void InitMemberInfo()
{
Type t = this.EntityType;
var members = t.GetMembers(BindingFlags.Public | BindingFlags.Instance);
Dictionary <MemberInfo, MappingMemberDescriptor> mappingMemberDescriptors = new Dictionary <MemberInfo, MappingMemberDescriptor>();
Dictionary <MemberInfo, NavigationMemberDescriptor> navigationMemberDescriptors = new Dictionary <MemberInfo, NavigationMemberDescriptor>();
foreach (var member in members)
{
var ignoreFlags = member.GetCustomAttributes(typeof(NotMappedAttribute), false);
if (ignoreFlags.Count() > 0)
{
continue;
}
Type memberType = null;
PropertyInfo prop = null;
FieldInfo field = null;
if ((prop = member as PropertyInfo) != null)
{
if (prop.GetSetMethod() == null)
{
continue;//对于没有公共的 setter 直接跳过
}
memberType = prop.PropertyType;
}
else if ((field = member as FieldInfo) != null)
{
memberType = field.FieldType;
}
else
{
continue;//只支持公共属性和字段
}
if (Utils.IsMapType(memberType))
{
MappingMemberDescriptor memberDescriptor = this.ConstructDbFieldDescriptor(member);
mappingMemberDescriptors.Add(member, memberDescriptor);
}
else
{
var associationFlags = member.GetCustomAttributes(typeof(AssociationAttribute), true);
if (associationFlags.Count() > 0)
{
AssociationAttribute associationFlag = (AssociationAttribute)associationFlags.First();
NavigationMemberDescriptor navigationMemberDescriptor = null;
if (member.MemberType == MemberTypes.Property)
{
navigationMemberDescriptor = new NavigationPropertyDescriptor(prop, this, associationFlag.ThisKey, associationFlag.AssociatingKey);
}
else if (member.MemberType == MemberTypes.Field)
{
navigationMemberDescriptor = new NavigationFieldDescriptor(field, this, associationFlag.ThisKey, associationFlag.AssociatingKey);
}
else
{
continue;
}
navigationMemberDescriptors.Add(member, navigationMemberDescriptor);
}
continue;
}
}
this._mappingMemberDescriptors = Utils.Clone(mappingMemberDescriptors);
this._navigationMemberDescriptors = Utils.Clone(navigationMemberDescriptors);
}
void InitMemberInfo()
{
List <MappingMemberDescriptor> mappingMemberDescriptors = this.ExtractMappingMemberDescriptors();
int primaryKeyCount = mappingMemberDescriptors.Where(a => a.IsPrimaryKey).Count();
if (primaryKeyCount > 1)
{
throw new NotSupportedException(string.Format("The entity type '{0}' can't define multiple primary keys.", this.EntityType.FullName));
}
else if (primaryKeyCount == 1)
{
this._primaryKey = mappingMemberDescriptors.Where(a => a.IsPrimaryKey).First();
}
else
{
//如果没有定义任何主键，则从所有映射的属性中查找名为 id 的属性作为主键
MappingMemberDescriptor idNameMemberDescriptor = mappingMemberDescriptors.Where(a => a.MemberInfo.Name.ToLower() == "id" && !a.IsDefined(typeof(ColumnAttribute))).FirstOrDefault();
if (idNameMemberDescriptor != null)
{
idNameMemberDescriptor.IsPrimaryKey = true;
this._primaryKey = idNameMemberDescriptor;
}
}
List <MappingMemberDescriptor> autoIncrementMemberDescriptors = mappingMemberDescriptors.Where(a => a.IsDefined(typeof(AutoIncrementAttribute))).ToList();
if (autoIncrementMemberDescriptors.Count > 1)
{
throw new NotSupportedException(string.Format("The entity type '{0}' can not define multiple autoIncrement members.", this.EntityType.FullName));
}
else if (autoIncrementMemberDescriptors.Count == 1)
{
MappingMemberDescriptor autoIncrementMemberDescriptor = autoIncrementMemberDescriptors[0];
if (autoIncrementMemberDescriptor.IsDefined(typeof(NonAutoIncrementAttribute)))
{
throw new ChloeException(string.Format("Can't define both 'AutoIncrementAttribute' and 'NotAutoIncrementAttribute' on the same mapping member '{0}'.", autoIncrementMemberDescriptor.MemberInfo.Name));
