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From "Myrna van Lunteren (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-1406) ij.property in -p propertyfile can be superceded by -Dproperty on command line (without ij string)
Date Tue, 13 Jun 2006 21:00:30 GMT
ij.property in -p propertyfile can be superceded by -Dproperty on command line (without ij
string)
--------------------------------------------------------------------------------------------------

         Key: DERBY-1406
         URL: http://issues.apache.org/jira/browse/DERBY-1406
     Project: Derby
        Type: Bug

  Components: Tools  
    Versions: 10.0.2.1, 10.2.0.0    
    Reporter: Myrna van Lunteren
    Priority: Minor
     Fix For: 10.2.0.0


The documentation http://db.apache.org/derby/docs/10.1/tools/ttoolsij30600.html indicates
one can set ij properties like ij.maximumDisplayWidth or ij.database in either a properties
file indicated with java org.apache.derby.tools.ij -p <filename>, or by using the -Dij.<propertyname>.

However, it appears that instead, the ij.properties in the file are equivalent to properties
of the same name in a file or on the commandline, but using -Dij.<propertyname> has
no effect.

So, this works:
> java org.apache.derby.tools.ij -p myij.properties
  where myij.properties contained the string: maximumDisplayWidth=15

> java org.apache.derby.tools.ij -p myij.properties
  where myij.properties contained the string: ij.maximumDisplayWidth=15

> java -DmaximumDisplayWidth=5 org.apache.derby.tools.ij

(and if the setting is like so:
> java -DmaximumDisplayWidth=5 org.apache.derby.tools.ij -p myij.properties
  where myij.properties contained the string: ij.maximumDisplayWidth=15 the display width
is actually 5)

But this does not work:
> java -Dij.maximumDisplayWidth=5 org.apache.derby.tools.ij
That is, the display width for an ij select remains the default.

I thought this might be a doc bug, but response from the list indicates it is illogical to
have a property in a file (eg. ij.maximumDisplayWidth) be superceded by a different property
on the command line (eg. -DmaximumDisplayWidth)

I verified that the behavior has been like this since the contribution of derby to apache
(10.0)


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