e-business Application Solutions on OS/390 Using ... - IBM Redbooks

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Sequential Partitioned Entry sequence VSAM Key sequence VSAM Of course, the JRIO classes can be used in servlets and JavaServer Pages, making it easy to create a Web interface for your MVS datasets. 3.4 CORBA Server on OS/390 3.5 RMI Server on OS/390 Common Object Request Broker Architecture (CORBA) is the standard distributed object architecture developed by the Object Management Group consortium (OMG). Since OMG was founded, its mission has been to define open standards in software development so that objects written by different vendors in different languages, running on any platform, could interoperate in a distributed environment. IBM plans to introduce CORBA for OS/390 as a component of IBM Component Broker for OS/390. Refer to Integrating Java with Existing Data and <strong>Application</strong>s on OS/390, SG24-5142, for more information. Java uses a distributed computing mechanism called Remote Method Invocation (RMI). Using RMI, you can use a remote object on a server from a client, send objects from a client to a server where they can run, and implement easily maintainable, distributed objects across a corporation or Internet. RMI can be used on OS/390 today; however, RMI currently has no security model. The use of RMI should be restricted to secured cooperative environments, such as corporate intranets. Sun will include Internet Inter-ORB Protocol (IIOP) in the next iterations of RMI, so that RMI communications will benefit from the security model of CORBA. Refer to Integrating Java with Existing Data and <strong>Application</strong>s on OS/390, SG24-5142, for more information. 26 e-<strong>business</strong> <strong>Application</strong> <strong>Solutions</strong> on OS/390 Using Java Vol. I
Part 2. Configure Java <strong>Application</strong> Environment on OS/390 In this part we describe the minimum configuration you need on OS/390 to run Java client/server applications. Within the context of this book we assume that you will need a Webserver on OS/390. Of course, you can also build applications by means of your own Java application server on OS/390 that handles the traffic with the clients and the access to files, databases and transactions, but the Webserver will give you many standard features that you otherwise would have to take care of yourself. The latest version of WebAS supports both servlets and JavaServer Pages. You can call Beans from servlets and JSPs that can do anything a regular Java application could do. The configuration for the Webserver is described in Chapter 4, “Configuration of the OS/390 Web Server” on page 29. In this part we also describe the configuration for the latest version of VisualAge for Java: VisualAge for Java, Enterprise Edition for OS/390. VisualAge for Java, Enterprise Edition for OS/390 goes beyond the workstation and adds new features on OS/390. This gives you a true cross-platform development environment for Java specifically supporting the OS/390 developer. 5.2, “VisualAge for Java, Enterprise Edition for OS/390” on page 58 describes the configuration of the OS/390-related components and Chapter 6, “Configuring VisualAge for Java on the Workstation” on page 71 gives you all the details you need in order to set up the workstation to use the OS/390 features, called ET/390. © Copyright IBM Corp. 1999 27
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Figure 45. javaInstall.data File Pa
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Figure 48. Logon to OS/390 Menu Opt
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6.5 Setting Up ET/390 Properties Ta
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Figure 52. Bind Options Select the
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This is equivalent to the Language
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Figure 57. Export a Class File for
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Figure 58. Export a Class File for
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7.1 Design of a Site modifying the
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Figure 63. Left Part of the Toolbar
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Connectivity (JDBC) and Microsoft's
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Figure 71. Specify the TCP/IP Param
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Figure 73. Specify the Local Name o
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However, this problem can be solved
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The CLI INI file is used by JDBC to
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LOWOFFLOAD() HIGHOFFLOAD(8) RETPD(1
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invokes the first JDBC driver that
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jdbc also allows for user/password
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static String DbLocationName = "SC5
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Servlets just hate nulls if referen
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manufacturer = "" ; // Clear fields
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} if (button.equals("SEARCH")) { ou
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statement. You can use SQL comments
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ctx myconn=new ctx(jdbccon); SQLJ u
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When SQLJ encounters an iterator de
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when a next row is available, and a
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connection context, followed by the
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// // ### 2 ### // // In order
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// // ### 1 ### // // In order
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public void doManUpdateScreen(HttpS
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else if (button.equals("SEARCH")) {
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} out.println(" "); out.
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9.2.14 Translating SQLJ Source Code
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Reference. The default is the value
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SAMPLE3.SAMPLE3) - ISOLATION(CS) AC
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2. CJGW itself can also run as an a
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Browser HTTP/HTML Web Server CICS C
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Browser 1. HTML only Browser 2. HTM
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The CICS Gateway for Java incorpora
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Figure 89. CICS Java Gateway Class
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The servlet pulls the data supplied
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10.5.2.6 CICS Server The CICS Serve
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Figure 91. CICS Gateway for Java fo
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-port= - TCP/IP port number for the
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10.5.4.2 Set Up the CICS Client Aft
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java ibm.cics.jgate.test.TestECI jg
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10.5.8 VisualAge for Java Setup to
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The summary of tasks needed to set
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10.6.2.7 Setting Environment Variab
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10.6.3 Running the CICS Gateway for
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Assuming that you have installed th
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BIND THE PROGRAM // //BIND EXEC PGM
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Note that MANU was our driver trans
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10.6.8 Deploy Servlets The servlets
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Figure 100. Manufacturer Ap
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Before you test, make sure your CLA
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Notes: ▌1▐These lines have been
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10.7.2 Looking at the Code for the
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public void service(HttpServletRequ
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8. The .jsp servlet accesses the at
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enables you to edit input and outpu
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The logical outbound message is com
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var mod = new Array(); ▌1▐ var
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HTTP HTML HTTP VarVal URL + Data fr
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a Webserver identification. A Webse
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itso/ibm/ims/BuildParse interface i
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▌1▐The Appc2Ims object is recup
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if (inOut != null) comflag = inOut.
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outines located in hJNIRtns.c. For
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if ( _FBCHECK (fc, CEE ) != ) ??<
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4 Refer to the enclosed disk for th
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-----------------------------------
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} } tmstate.setAppc2ims(null); // T
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%IMS_OUT %# -----------------------
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Client programs can connect to the
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GET( ENABLED ) + SHARE These explan
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eferences. This hashtable, besides
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fromims.characterSet=mqcharset; //
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import java.io.; import com.ibm.rec
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1. The Web browser or servlet code
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Figure 121. Reference HTML Page Win
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Search Search Manufacture
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15.2 Writing JSP Code and Servlets
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function launch(list) { var urlstri
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16.2.1 JSP if (isManAddRequest()) {
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NT OS/390 Bytecode Compiler ET/390
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18.2 Scenario II Both classes are b
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Note: Do not delete the file named
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} } t1 = System.currentTimeMillis()
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20.2.4 Program Monitor Window You c
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Figure 127. Setting the Trace File
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23.2 Other JNI Tips JNIEXPORT void
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public class Jportawt { Frame frame
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Note: For IMS and MQSeries we have
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Menu List Mode Functions Utilities
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A.3.4.3 Configuring DB2 It is beyon
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A.3.4.5 Configuring the VSAM Sample
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For further information on the mode
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Figure 133 on page 314 shows the at
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To keep it generic, we use factorie
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edbook.data.jdbc Business objects,
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{ String password) throws SQLExcept
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eturn the Vector return getDataElem
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append( " (man_name, man_address, m
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Any pointers in this publication to
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D.4 External Publications DB2 for
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IBM Redbook Fax Order Form Please s
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adding a dataset to the search path
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IMW0254E 197 IndexOutOfBoundsExcept
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Lotus Domino Go Webserver for OS/39
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SQLJ (continued) jvm.properties cha
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