challenges of Enterprise Application Development
- programming productivity
- integration with existing systems
- freedom of choice
- response to demand
- maintaining security
what is a framework
a framework is a set of code or libraries which provide functionality common to a whole class of applications
- Web application framework may provide
- user session management
- data storage
- a web template system
-
Desktop application framework may provide
- user interface functionality
- widgets
properties of framework
- incomplete
- concrete
- drives driven
- recurring high value problem
framework is a set of libraries
- inversion of control
- default behavior
- extensibility
- non-modifiable framework code
framework features
- support software designing
- code generation
- support customizations
- easy integration with other enterprise applications
- testing mechanisms
- code repository
- possibility to integrate with other 3rd party tools
framework types
- client framework
- windows
- web
- mobile
- server framework
- integration framework
importance of frameworks
applications----->frameworks(spring/ASP.net/EJB)----------->persistence abstraction(hibernate)------->data fabrics/database/caches
Enterprise Applications
large-scale
Scalable
Reliable
secure
Multi-tired architecture
client-tier
middle-tier
data-tier
java technology
java SE
java ME
java EE
Enterprise Java Beans
Beans Types
- session Beans
- Entity Beans
- Message Driven Beans
what is JSP technology
Enables separation of business logic from presentation
Extensible via custom tags
Builds on servlet technology
RMI-IIOP- Denotes the java remote method invocation(RMI) interface over the Internet Inter Orb Protocol(IIOP)
JNDI - Java naming and directory interface
JDBC- java database connectivity is an API for the java programming language that defines how a client may access a database.
JTA- java transaction Api isone of the Java EE APIs allowing distributed transactions to be done
JAXP-java API for XML processing is one of the java XML programming API
JAAS-java authentication and authorization service is a java security framework for user-centric security to augment the java code-based security
JCA-java EE connector architecture is a java based technology solution for connecting application servers and enterprise Information systems(EIS) as part of Enterprise
application integration(EAI) solutions.
JMS- java message service API is a java message oriented middleware(MOM) API for sending messages between two or more clients
