HSQLIdentityColumnSupport.java

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.dialect.identity;

/**
 * @author Andrea Boriero
 */
public class HSQLIdentityColumnSupport extends IdentityColumnSupportImpl {

	final private int hsqldbVersion;

	public HSQLIdentityColumnSupport(int hsqldbVersion) {

		this.hsqldbVersion = hsqldbVersion;
	}

	@Override
	public boolean supportsIdentityColumns() {
		return true;
	}

	@Override
	public String getIdentityColumnString(int type) {
		//not null is implicit
		return "generated by default as identity (start with 1)";
	}

	@Override
	public String getIdentitySelectString(String table, String column, int type) {
		return "call identity()";
	}

	@Override
	public String getIdentityInsertString() {
		return hsqldbVersion < 200 ? "null" : "default";
	}
}