1.What is EAI ?EAI or Enterprise Applications Integration can be defined as data that can be integrated from disparate applications regardless of the platform, allowing the sharing of business processes amongst multiple organizations. 2.What are the Major categories of EAI? Integration can be at different application layers: Data Level Integration: 1. Batch data transfer, OR 2. On-line propagation of data updates API Level Integration: 1. Data is accessed through published API services Service Method Level Integration: 1. Common services shared by different applications User Interface Level Integration:The controller reacts to the user input. It creates and sets the model. 1. Common user interface (e.g. web based) for unified access to multiple applications. 3.What are the Advantages of EAI? Advantages of EAI solutions are: Streamlines business processes and helps raise organizational efficiency. Real time information access among systems. Maintains information integrity across multiple systems. Speedier transactions at reduced costs. If one of the applications misbehaves and requires to be shut down for maintenance, then with EAI, we can easily ´decoupleµ it from rest of the systems. Which avoids having to bring down other systems. 4.What are the disadvantages of EAI? The main disadvatages of using EAI systems: Constant change: The very nature of EAI is dynamic and requires dynamic project managers to manage their implementation. Lack of EAI experts : EAI requires knowledge of many issues and technical aspects. EAI is a tool paradigm: EAI is not a tool, but rather a system and should be implemented as such. Building interfaces is an art :Engineering the solution is not sufficient. Solutions need to be negotiated with user departments to reach a common consensus on the final outcome. A lack of consensus on interface designs leads to excessive effort to map between various systems data requirements. Loss of detail :Information that seemed unimportant at an earlier stage may become crucial later. Accountability :Since so many departments have many conflicting requirements, there should be clear accountability for the system's final structure. 5.What are the main companies which provide EAI tools / software? TIBCO webMethods Vitria iPlanet MQSeries (IBM) iPlanet BizTalk (Microsoft) WebLogic (BEA) The pipeline starts with the input to the flow service and collects inputs and outputs from subsequent services in the flow. not a product.What Is a Flow Service? A flow service is a service that is written in the webMethods flow language.Elementsinclude folders. It provides an integrated development environment in which to develop the logic and supporting objects that carry out the work of an integration solution. edit. When a service in the flow executes. 12.What are the modules of webMethods Product Suite? Integration and B2B Service Oriented Architecture Business Process Management Business Activity Monitoring 8.What Is a Startup Service? A startup service is one that Integration Server automatically executes when it loads a package into memory. Business Integrator. triggers. services.What Is an Element? An element is an item that exists in the Navigation panel in webMethodsDeveloper. In the Navigation panel. The key products include Integration Server. services. 14. and ISschemas.Elementsinclude folders. and test integration logic. Workflow and Mainframe Integration Server. servers and packages are not considered to be elements. it has access to all data in the pipeline at that point. 10. and ISschemas. IS document types.What are the tools of webMethods Integration ? webMethods Adapters webMethods Developer webMethods Integration Server webMethods Integration Platform webMethods Broker webMethods Monitor webMethods Optimize for Infrastructure webMethods Trading Networks webMethods EDI Module webMethods EDIINT webMethodseStandards Modules webMethods PIM 9. triggers. webMethods is a company.How to invoke a service from a browser ? . specifications. 7.What Is Developer? webMethods Developer is a graphical development tool that you use to build. It allows services in the flow to share data.What Is an Element? An element is an item that exists in the Navigation panel in webMethodsDeveloper. 13. IS document types.What is webMethods? A company that provides integration tools. Enterprise Server. servers and packages are not considered to be elements. 15.What Is the Pipeline? The pipeline is the general term used to refer to the data structure in which input and output values are maintained for a flow service. specifications.6. It also provides tools for testing and debugging the solutions you create. This simple yet powerful language lets you encapsulate a sequence of services within a single service and ma nage the flow of data among them. 11. In the Navigation panel. What happens when the pub. what needs to be done? pub.lang.When creating a BRANCH flow element.cnf file 25.flow:tracePipeline service is invoked? The Integration Server logs the name-value pairs in the pipeline at that time.What is the default behavior.For a REPEAT operation to execute as long as the specified repeat condition remains true.What is the default behavior if a Flow EXIT does not specify a "from"? The EXIT will throw anjava.NullPointerException. "bin\server.xml" file 20. where must such Java classes be placed? webMethods6\IntegrationServer\lib\jars 30. how can a variable of type Document Type be represented in Java? Variable of type Document Type be represented as "IData " 26.flow:savePipeline service? Save the current pipeline to a named memory location on the Integration Server 19. the count parameter needs to be set to: The count parameter needs to be set to "-1 " .flow.What is the Branch operation? Branch operation conditionally executes an operation based on the value of a variable at run time 21. 