public void Reload()
{
var loader = _loader;
//如果加载器为空则退出
if (loader == null)
{
return;
}
//加载当前应用的所有元数据提供程序
var items = loader.Load(_name);
_metadatas.Clear();
_metadatas.AddRange(items);
//设置加载标记为完成
_isLoaded = true;
}
public void AddRange_can_add_items_to_readonly_collection()
{
var metadataCollection = new MetadataCollection<EntityType>();
var item = new EntityType("E", "N", DataSpace.CSpace);
metadataCollection.Add(item);
Assert.Equal(1, metadataCollection.Count);
metadataCollection.SetReadOnly();
Assert.True(metadataCollection.IsReadOnly);
metadataCollection.AddRange(
new List<EntityType>
{
new EntityType("F", "N", DataSpace.CSpace),
new EntityType("G", "N", DataSpace.CSpace)
});
Assert.Equal(3, metadataCollection.Count);
Assert.True(metadataCollection.IsReadOnly);
}
public void AddRange_throws_ArgumentNullException_for_null_collection_item()
{
var metadataCollection = new MetadataCollection<MetadataItem>();
Assert.Equal(
Strings.ADP_CollectionParameterElementIsNull("items"),
Assert.Throws<ArgumentException>(
() => metadataCollection.AddRange(
new List<MetadataItem>
{
null
})).Message);
}
public void AddRange_throws_ArgumentNullException_for_null_identity()
{
var metadataCollection = new MetadataCollection<EntityType>();
Assert.Equal(
new ArgumentNullException("name").Message,
Assert.Throws<ArgumentNullException>(
() => metadataCollection.AddRange(
new List<EntityType>
{
new EntityType(null, null, DataSpace.CSpace)
})).Message);
}
public void AddRange_throws_ArgumentException_for_duplicate_identity()
{
var metadataCollection = new MetadataCollection<EntityType>();
var item = new EntityType("E", "N", DataSpace.CSpace);
metadataCollection.Add(item);
Assert.Equal(1, metadataCollection.Count);
Assert.Contains(
Strings.ItemDuplicateIdentity(item.Identity),
Assert.Throws<ArgumentException>(
() => metadataCollection.AddRange(
new List<EntityType>
{
item
})).Message);
Assert.Contains(
Strings.ItemDuplicateIdentity(item.Identity),
Assert.Throws<ArgumentException>(
() => metadataCollection.AddRange(
new List<EntityType>
{
new EntityType("E", "N", DataSpace.CSpace)
})).Message);
}