Re: [PATCHES] Patch for jdbc2 ResultSet.java

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Joseph Shraibman <jks(at)selectacast(dot)net>
Cc: Barry Lind <barry(at)xythos(dot)com>, pgsql-patches(at)postgresql(dot)org, pgsql-jdbc(at)postgresql(dot)org
Subject: Re: [PATCHES] Patch for jdbc2 ResultSet.java
Date: 2001-09-07 21:30:09
Message-ID: 200109072130.f87LUA329126@candle.pha.pa.us
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Lists: pgsql-jdbc pgsql-patches


Your patch has been added to the PostgreSQL unapplied patches list at:

http://candle.pha.pa.us/cgi-bin/pgpatches

I will try to apply it within the next 48 hours.

>
>
> Barry Lind wrote:
> > Joseph,
> >
> > In looking at this patch it looks OK, except for the following change:
> >
> > > ! if (index>=-rows.size())
> > > --- 725,737 ----
> > > ! if (index > rows_size)
> >
> > I haven't looked at the entire method, but the change you made seems
> > incorrect.
> >
> Oops! Thanks for catching that. Cut and paste error. I hate those.
>
> > If you want this patch to be applied it should be sent to the
> > pgsql-patches mail list.
>
>
> I thought that jdbc stuff was preferred to be on the jdbc list. I guess not.
>
> new patch:
>
>
> *** ResultSet.java.orig Tue Sep 4 16:34:14 2001
> --- ResultSet.java Wed Sep 5 15:35:59 2001
> ***************
> *** 134,140 ****
> {
> //release resources held (memory for tuples)
> if(rows!=null) {
> - rows.setSize(0);
> rows=null;
> }
> }
> --- 134,139 ----
> ***************
> *** 709,716 ****
> public int findColumn(String columnName) throws SQLException
> {
> int i;
> !
> ! for (i = 0 ; i < fields.length; ++i)
> if (fields[i].getName().equalsIgnoreCase(columnName))
> return (i+1);
> throw new PSQLException ("postgresql.res.colname",columnName);
> --- 708,715 ----
> public int findColumn(String columnName) throws SQLException
> {
> int i;
> ! final int flen = fields.length;
> ! for (i = 0 ; i < flen; ++i)
> if (fields[i].getName().equalsIgnoreCase(columnName))
> return (i+1);
> throw new PSQLException ("postgresql.res.colname",columnName);
> ***************
> *** 726,736 ****
> if (index==0)
> throw new SQLException("Cannot move to index of 0");
>
> //if index<0, count from the end of the result set, but check
> //to be sure that it is not beyond the first index
> if (index<0)
> ! if (index>=-rows.size())
> ! internalIndex=rows.size()+index;
> else {
> beforeFirst();
> return false;
> --- 725,737 ----
> if (index==0)
> throw new SQLException("Cannot move to index of 0");
>
> + final int rows_size = rows.size();
> +
> //if index<0, count from the end of the result set, but check
> //to be sure that it is not beyond the first index
> if (index<0)
> ! if (index > -rows_size)
> ! internalIndex = rows_size+index;
> else {
> beforeFirst();
> return false;
> ***************
> *** 739,745 ****
> //must be the case that index>0,
> //find the correct place, assuming that
> //the index is not too large
> ! if (index<=rows.size())
> internalIndex = index-1;
> else {
> afterLast();
> --- 740,746 ----
> //must be the case that index>0,
> //find the correct place, assuming that
> //the index is not too large
> ! if (index <= rows_size)
> internalIndex = index-1;
> else {
> afterLast();
> ***************
> *** 753,760 ****
>
> public void afterLast() throws SQLException
> {
> ! if (rows.size() > 0)
> ! current_row = rows.size();
> }
>
> public void beforeFirst() throws SQLException
> --- 754,762 ----
>
> public void afterLast() throws SQLException
> {
> ! final int rows_size = rows.size();
> ! if (rows_size > 0)
> ! current_row = rows_size;
> }
>
> public void beforeFirst() throws SQLException
> ***************
> *** 967,973 ****
>
> public boolean isAfterLast() throws SQLException
> {
> ! return (current_row >= rows.size() && rows.size() > 0);
> }
>
> public boolean isBeforeFirst() throws SQLException
> --- 969,976 ----
>
> public boolean isAfterLast() throws SQLException
> {
> ! final int rows_size = rows.size();
> ! return (current_row >= rows_size && rows_size > 0);
> }
>
> public boolean isBeforeFirst() throws SQLException
> ***************
> *** 982,995 ****
>
> public boolean isLast() throws SQLException
> {
> ! return (current_row == rows.size() -1 && rows.size() > 0);
> }
>
> public boolean last() throws SQLException
> {
> ! if (rows.size() <= 0)
> return false;
> ! current_row = rows.size() - 1;
> this_row = (byte [][])rows.elementAt(current_row);
> return true;
> }
> --- 985,1000 ----
>
> public boolean isLast() throws SQLException
> {
> ! final int rows_size = rows.size();
> ! return (current_row == rows_size -1 && rows_size > 0);
> }
>
> public boolean last() throws SQLException
> {
> ! final int rows_size = rows.size();
> ! if (rows_size <= 0)
> return false;
> ! current_row = rows_size - 1;
> this_row = (byte [][])rows.elementAt(current_row);
> return true;
> }
> ***************
> *** 1480,1483 ****
> }
> }
> }
> -
> --- 1485,1487 ----
>
>
>
>
>
>
>
> --
> Joseph Shraibman
> jks(at)selectacast(dot)net
> Increase signal to noise ratio. http://www.targabot.com
>
>
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--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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