This document discusses differences between BPEL 1.1 and BPEL 2.0 and provides guidance on migrating a BPEL 1.1 process to be compatible with a BPEL 2.0 engine. Key changes include removing the "partner" concept and instance-level compensation, changing syntax like replacing "terminate" with "exit", making expressions use XML elements rather than attributes, restricting links, clarifying messaging behavior, and updating compensation handling. The migration may require syntactic changes, process rewrites, or changing vendor-specific behaviors.
The document describes a proposed design for a Page Object API that provides reusable component models ("Generic UXD Legos") to reduce boilerplate code when implementing page objects. Key aspects include:
1. Defining interfaces for common UI components like Loadable, Expandable, along with associated state beans, builders, and configuration beans.
2. Using inheritance, polymorphism and generics to allow components to be extended and customized while maintaining a consistent API.
3. Providing default implementations that can be overridden as needed, along with mechanisms for dynamic configuration based on test environment.
4. Describing how new component types can be added by following a "recipe" for specification, design, and implementation.
Workflow functional concept on openerp7Aziza Mohamed
The document discusses workflow functionality in OpenERP 7. It defines workflow as describing the evolution of documents over time through defined states and transitions. It provides an example of a holiday request approval workflow and steps for customizing it, including modifying states, activities, and transitions in the XML file. It also discusses how to hide buttons and control approvals based on user attributes like job role.
Java Server Faces + Spring MVC FrameworkGuo Albert
This document discusses the architecture of a Java Server Faces application integrated with the Spring MVC framework. It describes the presentation and business tiers, including the front controller, UI components, backing beans, views, service beans, and configuration files like web.xml, faces-config.xml, and applicationContext.xml. It also includes class diagrams and details the page flow and configuration of the demo application.
Introduction to Everit Component Registry - B Zsoldosmfrancis
OSGi Community Event 2014
Abstract:
Everit Component Registry is an amazingly simple yet powerful new open source Component Model. The primary goal of its concept is to allow more configuration options via Configuration Admin and by doing that, offer an alternative to the de-facto standard, whiteboard pattern.
The implementation of Everit Component Registry is in progress. The goal of the session is to
show the status of the project
talk about all the ideas that came up till now
collect about new ideas and weaknesses with the help of the audience
See the most important parts of the concept below:
Configuration via Configuration Admin The concept is similar to Declarative Services. Every configuration should be done via Configuration Admin.
Reference clauses Instead of a simple OSGi filter, references of these components can be configured with clause(s). By doing that it is possible to specify attributes of the binding on the consumer side. The OSGi filter is only a directive of the clause. E.g.: Imagine a ServletContext component that accepts Servlet OSGi services. A clause that selects a servlet can be the following:
myServlet;filter:=(...);mapping=/my/*;init_param1=value1
Cardinality The following cardinalities are supported: 0..1, 1..1, 0..N, 1..N. The choice must be made in the source code. In case of 0..1 and 1..1 cardinality, the type of the clause configuration property is String. In case of 0..N and 1..N the type is String[].
Optionality There is no optional support like in Declarative Services. In case the cardinality is 0..1 or 0..N, it can be configured via Configuration Admin if a service should be picked up or not. In case one ore more clause is defined via ConfigAdmin, all of the clauses must be satisfied.
Dynamism If it is allowed by the programmer of the component, the reference can be updated without restarting the component instance.
Programmability Sub-status and message can be dropped from activate() and deactivate() methods. By doing that, it is possible to get more information in the console about the state of the component (E.g.: unsatisfied programmatic requirements).
New component classes and already instantiated objects can be registered programmatically. By doing that, existing Component Model logic can be mixed with the new concept.
Avoiding magic Using proxy instances, bytecode manipulation, runtime inheritance and other tricks is strictly forbidden. Injected service objects are not “enhanced”, they should be used as they are.
Speaker Bio:
Balazs Zsoldos is the co-founder of Everit. He is the leader of the development of Everit OpenSource Components. Developing Java based solutions is not only his job but also his passion.
He believes in simplicity. That is why he decided to design and build as many simple, but useful goal-oriented modules as he can. As the base of the stack, he chose OSGi.
Balazs does not believe in monoholitic frameworks, therefore all of the sol
Introduction to the JSP technology for creating Java EE Web Applications, according to the MVC design pattern.
Materiale realizzato per il corso di Sistemi Informativi Aziendali del Politecnico di Torino - http://bit.ly/sistinfo
Java Server Faces (JSF) is a Java web development framework that provides reusable UI components and a component-based MVC architecture. Key aspects of JSF include:
- Clean separation of behavior and presentation using a component-based MVC model.
- Standard UI components and events tied to server-side code.
- Typical JSF applications include JavaBeans for state/behavior, event-driven development, and JSP view pages that reference a component tree.
The example JSF calculator application demonstrates:
1) Configuring the Faces servlet and managed beans.
2) Developing a model class and controller to mediate between the view and model.
3) Creating
The document discusses strategies for documenting software from the trenches. It provides examples of documentation tools, drivers of documentation like community involvement and leadership commitment, and qualities of good documentation like simple explanations, comprehensive coverage, and well-chosen examples. It also notes similarities between documenting and teaching.
The document describes a proposed design for a Page Object API that provides reusable component models ("Generic UXD Legos") to reduce boilerplate code when implementing page objects. Key aspects include:
1. Defining interfaces for common UI components like Loadable, Expandable, along with associated state beans, builders, and configuration beans.
