Verify its writeRecStore method, if you already have the first record saved only need to update their values ​​with setRecord. See an example we use here. The RMS supports the creation and management of multiple record stores, shown in Figure below. A record store is a database whose central abstraction is the. Import section import *; import *; import *; import *; import

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The reader of a record, therefore, must be aware of the format that was used to write the record. The owning MIDlet suite may always access the RecordStore and always has access to write and update the store.

The application will provide options for storing the reason for expens and the amount spent using an j2em interface. Rename the List name as well as the instance name as menu. Creating the basic display containers: The record store also maintains a version number, which is an integer that is incremented for each operation that modifies the contents of the RecordStore.

The display item will be automatically linked with the event. RMS stores information in a record store. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The functionality can be extended so as to store expenses according to date, give useful information from the stored expenses data like expenses for a particular month etc.


The type of all record ids is the Java built-in type int. Ahmed Nawaz Mari at A u2me store is a database whose central abstraction is the record.

Khiem Khiem 54 2 8. Access controls are enforced when RecordStores are opened. Records are uniquely identified by a record ID, which is the only primary key type supported.

This could have privacy and security issues depending on the data being shared. Note that this makes your recordStore accessible by any other MIDlet on the device. Daniel Malcolm at We can insert records, read records, search for particular records, and sort records stored by the RMS.


Applications might also include a mechanism to back up the records in a data store to another location. Douglas Frari 3, 2 15 But I don’t known read RMS to return two result for level and score. Using alerts and tickers in J2ME. The RMS supports the creation jm2e management of multiple record stores, shown in Figure below.

It is responsible for maintain j2ne integrity of the MIDlets record stores throughout the normal use of the platform, including reboots, battery changes. Add another List item and rename it as viewExpense. Mathew Emmanuel at All persistent data will be rrms.

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This list will be used to display the main menu. RMS automatically assigns to each row a unique integer that identifies the row in the record store, which is called the record ID. The record store is time stamped with the last time it was modified. This might require server side support.

J2ME RMS Read Write

Now we come to the most interesting and j2ne part of creating the application. RecordStore object for the record store Throws: A record store name is case sensitive and can consist of a maximum of 32 Unicode characters. This recordId is used as the primary key for the records.

Similarly, if a platform performs transparent synchronization of a record store, it is the platform’s responsibility to enforce exclusive access to the record store between the MIDlet and synchronization engine. Just what i was looking for. Record stores are created in platform-dependent locations, which are not rma to the MIDlets. Each record store consists of zero or more records.

Adding RMS functionality in the event handlers using the classes created.