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using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq.Expressions;
using System.Reflection;
using System.Text;
using System.Linq;
using System.Data.Linq.Provider;
using System.Data.Linq.Mapping;
using System.Data.Linq.SqlClient;
using System.Threading;
using System.Runtime.Versioning;
using LinqToSqlShared.Mapping;
using System.Runtime.CompilerServices;
namespace System.Data.Linq.Mapping {
internal class MappedMetaModel : MetaModel {
ReaderWriterLock @lock = new ReaderWriterLock();
MappingSource mappingSource;
Type contextType;
Type providerType;
DatabaseMapping mapping;
HashSet<Module> modules;
Dictionary<string, Type> types;
Dictionary<Type, MetaType> metaTypes;
Dictionary<Type, MetaTable> metaTables;
Dictionary<MetaPosition, MetaFunction> metaFunctions;
bool fullyLoaded;
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // mapping parameter contains various type references.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // FindType method call.
internal MappedMetaModel(MappingSource mappingSource, Type contextType, DatabaseMapping mapping) {
this.mappingSource = mappingSource;
this.contextType = contextType;
this.mapping = mapping;
this.modules = new HashSet<Module>();
this.modules.Add(this.contextType.Module);
this.metaTypes = new Dictionary<Type, MetaType>();
this.metaTables = new Dictionary<Type, MetaTable>();
this.types = new Dictionary<string, Type>();
// Provider type
if (this.providerType == null && !String.IsNullOrEmpty(this.mapping.Provider)) {
this.providerType = this.FindType(this.mapping.Provider, typeof(SqlProvider).Namespace);
if (this.providerType == null) {
throw Error.ProviderTypeNotFound(this.mapping.Provider);
}
}
else if (this.providerType == null) {
this.providerType = typeof(SqlProvider);
}
this.Init();
}
#region Initialization
private void Init() {
if (!fullyLoaded) {
// The fullyLoaded state is required so that tools like
// CreateDatabase can get a full view of all tables.
@lock.AcquireWriterLock(Timeout.Infinite);
try {
if (!fullyLoaded) {
// Initialize static tables and functions.
this.InitStaticTables();
this.InitFunctions();
fullyLoaded = true;
}
}
finally {
@lock.ReleaseWriterLock();
}
}
}
[ResourceExposure(ResourceScope.None)] // Exposure is via external mapping file/attributes.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine, ResourceScope.Assembly | ResourceScope.Machine)] // FindType method call.
private void InitStaticTables() {
this.InitStaticTableTypes();
foreach (TableMapping tableMapping in this.mapping.Tables) {
Type rowType = this.FindType(tableMapping.RowType.Name);
if (rowType == null) {
throw Error.CouldNotFindTypeFromMapping(tableMapping.RowType.Name);
}
Type rootType = this.GetRootType(rowType, tableMapping.RowType);
MetaTable table = new MappedTable(this, tableMapping, rootType);
foreach (MetaType mt in table.RowType.InheritanceTypes) {
this.metaTypes.Add(mt.Type, mt);
this.metaTables.Add(mt.Type, table);
}
}
}
private void InitStaticTableTypes() {
for (Type type = this.contextType; type != typeof(DataContext); type = type.BaseType) {
FieldInfo[] fields = type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly);
foreach (FieldInfo fi in fields) {
Type ft = fi.FieldType;
if (ft.IsGenericType && ft.GetGenericTypeDefinition() == typeof(Table<>)) {
Type rowType = ft.GetGenericArguments()[0];
if (!this.types.ContainsKey(rowType.Name)) {
this.types.Add(rowType.FullName, rowType);
if (!this.types.ContainsKey(rowType.Name)) {
this.types.Add(rowType.Name, rowType);
}
this.modules.Add(rowType.Module);
}
}
}
PropertyInfo[] props = type.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly);
foreach (PropertyInfo pi in props) {
Type pt = pi.PropertyType;
if (pt.IsGenericType && pt.GetGenericTypeDefinition() == typeof(Table<>)) {
Type rowType = pt.GetGenericArguments()[0];
if (!this.types.ContainsKey(rowType.Name)) {
this.types.Add(rowType.FullName, rowType);
if (!this.types.ContainsKey(rowType.Name)) {
this.types.Add(rowType.Name, rowType);
}
this.modules.Add(rowType.Module);
}
}
}
}
}
[ResourceExposure(ResourceScope.None)] // mapping instance variable is set elsewhere.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine, ResourceScope.Assembly | ResourceScope.Machine)] // For GetMethods call.
