/// <summary>
/// 类似List（int）这样的值成员的集合所对应的表
/// </summary>
/// <param name="root"></param>
/// <param name="master"></param>
/// <param name="memberField"></param>
/// <param name="objectType"></param>
/// <returns></returns>
private static DataTable CreateValueListTable(DataTable root, DataTable master, IDataField memberField, Type objectType)
{
var valueListField = memberField as ValueListField;
string tableName = string.Format("{0}_{1}", master.Name, memberField.Name);
IDataField[] fields = null;
var reflectedType = valueListField.GetReflectedType(); //就算集合的成员类型各自不同，但是他们肯定继承至同一个根类，因此中间表是统一一个类型的
if (root.IsEqualsOrDerivedOrInherited(master))
{
var rootField = GetForeignKey(master, GeneratedFieldType.RootKey, DbFieldType.NonclusteredIndex);
var indexField = GeneratedField.CreateOrderIndex(objectType, DbFieldType.NonclusteredIndex);
var valueField = GeneratedField.CreatePrimitiveValue(reflectedType, valueListField);
fields = new IDataField[] { rootField, indexField, valueField };
}
else
{
var rootField = GetForeignKey(root, GeneratedFieldType.RootKey, DbFieldType.NonclusteredIndex); //中间表中追加根字段，可以有效防止数据重叠
var masterField = GetForeignKey(master, GeneratedFieldType.MasterKey, DbFieldType.NonclusteredIndex);
var indexField = GeneratedField.CreateOrderIndex(objectType, DbFieldType.NonclusteredIndex);
var valueField = GeneratedField.CreatePrimitiveValue(reflectedType, valueListField);
fields = new IDataField[] { rootField, masterField, indexField, valueField };
}
var middle = DataTable.CreateMiddle(root,
master,
tableName,
DataTableType.Middle,
fields,
memberField);
return(middle);
}
private static List <IDataField> GetObjectFieldsByNoDerived(Type objectType, bool isSnapshot)
{
var domainProperties = Util.GetProperties(objectType);
var fields = GetFields(domainProperties, isSnapshot);
fields.Add(GeneratedField.CreateTypeKey(objectType));
fields.Add(GeneratedField.CreateDataVersion(objectType));
return(fields);
}
/// <summary>
///
/// </summary>
/// <param name="master"></param>
/// <param name="slave"></param>
/// <param name="memberField"></param>
/// <returns></returns>
private static DataTable CreateMiddleTable(DataTable slave, IDataField memberField)
{
var root = slave.Root;
var master = slave.Master;
string tableName = string.Format("{0}_{1}", master.Name, memberField.Name);
IDataField[] fields = null;
var objectType = (memberField as ObjectField).GetReflectedType(); //就算集合的成员类型各自不同，但是他们肯定继承至同一个根类，因此中间表是统一一个类型的
if (root.IsEqualsOrDerivedOrInherited(master))
{
var rootField = GetForeignKey(master, GeneratedFieldType.RootKey, DbFieldType.NonclusteredIndex);
var slaveField = GetForeignKey(slave, GeneratedFieldType.SlaveKey, DbFieldType.NonclusteredIndex);
slaveField.ParentMemberField = memberField;
var indexField = GeneratedField.CreateOrderIndex(objectType, DbFieldType.NonclusteredIndex);
//注意，大多数查询都是以rootField 为条件, indexField为排序，输出slaveField字段，
//所以slaveField的位置在最后
fields = new IDataField[] { rootField, indexField, slaveField };
}
else
{
var rootField = GetForeignKey(root, GeneratedFieldType.RootKey, DbFieldType.NonclusteredIndex); //中间表中追加根字段，可以有效防止数据重叠
var masterField = GetForeignKey(master, GeneratedFieldType.MasterKey, DbFieldType.NonclusteredIndex);
var slaveField = GetForeignKey(slave, GeneratedFieldType.SlaveKey, DbFieldType.NonclusteredIndex);
slaveField.ParentMemberField = memberField;
var indexField = GeneratedField.CreateOrderIndex(objectType, DbFieldType.NonclusteredIndex);
//注意，大多数查询都是以rootField, masterField为条件, indexField为排序，输出slaveField字段，
//所以slaveField的位置在最后
fields = new IDataField[] { rootField, masterField, indexField, slaveField };
}
var middle = DataTable.CreateMiddle(root,
master,
tableName,
DataTableType.Middle,
fields,
memberField);
middle.Slave = slave;
