Two approaches to improve Java MIDP record management system in wireless devices

In this paper, we propose two approaches to improve current Java mobile information device profile (MIDP) record management system (RMS) in wireless devices and compare the approaches with current MIDP RMS. These approaches promote the efficient use of Java MIDP RMS in wireless devices such that a faster record retrieval using a smaller memory is achieved, which makes the device consume less battery power. The comparable program segments, which show how to use Java MIDP RMS with or without record-enumeration interface efficiently, are presented and analyzed. The first approach in the paper proposes to use a circular linked list in RMS RecordEnumeration interface. This requires less storage to represent a recordID as a node in the circular linked list than the current RecordEnumeration interface that uses a doubly linked list. The second approach supports the faster access of record traversal, which shows O(log n) time to retrieve any record in MIDP RMS file, while the record retrieval in the current Java MIDP RMS takes O(n) time. In addition, the second approach uses less RMS storage than the method using RecordEnumeration interface does