[jboss-jira] [JBoss JIRA] (JBJCA-1321) Statement.cancel() is not invoked until the statement is completed

[Lin Gao (JIRA)]

    [ https://issues.jboss.org/browse/JBJCA-1321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13251844#comment-13251844 ] 

Lin Gao commented on JBJCA-1321:
--------------------------------

PRs are sent: https://github.com/ironjacamar/ironjacamar/pull/526, https://github.com/ironjacamar/ironjacamar/pull/527

The status should be changed after PRs are merged.

> Statement.cancel() is not invoked until the statement is completed
> ------------------------------------------------------------------
>
>                 Key: JBJCA-1321
>                 URL: https://issues.jboss.org/browse/JBJCA-1321
>             Project: IronJacamar
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: WildFly/IronJacamar 1.3.4.Final, 1.2.7.Final
>            Reporter: lorenzo benvenuti
>            Assignee: Lin Gao
>            Priority: Critical
>             Fix For: WildFly/IronJacamar 1.3.5.Final, 1.2.8.Final
>
>
> Hi,
> in our application we are using the {{Statement.cancel()}} method to stop long-running queries; in Wildfly 9.0.2 this is not working because the {{cancel()}} method is synchronized using a lock which is not released until the query is executed. In {{WrappedStatement}}:
> {code:java}
> public void cancel() throws SQLException
>     {
>       if (doLocking)
>           lock();
>        try
>        {
>         /* ... */
> {code}
> It seems this behaviour has changed from version 1.2.5.Final of ironjacamar-jdbc; in version 1.2.4.Final {{WrappedStatement.cancel}} doesn't try to obtain the lock. 
> Probably I'm missing something, but to me it's strange that in order to cancel a statement you have to wait for its completion.
> Thank you,
> lorenzo



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