Are there any problems to expect when srializing java.lang.Object?

Question

When having code like this:
public class SomeClass implements Serializable{
private final String NULL_CONSTANT="dmmystring";
private Object result=new String(NULL_CONSTANT);
...whatever
Class java.lang.Object is not implementing the Serializable Interface. In practise, this works fine however, I would like to understand this question. Will serialization work in every case as long as result is set to a serializable type?

Answer 1

hi,
If the object does not implement the Serilizable marker interface, then when you try to serialize the object, you will get a NotSerializableException. Also when you try to serialize a object, java will check to see if any variables contained in the object are also serializable and if so it serializes the same so in effect all attributes of the object must be either serializable or marked transient. When you mark a variable as transient, for eg
transient Vector v;
this object will not be serialized.
you might want to check out the article at
http://java.sun.com/docs/books/performance/1st_edition/html/JPIOPerformance.fm.html#11352
It contains ways to improve serialization, but it will also be useful in understanding the Serialization concepts as such...
hope this helpzz
cheerz
ynkrish