Key Service

Apache OpenOffice Developer's Guide

Database Access

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• Architecture
• Example: Querying the Bibliography Database

• Data Sources in Apache OpenOffice API

• DataSources

• The DataSource Service
• Queries

• Adding and Editing Predefined Queries
• Runtime Settings For Predefined Queries
• The SingleSelectQueryComposer
• The SQLQueryComposer

• Forms and Reports
• Document Links
• Tables and Columns

• Connections

• Connecting Through a DataSource
• Connecting Using the DriverManager and a Database URL
• Connecting Through a Specific Driver
• Driver Specifics

• The SDBC Driver for JDBC
• The SDBC Driver for ODBC
• The SDBC Driver for Adabas D
• The SDBC Driver for ADO
• The SDBC Driver for dBase
• The SDBC Driver for Flat File Formats
• The SDBC Driver for Apache OpenOffice Calc Files
• The SDBC Driver for address books
• The SDBC Driver for embedded HSQL databases

• Connection Pooling
• Piggyback Connections

• Manipulating the Data

• The RowSet Service

• Usage
• Events and Other Notifications
• Clones of the RowSet Service

• Statements

• Creating Statements
• Inserting and Updating Data
• Getting Data from a Table

• Result Sets

• Retrieving Values from Result Sets
• Moving the Result Set Cursor
• Using the getXXX Methods
• Scrollable Result Sets
• Modifiable Result Sets
• Update
• Insert
• Delete
• Seeing Changes in Result Sets

• ResultSetMetaData
• Using Prepared Statements
• PreparedStatement From DataSource Queries

• Database Design

• Using DDL to Change the Database Design
• Using SDBCX to Access the Database Design

• Catalog Service
• Table Service
• Column Service
• Index Service
• Key Service
• View Service
• Group Service
• User Service
• The Descriptor Pattern
• Adding an Index
• Creating a User
• Adding a Group

• Using DBMS Features

• Stored Procedures

• Writing Database Drivers

• SDBC Driver
• Driver Service
• Connection Service
• XDatabaseMetaData Interface
• Statements
• Support Scalar Functions

• Open Group CLI Numeric Functions
• Open Group CLI String Functions
• Open Group CLI Time and Date Functions
• Open Group CLI System Functions
• Open Group CLI Conversion Functions

• Handling Unsupported Functionality
• Extending Database Drivers

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The Key service provides the foreign and primary keys behavior through the following properties. The Name property is the name of the key. It could happen that the primary key does not have a name. The property Type contains the kind of the key, that could be PRIMARY, UNIQUE, or FOREIGN, as specified by the constant group com.sun.star.sdbcx.KeyType. The property ReferencedTable contains a value when the key is a foreign key and it designates the table to which a foreign key points. The DeleteRule and UpdateRule properties determine what happens when a primary key is deleted or updated. The possibilities are defined in com.sun.star.sdbc.KeyRule: CASCADE, RESTRICT, SET_NULL, NO_ACTION and SET_DEFAULT.

Key

The following code fragment displays the properties of a given key object:

  // key properties
  public static void printKeyProperties(Object key) throws Exception, SQLException {
      System.out.println("Example printKeyProperties");
      XPropertySet xProp = (XPropertySet)UnoRuntime.queryInterface(XPropertySet.class, key);
      System.out.println("Name: " + xProp.getPropertyValue("Name"));
      System.out.println("Type: " + xProp.getPropertyValue("Type"));
      System.out.println("ReferencedTable: " + xProp.getPropertyValue("ReferencedTable"));
      System.out.println("UpdateRule: " + xProp.getPropertyValue("UpdateRule"));
      System.out.println("DeleteRule: " + xProp.getPropertyValue("DeleteRule"));
  }

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