org.springframework.jdbc.support

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Package org.springframework.jdbc.support

The classes in this package make JDBC easier to use and reduce the likelihood of common errors.

See:
Description

Interface Summary

DatabaseMetaDataCallback A callback interface used by the JdbcUtils class.

KeyHolder Interface for retrieving keys, typically used for auto-generated keys as potentially returned by JDBC insert statements.

SQLExceptionTranslator Interface to be implemented by classes that can translate between SQLExceptions and our data access strategy-agnostic org.springframework.dao.DataAccessException.

Class Summary

CustomSQLErrorCodesTranslation JavaBean for holding Custom JDBC Error Codes translation for a particular database.

DatabaseStartupValidator Bean that checks if a database has already started up.

GeneratedKeyHolder An implementation of the KeyHolder interface, to be used for holding auto-generated keys as potentially returned by JDBC insert statements.

JdbcAccessor Base class for JdbcTemplate and other JDBC-accessing DAO helpers, defining common properties like DataSource and exception translator.

JdbcUtils Generic utility methods for working with JDBC.

SQLErrorCodes JavaBean for holding JDBC error codes for a particular database.

SQLErrorCodesFactory Factory for creating SQLErrorCodes based on the "databaseProductName" taken from the DatabaseMetaData.

SQLErrorCodeSQLExceptionTranslator Implementation of SQLExceptionTranslator that uses specific vendor codes.

SQLStateSQLExceptionTranslator Implementation of SQLExceptionTranslator that uses the SQLState code in the SQLException.

Exception Summary

MetaDataAccessException Exception indicating that something went wrong during JDBC metadata lookup.

Package org.springframework.jdbc.support Description

The classes in this package make JDBC easier to use and reduce the likelihood of common errors. In particular, they:

Simplify error handling, avoiding the need for try/catch/final blocks in application code.
Present exceptions to application code in a generic hierarchy of unchecked exceptions, enabling applications to catch data access exceptions without being dependent on JDBC, and to ignore fatal exceptions there is no value in catching.
Allow the implementation of error handling to be modified to target different RDBMSes without introducing proprietary dependencies into application code.

This package and related packages are discussed in Chapter 9 of Expert One-On-One J2EE Design and Development by Rod Johnson (Wrox, 2002).