28.By default.wm.server.flow:tracePipeline service is invoked? The Integration Server logs the name-value pairs in the pipeline at that time 17.How can the webMethods Integration Server logging date format be changed? By editing the watt.What is the primary function of the built-in pub. 32.file:getFile service.What happens when the pub.The Flow Services are physically stored on the webMethods Integration Server in the form of: Flow Services are physically stored on the webMethods Integration Server as "XML" files. in order to use the pub.pack:myFlow" in the "MyPack" package.dateStampFmt parameter in the server.file:getFile does not require any modifications to the Integration Server. what is the purpose of a SEQUENCE operation? The purpose of Sequence operation is to group a subset of Flow operations so that they are treated as a unit.An Integration Server package may have one or more startup services. 29. 31. the webMethods Integration Server has an HTTP listener assigned to which port? 5555 24. Typically.Use a URL in the form: http://servername:port/invoke/folder.bat -debug 9 -log none". .The Integration Server requires access to the Java classes for each JDBC driver that it will use.lang. and a com. if a Flow EXIT does not specify a "from"? $loop will be assumed.subFolder. 27. 33.FlowException will be thrown if the EXIT is not in a LOOP 22. what is the purpose of the "scope" field on the properties tab? To restrict pipeline access to only the data in this document 18. When does a startup service execute? Whenever the package is loaded or re-loaded 23. where will you find the code? In the "MyPack\ns\my\pack\myFlow\flow.After a default installation. what does this tell the server to do? Start in level 9 debug mode and write all server log information to the screen.If the webMethods Integration Server is started with from the server root directory with this command.When creating Flow services.When you create and save the FLOW "my.When coding IS Services.subsubFolder/serviceName (the package name is not part of the URL in any way) 16. 34. 36.How to Find Elements in the Navigation Panel? Just right click on the element ehich u want to see then u click Locate in navigation option then u can see that element in the navigation panel 43.How to Move Flow Steps? Open the webMethods developer in EditPrespective.bat or IntegrationServer/bin/server.right Click on the elemet in developer which is system locked. you can accomplish name transformations and structural transformations.Otherwise use the arrow buttons on the editor pannel to move the selected flow steps.and click on the option find dependents.If u give ACL to administrator then the admin group users who are there in that group they can have the acess to that particular service. 39.Once the server come up or the network problem is resolved.How to Restore a Session on a Server? Developer gets disconnected from the server if the server goes down or if there is a problem in the network. However. 35. As well we can move any service or Map inside a SEQUENCE or BRANCH using "Shift Left and Shift Right" buttons 38.How to open a session on a different server? Select "session" from the menu in toolbar and click open.2 . It will display the server side files for the element.The user name and password on that server.You will find that the element is no more locked.How ACLs Affect locking? ACLS are used to give the authorization to the particular user groups.How do I change the JVM used by Integration Server? To change to the JDK used by webMethods you will need to edit the IntegrationServer\bin\server. 41.Otherwise we can not use it. Donot close the developer.How to use SEQUENCE as the Target of a BRANCH? Set evaluate label property of branch step to true.andchoose the lock properties. 44.4. reordering portions of a message or renaming fields are know as structural transformations 40. Then set the label property of sequence with the value on which it needs to be processed.When and why should we use transformers and flow services? How are they different from each other? Mapping is the process of performing transformations to resolve data representation differences between services or document formats. Edit the file and change the following line to point to the JDK path SET JAVA_DIR=C:\opt\j2sdk1.How to Change the Order of Steps in a Flow Service? We can change the Order of steps in a Flow Service of Various other services which are called in sequence within Flow service using "Shift Up and Shift Down" buttons exists at top of Editor Panel.How to find dependents of a selected element on the server? Right click on the element for which you have to find the dependents in the navigational pannel.How to remove a system lock from an element? System locks can be removed by making the server side files of the element as reda ble. Developer provides two ways for you to invoke services: You can insert INVOKE steps or you can insert transformers onto the Pipeline tab. By linking variables to each other on the Pipeline tab.If you close the developer you wont be able to save the changes. 42.Select the flow step u wanna move jus drag it t to the place u want to move. to perform value transformations you must execute some code or logic.What are Structural transformations ? Splitting one field into several or merging fields.sh file used to start up Integration Server.33. key in the server IP and port on which you have to open the connection. Transformers are the services you use to accomplish value transformations on the Pipeline tab.This is called ACL locking.Make the files as readable and click the referesh button in the developer. you will be automatically connected to the server and then you can retsore your session. 