Difference between revisions of "Porting example"

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=== Step 1 Choose and object to port ===
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=== Step 1 Choose an object to port ===
I randomly picked the Filter object e.g. [http://api.openoffice.org/source/browse/*checkout*/api/helperapi/com/sun/star/helper/calc/XFilter.idl XFilter] in the helperapi, then browse the [http://api.openoffice.org/source/browse/api/helperapi/ helperapi] code. I find XFilter is implemented by [http://api.openoffice.org/source/browse/*checkout*/api/helperapi/impl/com/sun/star/helper/calc/FilterImpl.java FilterImpl.java] but it expects to be initialised by an [http://api.openoffice.org/source/browse/*checkout*/api/helperapi/com/sun/star/helper/calc/XAutoFilter.idl XAutoFilter] implementation [http://api.openoffice.org/source/browse/*checkout*/api/helperapi/impl/com/sun/star/helper/calc/AutoFilterImpl.java object]
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I randomly picked the Filter object e.g. [http://api.openoffice.org/source/browse/*checkout*/api/helperapi/com/sun/star/helper/calc/XFilter.idl XFilter] in the helperapi, then browsed the [http://api.openoffice.org/source/browse/api/helperapi/ helperapi] code. I find XFilter is implemented by [http://api.openoffice.org/source/browse/*checkout*/api/helperapi/impl/com/sun/star/helper/calc/FilterImpl.java FilterImpl.java] but it expects to be initialised by an [http://api.openoffice.org/source/browse/*checkout*/api/helperapi/com/sun/star/helper/calc/XAutoFilter.idl XAutoFilter] implementation [http://api.openoffice.org/source/browse/*checkout*/api/helperapi/impl/com/sun/star/helper/calc/AutoFilterImpl.java object]
  
so already we need to think about providing an implementation for XFilter but also for XAutoFilter
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so already we need to think about providing an implementation not only for XFilter but also for XAutoFilter
  
looking at XAutoFilter.idl we see that there is a <tt>Filters(</tt> attribute/method that returns a [[Collection]] of Filters, so additionally I now realise I also need an implementation of the XFilters object. Around this time I notice that the XAutoFilter implementation is key object that the others are accessed/provided from. After some searching through the source code I find this is an attribute of the <tt>Sheet</tt> object
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looking at XAutoFilter.idl we see that there is a <tt>Filters()</tt> attribute/method that returns a [[Collection]] of Filters, so additionally I now realise I also need an implementation of the XFilters object. The XAutoFilter implementation is the key object that the others are accessed/provided from. After some searching through the source code I find this is an attribute of the [http://api.openoffice.org/source/browse/*checkout*/api/helperapi/impl/com/sun/star/helper/calc/SheetImpl.java SheetImpl] object
  
 
so, to summarize, after initially choosing one object to have a crack at porting, I find in fact I actually need to provide implementations for the following interfaces
 
so, to summarize, after initially choosing one object to have a crack at porting, I find in fact I actually need to provide implementations for the following interfaces
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* XAutoFilter
 
* XAutoFilter
 
* XFilters
 
* XFilters
and I need to add a new attribute to return an <tt>XAutoFilter</tt> implementation
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and also I need to add a new attribute to return an <tt>XAutoFilter</tt> implementation
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=== Step 2 Port the idl files ===

Revision as of 11:49, 23 February 2007

Step 1 Choose an object to port

I randomly picked the Filter object e.g. XFilter in the helperapi, then browsed the helperapi code. I find XFilter is implemented by FilterImpl.java but it expects to be initialised by an XAutoFilter implementation object

so already we need to think about providing an implementation not only for XFilter but also for XAutoFilter

looking at XAutoFilter.idl we see that there is a Filters() attribute/method that returns a Collection of Filters, so additionally I now realise I also need an implementation of the XFilters object. The XAutoFilter implementation is the key object that the others are accessed/provided from. After some searching through the source code I find this is an attribute of the SheetImpl object

so, to summarize, after initially choosing one object to have a crack at porting, I find in fact I actually need to provide implementations for the following interfaces

  • XFilter
  • XAutoFilter
  • XFilters

and also I need to add a new attribute to return an XAutoFilter implementation

Step 2 Port the idl files

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