private void InitFunctions() {
this.metaFunctions = new Dictionary<MetaPosition, MetaFunction>();
if (this.contextType != typeof(DataContext)) {
foreach (FunctionMapping fmap in this.mapping.Functions) {
MethodInfo method = this.GetMethod(fmap.MethodName);
if (method == null) {
throw Error.MethodCannotBeFound(fmap.MethodName);
}
MappedFunction func = new MappedFunction(this, fmap, method);
this.metaFunctions.Add(new MetaPosition(method), func);
// pre-set all known function result types into metaType map
foreach (MetaType rt in func.ResultRowTypes) {
foreach (MetaType it in rt.InheritanceTypes) {
if (!this.metaTypes.ContainsKey(it.Type)) {
this.metaTypes.Add(it.Type, it);
}
}
}
}
}
}
#endregion
public override MappingSource MappingSource {
get { return this.mappingSource; }
}
public override Type ContextType {
get { return this.contextType; }
}
public override string DatabaseName {
get { return this.mapping.DatabaseName; }
}
public override Type ProviderType {
get { return this.providerType; }
}
public override IEnumerable<MetaTable> GetTables() {
return this.metaTables.Values.Where(x => x != null).Distinct();
}
public override MetaTable GetTable(Type rowType) {
if (rowType == null) {
throw Error.ArgumentNull("rowType");
}
MetaTable table = null;
this.metaTables.TryGetValue(rowType, out table);
return table;
}
public override MetaType GetMetaType(Type type) {
if (type == null) {
throw Error.ArgumentNull("type");
}
MetaType mtype = null;
@lock.AcquireReaderLock(Timeout.Infinite);
try {
if (this.metaTypes.TryGetValue(type, out mtype)) {
return mtype;
}
}
finally {
@lock.ReleaseReaderLock();
}
@lock.AcquireWriterLock(Timeout.Infinite);
try {
if (!this.metaTypes.TryGetValue(type, out mtype)) {
// not known, so must be unmapped type
mtype = new UnmappedType(this, type);
this.metaTypes.Add(type, mtype);
}
}
finally {
@lock.ReleaseWriterLock();
}
return mtype;
}
public override MetaFunction GetFunction(MethodInfo method) {
if (method == null) {
throw new ArgumentNullException("method");
}
MetaFunction func = null;
this.metaFunctions.TryGetValue(new MetaPosition(method), out func);
return func;
}
public override IEnumerable<MetaFunction> GetFunctions() {
return this.metaFunctions.Values;
}
private Type GetRootType(Type type, TypeMapping rootMapping) {
if (string.Compare(rootMapping.Name, type.Name, StringComparison.Ordinal) == 0
|| string.Compare(rootMapping.Name, type.FullName, StringComparison.Ordinal) == 0
|| string.Compare(rootMapping.Name, type.AssemblyQualifiedName, StringComparison.Ordinal) == 0)
return type;
if (type.BaseType != typeof(object)) {
return this.GetRootType(type.BaseType, rootMapping);
}
throw Error.UnableToResolveRootForType(type);
}
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // name parameter will be found on a type.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // FindType method call.
private MethodInfo GetMethod(string name) {
string typeName, methodName;
this.GetTypeAndMethod(name, out typeName, out methodName);
Type type = this.FindType(typeName);
if (type != null) {
return type.GetMethod(methodName, BindingFlags.Instance|BindingFlags.Public|BindingFlags.NonPublic);
}
return null;
}
private void GetTypeAndMethod(string name, out string typeName, out string methodName) {
int dotIndex = name.LastIndexOf(".", StringComparison.CurrentCulture);
if (dotIndex > 0) {
typeName = name.Substring(0, dotIndex);
methodName = name.Substring(dotIndex + 1);
}
else {
typeName = this.contextType.FullName;
methodName = name;
}
}
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // name parameter is a type name.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // FindType method call.
