Example Oracle OLAP Java API Programs for 11g Release 11.1


Most of the example programs are the complete code for the examples in Oracle OLAP Java API Developer's Guide, 11g Release 1 (11.1), part number B28127-02. One program has the code for some examples in Oracle OLAP Java API Reference, 11g Release 1 (11.1), part number B28128-02.

The example programs create and use metadata objects that are mapped to tables of the Global schema in the relational database. The schema is owned by the GLOBAL user.

You can add the example program classes to your Java development environment and compile and run them if the programs can connect to an Oracle Database instance with the OLAP option that has the Global schema installed. The example programs are in a package organization that you can import into an integrated developement environment such as Oracle JDeveloper.

The example program classes are in a structure that indicates the package of API classes that they exemplify. Extracting the contents of the examples.zip file creates the following directory structure.

examples
  src
    oracle
      olapi
        examples
          cursor
          metadata
          source
          template
          transaction

 

In the remainder of this document, the references to the directory structure begin with the examples.src.oracle.olapi.examples directory.

Note: The BuildAW11g program creates the analytic workspace that is used by most of the other example programs. You must run the BuildAW11g program before you can run any of those other example programs.

 


Required Class Libraries

The following table lists the required JAR files and their locations under the ORACLE_HOME directory in an installation of Oracle Database Enterprise Edition with the OLAP option.

 

File Name Location
  olap_api.jar   /olap/api/lib
  ojdbc5.jar   /jdbc/lib
  xmlparserv2.jar   /lib

 


 

Base and Utility Classes

The following table lists the classes that are in the examples directory. These classes are used by all of the example programs.

 

Class Description
BaseExample11g The base class for all of the example programs. Some of the methods of this class do the following:
  • Put command-line arguments into a Properties object.
  • Create a CursorPrintWriter that displays the output of a program.
  • Execute the example program.
Context11g An instance of this class is created by a BaseExample11g. This class has methods that do the following:
  • Use the command-line properties from the BaseExample11g to connect to an Oracle Database instance.
  • Create or get the MDM metadata objects that are used by most of the example programs and store some of the objects in a HashMap.

This class also has convenience methods for getting metadata objects from the HashMap, for creating Cursor objects, and for displaying the contents of the Cursor objects.

CursorPrintWriter A PrintWriter that has methods for displaying the output of a program, including displaying the values of a Cursor in various formats.
Logger This class encapsulates the logging of output generated by an example program.

 


 

First Example Program to Run

Before running any of the other example programs, first run the BuildAW11g program. It creates metadata objects and builds an analytic workspace. Most of the other example programs use the objects created by this program.

 

Package Class Description
metadata BuildAW11g A program that defines metadata objects, maps them to the Global schema, deploys them to an analytic workspace, writes the metadata object definitions to an XML file, and builds the analytic workspace. Most of the other OLAP Java API example programs query that analytic workspace.

 


 

Examples in Oracle OLAP Java API Reference

The following table lists the classes that have the code for examples that appear in Oracle OLAP Java API Reference.

 

Package Class Description
source RecursiveJoinAndShortcutsExamples This class has the complete code for the examples in the descriptions of the full signature of the Source.recursiveJoin method, of other signatures of recursiveJoin, and of some related Source methods such as selectDescendants and sortDescendingHierarchically.

 


 

Examples in Oracle OLAP Java API Developer's Guide

The tables in this section list the classes that contain the code for the examples in Oracle OLAP Java API Developer's Guide. The tables are organized by chapter and list the examples in the order in which they appear in the documentation.

Examples in Chapter 2

The following table lists the examples that appear in Chapter 2, "Understanding OLAP Java API Metadata", and the example programs that contain the code for the examples.

 

Package Class Description
metadata ElementsOfMdmAttribute Creates a query that produces the results that appear in the table in the "MdmAttribute Class" section.
metadata GettingDataTypeOfMdmSource Example 2-1, Getting the Data Type of an MdmSource.
metadata GettingTypeOfMdmSource Example 2-2, Getting the Type of an MdmSource.

 


 

Examples in Chapter 3

The following table lists the examples that appear in Chapter 3, "Discovering Metadata", and the example program that contains the code for the examples.

 

Package Class Description
metadata ConnectAndDiscover Example 3-1, Getting a JDBC OracleConnection.
Example 3-2, Creating a DataProvider.
Example 3-3, Closing the Connection.
Example 3-4, Creating an MdmMetadataProvider.
Example 3-5, Getting the MdmSchema Objects
Example 3-6, Getting a Single MdmDatabaseSchema.
Example 3-7, Getting the Dimensions and Measures of an MdmDatabaseSchema.
Example 3-8, Getting the Dimensions and Measures of an MdmCube.
Example 3-9, Getting the Hierarchies and Levels of a Dimension.
Example 3-10, Getting the MdmAttribute Objects of an MdmPrimaryDimension.
Example 3-11, Getting a Primary Source for a Metadata Object.

 


 

Examples in Chapter 4

The following table lists the examples that appear in Chapter 4, "Creating Metadata and Analytic Workspaces", and the example program that contains the code for the examples.

