1700475217
1700475218
private static HashMap<ExtrinsicState,SignInfo>pool=new HashMap
1700475219
1700475220
<ExtrinsicState,SignInfo>();
1700475221
1700475222
//从池中获得对象
1700475223
1700475224
public static SignInfo getSignInfo(ExtrinsicState key){
1700475225
1700475226
//设置返回对象
1700475227
1700475228
SignInfo result=null;
1700475229
1700475230
//池中没有该对象,则建立,并放入池中
1700475231
1700475232
if(!pool.containsKey(key)){
1700475233
1700475234
result=new SignInfo();
1700475235
1700475236
pool.put(key,result);
1700475237
1700475238
}else{
1700475239
1700475240
result=pool.get(key);
1700475241
1700475242
}
1700475243
1700475244
return result;
1700475245
1700475246
}
1700475247
1700475248
}
1700475249
1700475250
重点是看看我们的场景类,我们来测试一下性能差异,如代码清单28-15所示。
1700475251
1700475252
代码清单28-15 场景类
1700475253
1700475254
public class Client{
1700475255
1700475256
public static void main(String[]args){
1700475257
1700475258
//初始化对象池
1700475259
1700475260
ExtrinsicState state1=new ExtrinsicState();
1700475261
1700475262
state1.setSubject(“科目1”);
1700475263
1700475264
state1.setLocation(“上海”);
1700475265
1700475266
SignInfoFactory.getSignInfo(state1);
[
上一页 ]
[ :1.700475217e+09 ]
[
下一页 ]