// $Id: NameGenerator.java 4899 2004-12-06 14:17:24Z pgmjsd $
package org.hibernate.hql;
import org.hibernate.MappingException;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.type.Type;
/**
* Provides utility methods for generating HQL / SQL names. Shared by both the 'classic' and 'new' query translators.
*
* @author josh Mar 18, 2004 7:17:25 AM
*/
public final class NameGenerator {
/**
* Private empty constructor (checkstyle says utility classes should not have default constructors).
*/
private NameGenerator() {
}
public static String[][] generateColumnNames(Type[] types, SessionFactoryImplementor f) throws MappingException {
String[][] columnNames = new String[types.length][];
for ( int i = 0; i < types.length; i++ ) {
int span = types[i].getColumnSpan( f );
columnNames[i] = new String[span];
for ( int j = 0; j < span; j++ ) {
columnNames[i][j] = NameGenerator.scalarName( i, j );
}
}
return columnNames;
}
public static String scalarName(int x, int y) {
return new StringBuffer()
.append( "col_" )
.append( x )
.append( '_' )
.append( y )
.append( '_' )
.toString();
}
}
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