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README.txt 2013-01-17 5.1 kB 11 weekly downloads
olap4j, release 1.1.0 Contents of this distribution ----------------------------- This is a distribution of olap4j, the open Java API for accessing OLAP data. For version information, see VERSION.txt. For licensing, see LICENSE/NOTICE. For details regarding this release and the changes it introduces, see CHANGES.txt. Olap4j is distributed as four Java JAR libraries. * olap4j-[version].jar Core API, Query Model, Transformation and other auxiliary packages, along with the driver specification. * olap4j-xmla-[version].jar Driver implementation of olap4j for XML/A data sources. It is compatible with Mondrian, Palo, SAP BW and SQL Server 2005+. * olap4j-tck-[version].jar Technology compatibility kit. Consists mostly of JUnit tests. * olap4j-jdk14-[version].jar Olap4j distribution compatible with Java 1.4. Includes the core API and the XML/A driver. Packages and Roadmap ----------------------------- The core API of olap4j version 1.0 is a Long Term Support (LTS) release, but some parts of the olap4j project will remain considered as experimental, thus subject to change in future releases. Core packages ----------------------------- The core packages in olap4j-1.0 are as follows. * org.olap4j.driver.xmla Generic XML/A driver. * org.olap4j.mdx Core objects of the MDX model. * org.olap4j.mdx.parser Parser for the MDX query language. * org.olap4j.metadata Discovery of OLAP servers metadata. * org.olap4j.type System for the core MDX object model and the metadata package. Experimental packages ----------------------------- The following packages are considered experimental and are subject to change. * org.olap4j.query Programmatic Query Model. * org.olap4j.transform Core MDX object model transformation utilities. * org.olap4j.layout Utility classes to display CellSets. * org.olap4j.CellSetListener and all associated classes Event-based system for real time updates of CellSet objects. * org.olap4j.Scenario and all associated classes Statistical simulations module. Dependencies ----------------------------- olap4j requires the following libraries at run time: * lib/olap4j.jar (or lib/olap4j-jdk14.jar if you are running JDK 1.4) If you use the JDK 1.4 compatible jar, you will also need: * lib/retroweaver.jar * lib/retroweaver-rt.jar * lib/asm.jar * lib/asm-commons.jar If you are using the XML/A driver, you will also need: * lib/xercesImpl.jar The TCK requires: * lib/commons-dbcp.jar Building olap4j from source --------------------------- 1. Unzip olap4j-<version>-src.zip. 2. Make sure that you are running JDK 1.7, the JAVA_HOME variable is set, and $JAVA_HOME/bin is on your path. 3. Run a test build: $ ant clean-all dist Writing a simple program ------------------------ You can now write and run a simple program against olap4j. For example, under Java 1.6 or later, import org.olap4j.*; import org.olap4j.metadata.Member; import java.sql.*; Class.forName("org.olap4j.driver.xmla.XmlaOlap4jDriver"); Connection connection = DriverManager.getConnection( "jdbc:xmla:" + "Server=http://example.com:8080/mondrian/xmla"); OlapConnection olapConnection = connection.unwrap(OlapConnection.class); OlapStatement statement = olapConnection.createStatement(); CellSet cellSet = statement.executeOlapQuery( "SELECT {[Measures].[Unit Sales]} ON 0,\n" + "{[Product].Children} ON 1\n" + "FROM [Sales]"); for (Position row : cellSet.getAxes().get(1)) { for (Position column : cellSet.getAxes().get(0)) { for (Member member : row.getMembers()) { System.out.println(member.getUniqueName()); } for (Member member : column.getMembers()) { System.out.println(member.getUniqueName()); } final Cell cell = cellSet.getCell(column, row); System.out.println(cell.getFormattedValue()); System.out.println(); } } Or, if you are using the in-process mondrian driver, include mondrian.jar and its dependencies in your classpath, and change the appropriate lines in the above code to the following: Class.forName("mondrian.olap4j.MondrianOlap4jDriver"); Connection connection = DriverManager.getConnection( "jdbc:mondrian:" + "Jdbc='jdbc:odbc:MondrianFoodMart';" + "Catalog='file://c:/open/mondrian/demo/FoodMart.xml';" + "JdbcDrivers=sun.jdbc.odbc.JdbcOdbcDriver;"); JDK 1.4 ------- This distribution includes a JDK 1.4-compatible library for olap4j. If you are using JDK version 1.4, replace olap4j.jar in your classpath with olap4j-jdk14.jar. # End README.txt
Source: README.txt, updated 2013-01-17

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