2. Using inheritance, polymorphism and generics to allow components to be extended and customized while maintaining a consistent API.
3. Providing default implementations that can be overridden as needed, along with mechanisms for dynamic configuration based on test environment.
4. Describing how new component types can be added by following a "recipe" for specification, design, and implementation.
Workflow functional concept on openerp7Aziza Mohamed
The document discusses workflow functionality in OpenERP 7. It defines workflow as describing the evolution of documents over time through defined states and transitions. It provides an example of a holiday request approval workflow and steps for customizing it, including modifying states, activities, and transitions in the XML file. It also discusses how to hide buttons and control approvals based on user attributes like job role.
Java Server Faces + Spring MVC FrameworkGuo Albert
This document discusses the architecture of a Java Server Faces application integrated with the Spring MVC framework. It describes the presentation and business tiers, including the front controller, UI components, backing beans, views, service beans, and configuration files like web.xml, faces-config.xml, and applicationContext.xml. It also includes class diagrams and details the page flow and configuration of the demo application.
Introduction to Everit Component Registry - B Zsoldosmfrancis
OSGi Community Event 2014
Abstract:
Everit Component Registry is an amazingly simple yet powerful new open source Component Model. The primary goal of its concept is to allow more configuration options via Configuration Admin and by doing that, offer an alternative to the de-facto standard, whiteboard pattern.
The implementation of Everit Component Registry is in progress. The goal of the session is to
show the status of the project
talk about all the ideas that came up till now
collect about new ideas and weaknesses with the help of the audience
See the most important parts of the concept below:
Configuration via Configuration Admin The concept is similar to Declarative Services. Every configuration should be done via Configuration Admin.
Reference clauses Instead of a simple OSGi filter, references of these components can be configured with clause(s). By doing that it is possible to specify attributes of the binding on the consumer side. The OSGi filter is only a directive of the clause. E.g.: Imagine a ServletContext component that accepts Servlet OSGi services. A clause that selects a servlet can be the following:
myServlet;filter:=(...);mapping=/my/*;init_param1=value1
Cardinality The following cardinalities are supported: 0..1, 1..1, 0..N, 1..N. The choice must be made in the source code. In case of 0..1 and 1..1 cardinality, the type of the clause configuration property is String. In case of 0..N and 1..N the type is String[].
Optionality There is no optional support like in Declarative Services. In case the cardinality is 0..1 or 0..N, it can be configured via Configuration Admin if a service should be picked up or not. In case one ore more clause is defined via ConfigAdmin, all of the clauses must be satisfied.
Dynamism If it is allowed by the programmer of the component, the reference can be updated without restarting the component instance.
Programmability Sub-status and message can be dropped from activate() and deactivate() methods. By doing that, it is possible to get more information in the console about the state of the component (E.g.: unsatisfied programmatic requirements).
New component classes and already instantiated objects can be registered programmatically. By doing that, existing Component Model logic can be mixed with the new concept.
Avoiding magic Using proxy instances, bytecode manipulation, runtime inheritance and other tricks is strictly forbidden. Injected service objects are not “enhanced”, they should be used as they are.
Speaker Bio:
Balazs Zsoldos is the co-founder of Everit. He is the leader of the development of Everit OpenSource Components. Developing Java based solutions is not only his job but also his passion.
He believes in simplicity. That is why he decided to design and build as many simple, but useful goal-oriented modules as he can. As the base of the stack, he chose OSGi.
Balazs does not believe in monoholitic frameworks, therefore all of the sol
Introduction to the JSP technology for creating Java EE Web Applications, according to the MVC design pattern.
Materiale realizzato per il corso di Sistemi Informativi Aziendali del Politecnico di Torino - http://bit.ly/sistinfo
Java Server Faces (JSF) is a Java web development framework that provides reusable UI components and a component-based MVC architecture. Key aspects of JSF include:
- Clean separation of behavior and presentation using a component-based MVC model.
- Standard UI components and events tied to server-side code.
- Typical JSF applications include JavaBeans for state/behavior, event-driven development, and JSP view pages that reference a component tree.
The example JSF calculator application demonstrates:
1) Configuring the Faces servlet and managed beans.
2) Developing a model class and controller to mediate between the view and model.
3) Creating
The document discusses strategies for documenting software from the trenches. It provides examples of documentation tools, drivers of documentation like community involvement and leadership commitment, and qualities of good documentation like simple explanations, comprehensive coverage, and well-chosen examples. It also notes similarities between documenting and teaching.
Dokumen ini membahas empat kebebasan pokok manusia yang perlu diusahakan untuk masa depan, yaitu: kebebasan berbicara dan berpendapat, kebebasan beribadah, kebebasan dari kekurangan ekonomi, dan kebebasan dari takut yang ditujukan untuk mengurangi persenjataan di seluruh dunia.