37. bat -debug 10 46. try { // put this section into a cr itical section to ensure single -threaded execution synchronized(LOCK_OBJ) { Execute a flow service using Service. }\ \ 50.doInvoke } idc. Although the underlying code that implements the flow operations is java.How to limit a flow service executed only by one thread at a time? Create a java service Create a private static object on the shared source (private static Object LOCK_OBJ = new Object(). 49. IDataCursoridcResult = null. If you delete a variable that was there because it was previously in the pipeline when you change the view in developer you will see the variable appear again.destroy().How do I sort using the JDBC select adapter service? .What is the difference between drop and delete pipeline variable? Drop pipeline is an explicit cleanup.How do I throw an exception when using a try-catch block ? Set a flag in your catch block or leave a variable holding the error message in the pipeline.logError(exc). It is only of use if you have created a variable that you didn't mean to create.getCursor(). similar to the Integration server: cdpathToWMInstall/Developer/bin developer.destroy(). } catch (Exception exc){ ServerAPI.How do I debug the Developer IDE itself ? Start the developer up in debug mode. 49. Delete is purely a design time operation to remove the variable from the current view. It is a request for the pipeline to remove a variable from the available list of variables and make the object it refers to available for garbage collection by the Java Virtual Machine. it is stored on disk as XML.How to get the current index of the List in a loop? There is a special variable on the pipeline called $iteration which will be incremented as the loop operator works up through the list. 47.destroy(). ) Have the code below on the java service source: IDataCursoridc = pipeline. throw new ServiceException(exc. idcResult. 48.How do I see the java code for my flow service ? Flow is not turned into java code. It resides on disk as XML representing the flow operations which is then parsed and turned into an in-memory java tree of the operations. idc.45. Outside the catch block put a branch on that variable or flag and if it is non-null then exit with failure or call the service that generates the exception.toString()). What is the primary purpose of a Web Service Connector? The purpose of Web Service Connector is to invoke a Web Service on a different web server Startup service will execute whenever the package is loaded or re-loaded 57. 53.TThe Package Management interface of the webMethods IS Administrator can be used to create package dependencies.Although there is no tab to specify "order by" the same functionality is able to be specified in the "SELECT" tab.An Integration Server package may have one or more startup services.FlowException will be thrown if the EXIT is not in a LOOP 55. The reason for this is that tuning the size of the pool becomes quite difficult if you have multiple types of usage of a pool. as your packages should generally be divided up according to functional area too. Otherwise you may get strange errors about transactions and the like.wm. What is the best way to hide the source code of the Java service? Configure an Access Control List which only allows members of authorized groups and assign it as the Read ACL for the service 58.How should I organise connection pools ? If you have adapter notifications and adapter services then you will need to have two separate connections. One of the columns in the is labelled "Sort Order" which will allow you to specify the column(s) you wish to sort by. When does a startup service execute? Startup service will execute whenever the package is loaded or re-loaded 56. You should also avoid having connection pools shared across different functional areas.The Developer was used to create a Java Service named myService in a folder named myFolder in the Default package.. To alter the order: simply alter the order of the columns selected. Package dependencies can be used to:? Ensure that specific webMethods IS packages are loaded before the depending package loads . if exit-on is set to SUCCESS.How to preserve existing pipeline before a restorePipeline step ? Set the "$merge" variable in restorePipeline or "merge" in restorePipelineFromFile to be true. 51. 52. 54.When using the SEQUENCE Flow operation. Typically. not a hard and fast rule though). You are also unable to easily change the database settings for one without impacting on the other.What is the primary function of the built-in pub.flow:savePipeline service? Save the current pipeline to a named memory location on the Integration Server.The Integration Server requires access to the Java classes for each JDBC driver that it will use. 59. and a com. where must such Java classes be placed? Java classes are be placed in webMethods6\IntegrationServer\lib\jars 60. One approach that seems to work quite well is to have separate pools for each package (generally.flow.lang. what condition will cause the entire SEQUENCE to fail? When all of the child operations fail . even if they are pointing to the same database.What is the default behavior if a Flow EXIT does not specify a "from"? $loop will be assumed. This will ensure that everything in the pipeline before a restorePipeline step is preserved.