Apache Camel is a powerful rule based routing and mediation engine which provides a POJO based implementation of the Enterprise Integration Patterns using an extremely powerful fluent API (or declarative Java Domain Specific Language) to configure routing and mediation rules. The Domain Specific Language means that Apache Camel can support type-safe smart completion of routing rules in your IDE using regular Java code without huge amounts of XML configuration files; though Xml Configuration inside Spring is also supported. ·
One of the biggest promises of Business Process Management was that the business people can model and execute their business processes without involvement from IT folks. This promise was kept in a simple workflow sceanarios by utilizing limited number of 'built-in' activity types of BPMS packages but once you face little more complex business process sceanarios providing transactional integration with existing software and complex interactions with human beings, this limited expression power make it hard to drag and drop process modeling, and finally it brings a huge help from software vendors or system integrators and write a lot of code that is making processes utterly inflexible downstream. That means, concurrent BPMS is extremely lack in something like 'Technical Abstraction' and 'Expression Extensibility'. ·
Apache MyFaces Orchestra aims to provide a simple way to combine a web-framework with a persistence layer. Typically, an Apache MyFaces Orchestra stack might combine JavaServer Faces, Spring and a JPA implementation like Toplink, Hibernate, etc.
The underlying idea is to provide long persistence sessions to the web-developer - this is done by associating these sessions with a conversational context.
The conversational context is opened when the bean configured for this context is first loaded. It can be manually closed by the programmer, plus a time-out can be configured as a global parameter. ·
Д. Я. Рахматуллин. Международная уфимская зимняя школа-конференция по математике и физике с участием студентов, аспирантов и молодых ученых. 30 ноября~-- 06 декабря 2005 г., г. Уфа. Сборник трудов., volume III of Математика, page 151--157. Уфа: РИО БашГУ, (2005)