Dokumen tersebut membahas tentang pengalamatan jaringan pada tiga lapisan, yaitu:
1) Alamat fisik (MAC address) yang unik pada setiap kartu jaringan
2) Alamat IP yang mengidentifikasi setiap host di jaringan
3) Teknik subnetting dan masking untuk membagi jaringan besar menjadi subnet lebih kecil untuk memudahkan manajemen
Dokumen ini membahas tentang hubungan antara Islam dan ilmu pengetahuan. Ia menjelaskan bahwa ilmu pengetahuan dalam Islam adalah alat untuk mendekatkan diri kepada Allah dan mengangkat martabat manusia. Iman dan ilmu pengetahuan saling melengkapi untuk mengembangkan kemajuan umat manusia. Dokumen ini juga membahas tentang sumber ilmu pengetahuan dalam Islam, kedudukan akal, dan konsep ijtihad dalam konteks il
La Unión Europea ha acordado un embargo petrolero contra Rusia en respuesta a la invasión de Ucrania. El embargo prohibirá las importaciones marítimas de petróleo ruso a la UE y pondrá fin a las entregas a través de oleoductos dentro de seis meses. Esta medida forma parte de un sexto paquete de sanciones de la UE destinadas a aumentar la presión económica sobre Moscú y privar al Kremlin de fondos para financiar su guerra.
This document provides information about upcoming science assignments and tests. It lists materials needed for an experiment involving mass and includes review questions covering topics like the pH scale, chemical bonds, and states of matter. It also notes that a "Last Look" assignment is due on Friday to review for the final exam, which will be on June 1st and 4th, with period 3 taking it on the 5th. Students are reminded to complete Binder Check #4 by the start of class on June 1st and to take 1/2 page of notes on what to know for the chemistry final.
This document provides an assignment log and instructions for students. It lists assignments that are due on certain dates, including observing solids, liquids and gases, completing power notes on phases of matter, and reviewing daily assignments. It also provides a summary of key points about the phases of matter, including that solids have a definite shape and volume, liquids flow to fill their container, and gases expand freely. It describes phase changes like melting, freezing, evaporation and condensation in terms of energy being added or removed.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
The document defines key photography terminology including shutter speed, ISO, aperture, depth of field, automatic and manual exposure, color balance, composition, the rule of thirds, complementary colors, analogous colors, and macro photography. It provides explanations of what each term is used for and examples.
Mummification is a 40-day process that the Egyptians used to preserve bodies for the afterlife. They removed internal organs and stored them in Canopic jars, with each organ corresponding to a different animal-headed jar. Mummies were buried with personal items and sometimes pets to accompany them in the afterlife, and placed inside pyramids along with everything needed for the next life.
The document provides a schedule and information for an upcoming chemistry final exam. It lists the dates of exam parts and assignments that are due, including completing a last review on June 1st, submitting binder check #4 on June 1st, and taking exam part 2 for period 3 only on June 5th. It also provides review questions to study for the exam.
Este documento presenta un resumen del drama Las Brujas de Salem de Arthur Miller. Describe la escena inicial, ubicada en la habitación del Reverendo Parris en Salem, Massachusetts en 1692, donde Parris se encuentra arrodillado junto a la cama de su hija Betty, quien yace enferma. Además, proporciona información sobre la fidelidad histórica de la obra y una lista de los personajes principales.
This document discusses internationalization and localization. Internationalization is the process of making applications adaptable to different languages and regions, while localization is the process of translating an application for a specific locale. Reasons for internationalization include differences in language, currency, and date/time formats across locales. The document outlines internationalization elements like captions, dates, numbers, percentages that require formatting. It also discusses the Unicode standard, use of properties files and ResourceBundles for localization, Locale class for specifying locales, and MessageFormat for variable text formatting.
This document discusses how to write language compilers. It describes several tools that can be used to write compilers, including ANTLR, YACC, JAVACC, and others. It provides examples of defining tokens, parser tree classes, parser logic, and creating parser classes when writing a compiler for a language.
This document provides a schedule and instructions for chemistry students for the final weeks of the semester. It outlines assignments and exam dates, including completing a study guide called "A Last Look" to be turned in on June 1st, taking the chemistry final exam on June 4th and 5th, and having their binders checked for organization. Students are instructed to use provided resources and ask questions if unclear on assignment details.
This document summarizes a research study that used an artificial neural network to forecast monthly oil palm yields based on weather variables. The study developed a feed forward neural network model with backpropagation learning. It analyzed data from 2005-2009 that included yield and weather variables like rainfall, temperature, and humidity. The best performing model included 60 input neurons, 5 hidden layers, and 1 output neuron. This model achieved a mean absolute error of 0.5346 and mean squared error of 0.4707 in testing, demonstrating the potential of neural networks for oil palm yield forecasting based on weather factors.
The document discusses the energy dilemma facing humanity. It notes that humans uniquely have the ability to control fire, which allowed our ancestors to dominate other species. However, our present patterns of energy use from fossil fuels are unsustainable and have unintended consequences like pollution, climate change, and health impacts. The document advocates for more distributed, renewable energy systems that are owned and controlled locally using technologies scaled to communities' needs. This would help reduce energy waste and pollution while empowering people over their energy choices.
Web Service Composition mit WS-BPEL und dem Open-Source-OrchesterTammo van Lessen
The document discusses Web Service Composition using WS-BPEL and the open-source Apache ODE BPEL engine. It provides an overview of WS-BPEL, including its capabilities, foundations in web services standards, activities, partner links, properties, fault handling, compensation, modeling styles, extensions, and the Eclipse BPEL Designer and BPELUnit open source projects. It also demonstrates Apache ODE and running BPELUnit tests.
This document provides summaries of various BPEL activities including assign, assert, bind entity, compensate, compensate scope, create entity, email, flow, for each, if, invoke, partner link, pick, reply, rethrow, and scope activities. It describes the purpose and functionality of each activity.