//如果从表是根，那么需要记录从表和中间表的联系，当删除根对象时，会删除该中间表的数据
RootIsSlaveIndex.TryAdd(middle);
return(middle);
}
/// <summary>
/// 创建实体对象的表
/// </summary>
/// <param name="root"></param>
/// <param name="master"></param>
/// <param name="memberField"></param>
/// <param name="isMultiple"></param>
/// <returns></returns>
private static DataTable CreateEntityObjectTable(DataTable root, DataTable master, IDataField memberField, Type objectType)
{
//注意，在内聚模型中，只要是实体对象，那么它就是相对于内聚根的实体对象，而不是所在对象的实体对象
//因此，所有的实体对象，外键存放的都是内聚根的编号
var fields = new List <IDataField>();
fields.AddRange(DataModel.GetObjectFields(objectType, master.IsSnapshot)); //增加对象定义的领域属性
if (!objectType.IsDerived())
{
//派生类不必有引用次数
fields.Add(GeneratedField.CreateAssociatedCount(objectType));//追加被引用次数
}
return(DataTable.Create(root,
master,
objectType,
master.IsSnapshot,//根据从表，判断是否为快照
DataTableType.EntityObject, fields, memberField));
}
/// <summary>
/// 创建值对象的表
/// </summary>
/// <param name="root"></param>
/// <param name="master"></param>
/// <param name="memberField"></param>
/// <param name="isMultiple"></param>
/// <returns></returns>
private static DataTable CreateValueObjectTable(DataTable root, DataTable master, IDataField memberField, Type objectType)
{
var fields = new List <IDataField>();
fields.Add(GeneratedField.CreateValueObjectPrimaryKey(objectType)); //追加主键
fields.AddRange(DataModel.GetObjectFields(objectType, master.IsSnapshot)); //增加对象定义的领域属性
if (!objectType.IsDerived())
{
//派生类不必追加引用次数
fields.Add(GeneratedField.CreateAssociatedCount(objectType));//追加被引用次数
}
return(DataTable.Create(root,
master,
objectType,
master.IsSnapshot,//根据主表，判断是否为快照
DataTableType.ValueObject,
fields,
memberField));
}
private IEnumerable <IDataField> MapFields(Type objectType, IEnumerable <DbField> attachedFields)
{
List <IDataField> fields = new List <IDataField>();
foreach (var attachedField in attachedFields)
{
var stringField = attachedField as StringField;
if (stringField != null)
{
var field = GeneratedField.CreateString(objectType, stringField.Name, stringField.MaxLength, stringField.ASCII);
field.IsAdditional = true;
fields.Add(field);
}
else
{
var field = GeneratedField.Create(objectType, attachedField.ValueType, attachedField.Name);
field.IsAdditional = true;
fields.Add(field);
}
}
return(fields);
}
private static bool FillFields(List <IDataField> fields, IDataField current)
{
string name = string.IsNullOrEmpty(current.Name) ? current.GetPropertyName() : current.Name;
switch (current.FieldType)
{
case DataFieldType.GeneratedField:
{
fields.Add(current); //对于生成的键，直接追加
return(true);
}
case DataFieldType.Value:
{
var valueField = current as ValueField;
//存值
var field = new ValueField(current.Tip, valueField.DbFieldTypes.ToArray())
{
Name = name,
ParentMemberField = current.ParentMemberField
};
fields.Add(field);
return(true);
}
//case DataFieldType.ValueList:
// {
// //普通值的集合，会被转换成逗号分隔的字符串存放，因此作为字段输入
// var vlf = current as ValueListField;
// var field = new ValueListField(vlf.Tip)
// {
// Name = name
// };
// fields.Add(field);
// return true;
// }
case DataFieldType.EntityObject:
case DataFieldType.EntityObjectPro:
case DataFieldType.AggregateRoot:
{
//存外键即可
var idAttr = DomainProperty.GetProperty(current.Tip.PropertyType, EntityObject.IdPropertyName).RepositoryTip;
var field = new ValueField(idAttr)
{
Name = _getIdName(name),
ParentMemberField = current
};
fields.Add(field);
return(true);
}
case DataFieldType.ValueObject:
{
var primaryKey = GeneratedField.CreateValueObjectPrimaryKey(current.Tip.PropertyType);
var field = new ValueField(primaryKey.Tip)
{
Name = _getIdName(name),
ParentMemberField = current
};
fields.Add(field);
return(true);
}
default:
{
current.Name = name; //对于其他的类型，只是赋值字段名称
break;
}
}
return(false);
}
