[jira] Closed: (VELOCITY-267) Create a DataSourceResourceLoader that can be wired to the datasource with IoC

["Henning Schmiedehausen (JIRA)" <de...@velocity.apache.org>]

     [ https://issues.apache.org/jira/browse/VELOCITY-267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Henning Schmiedehausen closed VELOCITY-267.
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> Create a DataSourceResourceLoader that can be wired to the datasource with IoC
> ------------------------------------------------------------------------------
>
>                 Key: VELOCITY-267
>                 URL: https://issues.apache.org/jira/browse/VELOCITY-267
>             Project: Velocity
>          Issue Type: Improvement
>          Components: Engine
>    Affects Versions: 1.5
>         Environment: Operating System: other
> Platform: Other
>            Reporter: Matt Raible
>            Priority: Minor
>             Fix For: 1.5
>
>         Attachments: DatabaseResourceLoader.java, resource_ioc.patch, resourceinstance.zip
>
>
> I'd like to create a ResourceLoader similar to DataSourceResourceLoader, except that I'd like to set 
> the DataSource via IoC (in Spring).  The main reason for this is so my database-loading of templates 
> does not depend on a JNDI connection.  
> The main problem is how to manage a ResourceLoader with Spring and then set it declaratively on its 
> VelocityEngine - rather than via properties.
> <suggested patch from Will Glass-Husain>
> Does this mean that you'd need to pass in an instance of a resource manager
> (initialized with the datasource) to VelocityEngine, rather than just set
> the class name as a property? (MR - Yes)
> As I understand the source code, this doesn't seem possible.  But I think a
> patch wouldn't be difficult.  (a change to
> RuntimeInstance.initializeResourceManager) to look for an instance of the
> class as well as the class name.  Something similar to
> LogManager.createLogSystem which accepts as a property the class name of a
> class that implements LogSystem, or an instance of the class itself.
> </suggested patch>

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