[Hibernate-commits] Hibernate/cirrus/hibernate/map UniqueKey.java,NONE,1.1

[<one...@us...>]

Update of /cvsroot/hibernate/Hibernate/cirrus/hibernate/map
In directory sc8-pr-cvs1:/tmp/cvs-serv22482/hibernate/map

Added Files:
	UniqueKey.java 
Log Message:
support for multi-column unique constraints via unique-key attribute

--- NEW FILE: UniqueKey.java ---
//$Id: UniqueKey.java,v 1.1 2002/12/26 03:37:01 oneovthafew Exp $
package cirrus.hibernate.map;

import java.util.Iterator;

import cirrus.hibernate.helpers.StringHelper;
import cirrus.hibernate.sql.Dialect;

public class UniqueKey extends Constraint {

	public String sqlConstraintString(Dialect d) {
		StringBuffer buf = new StringBuffer(" unique (");
		Iterator iter = getColumnIterator();
		while ( iter.hasNext() ) {
			buf.append( ( (Column) iter.next() ).getName() );
			if ( iter.hasNext() ) buf.append(", ");
		}
		return buf.append(")").toString();
	}
	
	public String sqlConstraintString(Dialect d, String constraintName) {
		StringBuffer buf = new StringBuffer( 
			d.getAddPrimaryKeyConstraintString(constraintName) 
		).append('(');
		Iterator iter = getColumnIterator();
		while ( iter.hasNext() ) {
			buf.append( ( (Column) iter.next() ).getName() );
			if ( iter.hasNext() ) buf.append(", ");
		}
		return StringHelper.replace( buf.append(")").toString(), "primary key", "unique" ); //TODO: improve this hack!
	}
}