Piggyback Connections

OpenOffice.org Developer's Guide

Database Access

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• Architecture
• Example: Querying the Bibliography Database

• Data Sources in OpenOffice.org 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 OpenOffice.org 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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Occasionally, there may already be a connected database row set and you want to use its connection. For instance, if a user has opened a database form. To access the same database as the row set of the form, use the connection the form is working with, not opening a second connection. For this purpose, the com.sun.star.sdb.RowSet has a property ActiveConnection that returns a connection.

Be aware of the fact that the row set owns the connection it uses. That means, once the row set is deleted, the connection is no longer valid.

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