Package org.springframework.jdbc.support

Class SQLErrorCodeSQLExceptionTranslator

java.lang.Object
org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator
org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator
All Implemented Interfaces:
SQLExceptionTranslator
public class SQLErrorCodeSQLExceptionTranslator extends AbstractFallbackSQLExceptionTranslator
Implementation of SQLExceptionTranslator that analyzes vendor-specific error codes. More precise than an implementation based on SQL state, but heavily vendor-specific.

This class applies the following matching rules:

  • Try custom translation implemented by any subclass. Note that this class is concrete and is typically used itself, in which case this rule doesn't apply.
  • Apply error code matching. Error codes are obtained from the SQLErrorCodesFactory by default. This factory loads a "sql-error-codes.xml" file from the class path, defining error code mappings for database names from database meta-data.
  • Fallback to a fallback translator. SQLStateSQLExceptionTranslator is the default fallback translator, analyzing the exception's SQL state only. Since Java 6 which introduces its own SQLException subclass hierarchy, we use SQLExceptionSubclassTranslator by default, which in turns falls back to Spring's own SQL state translation when not encountering specific subclasses.

The configuration file named "sql-error-codes.xml" is by default read from this package. It can be overridden through a file of the same name in the root of the class path (e.g. in the "/WEB-INF/classes" directory), as long as the Spring JDBC package is loaded from the same ClassLoader.

This translator is commonly used by default if a user-provided `sql-error-codes.xml` file has been found in the root of the classpath, as a signal to use this strategy. Otherwise, SQLExceptionSubclassTranslator serves as the default translator as of 6.0.

Author:
Rod Johnson, Thomas Risberg, Juergen Hoeller, Sam Brannen
See Also:

  • Constructor Details

    • SQLErrorCodeSQLExceptionTranslator

      public SQLErrorCodeSQLExceptionTranslator()
      Constructor for use as a JavaBean. The SqlErrorCodes or DataSource property must be set.

    • SQLErrorCodeSQLExceptionTranslator

      public SQLErrorCodeSQLExceptionTranslator(DataSource dataSource)
      Create an SQL error code translator for the given DataSource. Invoking this constructor will cause a Connection to be obtained from the DataSource to get the meta-data.
      Parameters:
      dataSource - the DataSource to use to find meta-data and establish which error codes are usable
      See Also:

    • SQLErrorCodeSQLExceptionTranslator

      public SQLErrorCodeSQLExceptionTranslator(String dbName)
      Create an SQL error code translator for the given database product name. Invoking this constructor will avoid obtaining a Connection from the DataSource to get the meta-data.
      Parameters:
      dbName - the database product name that identifies the error codes entry
      See Also:

    • SQLErrorCodeSQLExceptionTranslator

      public SQLErrorCodeSQLExceptionTranslator(SQLErrorCodes sec)
      Create an SQLErrorCode translator given these error codes. Does not require a database meta-data lookup to be performed using a connection.
      Parameters:
      sec - error codes

  • Method Details

    • setDataSource

      public void setDataSource(DataSource dataSource)
      Set the DataSource for this translator.

      Setting this property will cause a Connection to be obtained from the DataSource to get the meta-data.

      Parameters:
      dataSource - the DataSource to use to find meta-data and establish which error codes are usable
      See Also:

    • setDatabaseProductName

      public void setDatabaseProductName(String dbName)
      Set the database product name for this translator.

      Setting this property will avoid obtaining a Connection from the DataSource to get the meta-data.

      Parameters:
      dbName - the database product name that identifies the error codes entry
      See Also:

    • setSqlErrorCodes

      public void setSqlErrorCodes(@Nullable SQLErrorCodes sec)
      Set custom error codes to be used for translation.
      Parameters:
      sec - custom error codes to use

    • getSqlErrorCodes

      @Nullable public SQLErrorCodes getSqlErrorCodes()
      Return the error codes used by this translator. Usually determined via a DataSource.
      See Also:

    • doTranslate

      @Nullable protected org.springframework.dao.DataAccessException doTranslate(String task, @Nullable String sql, SQLException ex)
      Description copied from class: AbstractFallbackSQLExceptionTranslator
      Template method for actually translating the given exception.

      The passed-in arguments will have been pre-checked. Furthermore, this method is allowed to return null to indicate that no exception match has been found and that fallback translation should kick in.

      Specified by:
      doTranslate in class AbstractFallbackSQLExceptionTranslator
      Parameters:
      task - readable text describing the task being attempted
      sql - the SQL query or update that caused the problem (if known)
      ex - the offending SQLException
      Returns:
      the DataAccessException, wrapping the SQLException; or null if no exception match found

    • customTranslate

      @Deprecated(since="6.1") @Nullable protected org.springframework.dao.DataAccessException customTranslate(String task, @Nullable String sql, SQLException sqlEx)
      Deprecated.
      as of 6.1, in favor of AbstractFallbackSQLExceptionTranslator.setCustomTranslator(org.springframework.jdbc.support.SQLExceptionTranslator)
      Subclasses can override this method to attempt a custom mapping from SQLException to DataAccessException.
      Parameters:
      task - readable text describing the task being attempted
      sql - the SQL query or update that caused the problem (may be null)
      sqlEx - the offending SQLException
      Returns:
      null if no custom translation applies, otherwise a DataAccessException resulting from custom translation. This exception should include the sqlEx parameter as a nested root cause. This implementation always returns null, meaning that the translator always falls back to the default error codes.

    • createCustomException

      @Nullable protected org.springframework.dao.DataAccessException createCustomException(String task, @Nullable String sql, SQLException sqlEx, Class<?> exceptionClass)
      Create a custom DataAccessException, based on a given exception class from a CustomSQLErrorCodesTranslation definition.
      Parameters:
      task - readable text describing the task being attempted
      sql - the SQL query or update that caused the problem (may be null)
      sqlEx - the offending SQLException
      exceptionClass - the exception class to use, as defined in the CustomSQLErrorCodesTranslation definition
      Returns:
      null if the custom exception could not be created, otherwise the resulting DataAccessException. This exception should include the sqlEx parameter as a nested root cause.
      See Also: