Will XML Help?

Question

I am loading a nice amount of
data onto a server from a db
so that clients can have quick
access to the info (we wont
have to go back to the db to
get their info). As the data is
growing I am getting an Out
Of Memory error. Do you think
that if I store the info in XML
instead of Objects that it will
take up less memory?

Answer 1

Lets give an example:
public class A{//The class being cached
  public String[] s;//The content of the class
public class DataSomething{//From here you fetch you data, either by fetching cached result or getting it from database
  A[] allAs;//all As are cached here
  Hashtable cachedStrings;//Store all strings here
  public DataSomething(DatabaseConnection _db){//Initilise by getting all values from the database
    //Fetch all data from the database and store in allAs
    int nrAs=_db.getNrRows();//There is no class called DatabaseConnection, it's just imaginary calls
    for(int i=0; i<nrAs; i++){
      A a=(A)_db.get(i);//fetch it from _db
      //Now replace the strings in a by cached strings
      for(int j=0; j<a.s.length; j++){
        String cachedString=(String)cachedStrings.get(a.s[j]);
        if(cachedString==null){//First instance of this string - store it in the cachedStrings
          cachedStrings.put(a.s[j],a.s[j]);
        )else{//Let go of the reference of the string found in the database, and instead refer to an equal instance, already taking up space in memory
          a.s[j]=cachedString;
  public A get(int nr){//someone wishes to get the A numbered 'nr'
    return allAs[nr];
}In the initialisation of the class, all A-objects has references to strings, so the parts are held together by the A-objects. But they just refer to the same instances of strings.
Gil