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Posted to derby-dev@db.apache.org by "Knut Anders Hatlen (JIRA)" <ji...@apache.org> on 2008/07/25 11:47:31 UTC
[jira] Created: (DERBY-3798) Remove unnecessary call to
Hashtable.get() in TableScanResultSet.getNextRowCore()
Remove unnecessary call to Hashtable.get() in TableScanResultSet.getNextRowCore()
---------------------------------------------------------------------------------
Key: DERBY-3798
URL: https://issues.apache.org/jira/browse/DERBY-3798
Project: Derby
Issue Type: Improvement
Components: Newcomer, SQL
Affects Versions: 10.5.0.0
Reporter: Knut Anders Hatlen
Priority: Trivial
I came across this piece of code in TableScanResultSet.getNextRowCore():
if (past2FutureTbl.get(rowLoc) != null)
{
past2FutureTbl.remove(rowLoc);
continue;
}
I believe the call to Hashtable.get() is unnecessary since Hashtable.remove() returns the object it removed or null if the key was not in the table. So I believe the code could be simplified like this without changing the behaviour:
if (past2FutureTbl.remove(rowLoc) != null) {
continue;
}
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[jira] Closed: (DERBY-3798) Remove unnecessary call to
Hashtable.get() in TableScanResultSet.getNextRowCore()
Posted by "Junjie Peng (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/DERBY-3798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Junjie Peng closed DERBY-3798.
------------------------------
Thanks, Myrna.
> Remove unnecessary call to Hashtable.get() in TableScanResultSet.getNextRowCore()
> ---------------------------------------------------------------------------------
>
> Key: DERBY-3798
> URL: https://issues.apache.org/jira/browse/DERBY-3798
> Project: Derby
> Issue Type: Improvement
> Components: Newcomer, SQL
> Affects Versions: 10.5.0.0
> Reporter: Knut Anders Hatlen
> Assignee: Junjie Peng
> Priority: Trivial
> Fix For: 10.5.0.0
>
> Attachments: derby-3798-1.patch, derby-3798-1.stat
>
>
> I came across this piece of code in TableScanResultSet.getNextRowCore():
> if (past2FutureTbl.get(rowLoc) != null)
> {
> past2FutureTbl.remove(rowLoc);
> continue;
> }
> I believe the call to Hashtable.get() is unnecessary since Hashtable.remove() returns the object it removed or null if the key was not in the table. So I believe the code could be simplified like this without changing the behaviour:
> if (past2FutureTbl.remove(rowLoc) != null) {
> continue;
> }
--
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You can reply to this email to add a comment to the issue online.
[jira] Updated: (DERBY-3798) Remove unnecessary call to
Hashtable.get() in TableScanResultSet.getNextRowCore()
Posted by "Junjie Peng (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/DERBY-3798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Junjie Peng updated DERBY-3798:
-------------------------------
Attachment: derby-3798-1.stat
derby-3798-1.patch
Hi, Knut.
I agree with you. I have do the change as you suggested.
Besides, remove an variable never used.
Please check it!
> Remove unnecessary call to Hashtable.get() in TableScanResultSet.getNextRowCore()
> ---------------------------------------------------------------------------------
>
> Key: DERBY-3798
> URL: https://issues.apache.org/jira/browse/DERBY-3798
> Project: Derby
> Issue Type: Improvement
> Components: Newcomer, SQL
> Affects Versions: 10.5.0.0
> Reporter: Knut Anders Hatlen
> Assignee: Junjie Peng
> Priority: Trivial
> Attachments: derby-3798-1.patch, derby-3798-1.stat
>
>
> I came across this piece of code in TableScanResultSet.getNextRowCore():
> if (past2FutureTbl.get(rowLoc) != null)
> {
> past2FutureTbl.remove(rowLoc);
> continue;
> }
> I believe the call to Hashtable.get() is unnecessary since Hashtable.remove() returns the object it removed or null if the key was not in the table. So I believe the code could be simplified like this without changing the behaviour:
> if (past2FutureTbl.remove(rowLoc) != null) {
> continue;
> }
--
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You can reply to this email to add a comment to the issue online.
[jira] Assigned: (DERBY-3798) Remove unnecessary call to
Hashtable.get() in TableScanResultSet.getNextRowCore()
Posted by "Junjie Peng (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/DERBY-3798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Junjie Peng reassigned DERBY-3798:
----------------------------------
Assignee: Junjie Peng
> Remove unnecessary call to Hashtable.get() in TableScanResultSet.getNextRowCore()
> ---------------------------------------------------------------------------------
>
> Key: DERBY-3798
> URL: https://issues.apache.org/jira/browse/DERBY-3798
> Project: Derby
> Issue Type: Improvement
> Components: Newcomer, SQL
> Affects Versions: 10.5.0.0
> Reporter: Knut Anders Hatlen
> Assignee: Junjie Peng
> Priority: Trivial
>
> I came across this piece of code in TableScanResultSet.getNextRowCore():
> if (past2FutureTbl.get(rowLoc) != null)
> {
> past2FutureTbl.remove(rowLoc);
> continue;
> }
> I believe the call to Hashtable.get() is unnecessary since Hashtable.remove() returns the object it removed or null if the key was not in the table. So I believe the code could be simplified like this without changing the behaviour:
> if (past2FutureTbl.remove(rowLoc) != null) {
> continue;
> }
--
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You can reply to this email to add a comment to the issue online.
[jira] Resolved: (DERBY-3798) Remove unnecessary call to
Hashtable.get() in TableScanResultSet.getNextRowCore()
Posted by "Myrna van Lunteren (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/DERBY-3798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Myrna van Lunteren resolved DERBY-3798.
---------------------------------------
Resolution: Fixed
Fix Version/s: 10.5.0.0
I committed the patch with revision 686193.
> Remove unnecessary call to Hashtable.get() in TableScanResultSet.getNextRowCore()
> ---------------------------------------------------------------------------------
>
> Key: DERBY-3798
> URL: https://issues.apache.org/jira/browse/DERBY-3798
> Project: Derby
> Issue Type: Improvement
> Components: Newcomer, SQL
> Affects Versions: 10.5.0.0
> Reporter: Knut Anders Hatlen
> Assignee: Junjie Peng
> Priority: Trivial
> Fix For: 10.5.0.0
>
> Attachments: derby-3798-1.patch, derby-3798-1.stat
>
>
> I came across this piece of code in TableScanResultSet.getNextRowCore():
> if (past2FutureTbl.get(rowLoc) != null)
> {
> past2FutureTbl.remove(rowLoc);
> continue;
> }
> I believe the call to Hashtable.get() is unnecessary since Hashtable.remove() returns the object it removed or null if the key was not in the table. So I believe the code could be simplified like this without changing the behaviour:
> if (past2FutureTbl.remove(rowLoc) != null) {
> continue;
> }
--
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-
You can reply to this email to add a comment to the issue online.