public class ProtectClassTest{
public static void main(String[] args) throws ProtectClassNoAccessException{
ProtectClass p=new ProtectClass(chenqi);
Systemoutprintln(pbankAccount:+pgetField(pBANKACCOUNT_POS));
Systemoutprintln(pbankPassword:+pgetField(pBANKAPASSWORD_POS));
try{
psetMethod(pBANKACCOUNT_POSrisingsoft);
}
catch(ProtectClassNoAccessException error){
Systemoutprintln(set pbankAccount:+error);
}
try{
psetMethod(pBANKAPASSWORD_POS);
}
catch(ProtectClassNoAccessException error){
Systemoutprintln(set pbankPassword:+error);
}
Systemoutprintln(pbankAccount:+pgetField(pBANKACCOUNT_POS));
Systemoutprintln(pbankPassword:+pgetField(pBANKAPASSWORD_POS));
}
}
class ProtectClass{
//user define exception
public static final class NoAccessException extends Exception{
public String toString(){
return No privilege to access this property(field/method);
}
}
//static final defination section
public static final int BANKACCOUNT_POS=;
public static final int BANKAPASSWORD_POS=;
//Inner property state array
//只需要修改以下的对象元素访问全县数组即可动态控制用户可读/写的数据成员范围( / / / )
private static final int[] PROPERTY_ARRAY={};
//get the property state array count
private final int getPropertyCount(){
return (PROPERTY_ARRAY!=null)?PROPERTY_ARRAYlength:;
}
//get the property available state
public final boolean getPropertyAvailable(int pos){
return (pos>= && pos<getPropertyCount())?(PROPERTY_ARRAY[pos]==):false;
}
//private property defination section
private String bankAccount;
private String bankPassword;
private void setBankAccount(String bankAccount) throws NoAccessException{
if (getPropertyAvailable(BANKACCOUNT_POS))
thisbankAccount = bankAccount;
else
throw new NoAccessException();
}
private void setbankPassword(String bankPassword) throws NoAccessException{
if(getPropertyAvailable(BANKAPASSWORD_POS))
thisbankPassword=bankPassword;
else
throw new NoAccessException();
}
ProtectClass(String bankAccountString bankPassword) throws NoAccessException{
/*
如果使用这两句被屏蔽代码则对象无法构造
thissetBankAccount(bankAccount);
thissetbankPassword(bankPassword);
*/
thisbankAccount=bankAccount;
thisbankPassword=bankPassword;
}
ProtectClass() throws NoAccessException{
this();
}
public final void setMethod(int methodIDString param) throws NoAccessException{
switch(methodID){
case BANKACCOUNT_POS:
try{
setBankAccount(param);
}
catch(NoAccessException error){
throw error;
}
break;
case BANKAPASSWORD_POS:
try{
setbankPassword(param);
}
catch(NoAccessException error){
throw error;
}
break;
}
}
private String getBankAccount(){
if (getPropertyAvailable(BANKACCOUNT_POS))
return bankAccount;
else
return null;
}
private String getbankPassword(){
if(getPropertyAvailable(BANKAPASSWORD_POS))
return bankPassword;
else
return null;
}
public final String getField(int methodID){
switch(methodID){
case BANKACCOUNT_POS:
return getBankAccount();
case BANKAPASSWORD_POS:
return getbankPassword();
default:
return null;
}
}
}