internal Type FindType(string name) {
return this.FindType(name, this.contextType.Namespace);
}
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // name parameter is a type name.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // SearchForType method call.
internal Type FindType(string name, string defaultNamespace) {
Type result = null;
string name2 = null;
@lock.AcquireReaderLock(Timeout.Infinite);
try {
if (this.types.TryGetValue(name, out result)) {
return result;
}
name2 = name.Contains(".") ? null : defaultNamespace + "." + name;
if (name2 != null && this.types.TryGetValue(name2, out result)) {
return result;
}
}
finally {
@lock.ReleaseReaderLock();
}
// don't block anyone while we search for the correct type
Type foundResult = this.SearchForType(name);
if (foundResult == null && name2 != null) {
foundResult = this.SearchForType(name2);
}
if (foundResult != null) {
@lock.AcquireWriterLock(Timeout.Infinite);
try {
if (this.types.TryGetValue(name, out result)) {
return result;
}
this.types.Add(name, foundResult);
return foundResult;
}
finally {
@lock.ReleaseWriterLock();
}
}
return null;
}
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // name parameter is a type name.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // SearchForType method call.
private Type SearchForType(string name) {
// Try search for type using case sensitive.
Type type = SearchForType(name, false);
if (type != null) {
return type;
}
// Try search for type using case in-sensitive.
return SearchForType(name, true);
}
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // name parameter is a type name.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // Assembly.GetLoadedModules method call.
private Type SearchForType(string name, bool ignoreCase) {
// first try default system lookup
Type type = Type.GetType(name, false, ignoreCase);
if (type != null) {
return type;
}
// try all known modules (modules that other statically known types were found in)
foreach (Module module in this.modules) {
type = module.GetType(name, false, ignoreCase);
if (type != null) {
return type;
}
}
// try all loaded modules (is there a better way?)
foreach (Assembly a in AppDomain.CurrentDomain.GetAssemblies()) {
foreach (Module module in a.GetLoadedModules()) {
type = module.GetType(name, false, ignoreCase);
if (type != null) {
return type;
}
}
}
return null;
}
}
internal sealed class MappedTable : MetaTable {
MappedMetaModel model;
TableMapping mapping;
MetaType rowType;
bool hasMethods;
MethodInfo insertMethod;
MethodInfo updateMethod;
MethodInfo deleteMethod;
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // Parameter contains various type references.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // MappedRootType constructor call.
internal MappedTable(MappedMetaModel model, TableMapping mapping, Type rowType) {
this.model = model;
this.mapping = mapping;
this.rowType = new MappedRootType(model, this, mapping.RowType, rowType);
}
public override MetaModel Model {
get { return this.model; }
}
public override string TableName {
get { return this.mapping.TableName; }
}
public override MetaType RowType {
get { return this.rowType; }
}
public override MethodInfo InsertMethod {
get {
this.InitMethods();
return this.insertMethod;
}
}
public override MethodInfo UpdateMethod {
get {
this.InitMethods();
return this.updateMethod;
}
}
public override MethodInfo DeleteMethod {
get {
this.InitMethods();
return this.deleteMethod;
}
}
private void InitMethods() {
if (!this.hasMethods) {
this.insertMethod = MethodFinder.FindMethod(
this.model.ContextType,
"Insert" + rowType.Name,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
new Type[] { rowType.Type }
);
this.updateMethod = MethodFinder.FindMethod(
this.model.ContextType,
"Update" + rowType.Name,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
new Type[] { rowType.Type }
);
this.deleteMethod = MethodFinder.FindMethod(
this.model.ContextType,
"Delete" + rowType.Name,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
new Type[] { rowType.Type }
);
this.hasMethods = true;
}
}
}
internal sealed class MappedRootType : MappedType {
Dictionary<Type, MetaType> derivedTypes;
Dictionary<object, MetaType> inheritanceCodes;
ReadOnlyCollection<MetaType> inheritanceTypes;
MetaType inheritanceDefault;
bool hasInheritance;
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // Various parameters can contain type names.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // InitInheritedType method call.
