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The core O/RM functionality as provided by Hibernate

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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.dialect;

import java.sql.Types;

import org.hibernate.type.descriptor.sql.BlobTypeDescriptor;
import org.hibernate.type.descriptor.sql.ClobTypeDescriptor;
import org.hibernate.type.descriptor.sql.SqlTypeDescriptor;


/**
 * All Sybase dialects share an IN list size limit.
 *
 * @author Brett Meyer
 */
public class SybaseDialect extends AbstractTransactSQLDialect {
	
	private static final int PARAM_LIST_SIZE_LIMIT = 250000;

	/* (non-Javadoc)
		 * @see org.hibernate.dialect.Dialect#getInExpressionCountLimit()
		 */
	@Override
	public int getInExpressionCountLimit() {
		return PARAM_LIST_SIZE_LIMIT;
	}
	
	@Override
	protected SqlTypeDescriptor getSqlTypeDescriptorOverride(int sqlCode) {
		switch (sqlCode) {
		case Types.BLOB:
			return BlobTypeDescriptor.PRIMITIVE_ARRAY_BINDING;
		case Types.CLOB:
			// Some Sybase drivers cannot support getClob.  See HHH-7889
			return ClobTypeDescriptor.STREAM_BINDING_EXTRACTING;
		default:
			return super.getSqlTypeDescriptorOverride( sqlCode );
		}
	}
	
	@Override
	public String getNullColumnString() {
		return " null";
	}
}