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Published on 2010-01-25T21:14:11Z
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2010/04/16
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What are some alternatives to inheritance?
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I'm trying to setup a tomcat6 server, and I'm trying to match another setup someone else established. However, my deployment (default Ubuntu install) uses a policy.d/ directory structure, and the established server just uses a catalina.policy file. I've tried setting every entry in policy.d to match…
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I am not able to create a Queue connection in JBOSS4.2.3GA Version & Java1.5, as I am using MDB as per the below details.
I am putting this MDB in a jar file(named utsJar.jar) and copied it in deploy folder of JBOSS, In the test env. this MDB works well
but in another env. [ env settings and…
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Hi,
I am using Postgres and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When I try to connect it gives "ClassNotFoundException". Here is what I get when I try to connect to database:
java.lang.ClassNotFoundException: org.postgresql.Driver
at java.net…
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Hi,
For i am using postgre and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When i try to connect it gives "ClassNotFoundException". Here is what i get when i try to connect to database:
java.lang.ClassNotFoundException: org.postgresql.Driver
at java.net…
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Hi, I'm trying to migrate an application running on JBoss 4.2.2.GA to JBoss 6.0.0.M2
I give you some log to explain my problem :
boot.log :
2010-03-16 09:59:29,406 ERROR [org.jboss.system.server.profileservice.ProfileServiceBootstrap] (Thread-2) Failed to load profile: Summary of incomplete deployments…
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Hi,
I study about today about 2 database design inheritance approaches:
1. Single Table Inheritance
2. Class Table Inheritance
In my student opinion Single Table Inheritance make database more smaller vs other approaches because she use only 1 table.
But i read that the more favorite approach…
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I know that private inheritance is supported in C++ and only public inheritance is supported in C#. I also came across an article which says that private inheritance usually defines a HAS-A relationship and kind of an aggregation relationship between the classes.
EDIT: C++ code for private inheritance:
The…
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I have am working on a web application that makes use of helper classes. These classes hold functions to various operation such as form handling.
Sometimes I need these classes at more than one spot in my application, The way I do it now is to make a new Object. I can't pass the variable, this will…
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Are Composition and Inheritance are the same?
If I want to implement the composition pattern, how can I do that in Java?
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Why does the following produce a compiler error:
public interface OwnSession : ISession { }
[...]
OwnSession s = SessionFactory.OpenSession(); // compiler error (in german unfortunately)
[...]
"SessionFactory" returns a "ISession" on "OpenSession()" (NHibernate)
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