Chap7.PDF

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재숙 궉
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2 Intranet Data Warehouse : Distributed Networking Computing Peer-to-peer Peer-to-peer:,. C/S Microsoft ActiveX DCOM(Distributed Component Object Model) Sun CORBA(Common Object Request Broker Architecture) OMG(Object Management Group) CORBA IBM, Digital Equipment, HP, Sun Microsystems Sun Intranet DW SMP ( SMP:Symmetric MultiProcessing) SMP : All rights reserved 2

3 Java: (1) OOP Computing Java (the migration of processing from the mainframe to the desktop to the network) Java DW : Client/Universal warehouse (casual users) applet : : Client/Universal warehouse Java Instruction set OS All rights reserved 3

4 Java: (2) Java Java Java Source Source Code Code Java Java Compiler Compiler or or Interpreter Interpreter Java Java Universal Universal Bytecode Bytecode Java Java Virtual Virtual Machine Machine Java Virtual Machine Java OS H/W Key Java OS, Machine-Specific Machine-Specific Instructions Instructions All rights reserved 4

8 JavaBeans: Write once, run everywhere 3-tier / 2-tier JavaBean OS JavaBean Microsoft ActiveX, IBM OpenDoc, Netscape LiveConnect Intranet DW layer : Palettes of JavaBeans objects, All rights reserved 8

9 APIs DW ( ) ( ), 3 / Java API TP Monitors RPC ORB.. Java / OS H/W JDBC(Java Database Connectivity) Java IDL(Interface Definition Language) Java RMI(Remote Method Invocation) JNDI(Java Naming Directory Interface) All rights reserved 9

10 Java Database Connectivity(JDBC)(1) Java RDBMS JDBC-ODBC bridge ODBC JDBC JDBC-ODBC bridge // Connect to the database Class.forName( jdbc.odbc.jdbcodbcdriver ); String myurl = jdbc:odbc:mydatabase ; Connection myconn = DriverManager.getConnection(myURL, myname, mypassword ); // Send SQL to the server java.sql.statement mystmt = myconn.createstatement(); String mysql = SELECT name,address,phone from Person ; ResultSet myresult = mystmt.executequery(mysql); //Get the results while (myresult.next()) { //print the values of each row String name = myresult.getstring( name ); String address = myresult.getstring( address ); String phone = myresult.getstring( phone ); System.out.printLn(name + +address+ +phone); } All rights reserved 10

12 Java Remote Method Invocation(RMI)(1) Java Java, JavaIDL ORB Java RMI RMI 3 Layer Stub/Skeleton Layer Object Serialization:Java, JavaIDL Remote Reference Layer Transport Layer, All rights reserved 12

15 Java Interface Definition Language(JavaIDL JavaIDL) OMG IDL ( ) (IDL) CORBA IDL Java IDL Orbix for C++ : IDL --> C++ OrbixWeb : IDL --> Java IDL Java IDL Java IDL Java module package Long,unsigned long int constant Public static final Long long long boolean boolean float float character char double double octet byte enum,struct,union class String,wstring string Sequence,array array Short,unsigned short short operation method All rights reserved 15

19 What is CORBA? CORBA = the Common Object Request Broker Architecture ORB Life cycle service :,,, Persistence service :, Naming service : (naming systems) DCE, X.500, Sun NIS Event service : Concurrency control service : ORB (lock) Transaction service :, Relationship service : " " Query service : ORB IIOP (Internet Inter-ORB Protocol) (CORBA 2.0 ) All rights reserved 19

22 DW Layer Internet Explorer, Netscape Navigator, HotJava Layer OLAP RDBMS Infospace Intranet Data Warehouse Infospace : Intranet Data Warehouse Java,,, PC, Macintosh, Unix Java Infospace Java Multi-thread CGI Query, All rights reserved 22

Intra_DW_Ch4.PDF

Intra_DW_Ch4.PDF The Intranet Data Warehouse Richard Tanler Ch4 : Online Analytic Processing: From Data To Information 2000. 4. 14 All rights reserved OLAP OLAP OLAP OLAP OLAP OLAP is a label, rather than a technology