownHandler {
         try {
             frame.setVisible(true);
         } catch (Throwable t) {
+            // ignore
             // some systems don't support this method, for example IKVM
             // however it still works
-            // ignore
-            System.out.println("URL: " + web.getURL());
         }
     }
 
@@ -343,6 +343,9 @@ ShutdownHandler {
             startBrowser();
         } else if ("status".equals(command)) {
             showWindow(false);
+        } else if (startBrowser == e.getSource()) {
+            // for some reason, IKVM ignores setActionCommand
+            startBrowser();
         }
     }
 //#endif

h2/src/test/org/h2/test/TestAll.java

@@ -159,10 +159,10 @@ java org.h2.test.TestAll timer
 
 /*
 
-CREATE TABLE in a before trigger results in an internal error.
+add link to new in use, links
 
 merge query and result frames
-auto-complete in-place
+in-place auto-complete 
 
 scheduler: what if invoke takes more than...
 scheduler: log at startup next 5
@@ -176,10 +176,6 @@ read uncommitted and multi-threaded mode at the same time is dangerous
 
 add @author
 
-console autocomplete with pos
-
-remove old in use, links
-
 test multi-threaded kernel fulltext
 
 fix or disable the linear hash index
@@ -189,6 +185,10 @@ Can sometimes not delete log file? need test case
 Add where required // TODO: change in version 1.1
 
 History:
+Improved support for IKVM.
+A error is now thrown when trying to call a method
+    inside a trigger that implicitly commits the current transaction,
+    if an object is locked.
 
 Roadmap:
 

h2/src/test/org/h2/test/db/TestTriggersConstraints.java

@@ -131,12 +131,37 @@ public class TestTriggersConstraints extends TestBase implements Trigger {
             if (!newRow[1].toString().endsWith("-updated")) {
                 throw new Error("supposed to be updated");
             }
+            checkCommit(conn);
         } else if (triggerName.startsWith("UPD_BEFORE")) {
             newRow[1] = newRow[1] + "-updated2";
         } else if (triggerName.startsWith("UPD_AFTER")) {
             if (!newRow[1].toString().endsWith("-updated2")) {
                 throw new Error("supposed to be updated2");
             }
+            checkCommit(conn);
+        }
+    }
+    
+    private void checkCommit(Connection conn) {
+        try {
+            conn.commit();
+            throw new Error("Commit must not work here");
+        } catch (SQLException e) {
+            try {
+                checkNotGeneralException(e);
+            } catch (Exception e2) {
+                throw new Error("Unexpected: " + e.toString());
+            }
+        }
+        try {
+            conn.createStatement().execute("CREATE TABLE X(ID INT)");
+            throw new Error("CREATE TABLE WORKED, but implicitly commits");
+        } catch (SQLException e) {
+            try {
+                checkNotGeneralException(e);
+            } catch (Exception e2) {
+                throw new Error("Unexpected: " + e.toString());
+            }
         }        
     }