public MappedRootType(MappedMetaModel model, MappedTable table, TypeMapping typeMapping, Type type)
: base(model, table, typeMapping, type, null) {
if (typeMapping == null)
throw Error.ArgumentNull("typeMapping");
if (typeMapping.InheritanceCode != null || typeMapping.DerivedTypes.Count > 0) {
if (this.Discriminator == null) {
throw Error.NoDiscriminatorFound(type.Name);
}
this.hasInheritance = true;
if (!MappingSystem.IsSupportedDiscriminatorType(this.Discriminator.Type)) {
throw Error.DiscriminatorClrTypeNotSupported(this.Discriminator.DeclaringType.Name, this.Discriminator.Name, this.Discriminator.Type);
}
this.derivedTypes = new Dictionary<Type, MetaType>();
this.inheritanceCodes = new Dictionary<object, MetaType>();
this.InitInheritedType(typeMapping, this);
}
if (this.inheritanceDefault == null && (this.inheritanceCode != null || this.inheritanceCodes != null && this.inheritanceCodes.Count > 0))
throw Error.InheritanceHierarchyDoesNotDefineDefault(type);
if (this.derivedTypes != null) {
this.inheritanceTypes = this.derivedTypes.Values.ToList().AsReadOnly();
}
else {
this.inheritanceTypes = new MetaType[] { this }.ToList().AsReadOnly();
}
this.Validate();
}
private void Validate() {
Dictionary<object, string> memberToColumn = new Dictionary<object, string>();
foreach (MetaType type in this.InheritanceTypes) {
// NB: Table node in XML can have only one Type node -- enforced by XSD
foreach (MetaDataMember mem in type.PersistentDataMembers) {
if (mem.IsDeclaredBy(type)) {
if (mem.IsDiscriminator && !this.HasInheritance) {
throw Error.NonInheritanceClassHasDiscriminator(type);
}
if (!mem.IsAssociation) {
// validate that no database column is mapped twice
if (!string.IsNullOrEmpty(mem.MappedName)) {
string column;
object dn = InheritanceRules.DistinguishedMemberName(mem.Member);
if (memberToColumn.TryGetValue(dn, out column)) {
if (column != mem.MappedName) {
throw Error.MemberMappedMoreThanOnce(mem.Member.Name);
}
}
else {
memberToColumn.Add(dn, mem.MappedName);
}
}
}
}
}
}
}
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // typeMap parameter's Name property.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // FindType method call.
private MetaType InitDerivedTypes(TypeMapping typeMap) {
Type type = ((MappedMetaModel)Model).FindType(typeMap.Name);
if (type == null)
throw Error.CouldNotFindRuntimeTypeForMapping(typeMap.Name);
MappedType rowType = new MappedType(this.Model, this.Table, typeMap, type, this);
return this.InitInheritedType(typeMap, rowType);
}
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // typeMap parameter's Name property.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // InitDerivedTypes method call.
private MetaType InitInheritedType(TypeMapping typeMap, MappedType type) {
this.derivedTypes.Add(type.Type, type);
if (typeMap.InheritanceCode != null) { // Mapping with no inheritance code: For example, an unmapped intermediate class in a hierarchy.