Dokumen ini membahas empat kebebasan pokok manusia yang perlu diusahakan untuk masa depan, yaitu: kebebasan berbicara dan berpendapat, kebebasan beribadah, kebebasan dari kekurangan ekonomi, dan kebebasan dari takut yang ditujukan untuk mengurangi persenjataan di seluruh dunia.
Dokumen tersebut membahas tentang pengalamatan jaringan pada tiga lapisan, yaitu:
1) Alamat fisik (MAC address) yang unik pada setiap kartu jaringan
2) Alamat IP yang mengidentifikasi setiap host di jaringan
3) Teknik subnetting dan masking untuk membagi jaringan besar menjadi subnet lebih kecil untuk memudahkan manajemen
Dokumen ini membahas tentang hubungan antara Islam dan ilmu pengetahuan. Ia menjelaskan bahwa ilmu pengetahuan dalam Islam adalah alat untuk mendekatkan diri kepada Allah dan mengangkat martabat manusia. Iman dan ilmu pengetahuan saling melengkapi untuk mengembangkan kemajuan umat manusia. Dokumen ini juga membahas tentang sumber ilmu pengetahuan dalam Islam, kedudukan akal, dan konsep ijtihad dalam konteks il
La Unión Europea ha acordado un embargo petrolero contra Rusia en respuesta a la invasión de Ucrania. El embargo prohibirá las importaciones marítimas de petróleo ruso a la UE y pondrá fin a las entregas a través de oleoductos dentro de seis meses. Esta medida forma parte de un sexto paquete de sanciones de la UE destinadas a aumentar la presión económica sobre Moscú y privar al Kremlin de fondos para financiar su guerra.
This document provides information about upcoming science assignments and tests. It lists materials needed for an experiment involving mass and includes review questions covering topics like the pH scale, chemical bonds, and states of matter. It also notes that a "Last Look" assignment is due on Friday to review for the final exam, which will be on June 1st and 4th, with period 3 taking it on the 5th. Students are reminded to complete Binder Check #4 by the start of class on June 1st and to take 1/2 page of notes on what to know for the chemistry final.
This document provides an assignment log and instructions for students. It lists assignments that are due on certain dates, including observing solids, liquids and gases, completing power notes on phases of matter, and reviewing daily assignments. It also provides a summary of key points about the phases of matter, including that solids have a definite shape and volume, liquids flow to fill their container, and gases expand freely. It describes phase changes like melting, freezing, evaporation and condensation in terms of energy being added or removed.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
The document defines key photography terminology including shutter speed, ISO, aperture, depth of field, automatic and manual exposure, color balance, composition, the rule of thirds, complementary colors, analogous colors, and macro photography. It provides explanations of what each term is used for and examples.
Mummification is a 40-day process that the Egyptians used to preserve bodies for the afterlife. They removed internal organs and stored them in Canopic jars, with each organ corresponding to a different animal-headed jar. Mummies were buried with personal items and sometimes pets to accompany them in the afterlife, and placed inside pyramids along with everything needed for the next life.
The document provides a schedule and information for an upcoming chemistry final exam. It lists the dates of exam parts and assignments that are due, including completing a last review on June 1st, submitting binder check #4 on June 1st, and taking exam part 2 for period 3 only on June 5th. It also provides review questions to study for the exam.
Este documento presenta un resumen del drama Las Brujas de Salem de Arthur Miller. Describe la escena inicial, ubicada en la habitación del Reverendo Parris en Salem, Massachusetts en 1692, donde Parris se encuentra arrodillado junto a la cama de su hija Betty, quien yace enferma. Además, proporciona información sobre la fidelidad histórica de la obra y una lista de los personajes principales.
This document discusses internationalization and localization. Internationalization is the process of making applications adaptable to different languages and regions, while localization is the process of translating an application for a specific locale. Reasons for internationalization include differences in language, currency, and date/time formats across locales. The document outlines internationalization elements like captions, dates, numbers, percentages that require formatting. It also discusses the Unicode standard, use of properties files and ResourceBundles for localization, Locale class for specifying locales, and MessageFormat for variable text formatting.
This document discusses how to write language compilers. It describes several tools that can be used to write compilers, including ANTLR, YACC, JAVACC, and others. It provides examples of defining tokens, parser tree classes, parser logic, and creating parser classes when writing a compiler for a language.
This document provides a schedule and instructions for chemistry students for the final weeks of the semester. It outlines assignments and exam dates, including completing a study guide called "A Last Look" to be turned in on June 1st, taking the chemistry final exam on June 4th and 5th, and having their binders checked for organization. Students are instructed to use provided resources and ask questions if unclear on assignment details.
This document summarizes a research study that used an artificial neural network to forecast monthly oil palm yields based on weather variables. The study developed a feed forward neural network model with backpropagation learning. It analyzed data from 2005-2009 that included yield and weather variables like rainfall, temperature, and humidity. The best performing model included 60 input neurons, 5 hidden layers, and 1 output neuron. This model achieved a mean absolute error of 0.5346 and mean squared error of 0.4707 in testing, demonstrating the potential of neural networks for oil palm yield forecasting based on weather factors.
The document discusses the energy dilemma facing humanity. It notes that humans uniquely have the ability to control fire, which allowed our ancestors to dominate other species. However, our present patterns of energy use from fossil fuels are unsustainable and have unintended consequences like pollution, climate change, and health impacts. The document advocates for more distributed, renewable energy systems that are owned and controlled locally using technologies scaled to communities' needs. This would help reduce energy waste and pollution while empowering people over their energy choices.
