mozIStorageAggregateFunction
storage/public/mozistorageaggregatefunction.idlscriptable please add a summary to this article.
... onfinal() this is called after all results have been obtained and notified via mozistorageaggregatefunction.
...class standarddeviationfunc : public mozistorageaggregatefunction { public: ns_imethod onstep(mozistoragevaluearray *aarguments) { print32 value; nsresult rv = aarguments->getint32(&value); ns_ensure_success(rv, rv); mnumbers.appendelement(value); } ns_imethod onfinal(nsivariant **_result) { print64 total = 0; for (pruint32 i = 0; i < mnumbers.length(); i++) total += mnumbers[i]; print32 mean = total / mnumbers.leng...

mozIStorageConnection
void asyncclose([optional] in mozistoragecompletioncallback acallback); void begintransaction(); void begintransactionas(in print32 transactiontype); mozistoragestatement clone([optional] in boolean areadonly); void close(); void committransaction(); void createaggregatefunction(in autf8string afunctionname, in long anumarguments, in mozistorageaggregatefunction afunction); mozistorageasyncstatement createasyncstatement(in autf8string asqlstatement); void createfunction(in autf8string afunctionname, in long anumarguments, in mozistoragefunction afunction); mozistoragestatement createstatement(in autf8string asqlstatement); void createtable(in string atablename, in string atableschema); mozistoragependingstat...
...see mozistorageaggregatefunction for sample code and more details.
... void createaggregatefunction( in autf8string afunctionname, in long anumarguments, in mozistorageaggregatefunction afunction ); parameters afunctionname the name of the aggregate function to create, as seen in sql.
...And 2 more matches

Index
203 mozistorageaggregatefunction interfaces, storage, xpcom, xpcom api reference this is an interface that must be implemented by consumers.

mozIStorageFunction
mozistorageaggregatefunction create a new sqlite aggregate function.

mozIStorageProgressHandler
mozistorageaggregatefunction create a new sqlite aggregate function.

mozIStorageStatement
mozistorageaggregatefunction create a new sqlite aggregate function.

mozIStorageValueArray
mozistorageaggregatefunction create a new sqlite aggregate function.

XPCOM Interface Reference
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Storage
mozistorageaggregatefunction create a new sqlite aggregate function.