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From "Filip Maj (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CB-559) Windows Phone plugins (aka Commands) are instantiated on every cordova command call
Date Mon, 23 Apr 2012 23:56:33 GMT

     [ https://issues.apache.org/jira/browse/CB-559?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Filip Maj resolved CB-559.
--------------------------

    Resolution: Fixed

Fixed in [06dc63|http://git-wip-us.apache.org/repos/asf?p=incubator-cordova-wp7.git;a=commit;h=06dc6357e44d3e25ce18743061a03ce90cf0e9a2].
                
> Windows Phone plugins (aka Commands) are instantiated on every cordova command call
> -----------------------------------------------------------------------------------
>
>                 Key: CB-559
>                 URL: https://issues.apache.org/jira/browse/CB-559
>             Project: Apache Callback
>          Issue Type: Improvement
>          Components: WP7
>    Affects Versions: 1.6.1
>         Environment: Samsung Focus
>            Reporter: Filip Maj
>            Assignee: Filip Maj
>             Fix For: 1.7.0
>
>
> Each instance of a plugin, in Windows Phone terminology a Command, just like on other
platforms, are lazily-loaded. However, each is not cached once instantiated. Therefore, on
every cordova command execution into native, a new instance of the desired Command is created.
> For details, see the [ProcessCommand method and how it always invokes the CreateByServiceName
method|https://github.com/apache/incubator-cordova-wp7/blob/master/framework/Cordova/NativeExecution.cs#L73],
which in turns [always creates a new instance of a Plugin|https://github.com/apache/incubator-cordova-wp7/blob/master/framework/Cordova/CommandFactory.cs#L101].
> Instead of caching the Command Type inside the Command Factory, we should cache instances
of the plugins. This should speed up the bridge on calls to the same plugin as well as preserve
the assumption that Plugins are singleton.
> Working on patching this.

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