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retaining comment in properties file

Posted on 2002-04-17
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Last Modified: 2008-02-26
I'm loading properties file using properties api and saving it back with changes using same api...but if any comments were present in the file (preceded by #)..are getting lost if i save back.

Is their any way to retain the comments which were present in the file while saving back.

Thanks,
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Question by:vibhav
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by:Venci75
ID: 6947531
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saxaboo earned 50 total points
ID: 6947539
AFAIK, there is no way to retain the header or comments. As a workaround, you can use a dummy property :

---- myfile.properties ----
#This is a comment
myvalue1=foo
myvalue2=bar
__MY_COMMENT__=This is a comment \
               that spans on 3 \
               lines

HTH,

-S
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by:shyamkumarreddy
ID: 6947540
Which mode do u open the file.
I think u have used write mode to do it.
So u r loosing your comments.
Did u try to write it back to the file with comments.

Shyam
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by:Andrey_Kulik
ID: 6947547
Default implementation of java.util.Properties ignores all comments. You could create wrapper that will replace all first '#' or '!' chars in property file with unique strings like:
#comment
comment206467=comment

before reading property file and will replace all this properties names with '#' or '!' symbols back when property file will be stored.

Best regards
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by:Moondancer
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Please click the link below to manage all your open and locked questions here needing your response and attention.
http://www.experts-exchange.com/jsp/memberProfile.jsp?mbr=vibhav&showQHistory=true
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by:Venci75
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No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
Answered by: saxaboo
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by:SpideyMod
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per recommendation

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