Web Service Composition mit WS-BPEL und dem Open-Source-OrchesterTammo van Lessen
The document discusses Web Service Composition using WS-BPEL and the open-source Apache ODE BPEL engine. It provides an overview of WS-BPEL, including its capabilities, foundations in web services standards, activities, partner links, properties, fault handling, compensation, modeling styles, extensions, and the Eclipse BPEL Designer and BPELUnit open source projects. It also demonstrates Apache ODE and running BPELUnit tests.
This document provides summaries of various BPEL activities including assign, assert, bind entity, compensate, compensate scope, create entity, email, flow, for each, if, invoke, partner link, pick, reply, rethrow, and scope activities. It describes the purpose and functionality of each activity.
This document summarizes a presentation on Eclipse BPEL Designer for modeling SOA-based business processes. It introduces BPEL concepts like partner links, variables, correlation, and fault handling that are realized in the tool. It also discusses the tool's recent features, relationships to other Eclipse projects, and integration with the Apache ODE runtime for deploying and running BPEL processes. A demo is shown of modeling a "Hello World" BPEL process and deploying it to an ODE server.
This document summarizes a presentation on Eclipse BPEL Designer and SOA-based business integration using Eclipse. The presentation introduces BPEL (Business Process Execution Language) concepts like partner links, variables, correlation, and fault handling. It demonstrates how these concepts are realized in the Eclipse BPEL Designer tool. It also shows how the tool integrates with the Apache ODE runtime to allow modeling, deploying, and running BPEL processes.
The document provides an overview of Oracle SOA Suite, which integrates capabilities like messaging, service discovery, orchestration, web services management and security, business rules, events framework, and business activity monitoring. It leverages standards like SCA, SDO, and BPEL and brings together components like BPEL, ESB, and OWSM into a single environment using SCA composites. The key benefits of SOA Suite include interoperability, increased reuse, more agile business processes, improved visibility, and reduced maintenance costs.
This document section describes how to handle faults in a BPEL process. It discusses two categories of faults - business faults, which are application specific, and runtime faults, which result from problems running the BPEL process. It provides examples of fault handlers and how to catch faults, throw faults, and access fault details. It also lists several standard BPEL faults and their definitions.
This document section describes how to handle faults in a BPEL process. It discusses two categories of faults - business faults, which are application specific, and runtime faults, which result from problems running the BPEL process. It provides examples of specific runtime faults like bindingFault and remoteFault. It also explains how to define fault handlers to catch faults by name and variable and process them.
The document provides instructions for migrating configurations from ABB REL670 1.1 to REL670 1.2.3 using the IED Configuration Migration tool in PCM600 Ver. 2.x. The migration process exports the existing project, imports it into PCM600, and uses ICM to migrate individual IED configurations. This results in obsolete functions being removed and versioned functions being updated. The summary provides details on functions affected and any reengineering required. The instructions then outline reengineering steps for application configuration, parameters, SCL engineering, communication configuration, graphical displays, and signal matrix to complete the migration.
The document describes creating a "HelloWorld" SOA application using BPEL and NetBeans. It involves:
1) Designing a BPEL process to concatenate a received input string with "Hello" and return the result.
2) Creating a composite application that calls the BPEL process, passing an input string and receiving the output.
3) Testing the composite application by running a test case that passes "World!" as input and verifies the output is "Hello World!"
]project-open[ Workflow Developer Tutorial Part 2Klaus Hofeditz
The document provides an overview of a sample workflow for EDI message development at a company called ABC. It describes the EDI message development process, roles and assignments in the workflow, how the workflow is implemented in the project management software, and how to test the workflow interactively. The workflow models the standard process which involves business analysis, message development, quality checks, testing, approval, and release.
Introduction to business process execution languagesuranisaunak
This document provides an introduction to Business Process Execution Language (BPEL). It discusses what BPM and SOA are and how BPEL fits into these approaches. BPEL allows processes to be defined using XML that can integrate multiple web services. Key components of BPEL include activities to receive, assign, invoke and reply to messages. The document also summarizes Oracle BPEL Process Manager, a tool for developing, deploying and managing BPEL processes.
Interacting with bpel_workflow_from_oracle_forms_11gAlex Reichman
This white paper demonstrates how an Oracle Forms application can interact with the BPEL workflow engine in 3 or less sentences. It shows integrating a Java class with Forms to query and complete tasks assigned to a user. The class retrieves task details to populate the form and allows approving or rejecting expenses. Email notifications are configured to inform the user of new tasks and employees of request statuses.
]project-open[ Workflow Developer Tutorial Part 3Klaus Hofeditz
The document provides an overview of customizing the ]project-open[ workflow tutorial. It describes how to add a customer satisfaction survey panel to a workflow transition. It also discusses how to create custom workflow panels using TCL pages and how to programmatically assign tasks to project administrators using callbacks and SQL queries.
Bpm 10 g usage guidelines to upgrade to bpm 12cPablo Sagarna
This document provides guidelines for Oracle BPM 10g customers to facilitate migrating their projects to Oracle BPM 12c. It outlines key areas where process models or implementations may need manual changes for migration, such as replacing process creation/termination wait activities with events, migrating groups to subprocesses, and migrating interactive activities implemented as methods or components to user tasks. The document advises customers to minimize use of features that may not directly migrate like complex variable types, separated instance variables, and scripted automatic activities to ease migration efforts. Adherence to the guidelines will help produce process models more compatible with BPMN 2.0 and Oracle BPM 12c.
