import org.hibernate.tool.hbm2ddl.SchemaValidator; //导入依赖的package包/类
public void testSchemaTools() throws Exception{
	// database schema have been created thanks to the setUp method
	// we have 2 schemas SA et SB, SB must be set as the default schema
	// used by hibernate hibernate.default_schema SB
	SchemaExport se = new SchemaExport(getCfg());
	se.create(true,true);
	
	// here we modify the generated table in order to test SchemaUpdate
	Session session = openSession();
	Connection conn = session.connection();
	Statement stat = conn.createStatement();
	stat.execute("ALTER TABLE \"SB\".\"Team\" DROP COLUMN name ");
	
	// update schema
	SchemaUpdate su = new SchemaUpdate(getCfg());
	su.execute(true,true);
	
	// we can run schema validation. Note that in the setUp method a *wrong* table
	// has been created with different column names
	// if schema validator chooses the bad db schema, then the testcase will fail (exception)
	SchemaValidator sv = new SchemaValidator(getCfg());
	sv.validate();
	
	// it's time to clean our database
	se.drop(true,true);
	
	// then the schemas and false table.

	stat.execute("DROP TABLE \"SA\".\"Team\" ");
	stat.execute(" DROP SCHEMA sa ");
	stat.execute("DROP SCHEMA sb ");
	stat.close();
	session.close();
}
 

import org.hibernate.tool.hbm2ddl.SchemaValidator; //导入依赖的package包/类
public void testSchemaToolsNonQuote() throws Exception{
	// database schema have been created thanks to the setUp method
	// we have 2 schemas SA et SB, SB must be set as the default schema
	// used by hibernate hibernate.default_schema SB
	SchemaExport se = new SchemaExport(getCfg());
	se.create(true,true);
	
	// here we modify the generated table in order to test SchemaUpdate
	Session session = openSession();
	Connection conn = session.connection();
	Statement stat = conn.createStatement();
	stat.execute("ALTER TABLE \"SB\".\"TEAM\" DROP COLUMN xname ");
	
	// update schema
	SchemaUpdate su = new SchemaUpdate(getCfg());
	su.execute(true,true);
	
	// we can run schema validation. Note that in the setUp method a *wrong* table
	// has been created with different column names
	// if schema validator chooses the bad db schema, then the testcase will fail (exception)
	SchemaValidator sv = new SchemaValidator(getCfg());
	sv.validate();
	
	// it's time to clean our database
	se.drop(true,true);
	
	// then the schemas and false table.

	stat.execute("DROP TABLE \"SA\".\"Team\" ");
	stat.execute(" DROP SCHEMA sa ");
	stat.execute("DROP SCHEMA sb ");
	stat.close();
	session.close();
}
 

import org.hibernate.tool.hbm2ddl.SchemaValidator; //导入依赖的package包/类
public void testFailingQuoteValidation() throws Exception{
	// database schema have been created thanks to the setUp method
	// we have 2 schemas SA et SB, SB must be set as the default schema
	// used by hibernate hibernate.default_schema SB
	SchemaExport se = new SchemaExport(getCfg());
	se.create(true,true);
	
	// here we modify the generated table in order to test SchemaUpdate
	Session session = openSession();
	Connection conn = session.connection();
	Statement stat = conn.createStatement();
	stat.execute("ALTER TABLE \"SB\".\"Team\" DROP COLUMN name ");
	
	// update schema
	//SchemaUpdate su = new SchemaUpdate(getCfg());
	//su.execute(true,true);
	
	try {
		SchemaValidator sv = new SchemaValidator(getCfg());
		sv.validate();
		fail("should fail since we mutated the current schema.");
	} catch(HibernateException he) {
		
	}
	
	// it's time to clean our database
	se.drop(true,true);
	
	// then the schemas and false table.

	stat.execute("DROP TABLE \"SA\".\"Team\" ");
	stat.execute(" DROP SCHEMA sa ");
	stat.execute("DROP SCHEMA sb ");
	stat.close();
	session.close();
}
 

import org.hibernate.tool.hbm2ddl.SchemaValidator; //导入依赖的package包/类
public void testFailingNonQuoteValidation() throws Exception{
	// database schema have been created thanks to the setUp method
	// we have 2 schemas SA et SB, SB must be set as the default schema
	// used by hibernate hibernate.default_schema SB
	SchemaExport se = new SchemaExport(getCfg());
	se.create(true,true);
	
	// here we modify the generated table in order to test SchemaUpdate
	Session session = openSession();
	Connection conn = session.connection();
	Statement stat = conn.createStatement();
	stat.execute("ALTER TABLE \"SB\".\"TEAM\" DROP COLUMN xname ");
	
	// update schema
	//SchemaUpdate su = new SchemaUpdate(getCfg());
	//su.execute(true,true);
	
	try {
		SchemaValidator sv = new SchemaValidator(getCfg());
		sv.validate();
		fail("should fail since we mutated the current schema.");
	} catch(HibernateException he) {
		
	}
	
	// it's time to clean our database
	se.drop(true,true);
	
	// then the schemas and false table.

	stat.execute("DROP TABLE \"SA\".\"Team\" ");
	stat.execute(" DROP SCHEMA sa ");
	stat.execute("DROP SCHEMA sb ");
	stat.close();
	session.close();
}
 

import org.hibernate.tool.hbm2ddl.SchemaValidator; //导入依赖的package包/类
/**
 * Schema validation
 */
private void validateSchema() {
    try {
        StandardServiceRegistry registry = localSessionFactory.getConfiguration()
                .getStandardServiceRegistryBuilder().build();
        MetadataSources sources = new MetadataSources(registry);
        sources.addPackage("org.unitedinternet.cosmo.model.hibernate");
        Metadata metadata = sources.buildMetadata(registry);
        new SchemaValidator().validate(metadata);
        LOG.info("schema validation passed");
    } catch (HibernateException e) {
        LOG.error("error validating schema", e);
        throw e;
    }
}
 

import org.hibernate.tool.hbm2ddl.SchemaValidator; //导入依赖的package包/类
public static void execute(Dialect dialect, Class<?>... classes) {
    Configuration configuration = new Configuration();
    SchemaExport schemaExport = new SchemaExport(configuration);
    SchemaUpdate schemaUpdate = new SchemaUpdate(configuration);
    try {
        new SchemaValidator(configuration).validate();
    }
    catch (Exception e) {
        logger.error("Failed create the table: " + e.getMessage());
    }
}