public Object lookupObject(final String ref) {
		Object value = getObjectReference(ref);
		if (value == null) {
			throw new DbSqlBuilderException("Invalid object reference: " + ref);
		}
		return value;
	}
public Object lookupObject(final String ref) {
		Object value = getObjectReference(ref);
		if (value == null) {
			throw new DbSqlBuilderException("Invalid object reference: " + ref);
		}
		return value;
	}
public Object lookupObject ( final String ref ) { Object value = getObjectReference ( ref ) ; if ( value == null ) { throw new DbSqlBuilderException ( "Invalid object reference: " + ref ) ; } return value ; }
Lookups for object reference and throws an exception if reference doesn't exist.
Lookups for object reference and throws an exception if reference doesn t exist .