@Override
    public String toString() {
        JDOQLSerializer serializer = new JDOQLSerializer(templates, entity);
        serializer.handle(metadata.getWhere());
        return serializer.toString();
    }
{@link DeleteClause} implementation for JDO

@author tiwe
querydsl-jdo/src/main/java/com/querydsl/jdo/dml/JDODeleteClause.java