Vector Use as a container

Question

Hi guys,
I have to use a Vector object to store a growable array of objects,but
I have an implementative question :
I have to create the Vector only the first time the class cointaining
it will be extecuted , then I have to add elements ,
without deleting old entries , and creating new instances of the
class :
Here is my actual simple code , that I think will delete all my
entries every time the class is executed.
Another question : after deserializing a class , I need to
instanciate it?
Thanks a lot guys!!! bytebye
(please note that I'm obliged to use Vector..)
public class AgentMessage implements Serializable{
private static final long serialVersionUID = 1L;
transient private StaticPart sp;//per metodo get
transient private DynElement de;
private Vector dynvector;
public AgentMessage(String agent,byte[] code,String
mainclass,Certificate signerId,PrivateKey priv,String
configuration,Serializable dclear,byte[] dsecret,PathEl[] dpath,byte[]
c){
sp=new
StaticPart(agent,code,mainclass,signerId,priv,configuration);
de=new DynElement(dclear,dsecret,c,dpath);//deve diventare vector
dynvector=new Vector();/
dynvector.add(de);
}

Answer 1

Hi guys,
I have to use a Vector object to store a growable
array of objects,but
I have an implementative question :
I have to create the Vector only the first time the
class cointaining
it will be extecuted , then I have to add elements ,
without deleting old entries , and creating new
instances of the
class :
Here is my actual simple code , that I think will
delete all my
entries every time the class is executed.You're looking for your Vector to be declared static. This would create your Vector object only once, and facilitates growing it subsequently per instance of your class.
Another question : after deserializing a class , I
need to
instanciate it?
Thanks a lot guys!!! bytebye
(please note that I'm obliged to use Vector..)
Serialization is applicable per instance of your class. Hence, "deserializing a class" holds no water.
public class AgentMessage implements Serializable{
private static final long serialVersionUID =
1L;
transient private StaticPart sp;//per metodo
get
transient private DynElement de;
private Vector dynvector;
public AgentMessage(String agent,byte[]
code,String
ainclass,Certificate signerId,PrivateKey priv,String
configuration,Serializable dclear,byte[]
dsecret,PathEl[] dpath,byte[]
c){
sp=new
t,code,mainclass,signerId,priv,configuration);
de=new
DynElement(dclear,dsecret,c,dpath);//deve diventare
vector
dynvector=new Vector();/
dynvector.add(de);
}Please embed your code in  the next time for better readability.