//TODO:更名为remove
/// <summary>
/// 删除数据实体
/// </summary>
/// <param name="id"></param>
public void Delete(DataEntityDev dataEntity)
{
Debug.Assert(dataEntity != null, "dataEntity 为 null");
if (dataEntity == null)
{
return;
}
//移除索引信息
XElement element = _indexXml.XPathSelectElement(String.Format(XPATH_Index_SelectDataEntity, dataEntity.Id));
Debug.Assert(element != null, "删除数据实体索引时未找到指定数据实体的索引记录");
if (element != null)
{
element.Remove();
SaveIndexFile();
//移除数据实体文件
_packageService.Current.DeleteFile(Path.Combine(Constant.PACKAGE_DATAENTITY_FOLDER, dataEntity.Id));
_cachingService.Remove(dataEntity.Id);
//发布事件
DataEntityEventArgs args = new DataEntityEventArgs(dataEntity);
_eventAggregator.GetEvent <DataEntityRemovedEvent>().Publish(args);
}
}
/// <summary>
/// 更新数据实体
/// 实现方式是删除旧节点后重新添加，避免在这里再次操作XML具体内容
/// </summary>
/// <param name="dataEntity"></param>
public void Update(DataEntityDev dataEntity)
{
Debug.Assert(dataEntity != null, "dataEntity 为 null");
if (dataEntity == null)
{
return;
}
//更新索引信息
XElement element = _indexXml.XPathSelectElement(String.Format(XPATH_Index_SelectDataEntity, dataEntity.Id));
Debug.Assert(element != null, "更新数据实体索引时未找到指定数据实体的索引记录");
if (element != null)
{
element.ReplaceWith(ArchiveHelper.GetEntityArchiveIndex(dataEntity));
SaveIndexFile();
string xml = dataEntity.ToXml();
XElement xElement = XElement.Parse(xml);
//更新数据实体文件
_packageService.Current.AddFileContent(xml, Path.Combine(Constant.PACKAGE_DATAENTITY_FOLDER, dataEntity.Id));
_cachingService.Add(dataEntity.Id, xElement);
//发布事件
DataEntityEventArgs args = new DataEntityEventArgs(dataEntity);
_eventAggregator.GetEvent <DataEntityUpdatedEvent>().Publish(args);
}
}
/// <summary>
/// 添加一个数据实体
/// </summary>
/// <param name="dataEntity"></param>
public void Add(DataEntityDev dataEntity)
{
Debug.Assert(dataEntity != null, "dataEntity 为 null");
if (dataEntity == null)
{
return;
}
//添加索引信息
_indexXml.XPathSelectElement(XPATH_Index_DataEntity).Add(ArchiveHelper.GetEntityArchiveIndex(dataEntity));
SaveIndexFile();
string xml = dataEntity.ToXml();
XElement xElement = XElement.Parse(xml);
//添加数据实体文件
_packageService.Current.AddFileContent(xml, Path.Combine(Constant.PACKAGE_DATAENTITY_FOLDER, dataEntity.Id));
_cachingService.Add(dataEntity.Id, xElement);
//发布事件
DataEntityEventArgs args = new DataEntityEventArgs(dataEntity);
_eventAggregator.GetEvent <DataEntityAddedEvent>().Publish(args);
}
