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From "Bernt M. Johnsen (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-276) ResultSet.relative(int row) cannot be called when the cursor is not positioned on a row.
Date Thu, 12 May 2005 09:15:17 GMT
ResultSet.relative(int row) cannot be called when the cursor is not positioned on a row.
----------------------------------------------------------------------------------------

         Key: DERBY-276
         URL: http://issues.apache.org/jira/browse/DERBY-276
     Project: Derby
        Type: Bug
  Components: JDBC  
    Reporter: Bernt M. Johnsen


If the cursor is not positioned on a row, calling ResultSet.relative() causes the following
exception:

Exception in thread "main" ERROR X0X87: ResultSet.relative(int row) cannot be called when
the cursor is not positioned on a row.
        at org.apache.derby.iapi.error.StandardException.newException(StandardException.java:301)
        at org.apache.derby.impl.sql.execute.ScrollInsensitiveResultSet.getRelativeRow(ScrollInsensitiveResultSet.java:336)
        at org.apache.derby.impl.jdbc.EmbedResultSet.movePosition(EmbedResultSet.java:366)
        at org.apache.derby.impl.jdbc.EmbedResultSet.relative(EmbedResultSet.java:1840)

However, The 1.4.2 Javadoc says:
Note: Calling the method relative(1)  is identical to calling the method next() and calling
the method relative(-1) is identical to calling the method previous(). (This is confirmed
by the JDBC 3.0 spec, ch. 14.2.2)

Since next() is valid, so should rs.relative(1) (and all other arguments, since a too large
value will position the
cursor after the last row, and a too low value will position it before the first).


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