org.hibernate.id.enhanced.SequenceStyleGenerator#configure ( )源码实例Demo

/**
 * Test all params defaulted with a dialect supporting sequences
 */
public void testDefaultedSequenceBackedConfiguration() {
	Dialect dialect = new SequenceDialect();
	Properties props = new Properties();
	SequenceStyleGenerator generator = new SequenceStyleGenerator();
	generator.configure( Hibernate.LONG, props, dialect );

	assertClassAssignability( SequenceStructure.class, generator.getDatabaseStructure().getClass() );
	assertClassAssignability( OptimizerFactory.NoopOptimizer.class, generator.getOptimizer().getClass() );
	assertEquals( SequenceStyleGenerator.DEF_SEQUENCE_NAME, generator.getDatabaseStructure().getName() );
}
 

/**
 * Test all params defaulted with a dialect which does not support sequences
 */
public void testDefaultedTableBackedConfiguration() {
	Dialect dialect = new TableDialect();
	Properties props = new Properties();
	SequenceStyleGenerator generator = new SequenceStyleGenerator();
	generator.configure( Hibernate.LONG, props, dialect );

	assertClassAssignability( TableStructure.class, generator.getDatabaseStructure().getClass() );
	assertClassAssignability( OptimizerFactory.NoopOptimizer.class, generator.getOptimizer().getClass() );
	assertEquals( SequenceStyleGenerator.DEF_SEQUENCE_NAME, generator.getDatabaseStructure().getName() );
}
 

/**
 * Test default optimizer selection for table backed generators
 * based on the configured increment size.  Here we always prefer
 * pooled.
 */
public void testDefaultOptimizerBasedOnIncrementBackedByTable() {
	Properties props = new Properties();
	props.setProperty( SequenceStyleGenerator.INCREMENT_PARAM, "10" );
	Dialect dialect = new TableDialect();
	SequenceStyleGenerator generator = new SequenceStyleGenerator();
	generator.configure( Hibernate.LONG, props, dialect );
	assertClassAssignability( TableStructure.class, generator.getDatabaseStructure().getClass() );
	assertClassAssignability( OptimizerFactory.PooledOptimizer.class, generator.getOptimizer().getClass() );
	assertEquals( SequenceStyleGenerator.DEF_SEQUENCE_NAME, generator.getDatabaseStructure().getName() );
}
 

/**
 * Test forcing of table as backing strucuture with dialect supporting sequences
 */
public void testForceTableUse() {
	Dialect dialect = new SequenceDialect();
	Properties props = new Properties();
	props.setProperty( SequenceStyleGenerator.FORCE_TBL_PARAM, "true" );
	SequenceStyleGenerator generator = new SequenceStyleGenerator();
	generator.configure( Hibernate.LONG, props, dialect );
	assertClassAssignability( TableStructure.class, generator.getDatabaseStructure().getClass() );
	assertClassAssignability( OptimizerFactory.NoopOptimizer.class, generator.getOptimizer().getClass() );
	assertEquals( SequenceStyleGenerator.DEF_SEQUENCE_NAME, generator.getDatabaseStructure().getName() );
}