How to structure a multi-dimensional array in a XML file?
I have a multi-dimensional array such as:
String[][] greatCities = new String[2][2];
greatCities[0][0] = "Vancouver";
greatCities[0][1] = "Charlottetown";
greatCities[1][0] = "Zürich";
greatCities[1][1] = "Bern";
Now I'm looking for a good way to save the structure (no code) this array to a xml file. Best 开发者_StackOverflow社区solution I have so far is:
<GreatCities>
<Item index0="0" index1="0">Vancouver</Item>
<Item index0="0" index1="1">Charlottetown</Item>
<Item index0="1" index1="0">Zürich</Item>
<Item index0="1" index1="1">Bern</Item>
</GreatCities>
Does anyone have a better solution?
As its effectively an array of arrays...
<GreatCity index =0>
<Name index="0">Vancouver</Name>
<Name index="1">Charlottetown</Name>
</GreatCity>
etc...
<GreatCities>
<Items index="0">
<Item index="0">Vancouver</Item>
<Item index="1">Charlottetown</Item>
</Items>
<Items index="1">
<Item index="0">Zürich</Item>
<Item index="1">Bern</Item>
</Items>
</GreatCities>
Your solution may be compact enough, but I think is complicated for the deserialization (e.g. retrieve the array from the xml). In fact, you should know as soon what is the size of the array: to do that you must scan the whole xml document. I'd rather prefer a structure ordered, without attribute indexes:
<GreatCities>
<GreatCity>
<Name>Vancouver</Name>
<Name>Charlottetown</Name>
</GreatCity>
<GreatCity />
<GreatCity>
<Name>Zürich</Name>
<Name/>
<Name>Bern</Name>
</GreatCity>
</GreatCities>
In that sample I have inserted two empty elements to point and empty row/cell. At this point, you may scan the xml document by filling the jagged array.
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