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Date: Mon, 9 Jun 2008 13:00:45 -0700 (PDT)
From: "Mamta A. Satoor (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Updated: (DERBY-3338) CancelQueryTask.forgetContext() could
 be simplified.
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     [ https://issues.apache.org/jira/browse/DERBY-3338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mamta A. Satoor updated DERBY-3338:
-----------------------------------

    Attachment: DERBY_3338_rework_forgetContext_v1.diff

> CancelQueryTask.forgetContext() could be simplified.
> ----------------------------------------------------
>
>                 Key: DERBY-3338
>                 URL: https://issues.apache.org/jira/browse/DERBY-3338
>             Project: Derby
>          Issue Type: Improvement
>          Components: Newcomer, Services, SQL
>            Reporter: Daniel John Debrunner
>            Assignee: Mamta A. Satoor
>            Priority: Minor
>         Attachments: DERBY_3338_rework_forgetContext_v1.diff
>
>
> Minor issue but CancelQueryTask.forgetContext() has this code (in GenericStatementContext.java)
>         public void forgetContext() {
>             boolean mayStillRun = !cancel();
>             if (mayStillRun) {
>                 synchronized (this) {
>                     statementContext = null;
>                 }
>             }
>         }
> The mayStillRun = !cancel() is somewhat confusing. I can't see from the javadoc of TimerTask.cancel() how its return value could indicate the task may still run.
> Less confusing code could be:
>         public void forgetContext() {
>                synchronized (this) {
>                     statementContext = null;
>                 }
>                 cancel();
>         }

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