baserms.java

来自「j2me开发 简单示例 包括 游戏主菜单、rms功能模块」· Java 代码 · 共 49 行

package com.gowin.firstgame;

import javax.microedition.rms.*;



abstract public class BaseRms {
	private String rmsName;
	private RecordStore recordStore;
	
	BaseRms(String rmsName){
		this.rmsName = rmsName;
	}
	
	public void open() {
		try{
			recordStore = RecordStore.openRecordStore(this.rmsName, true);
			if( recordStore.getNumRecords() > 0 ){
				loadData();
			}else{
				createDefaultData();
			}
		}
		catch(Exception e){
			
		}
	}

	public void close(){
		if(recordStore != null ){
			try{
				recordStore.closeRecordStore();
			}catch(Exception e){
				
			}			
		}		
	}
	public RecordStore getRecordStore(){
		return recordStore;
	}
	public String getRMSName(){
		return rmsName;
	}
	
	abstract void createDefaultData() throws Exception;
	abstract void updateData() throws Exception;
	abstract  void loadData()throws Exception ;
}