baserms.java

来自「Source-DeathFlight手机游戏,死亡飞行,适合初学者学习.」· Java 代码 · 共 48 行

import javax.microedition.rms.*;

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

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

}