if (this.Discriminator == null)
throw Error.NoDiscriminatorFound(type.Name);
if (type.Type.IsAbstract)
throw Error.AbstractClassAssignInheritanceDiscriminator(type.Type);
object keyValue = DBConvert.ChangeType(typeMap.InheritanceCode, this.Discriminator.Type);
foreach (object d in inheritanceCodes.Keys) {
// if the keys are equal, or if they are both strings containing only spaces
// they are considered equal
if ((keyValue.GetType() == typeof(string) && ((string)keyValue).Trim().Length == 0 &&
d.GetType() == typeof(string) && ((string)d).Trim().Length == 0) ||
object.Equals(d, keyValue)) {
throw Error.InheritanceCodeUsedForMultipleTypes(keyValue);
}
}
if (type.inheritanceCode != null)
throw Error.InheritanceTypeHasMultipleDiscriminators(type);
type.inheritanceCode = keyValue;
this.inheritanceCodes.Add(keyValue, type);
if (typeMap.IsInheritanceDefault) {
if (this.inheritanceDefault != null)
throw Error.InheritanceTypeHasMultipleDefaults(type);
this.inheritanceDefault = type;
}
}
// init sub-inherited types
foreach (TypeMapping tm in typeMap.DerivedTypes) {
this.InitDerivedTypes(tm);
}
return type;
}
public override bool HasInheritance {
get { return this.hasInheritance; }
}
public override bool HasInheritanceCode {
get { return this.InheritanceCode != null; }
}
public override ReadOnlyCollection<MetaType> InheritanceTypes {
get { return this.inheritanceTypes; }
}
public override MetaType GetInheritanceType(Type type) {
if (type == this.Type)
return this;
MetaType metaType = null;
if (this.derivedTypes != null) {
this.derivedTypes.TryGetValue(type, out metaType);
}
return metaType;
}
public override MetaType InheritanceDefault {
get { return this.inheritanceDefault; }
}
}
internal class MappedType : MetaType {
MetaModel model;
MetaTable table;
Type type;
TypeMapping typeMapping;
Dictionary<object, MetaDataMember> dataMemberMap;
ReadOnlyCollection<MetaDataMember> dataMembers;
ReadOnlyCollection<MetaDataMember> persistentDataMembers;
ReadOnlyCollection<MetaDataMember> identities;
MetaDataMember dbGeneratedIdentity;
MetaDataMember version;
MetaDataMember discriminator;
MetaType inheritanceRoot;
bool inheritanceBaseSet;
MetaType inheritanceBase;
internal object inheritanceCode;
ReadOnlyCollection<MetaType> derivedTypes;
ReadOnlyCollection<MetaAssociation> associations;
bool hasMethods;
bool hasAnyLoadMethod;
bool hasAnyValidateMethod;
MethodInfo onLoadedMethod;
MethodInfo onValidateMethod;
object locktarget = new object(); // Hold locks on private object rather than public MetaType.
internal MappedType(MetaModel model, MetaTable table, TypeMapping typeMapping, Type type, MetaType inheritanceRoot) {
this.model = model;
this.table = table;
this.typeMapping = typeMapping;
this.type = type;
this.inheritanceRoot = inheritanceRoot != null ? inheritanceRoot : this;
this.InitDataMembers();
this.identities = this.dataMembers.Where(m => m.IsPrimaryKey).ToList().AsReadOnly();
this.persistentDataMembers = this.dataMembers.Where(m => m.IsPersistent).ToList().AsReadOnly();
}
#region Initialization
private void ValidatePrimaryKeyMember(MetaDataMember mm) {
//if the type is a sub-type, no member in the type can be primary key
if (mm.IsPrimaryKey && this.inheritanceRoot != this && mm.Member.DeclaringType == this.type) {
throw (Error.PrimaryKeyInSubTypeNotSupported(this.type.Name, mm.Name));
}
}
private void InitMethods() {
if (!this.hasMethods) {
this.onLoadedMethod = MethodFinder.FindMethod(
this.Type,
"OnLoaded",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
Type.EmptyTypes,
false
);
this.onValidateMethod = MethodFinder.FindMethod(
this.Type,
"OnValidate",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
new[] { typeof(ChangeAction) },
false
);
this.hasAnyLoadMethod = (this.onLoadedMethod != null) || (this.InheritanceBase != null && this.InheritanceBase.HasAnyLoadMethod);
this.hasAnyValidateMethod = (this.onValidateMethod != null) || (this.InheritanceBase != null && this.InheritanceBase.HasAnyValidateMethod);
this.hasMethods = true;
}
}
private void InitDataMembers() {
if (this.dataMembers == null) {
Dictionary<object, MetaDataMember> map = new Dictionary<object, MetaDataMember>();
List<MetaDataMember> dMembers = new List<MetaDataMember>();
int ordinal = 0;
BindingFlags flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy;
// Map of valid mapped names.
Dictionary<string, MemberMapping> names = new Dictionary<string, MemberMapping>();
Type currentType = this.type;
for (TypeMapping tm = this.typeMapping; tm != null; tm = tm.BaseType) {
foreach (MemberMapping mmap in tm.Members) {
names[mmap.MemberName + ":" + currentType.Name] = mmap;
}
currentType = currentType.BaseType;
}
HashSet<string> namesSeen = new HashSet<string>(); // Keep track of which names from the mapping file have been seen.