The document discusses implementing a RESTful web service using Mule ESB. It explains how to configure Mule ESB to function as a RESTful endpoint without using the built-in REST component. It provides an example of a Mule flow that exposes a REST endpoint on localhost port 8081. The flow accepts query parameters, transforms them to XML using a Maps to XML component, and returns the XML response.
This document discusses implementing a RESTful web service using Mule ESB. It provides an example of creating a RESTful endpoint without using Mule's built-in REST component. The endpoint is configured to listen on localhost port 8081 and return XML data when a request is made to the /rest path with URL parameters. The example demonstrates converting the parameters to XML using Mule transformers.
This document discusses implementing a RESTful web service using Mule ESB. It explains how to configure Mule ESB to function as a RESTful endpoint without using the built-in REST component. The HTTP endpoint is configured for request-response and to listen on localhost port 8081. Parameters passed in the URL are mapped to XML using transformers. The example shows a request to the service returning a XML response with the name and age parameters.
The document provides an overview of the changes and new features coming in Ember.js 2.0. Key points include:
- Ember 2.0 will remove deprecated features and simplify concepts like views and controllers. It shifts the framework to a component-driven architecture.
- New features in upcoming versions like 1.13 include the Glimmer rendering engine, closure actions, and attribute syntax for components.
- Major changes include removing Ember.View and Ember.Select in favor of components, simplifying handlebars scoping, and transitioning to instance initializers.
- The changes are aimed at stability, performance, and simplification while allowing incremental adoption and migration from older codebases.
This document provides guidelines for statistical and machine learning models. It recommends defining the goal by determining whether prediction or inference is needed. Supervised models are recommended if the response is present in the data, and unsupervised models if the response is not present. Regression is used for quantitative responses while classification is for qualitative responses. The document provides guidance on selecting specific algorithms based on characteristics of the data and problem. It also covers assessing model accuracy, improving models, and addressing trade-offs between flexibility, interpretability, bias, and variance.
Developing modular systems is not easy, in fact, you can consider modularity in a maturity grade, that starts with just data encapsulation, to extensibility, to infrastructure building. This presentation shows how the OSGi technology helps us achieve this, shows how it was used for the Oracle Event Processing product.
This document discusses event processing and big data. It begins with an introduction to complex event processing (CEP) including key concepts like event streams and windows. It then covers big data scenarios where CEP can be used to analyze large volumes and varieties of event data in real-time. The document also provides an overview of the Oracle CEP architecture and how it can integrate with big data technologies like Hadoop.
The document discusses a general extension system for event processing languages. It presents two scenarios that demonstrate how to blend the Continuous Query Language (CQL) with other languages like Java and Oracle Spatial. The proposed architecture includes a type registry and language extensions that allow CQL to interface with other languages while remaining agnostic to language specifics. This achieves extensibility while keeping CQL highly descriptive.
The document discusses the building blocks and design patterns for complex event processing including events, streams, relations and operators. It defines events, streams and relations, and describes common operator patterns such as event filtering, new event detection, event partitioning, event enrichment, event aggregation, and event correlation. The design patterns are illustrated with examples of processing stock market event streams.
OSGi is a module system and service platform for Java that provides a dynamic and flexible environment for developers. It allows software to be organized into independent bundles that can be updated without restarting the entire system. Bundles define their dependencies and interfaces, and services allow bundles to collaborate by providing and consuming functionality. The OSGi framework handles loading, dependency management, and lifecycle of bundles, and provides a service registry for bundles to publish and discover services. OSGi addresses the need for a modular architecture in large Java applications and enables continuous software evolution.
The document discusses the OSGi technology, which provides a dynamic module system for Java called bundles. It was created to address problems in developing software for devices with varying hardware, APIs, and capabilities. The OSGi framework provides a portable Java environment, service management to decouple interfaces from implementations, and dynamic installation/uninstallation of bundles. It aims to be lightweight. OSGi services provide additional functions like configuration, logging, and protocols to support application development on the OSGi platform.
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BPEL4WS 1.1 To WS-BPEL 2.0 - An SOA
Migration Path
BPEL4WS V1.1 is a public draft release of the "Business Process Execution Language for Web Services"
specification dated May 3, 2003. BPEL4WS V1.1 is arguably the de facto standard for Business Process
Management (BPM); however, because it's a draft release, BPEL4WS V1.1 has several shortcomings that
will be addressed by the next release of the specification (named WS-BPEL 2.0), which is targeted to be
released either toward the end of this year or during the beginning of 2006.
WS-BPEL 2.0, henceforth referenced as BPEL 2.0, is considerably
different from the previous V1.1 draft release. The article will
address these changes and demonstrate how to attempt to migrate a
V1.1 business process to be compatible with a BPEL 2.0 engine.
Sometimes this migration is simple and can be accomplished by
means of syntactic changes to the process; sometimes the migration
is not so easy, and mostly results in the rewrite of the process or
process fragment. We will start with the simple cases and move
toward the more complicated ones.
It is not the intention of this article to explain BPEL 1.1 or to explain the new features of BPEL 2.0, so it
is highly recommended that the reader have a good familiarity with the BPEL language.
