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From "Gary Gregory (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DBCP-347) DelegatingStatement class has incomplete isWrapperFor method
Date Wed, 27 Oct 2010 11:59:20 GMT

    [ https://issues.apache.org/jira/browse/DBCP-347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12925341#action_12925341
] 

Gary Gregory commented on DBCP-347:
-----------------------------------

Would you be willing to provide a patch that includes a unit test to prove what is broken?

> DelegatingStatement class has incomplete isWrapperFor method
> ------------------------------------------------------------
>
>                 Key: DBCP-347
>                 URL: https://issues.apache.org/jira/browse/DBCP-347
>             Project: Commons Dbcp
>          Issue Type: Bug
>         Environment: Windows 7. java version "1.6.0_21". Dell Latitude E6410.
>            Reporter: Robert Poskrobek
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> Currently org.apache.commons.dbcp.DelegatingStatement#isWrapperFor checks only if:
> 1. Requested class is assignable from the DelegatingStatement instance:        iface.isAssignableFrom(getClass())
> 2. Wrapped object is a wrapper for the requested class:            _stmt.isWrapperFor(iface)
> I think there should be another option checked i.e. requested class is assignable from
the wrapped object's class. For example:   iface.isAssignableFrom(_stmt.getClass())
> This is especially that in fact unwrap method properly assumes this possiblity i.e.:
    return iface.cast(_stmt);
> The whole method should be:
>     public boolean isWrapperFor(Class<?> iface) throws SQLException {
>         return iface.isAssignableFrom(getClass()) || iface.isAssignableFrom(_stmt.getClass())
|| _stmt.isWrapperFor(iface);
>     }

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