FieldInfo[] fis = TypeSystem.GetAllFields(this.type, flags).ToArray();
if (fis != null) {
foreach (FieldInfo fi in fis) {
MemberMapping mmap;
string name = fi.Name + ":" + fi.DeclaringType.Name;
if (names.TryGetValue(name, out mmap)) {
namesSeen.Add(name);
object dn = InheritanceRules.DistinguishedMemberName(fi);
MetaDataMember mm;
if (!map.TryGetValue(dn, out mm)) {
mm = new MappedDataMember(this, fi, mmap, ordinal);
map.Add(InheritanceRules.DistinguishedMemberName(mm.Member), mm);
dMembers.Add(mm);
this.InitSpecialMember(mm);
}
ValidatePrimaryKeyMember(mm);
ordinal++;
}
}
}
PropertyInfo[] pis = TypeSystem.GetAllProperties(this.type, flags).ToArray();
if (pis != null) {
foreach (PropertyInfo pi in pis) {
MemberMapping mmap;
string name = pi.Name + ":" + pi.DeclaringType.Name;
if (names.TryGetValue(name, out mmap)) {
namesSeen.Add(name);
MetaDataMember mm;
object dn = InheritanceRules.DistinguishedMemberName(pi);
if (!map.TryGetValue(dn, out mm)) {
mm = new MappedDataMember(this, pi, mmap, ordinal);
map.Add(InheritanceRules.DistinguishedMemberName(mm.Member), mm);
dMembers.Add(mm);
this.InitSpecialMember(mm);
}
ValidatePrimaryKeyMember(mm);
ordinal++;
}
}
}
this.dataMembers = dMembers.AsReadOnly();
this.dataMemberMap = map;
// Finally, make sure that all types in the mapping file were consumed.
foreach(string name in namesSeen) {
names.Remove(name);
}
foreach(var orphan in names) {
Type aboveRoot = inheritanceRoot.Type.BaseType;
while (aboveRoot!=null) {
foreach(MemberInfo mi in aboveRoot.GetMembers(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)) {
if(String.Compare(mi.Name, orphan.Value.MemberName, StringComparison.Ordinal)==0) {
throw Error.MappedMemberHadNoCorrespondingMemberInType(orphan.Value.MemberName, type.Name);
}
}
aboveRoot = aboveRoot.BaseType;
}
}
}
}
private void InitSpecialMember(MetaDataMember mm) {
// Can only have one auto gen member that is also an identity member,
// except if that member is a computed column (since they are implicitly auto gen)
if (mm.IsDbGenerated && mm.IsPrimaryKey && string.IsNullOrEmpty(mm.Expression)) {
if (this.dbGeneratedIdentity != null) {
throw Error.TwoMembersMarkedAsPrimaryKeyAndDBGenerated(mm.Member, this.dbGeneratedIdentity.Member);
}
this.dbGeneratedIdentity = mm;
}
if (mm.IsPrimaryKey && !MappingSystem.IsSupportedIdentityType(mm.Type))
{
throw Error.IdentityClrTypeNotSupported(mm.DeclaringType, mm.Name, mm.Type);
}
if (mm.IsVersion) {
if (this.version != null) {
throw Error.TwoMembersMarkedAsRowVersion(mm.Member, this.version.Member);
}
this.version = mm;
}
if (mm.IsDiscriminator) {
if (this.discriminator != null) {
if (!InheritanceRules.AreSameMember(this.discriminator.Member, mm.Member)) {
throw Error.TwoMembersMarkedAsInheritanceDiscriminator(mm.Member, this.discriminator.Member);
}
}
else {
this.discriminator = mm;
}
}
}
#endregion
public override MetaModel Model {
get { return this.model; }
}
public override MetaTable Table {
get { return this.table; }
}
public override Type Type {
get { return this.type; }
}
public override string Name {
get { return this.type.Name; }
}
public override bool IsEntity {
get {
if (this.table != null) {
return table.RowType.IdentityMembers.Count > 0;
}
return false;
}
}
public override bool CanInstantiate {
get { return !this.type.IsAbstract && (this == this.InheritanceRoot || this.HasInheritanceCode); }
}
public override MetaDataMember DBGeneratedIdentityMember {
get { return this.dbGeneratedIdentity; }
}
public override MetaDataMember VersionMember {
get { return this.version; }
}
public override MetaDataMember Discriminator {
get { return this.discriminator; }
}
