The helper components need to access methods in the business service API. It is also important to reduce the coupling among helpers in the presentation tier and among business services in the business tier. It is recommended that a delegate be used because these tiers may be physically distributed across a network. The delegate hides from the client the underlying details of looking up and accessing the business services, and it may also provide intermediate caching to reduce network traffic.
Dispatcher View and Service to Worker
When centralized control becomes desirable to handle such issues as security, workflow management, content retrieval, and navigation,consider the Dispatcher View or Service to Worker patterns.
This pattern is paired with the View Helper pattern to create the Dispatcher View pattern or Service to Worker pattern.
J2EE Related Interview Questions
|Java Script Interview Questions||Adv Java Interview Questions|
|J2SE Interview Questions||Core Java Interview Questions|
|Java Struts Interview Questions||Hibernate Interview Questions|
|JavaServer Faces (JSF) Interview Questions||Java 8 Interview Questions|
|JavaFX Interview Questions||NHibernate Interview Questions|
|Spring MVC Framework Interview Questions||The Java Debugger (JDB) Interview Questions|
J2ee Platform Overview
Presentation Tier Design Considerations And Bad Practices
Business Tier Design Considerations And Bad Practices
J2ee Patterns Overview
Presentation Tier Patterns
Business Tier Patterns
Integration Tier Patterns
Epilogue J2ee Patterns Applied
All rights reserved © 2018 Wisdom IT Services India Pvt. Ltd
Wisdomjobs.com is one of the best job search sites in India.