 

Package Class Description
metadata CreateMetadataAndAW Example 4-1, Creating an AW.
Example 4-2, Creating and Deploying an MdmStandardDimension.
Example 4-3, Creating and Mapping an MdmDimensionLevel.
Example 4-4, Creating and Mapping MdmLevelHierarchy and MdmHierarchyLevel Objects.
Example 4-5, Creating an MdmBaseAttribute.
Example 4-6, Creating and Mapping an MdmCube.
Example 4-7, Creating and Mapping Measures.
Example 4-8, Committing Transactions.
Example 4-9, Exporting to an XML Template.
Example 4-10, Building an Analytic Workspace.

 


 

Examples in Chapter 5

The following table lists the examples that appear in Chapter 5, "Understanding Source Objects", and the example programs that contain the code for the examples.

 

Package Class Description
source UnderstandingSourceObjects The following examples, and two informal untitled examples, are implemented as methods of this class.

Example 5-1, Getting the Data Type of a Source.
Example 5-2, Using the isSubtypeOf Method.
Example 5-3, Using the join Method To Produce a Source Without an Output.
Example 5-4, Using the join Method To Produce a Source With an Output.
Example 5-5, Using the join Method To Match Source Objects To Inputs.
Example 5-6, Using Shortcuts.
Example 5-7, Matching the Base Source to an Input of the Joined Source.
Example 5-8, Matching an Input of the Base Source to an Output of the Joined Source.
Example 5-9, Matching the Inputs of a Measure and Producing Outputs.

source UsingParamSourceWithMeasDim Example 5-10, Using a Parameterized Source With a Measure Dimension.
source ImplementingExtractAsACustomModel Example 5-11, Implementing the extract Method as a CustomModel.

 


 

Examples in Chapter 6

The following table lists the examples that appear in Chapter 6, "Making Queries Using Source Methods", and the example programs that contain the code for the examples.

 

Package Class Description
source MakingQueriesExamples The following examples are implemented as methods of this class.

Example 6-1, Controlling Input-to-Source Matching With the alias Method.
Example 6-2, Using the distinct Method.
Example 6-3, Using COMPARISON_RULE_REMOVE.
Example 6-4, Using COMPARISON_RULE_DESCENDING.
Example 6-5, Selecting the First and Last Time Elements.
Example 6-7, Selecting a Subset of the Elements of a Source.
Example 6-8, Using the extract Method
Example 6-11, Hierarchical Sorting by Measure Value.

source SortingHierarchicallyByAttribute Example 6-6, Sorting Products Hierarchically By Attribute.
source CreatingCubeAndPivotingEdges Example 6-9, Creating a Cube and Pivoting Its Edges.
source DrillingInHierarchy Example 6-10, Drilling in a Hierarchy.
source GettingShareOfUnits Example 6-12, Getting the Share of Units Sold.
source UsingLagMethod Example 6-13, Using the Lag Method.
source UsingMovingTotalMethod Example 6-14, Using the movingTotal Method.
source SelectingRangeWithNumberParam Example 6-15, Selecting a Range With NumberParameter Objects.

 


 

Examples in Chapter 7

The following table lists the examples that appear in Chapter 7, "Using a TransactionProvider", and the example programs that contain the code for the examples.

 

Package Class Description
transaction TransactionExamples The following examples are implemented as methods of this class.

Example 7-1, Rolling Back a Transaction.
Example 7-2, Using Child Transaction Objects.

 


 

Examples in Chapter 8

The following table lists the examples that appear in Chapter 8, "Understanding Cursor Classes and Objects", and the example programs that contain the code for the examples.

 

Package Class Description
cursor CursorConceptsExamples The following examples, and an informal example, are implemented as methods of this class.

Example 8-1, Creating the querySource Query.
Example 8-2, Setting the CompoundCursor Position and Getting the Current Values.
Example 8-3, Positions in an Asymmetric Query.

 


 

Examples in Chapter 9

The following table lists the examples that appear in Chapter 9, "Retrieving Query Results", and the example programs that contain the code for the examples.

 

Package Class Description
cursor RetrievingQueryResults The following examples are implemented as methods of this class.

Example 9-1, Creating a Cursor.
Example 9-2, Getting a Single Value from a ValueCursor.
Example 9-3, Getting All of the Values from a ValueCursor.
Example 9-4, Getting ValueCursor Objects from a CompoundCursor example.
Example 9-5, Getting Values from a CompoundCursor with Nested Outputs example.
Example 9-6, Navigating For a Table View.
Example 9-7, Navigating For a Crosstab View Without Pages.
Example 9-8, Navigating For a Crosstab View With Pages.
Example 9-9, Getting CursorSpecification Objects for a Source.
Example 9-10, Specifying the Calculation of the Extent of a Cursor.
Example 9-11, Specifying the Calculation of Starting and Ending Positions in a Parent.
Example 9-12, Calculating the Span of the Positions in the Parent of a Value.
Example 9-13, Specifying a Fetch Size.

 


 

Examples in Chapter 10

The following table lists the examples that appear in Chapter 10, "Creating Dynamic Queries, and the example programs that contain the code for the examples.

 

Package Class Description
template TopBottomTemplate Example 10-1, Implementing a Template.

The following examples are implemented as inner classes of TopBottomTemplate.

Example 10-2, Implementing a MetadataState.
Example 10-3, Implementing a SourceGenerator.

template TopBottomTest Example 10-4, Getting the Source Produced by the Template.
template SingleSelectionTemplate A Template that is used by TopBottomTest.

 


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