Example usage for org.hibernate.engine.jdbc.dialect.spi DialectResolutionInfoSource DialectResolutionInfoSource

Introduction

In this page you can find the example usage for org.hibernate.engine.jdbc.dialect.spi DialectResolutionInfoSource DialectResolutionInfoSource.

Prototype

DialectResolutionInfoSource

Source Link

Usage

From source file:org.grails.orm.hibernate.support.HibernateDialectDetectorFactoryBean.java

License:Apache License

public void afterPropertiesSet() throws MetaDataAccessException {
    Assert.notNull(dataSource, "Data source is not set!");
    Assert.notNull(vendorNameDialectMappings, "Vendor name/dialect mappings are not set!");

    Connection connection = null;

    String dbName = (String) JdbcUtils.extractDatabaseMetaData(dataSource, "getDatabaseProductName");

    try {/*from   ww w  . ja  va2 s.  c  om*/
        connection = DataSourceUtils.getConnection(dataSource);

        try {
            final DialectFactory dialectFactory = createDialectFactory();
            final Connection finalConnection = connection;
            DialectResolutionInfoSource infoSource = new DialectResolutionInfoSource() {
                @Override
                public DialectResolutionInfo getDialectResolutionInfo() {
                    try {
                        return new DatabaseMetaDataDialectResolutionInfoAdapter(finalConnection.getMetaData());
                    } catch (SQLException e) {
                        throw new CouldNotDetermineHibernateDialectException(
                                "Could not determine Hibernate dialect", e);
                    }
                }
            };
            hibernateDialect = dialectFactory.buildDialect(hibernateProperties, infoSource);
            hibernateDialectClassName = hibernateDialect.getClass().getName();
        } catch (HibernateException e) {
            hibernateDialectClassName = vendorNameDialectMappings.getProperty(dbName);
        }

        if (!StringUtils.hasText(hibernateDialectClassName)) {
            throw new CouldNotDetermineHibernateDialectException(
                    "Could not determine Hibernate dialect for database name [" + dbName + "]!");
        }
    } finally {
        DataSourceUtils.releaseConnection(connection, dataSource);
    }
}

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