svn commit: r820955 - /activemq/trunk/activemq-core/src/main/java/org/apache/activemq/store/jdbc/adapter/DefaultJDBCAdapter.java

[de...@apache.org]

Author: dejanb
Date: Fri Oct  2 10:42:14 2009
New Revision: 820955

URL: http://svn.apache.org/viewvc?rev=820955&view=rev
Log:
https://issues.apache.org/activemq/browse/AMQ-2436 - jdbc sync under high load

Modified:
    activemq/trunk/activemq-core/src/main/java/org/apache/activemq/store/jdbc/adapter/DefaultJDBCAdapter.java

Modified: activemq/trunk/activemq-core/src/main/java/org/apache/activemq/store/jdbc/adapter/DefaultJDBCAdapter.java
URL: http://svn.apache.org/viewvc/activemq/trunk/activemq-core/src/main/java/org/apache/activemq/store/jdbc/adapter/DefaultJDBCAdapter.java?rev=820955&r1=820954&r2=820955&view=diff
==============================================================================
--- activemq/trunk/activemq-core/src/main/java/org/apache/activemq/store/jdbc/adapter/DefaultJDBCAdapter.java (original)
+++ activemq/trunk/activemq-core/src/main/java/org/apache/activemq/store/jdbc/adapter/DefaultJDBCAdapter.java Fri Oct  2 10:42:14 2009
@@ -22,11 +22,13 @@
 import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Set;
 import java.util.TreeSet;
+
 import org.apache.activemq.command.ActiveMQDestination;
 import org.apache.activemq.command.MessageId;
 import org.apache.activemq.command.SubscriptionInfo;
@@ -55,7 +57,7 @@
     private static final Log LOG = LogFactory.getLog(DefaultJDBCAdapter.class);
     protected Statements statements;
     protected boolean batchStatments = true;
-    private Set<Long> lastRecoveredMessagesIds = new TreeSet<Long>();
+    private Set<Long> lastRecoveredMessagesIds = Collections.synchronizedSet(new TreeSet<Long>());
 
     protected void setBinaryData(PreparedStatement s, int index, byte data[]) throws SQLException {
         s.setBytes(index, data);