BPEL 1.1 Features That No Longer Exist
We will first address those features that have been removed from BPEL 1.1. The concept of "partner" is
no longer available for BPEL 2.0. A "partner" groups several "partnerLinks," and in doing so represents a
common endpoint. Aside from being descriptive, the "partner" concept did not have any executable
property, so it was decided that the language did not need this concept.
The XML element "compensationHandler" and the XML attribute "enableInstanceCompensation" in the
top-level "process" element have been removed. Instance (process) level compensation handlers never
had any mechanism for being invoked; therefore, because they could not be used instance level
compensation handling is no longer supported.
Since it is very unlikely that any BPEL 1.1 engine made use of either of these concepts, it is generally safe
enough to just remove them from the process definition when migrating to BPEL 2.0.
Syntactic Changes
The following changes are just syntactic. You can simply do a simple find-and-replace to migrate to
BPEL 2.0:
Replace the XML attribute "variableAccessSerializable" with "isolated"
Replace the XML tag "terminate" with "exit"
Replace the XML attribute "onMessage" of event handlers with "onEvent"
Move the XML attribute "joinCondition" that is present in BPEL activities to be a child element of
2. "targets," as in the following XML fragment:
<invoke name="settleTrade">
<targets>
<joinCondition>
$buyToSettle and $sellToSettle
</joinCondition>
<target linkName="buyToSettle"/>
</targets>
</invoke>
Replace the XML attribute value "rendezvous" of the attribute "initiate" with the attribute value
"join"
The schema type "tRole" no longer has a child element representing the port type; instead, the port
type is now specified as an attribute directly in the role itself, as demonstrated in the following
fragment:
<plnk:partnerLinkType name="shippingLT">
<plnk:role name="shippingService"portType="shippingServicePT"/>
</plnk:partnerLinkType>
The attribute "portType" of messaging activities such as "receive," "invoke," "reply," "pick," and
"onEvent" is no longer mandatory and can be omitted
The URI used to specify XPath 1.0 as the expression/query language of choice has been changed,
so replace the attribute value "http://www.w3.org/TR/1999/REC-xpath-19991116" of the attributes
"expressionLanguage" and "queryLanguage" with the attribute value
"urn:oasis:names:tc:wsbpel:2.0:sublang:xpath1.0"
In addition to these, the syntax for assignments has been changed, but we will discuss this in a separate
section.
Extensibility of Expression/Query Languages
In BPEL 1.1 expressions are used by switch conditions, while conditions and assignments such as XPath
expressions are constrained as being an XML attribute value. Although this is not generally a problem for
XPath 1.0 expressions, it is awkward for more complex languages such as XPath 2.0 or XQuery 1.0. XML
attributes do not provide enough "real estate" for complicated expressions and also do not allow for the
use of other XML features such as CDATA, or to write XML itself as the expression.
Hence, to allow for better extensibility of BPEL using external languages, the authoring of expressions
and queries are now realized within XML tags (elements) instead of attributes. In practice this means that
the XML attributes "for," "until," "joinCondition," "transitionCondition," "expression," "query," and
"condition" must all be changed to be XML elements, which would then contain the expressions (the
expressions are the former attribute values). The following snippet shows an example of this conversion
for XPath 1.0. Note that the attribute "expressionLanguage" is optional.
<while>
<condition
expressionLanguage="urn:oasis:names:tc:wsbpel:2.0:sublang:xpath1.0">
$itemsShipped < bpws:getVariableProperty('shipRequest','sns:itemsTotal')
</condition>
<sequence>
<!- do something -->
</sequence>
</while>
3. Listing 1 shows an example of a nonstandard usage of XQuery 1.0 as the expression language. BPEL 2.0
has thus far only standardized the usage of XPath 1.0.
Links
Links are used to specify synchronization dependencies between nested activities within a flow. In BPEL
1.1, links could not cross the boundary of structured activities such as "while," "isolated scope," "event
handler," and "compensation handler." In BPEL 2.0, this restriction has been made stronger. Links that
create a reentrant control path in scopes are no longer permitted. The reason for this tightening is to
simplify the semantic of compensation handling. Figure 1 illustrates this banned scenario.
Messaging
Several aspects of messaging for BPEL 1.1 are unspecified. For example, there is no defined behavior for
a process that receives a message for a request-response operation and finishes without replying. In BPEL
2.0, such a scenario would have trigged a new BPEL standard fault called "missingReply" fault.
Another example has to do with event handlers. In BPEL 1.1 global event handlers are enabled as soon as
the process starts, but the specification does not go into details to define exactly what that entails. Would
an event handler instance be executed concurrently with the execution of the start activity that created the
process instance? If so, what if the event handler instance is accessing some variable that would have been
initialized by the start activity? All of these issues are left for the vendor implementation to answer. In
contrast, BPEL 2.0 explicitly states that the global event handler is only enabled after the start activity has
completed its execution, thus decreasing any chances for race conditions. However, what if there are
multiple event handler instances? Do they operate on the same input variable? In BPEL 2.0, an "onEvent"
activity declares its own input variable, hence each event handler instance works with its own local copy
of the input data. The following snippet provides an example of a BPEL 2.0 event handler declaration:
<onEvent partnerLink="eventLink" operation="event1" variable="inputVar"
messageType="tns:eventMessage">
<correlations>
<correlation set="id" initiate="no"/>
</correlations>
<sequence>
<!-do something -->
</sequence>
</onEvent>
BPEL does not allow a process instance to have multiple outstanding replies for the same request-
response operation. This restriction prevents concurrent event handler instances for the same request-
response operations from being supported. BPEL 2.0 solves this problem by allowing "correlationSets" to
be declared in an "onEvent," thereby disambiguating the event handler instances. However, because this is
a common user scenario, it is expected that vendors solved this specification shortcoming of BPEL 1.1 by
providing their own vendor-specific mechanism that will likely differ from the BPEL 2.0 solution.
