RMS data lost after deloying app. in mobile

[saira514]

my app saves some data in record store, and simply view it! it works fine in emulator but when i deploy my app to mobile the data is lost. If i save some data in record store while using mobile, the data remains there! but the data saved while using emulator, does not show up when the app is running on mobile.
im using netbeans 6.5, sun wireless toolkit emulator. below is my code:


form1 = new Form("This is RMS DEMO");
Display.getDisplay(this).setCurrent(form1);

rs = RecordStore.openRecordStore("Student1", true);


//Add a record

String rec = "Some text";
byte[] recbyte = rec.getBytes();
rs.addRecord(recbyte, 0, recbyte.length);


//Read records

RecordEnumeration re = rs.enumerateRecords(null, null, false);
while(re.hasNextElement()){
String str = new String(re.nextRecord());
form1.append(str);

[ektasrv]

When you deploy the app on the real device, only app is deployed on the device not the RMS or datafiles that you have created on the emulator.

You need to add that old data again on the device.

[saira514]

1) yes this is what i was thinking. then what do all tha java apps use for persistent storage (so that the data should be retained in the device too) Can we somehow package the *.db file in our *.jar file?
2) If not, then what is the solution (other than using text files)

[ektasrv]

1) yes this is what i was thinking. then what do all tha java apps use for persistent storage (so that the data should be retained in the device too) Can we somehow package the *.db file in our *.jar file?
2) If not, then what is the solution (other than using text files)

1) -- Not possible to put RMS in device with JAR like this.
2) -- You can include the data in a text file, recordwise (1 record per line) in the JAR, read it from JAR on the firts launch of the app, and add all lines(records) to the device RMS.

[saira514]

thanks for the suggestion.
i have one more query. i dont know much about the usage of XML files but can we use them as an alternative to the method you told in your previous post.

[ektasrv]

thanks for the suggestion.
i have one more query. i dont know much about the usage of XML files but can we use them as an alternative to the method you told in your previous post.

Yes you can use XML for this purpose, but then you require to use XML parser to first parse then store in RMS reading the XML from JAR.
So I will reccomand to use simple text file in the JAR for this.