下面列出了怎么用org.hibernate.PessimisticLockException的API类实例代码及写法,或者点击链接到github查看源代码。
@Override
public SQLExceptionConversionDelegate buildSQLExceptionConversionDelegate() {
return new SQLExceptionConversionDelegate() {
@Override
public JDBCException convert(SQLException sqlException, String message, String sql) {
final String sqlState = JdbcExceptionHelper.extractSqlState( sqlException );
if ( "40P01".equals( sqlState ) ) {
// DEADLOCK DETECTED
return new LockAcquisitionException( message, sqlException, sql );
}
if ( "55P03".equals( sqlState ) ) {
// LOCK NOT AVAILABLE
return new PessimisticLockException( message, sqlException, sql );
}
// returning null allows other delegates to operate
return null;
}
};
}
@Override
public SQLExceptionConversionDelegate buildSQLExceptionConversionDelegate() {
return new SQLExceptionConversionDelegate() {
@Override
public JDBCException convert(SQLException sqlException, String message, String sql) {
switch ( sqlException.getErrorCode() ) {
case 1205: {
return new PessimisticLockException( message, sqlException, sql );
}
case 1207:
case 1206: {
return new LockAcquisitionException( message, sqlException, sql );
}
}
final String sqlState = JdbcExceptionHelper.extractSqlState( sqlException );
if ( "41000".equals( sqlState ) ) {
return new LockTimeoutException( message, sqlException, sql );
}
if ( "40001".equals( sqlState ) ) {
return new LockAcquisitionException( message, sqlException, sql );
}
return null;
}
};
}
@Override
public JDBCException convert(SQLException sqlException, String message, String sql) {
final String sqlState = JdbcExceptionHelper.extractSqlState( sqlException );
final int errorCode = JdbcExceptionHelper.extractErrorCode( sqlException );
if ( sqlState != null ) {
String sqlStateClassCode = JdbcExceptionHelper.determineSqlStateClassCode( sqlState );
if ( sqlStateClassCode != null ) {
if ( SQL_GRAMMAR_CATEGORIES.contains( sqlStateClassCode ) ) {
return new SQLGrammarException( message, sqlException, sql );
}
else if ( INTEGRITY_VIOLATION_CATEGORIES.contains( sqlStateClassCode ) ) {
final String constraintName = getConversionContext()
.getViolatedConstraintNameExtracter()
.extractConstraintName( sqlException );
return new ConstraintViolationException( message, sqlException, sql, constraintName );
}
else if ( CONNECTION_CATEGORIES.contains( sqlStateClassCode ) ) {
return new JDBCConnectionException( message, sqlException, sql );
}
else if ( DATA_CATEGORIES.contains( sqlStateClassCode ) ) {
return new DataException( message, sqlException, sql );
}
}
if ( "40001".equals( sqlState ) ) {
return new LockAcquisitionException( message, sqlException, sql );
}
if ( "40XL1".equals( sqlState ) || "40XL2".equals( sqlState )) {
// Derby "A lock could not be obtained within the time requested."
return new PessimisticLockException( message, sqlException, sql );
}
// MySQL Query execution was interrupted
if ( "70100".equals( sqlState ) ||
// Oracle user requested cancel of current operation
( "72000".equals( sqlState ) && errorCode == 1013 ) ) {
throw new QueryTimeoutException( message, sqlException, sql );
}
}
return null;
}