There is no automatic way of migrating a business process to address these issues. People will have to
understand how the vendor-specific behavior of the BPEL 1.1 engine being used is different from the
BPEL 2.0-compliant behavior and take the appropriate actions. For example, consider the issue of the new
BPEL fault "missingReply." It may be that one vendor-specific behavior prior to BPEL 2.0 was to raise a
vendor-specific fault, i.e., "vendor:myFault," in which case the migration consists of replacing the
vendor-specific fault with the new BPEL standard fault "missingReply."
Compensation Handling
4. Compensation handling is one of the distinguishing features of BPEL. It allows business processes to
support long-running activities.
In BPEL 1.1, a compensation handler is executed with a frozen snapshot of the BPEL variables made at
the time that the compensation handler was installed. In contrast, compensation handlers in BPEL 2.0
work off live data; that is, they use the current value of the BPEL variables. One way of mitigating this
difference by guaranteeing that the BPEL variables are not changed is to declare them local to the scope
that may be compensated.
Compensation handlers declared within isolated scopes are not themselves isolated in BPEL 1.1. This is
changed in BPEL 2.0: compensation handlers within isolated scopes also have isolated behavior. Note
however that the scope and the compensation handler do not share the same isolation domain.
In BPEL 2.0, attempts to invoke the same compensation handler more than once result in a no-op
operation, as a replacement for raising the BPEL standard fault "repeatedCompensation," which has been
removed. This makes sense because it seems unlikely that a business process would have a need to handle
such a fault.
Data Manipulation
Data manipulation has changed significantly in BPEL 2.0. There are two parts to understanding these
changes. First, BPEL 2.0 defines a data model to represent the BPEL variables. Second, BPEL 2.0 defines
rules for mapping this data model to the different languages, such as XPath 1.0.
The BPEL 2.0 data model is based upon XML infoset. Each BPEL variable is conceptually a separate set
of XML documents. In the case of BPEL variables of WSDL message types, each WSDL message part is
mapped into a separate XML document of the set.
BPEL 2.0 data model mapping to XPath 1.0 is simplified, the BPEL XPath extended functions
"getLinkStatus()" and "getVariableData()" were removed, and propagation of application data is done
using XPath variables.
Let's look at the first case. Instead of using "getLinkStatus(linkName)" to access the status of a link, one
can just reference the link directly as an XPath variable, that is, by adding the "$" character to the link
name, as shown in the following fragment:
<joinCondition>
$buyToSettle
</joinCondition>
The same idea applies to accessing BPEL variables. Instead of using "getVariableData(varName,
partName)," one would reference the variable by using the "$varName" convention. However, in case of
variables of WSDL messages, a part is referenced by appending the "." character and the part name to the
variable name, as illustrated in the following snippet:
<assign>
<copy>
<from variable="value"/>
<to>$outputVar.value</to>
</copy>
</assign>
Queries on property aliases also make use of the same concept. In this case, a BPEL predefined variable
5. named "source" must be used to reference the BPEL variable in question, as demonstrated below:
<bpws:propertyAlias propertyName="tns:phoneNumber" messageType="tns:outputMessage">
<bpws:query>$source.value</bpws:query>
</bpws:propertyAlias>
In BPEL 1.1 it is not clear what the result of "getVariableData()" is. Is it an XML document fragment? Is
it just character data? BPEL 2.0 tightens the definition by specifying that the XPath variable referencing a
BPEL variable resolves to the document element of the appropriate XML document. Thus it becomes
clear what can or cannot be accessed in the resulting document. For example, you are able to access the
XML attributes and child elements of a BPEL variable using XPath 1.0 expressions, however you will not
be able to navigate to a parent node to try to access a different WSDL message part using XPath 1.0,
since we have seen that each WSDL message part is contained in a separate XML document. There is one
caveat to this rule: when used in the context of an expression (in contrast to being used in the context of a
query), BPEL variables of simple type return the simple type content itself (character data) instead of the
document element. This is done to simplify common usage scenarios. Listing 2 shows XPath 1.0
expressions being used to access multiple BPEL variables of different Schema types.
Finally, the BPEL "assign" construct itself has changed. Aside from the changes to the "expression" and
"query" attributes that we have seen previously, literal assignments must now be authored within a
"literal" element, as shown below:
<assign>
<copy>
<from>
<literal>
<addr:phoneNumbertype="work">
<addr:countryCode>1</addr:countryCode>
<addr:areaCode>408</addr:areaCode>
<addr:number>570-8000</addr:number>
</addr:phoneNumber>
</literal>
</from>
<to variable="phoneNumber" />
</copy>
</assign>
Conclusion
The issues that have been presented here are not final. Specifically, issues related to data manipulation are
still undergoing changes in the BPEL 2.0 specification to be released. Neither is this article exhaustive in
its listings of migration issues.