[OpenLayers-Trac] [OpenLayers] #2957: WFS protocol's read method should respect readOptions and pass them to the format

[OpenLayers]

#2957: WFS protocol's read method should respect readOptions and pass them to the
format
----------------------+-----------------------------------------------------
 Reporter:  ahocevar  |       Owner:              
     Type:  feature   |      Status:  new         
 Priority:  minor     |   Milestone:  2.11 Release
Component:  general   |     Version:  2.10        
 Keywords:            |       State:              
----------------------+-----------------------------------------------------
 While it is possible to configure the WFS protocol with {{{readOptions}}},
 these will only be passed to the format if they have an {{{output}}}
 property. This ticket proposes that {{{readOptions}}} can also be passed
 to the protocol's {{{read}}} method, and that they will always be passed
 to the format.

 With this change, applications will be able to use a configured WFS
 protocol to e.g. determine the hit count:
 {{{
 protocol.read({
     readOptions: {output: "object"},
     resultType: "hits",
     maxFeatures: null,
     callback: function(resp) {
         // process resp.numberOfFeatures here
     }
 });
 }}}

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Ticket URL: <http://trac.openlayers.org/ticket/2957>
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