RE: [OT] basic java question
Hi,
The static methods in my class will be accessed from
servlet, and since servlet will have multiple instance
accessing these classes it is a case of multi
threading
does anyone have a example code for writing this kind
of code
Ashish
--- Mark Galbreath [EMAIL PROTECTED] wrote:
Rewrite the classes using the factory design pattern
and get their
respective instances in other classes using static
initializers. Whether
or not you need to synchronize the methods is
answered by the question: If
two threads gain concurrency of the object will the
resultant change in
state corrupt the integrity of the output?
cf., Joshua Block, Effective Java
(Sun/Addison-Wesley 2001): 5-9 (has a
great forward by Guy Steele, too).
Mark
-Original Message-
From: Ashish Kulkarni
[mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 11, 2003 4:36 PM
Hi Jeff,
This tutorial talks about threads and when to make
them synchronize, but my problem is about a kind of
utility class or worker class which has 2 methods
which i want to keep static so i dont have to create
instance of that class to use these methods..
and i my question is i would not make them
synchronized, if they are independent and do not use
any other class resources, and make them
synchronized
if i have some class variable which is accessed bye
them, so no 2 instance of classes can use the method
at a time( this is off course going to affect
performace)
but i my doubt is, if one static method is calling
other static method in same class, should i make
them synchronized???
Ashish
--- Jeff Kyser [EMAIL PROTECTED] wrote:
Ashish,
Check out the following trail on threads at
java.sun.com,
http://java.sun.com/docs/books/tutorial/essential/threads/index.html
it discusses synchronization and when you need to
use it.
-jeff
On Tuesday, March 11, 2003, at 02:41 PM, Ashish
Kulkarni wrote:
Hi,
I have a following class with 2 static methods,
should
i make the methods synchronized??
I would not make then synchronized, if those
where independent,
but i am not sure since one method is calling
other to
get some data
I will call this method from any class
String a = MyClass.getOtherThing(123);
or
String b = MyClass.getSomeThing(567);
(this is just a example code)
public class MyClass
{
public static String getSomeThing(String abc)
{
// some logic
return 1;
}
public static String getOtherThing(String
abc)
{
// calling method getSomeThing here
String s = getSomeThing(abc);
// do some logic and return result
return 2;
}
}
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Re: [OT] basic java question
Ashish,
Check out the following trail on threads at java.sun.com,
http://java.sun.com/docs/books/tutorial/essential/threads/index.html
it discusses synchronization and when you need to use it.
-jeff
On Tuesday, March 11, 2003, at 02:41 PM, Ashish Kulkarni wrote:
Hi,
I have a following class with 2 static methods, should
i make the methods synchronized??
I would not make then synchronized, if those where
independent,
but i am not sure since one method is calling other to
get some data
I will call this method from any class
String a = MyClass.getOtherThing(123);
or
String b = MyClass.getSomeThing(567);
(this is just a example code)
public class MyClass
{
public static String getSomeThing(String abc)
{
// some logic
return 1;
}
public static String getOtherThing(String abc)
{
// calling method getSomeThing here
String s = getSomeThing(abc);
// do some logic and return result
return 2;
}
}
__
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: [OT] basic java question
Hi Jeff,
This tutorial talks about threads and when to make
them synchronize, but my problem is about a kind of
utility class or worker class which has 2 methods
which i want to keep static so i dont have to create
instance of that class to use these methods..
and i my question is i would not make them
synchronized, if they are independent and do not use
any other class resources, and make them synchronized
if i have some class variable which is accessed bye
them, so no 2 instance of classes can use the method
at a time( this is off course going to affect
performace)
but i my doubt is, if one static method is calling
other static method in same class, should i make them
synchronized???
Ashish
--- Jeff Kyser [EMAIL PROTECTED] wrote:
Ashish,
Check out the following trail on threads at
java.sun.com,
http://java.sun.com/docs/books/tutorial/essential/threads/index.html
it discusses synchronization and when you need to
use it.
-jeff
On Tuesday, March 11, 2003, at 02:41 PM, Ashish
Kulkarni wrote:
Hi,
I have a following class with 2 static methods,
should
i make the methods synchronized??
I would not make then synchronized, if those where
independent,
but i am not sure since one method is calling
other to
get some data
I will call this method from any class
String a = MyClass.getOtherThing(123);
or
String b = MyClass.getSomeThing(567);
(this is just a example code)
public class MyClass
{
public static String getSomeThing(String abc)
{
// some logic
return 1;
}
public static String getOtherThing(String abc)
{
// calling method getSomeThing here
String s = getSomeThing(abc);
// do some logic and return result
return 2;
}
}
__
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RE: [OT] basic java question
Rewrite the classes using the factory design pattern and get their
respective instances in other classes using static initializers. Whether
or not you need to synchronize the methods is answered by the question: If
two threads gain concurrency of the object will the resultant change in
state corrupt the integrity of the output?
cf., Joshua Block, Effective Java (Sun/Addison-Wesley 2001): 5-9 (has a
great forward by Guy Steele, too).
Mark
-Original Message-
From: Ashish Kulkarni [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 11, 2003 4:36 PM
Hi Jeff,
This tutorial talks about threads and when to make
them synchronize, but my problem is about a kind of
utility class or worker class which has 2 methods
which i want to keep static so i dont have to create
instance of that class to use these methods..
and i my question is i would not make them
synchronized, if they are independent and do not use
any other class resources, and make them synchronized
if i have some class variable which is accessed bye
them, so no 2 instance of classes can use the method
at a time( this is off course going to affect
performace)
but i my doubt is, if one static method is calling
other static method in same class, should i make them synchronized???
Ashish
--- Jeff Kyser [EMAIL PROTECTED] wrote:
Ashish,
Check out the following trail on threads at
java.sun.com,
http://java.sun.com/docs/books/tutorial/essential/threads/index.html
it discusses synchronization and when you need to
use it.
-jeff
On Tuesday, March 11, 2003, at 02:41 PM, Ashish
Kulkarni wrote:
Hi,
I have a following class with 2 static methods,
should
i make the methods synchronized??
I would not make then synchronized, if those where independent,
but i am not sure since one method is calling
other to
get some data
I will call this method from any class
String a = MyClass.getOtherThing(123);
or
String b = MyClass.getSomeThing(567);
(this is just a example code)
public class MyClass
{
public static String getSomeThing(String abc)
{
// some logic
return 1;
}
public static String getOtherThing(String abc)
{
// calling method getSomeThing here
String s = getSomeThing(abc);
// do some logic and return result
return 2;
}
}
__
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For additional commands, e-mail:
[EMAIL PROTECTED]
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