Hi, I have placed my package in the \Apache Group\Tomcat 4.1\common\classes\ folder
and they are all standard Java classes [no servlets or jsps]. One of the methods
invoked in my main class serializes an object and saves it to a persistent file at
runtime :
---------------------Start Snip 1-----------------------
public boolean saveUser(){
File file2 = new java.io.File("states.gip");
try{
myUser.allocateUser(user);
FileOutputStream out2 = new FileOutputStream(file2);
ObjectOutputStream s2 = new ObjectOutputStream(out2);
s2.writeObject(myUser);
s2.flush();
System.out.println("You have save successfully");
return true;
}
catch(Exception e){
e.printStackTrace();
System.out.println("You have save UN-Successfully");
return false;
}
}
---------------------End Snip 1-----------------------
When the class is initialised/created, it first checks to see if there is a file
called states.gip and if there is, then it reads in the object, if there isnt, then it
creates an object and at a latter stage saves it:
---------------------Start Snip 2-----------------------
public boolean createUser(String name){
try{//see if a user had been created and try to load it back
File file2 = new java.io.File("states.gip");
FileInputStream in = new FileInputStream(file2);
ObjectInputStream s1 = new ObjectInputStream(in);
myUser = (MainUser)s1.readObject();
user = recommenderEPG.addUser(name);
user = myUser.unallocate(user);
System.out.println("There was an old user!");
return true;
}
catch(Exception e){//user has not been created so an exception is thrown -going to
create a new user
try{
myUser = new MainUser(name);
user = recommenderEPG.addUser(name);
myUser.allocateUser(user);
System.out.println("there is definitely no old user");
return true;
}
catch (DataNotFoundException ef){
return false;
}
}
---------------------End Snip 2-----------------------
When the class does get created for the first time, it does not see the 'states.gip'
file, which is correct, because it has not been created yet. If it is instantiated for
a second or nth time, it always sees the file and loads it correctly. My Question is:
where is this file stored? I can not find a physical trace of this file - i have done
search after search and it is not there - yet the Java class opens it correcly!!!!!
Help!
Regards,
Clive
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.435 / Virus Database: 244 - Release Date: 30/12/2002