}
if (!IsAutoIncrementType(autoIncrementMemberDescriptor.MemberInfoType))
{
throw new ChloeException("AutoIncrement member type must be Int16,Int32 or Int64.");
}
autoIncrementMemberDescriptor.IsAutoIncrement = true;
this._autoIncrement = autoIncrementMemberDescriptor;
}
else
{
MappingMemberDescriptor defaultAutoIncrementMemberDescriptor = mappingMemberDescriptors.Where(a => a.IsPrimaryKey && IsAutoIncrementType(a.MemberInfoType) && !a.IsDefined(typeof(NonAutoIncrementAttribute))).FirstOrDefault();
if (defaultAutoIncrementMemberDescriptor != null)
{
defaultAutoIncrementMemberDescriptor.IsAutoIncrement = true;
this._autoIncrement = defaultAutoIncrementMemberDescriptor;
}
}
this._mappingMemberDescriptors = new Dictionary <MemberInfo, MappingMemberDescriptor>(mappingMemberDescriptors.Count);
foreach (MappingMemberDescriptor mappingMemberDescriptor in mappingMemberDescriptors)
{
this._mappingMemberDescriptors.Add(mappingMemberDescriptor.MemberInfo, mappingMemberDescriptor);
}
}
void InitMemberInfo()
{
List <MappingMemberDescriptor> mappingMemberDescriptors = this.ExtractMappingMemberDescriptors();
List <MappingMemberDescriptor> primaryKeys = mappingMemberDescriptors.Where(a => a.IsPrimaryKey).ToList();
if (primaryKeys.Count == 0)
{
//如果没有定义任何主键，则从所有映射的属性中查找名为 id 的属性作为主键
MappingMemberDescriptor idNameMemberDescriptor = mappingMemberDescriptors.Where(a => a.MemberInfo.Name.ToLower() == "id" && !a.IsDefined(typeof(ColumnAttribute))).FirstOrDefault();
if (idNameMemberDescriptor != null)
{
idNameMemberDescriptor.IsPrimaryKey = true;
primaryKeys.Add(idNameMemberDescriptor);
}
}
this._primaryKeys = primaryKeys.AsReadOnly();
List <MappingMemberDescriptor> autoIncrementMemberDescriptors = mappingMemberDescriptors.Where(a => a.IsDefined(typeof(AutoIncrementAttribute))).ToList();
if (autoIncrementMemberDescriptors.Count > 1)
{
throw new NotSupportedException(string.Format("The entity type '{0}' can not define multiple auto increment members.", this.EntityType.FullName));
}
else if (autoIncrementMemberDescriptors.Count == 1)
{
MappingMemberDescriptor autoIncrementMemberDescriptor = autoIncrementMemberDescriptors[0];
if (autoIncrementMemberDescriptor.IsDefined(typeof(NonAutoIncrementAttribute)))
{
throw new ChloeException(string.Format("Can't define both 'AutoIncrementAttribute' and 'NotAutoIncrementAttribute' on the same mapping member '{0}'.", autoIncrementMemberDescriptor.MemberInfo.Name));
}
if (!IsAutoIncrementType(autoIncrementMemberDescriptor.MemberInfoType))
{
throw new ChloeException("Auto increment member type must be Int16, Int32 or Int64.");
}
if (autoIncrementMemberDescriptor.IsPrimaryKey && primaryKeys.Count > 1)
{
/* 自增列不能作为联合主键 */
throw new ChloeException("Auto increment member can not be union key.");
}
autoIncrementMemberDescriptor.IsAutoIncrement = true;
this._autoIncrement = autoIncrementMemberDescriptor;
}
else if (primaryKeys.Count == 1)
{
/* 如果没有显示定义自增成员，并且主键只有 1 个，如果该主键满足一定条件，则默认其是自增列 */
MappingMemberDescriptor primaryKeyDescriptor = primaryKeys[0];
if (IsAutoIncrementType(primaryKeyDescriptor.MemberInfoType) && !primaryKeyDescriptor.IsDefined(typeof(NonAutoIncrementAttribute)))
{
primaryKeyDescriptor.IsAutoIncrement = true;
this._autoIncrement = primaryKeyDescriptor;
}
}
this._mappingMemberDescriptors = new Dictionary <MemberInfo, MappingMemberDescriptor>(mappingMemberDescriptors.Count);
foreach (MappingMemberDescriptor mappingMemberDescriptor in mappingMemberDescriptors)
{
this._mappingMemberDescriptors.Add(mappingMemberDescriptor.MemberInfo, mappingMemberDescriptor);
}
}