Vaadin的书说:
通常,SQLContainer 会在需要时自动处理刷新。
但是,这是在哪里定义的?容器多久刷新一次?
我试图对此进行测试但无法解决
您可以简单地检查SQLContainer代码。
词组
通常,SQLContainer 会在需要时自动处理刷新。
意味着 SQLContainer 将在对其状态进行一些更改后自行刷新。例如,添加orderBy refresh()后将被调用:
/**
* Adds the given OrderBy to this container and refreshes the container
* contents with the new sorting rules.
*
* Note that orderBy.getColumn() must return a column name that exists in
* this container.
*
* @param orderBy
* OrderBy to be added to the container sorting rules
*/
public void addOrderBy(OrderBy orderBy) {
if (orderBy == null) {
return;
}
if (!propertyIds.contains(orderBy.getColumn())) {
throw new IllegalArgumentException(
"The column given for sorting does not exist in this container.");
}
sorters.add(orderBy);
refresh();
}
这适用于所有其他操作(请注意refresh()调用):
public void rollback() throws UnsupportedOperationException, SQLException {
debug(null, "Rolling back changes...");
removedItems.clear();
addedItems.clear();
modifiedItems.clear();
refresh();
}