private SpmAccessors()
{
Type itemType = typeof(TItem);
PropertyInfo[] properties = itemType.GetProperties(BindingFlags.Public |
BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static);
List <ISpmAccessor <TItem> > list = new List <ISpmAccessor <TItem> >(properties.Length);
for (int i = 0; i < properties.Length; i++)
{
PropertyInfo property = properties[i];
SpmAttribute mappedAttr = property.GetCustomAttribute <SpmAttribute>();
if (mappedAttr != null)
{
bool isNullable = false;
Type valueType = property.PropertyType;
if (valueType.IsGenericType && valueType.GetGenericTypeDefinition() == typeof(Nullable <>))
{
// nullable type
valueType = Nullable.GetUnderlyingType(valueType);
isNullable = true;
}
if (valueType.IsEnum)
{
valueType = Enum.GetUnderlyingType(valueType);
}
Delegate readDelegate = SpmReaderDelegates.Get(valueType);
ISpmAccessor <TItem> accessor;
if (readDelegate == null)
{
// user type
// test for default constructor
if (valueType.GetConstructor(Type.EmptyTypes) == null)
{
throw new ArgumentException(String.Concat("Type \"", valueType.Name, " of property \"",
property.Name, "\" marked with SqlMapped must have default constructor"));
}
Type propertyAccessorType =
typeof(SpmComplexAccessor <,>).MakeGenericType(itemType, valueType);
accessor = (ISpmAccessor <TItem>)
Activator.CreateInstance(propertyAccessorType, property, mappedAttr);
}
else
{
// standard type
Type propertyAccessorType = isNullable ?
typeof(SpmNullableAccessor <,>).MakeGenericType(itemType, valueType) :
typeof(SpmAccessor <,>).MakeGenericType(itemType, valueType);
accessor = (ISpmAccessor <TItem>)
Activator.CreateInstance(propertyAccessorType, property, mappedAttr, readDelegate);
}
list.Add(accessor);
}
}
list.TrimExcess();
this.collection = new ReadOnlyCollection <ISpmAccessor <TItem> >(list);
}
public SpmComplexAccessor(PropertyInfo property, SpmAttribute mappedAttribute)
: base(property, mappedAttribute)
{
valueType = typeof(TValue);
this.propertyToken = property.MetadataToken;
if (valueType.IsClass && mappedAttribute.ShareId == String.Empty)
{
mappedAttribute.ShareId = property.Name;
}
}
public SpmAccessor(PropertyInfo property, SpmAttribute mappedAttribute,
Func <SqlDataReader, int, TValue> readValue)
: base(property, mappedAttribute)
{
this.read = readValue;
if (mappedAttribute.Columns.Length == 0)
{
mappedAttribute.ColumnNames = property.Name;
}
}
public SpmAccessorBase(PropertyInfo property, SpmAttribute mappedAttribute)
{
if (property == null)
{
throw new ArgumentNullException("property");
}
if (mappedAttribute == null)
{
throw new ArgumentNullException("mappedAttribute");
}
MethodInfo getMethod = property.GetGetMethod(true);
MethodInfo setMethod = property.GetSetMethod(true);
if (getMethod == null || setMethod == null)
{
throw new ArgumentException(String.Concat("Property \"", property.Name, "\" of type \"",
property.ReflectedType.Name, "\" marked with SqlMapped must have both get and set accessor"));
}
this.getter = (Func <TItem, TValue>)getMethod.CreateDelegate(typeof(Func <TItem, TValue>));
this.setter = (Action <TItem, TValue>)setMethod.CreateDelegate(typeof(Action <TItem, TValue>));
this.mapped = mappedAttribute;
}
public SpmItem(ISpmContext readContext, SpmAttribute mappedHolder, string group)
{
if (readContext == null)
{
throw new ArgumentNullException("itemReader");
}
this.context = readContext;
this.MappedHolder = mappedHolder;
ReadOnlyCollection <ISpmAccessor <TItem> > coll = SpmAccessors <TItem> .Collection;
this.accessors = new List <SprIndexedAccessor>(coll.Count);
this.keys = new List <SprIndexedAccessor>(4);
for (int i = 0; i < coll.Count; i++)
{
ISpmAccessor <TItem> accessor = coll[i];
if (accessor.Mapped.InGroup(group))
{
string[] colNames = accessor.Mapped.Columns;
int index = -1;
for (int j = 0; j < colNames.Length; j++)
{
string colName = colNames[j];
if (colName.StartsWith("/"))
{
if (this.MappedHolder == null || !this.MappedHolder.HasSynonyms)
{
throw new ArgumentException(String.Concat("Не заданы родительские синонимы для", colNames[j]));
}
if (String.IsNullOrEmpty((colName = this.MappedHolder.GetSynonim(colName.Substring(1)))))
{
throw new ArgumentException(String.Concat("Не найдена ссылка на родительский синоним ", colNames[j]));
}
}
if ((index = this.context.TryGetIndex(colName)) >= 0)
{
break;
}
}
if (index < 0 && colNames.Length > 0)
{
throw new ArgumentException(String.Concat("В результате запроса не найдено хотя бы одно из полей: ",
String.Join(", ", colNames)));
}
SprIndexedAccessor indexedAccessor = new SprIndexedAccessor(index, accessor);
this.accessors.Add(indexedAccessor);
if (accessor.Mapped.Key)
{
keys.Add(indexedAccessor);
}
}
}
this.accessors.TrimExcess();
if (mappedHolder != null && mappedHolder.Shared)
{
this.sharedItems = readContext.SharedPool.Get <TItem>(mappedHolder.ShareId, out this.extendable);
if (this.sharedItems == null)
{
this.sharedItems = new Dictionary <TItem, TItem>(10);
readContext.SharedPool.Set(mappedHolder.ShareId, this.sharedItems, true);
this.extendable = true;
}
else
if (this.keys.Count == 0 && !this.extendable)
{
throw new ArgumentException("Не заданы ключи для использования фиксированного пула элементов.");
}
this.sharedItem = new TItem();
}
}
public SpmNullableAccessor(PropertyInfo property, SpmAttribute mappedAttribute,
Func <SqlDataReader, int, TValue> readValue)
: base(property, mappedAttribute)
{
this.read = readValue;
}