public override bool HasUpdateCheck {
get {
foreach (MetaDataMember member in this.PersistentDataMembers) {
if (member.UpdateCheck != UpdateCheck.Never) {
return true;
}
}
return false;
}
}
public override bool HasInheritance {
get { return this.inheritanceRoot.HasInheritance; }
}
public override object InheritanceCode {
get { return this.inheritanceCode; }
}
public override bool HasInheritanceCode {
get { return this.InheritanceCode != null; }
}
public override bool IsInheritanceDefault {
get { return this.InheritanceDefault == this; }
}
public override MetaType InheritanceDefault {
get {
if (this.inheritanceRoot == this)
throw Error.CannotGetInheritanceDefaultFromNonInheritanceClass();
return this.InheritanceRoot.InheritanceDefault;
}
}
public override MetaType InheritanceRoot {
get { return this.inheritanceRoot; }
}
public override MetaType InheritanceBase {
get {
// LOCKING: Cannot initialize at construction
if (!this.inheritanceBaseSet && this.inheritanceBase == null) {
lock (this.locktarget) {
if (this.inheritanceBase == null) {
this.inheritanceBase = InheritanceBaseFinder.FindBase(this);
this.inheritanceBaseSet = true;
}
}
}
return this.inheritanceBase;
}
}
public override ReadOnlyCollection<MetaType> InheritanceTypes {
get { return this.inheritanceRoot.InheritanceTypes; }
}
public override ReadOnlyCollection<MetaType> DerivedTypes {
get {
// LOCKING: Cannot initialize at construction because derived types
// won't exist yet.
if (this.derivedTypes == null) {
lock (this.locktarget) {
if (this.derivedTypes == null) {
List<MetaType> dTypes = new List<MetaType>();
foreach (MetaType mt in this.InheritanceTypes) {
if (mt.Type.BaseType == this.type)
dTypes.Add(mt);
}
this.derivedTypes = dTypes.AsReadOnly();
}
}
}
return this.derivedTypes;
}
}
public override MetaType GetInheritanceType(Type inheritanceType) {
foreach (MetaType mt in this.InheritanceTypes)
if (mt.Type == inheritanceType)
return mt;
return null;
}
public override MetaType GetTypeForInheritanceCode(object key) {
if (this.InheritanceRoot.Discriminator.Type == typeof(string)) {
string skey = (string)key;
foreach (MetaType mt in this.InheritanceRoot.InheritanceTypes) {
if (string.Compare((string)mt.InheritanceCode, skey, StringComparison.OrdinalIgnoreCase) == 0)
return mt;
}
}
else {
foreach (MetaType mt in this.InheritanceRoot.InheritanceTypes) {
if (object.Equals(mt.InheritanceCode, key))
return mt;
}
}
return null;
}
public override ReadOnlyCollection<MetaDataMember> DataMembers {
get { return this.dataMembers; }
}
public override ReadOnlyCollection<MetaDataMember> PersistentDataMembers {
get { return this.persistentDataMembers; }
}
public override ReadOnlyCollection<MetaDataMember> IdentityMembers {
get { return this.identities; }
}
public override ReadOnlyCollection<MetaAssociation> Associations {
get {
// LOCKING: Associations are late-expanded so that cycles are broken.
if (this.associations == null) {
lock (this.locktarget) {
if (this.associations == null) {
this.associations = this.dataMembers.Where(m => m.IsAssociation).Select(m => m.Association).ToList().AsReadOnly();
}
}
}
return this.associations;
}
}
public override MetaDataMember GetDataMember(MemberInfo mi) {
if (mi == null)
throw Error.ArgumentNull("mi");
MetaDataMember mm;
if (this.dataMemberMap.TryGetValue(InheritanceRules.DistinguishedMemberName(mi), out mm)) {
return mm;
} else {
if (mi.DeclaringType.IsInterface) {
throw Error.MappingOfInterfacesMemberIsNotSupported(mi.DeclaringType.Name, mi.Name);
} else { //the member is not mapped in the base class
throw Error.UnmappedClassMember(mi.DeclaringType.Name, mi.Name);
}
}
}
public override MethodInfo OnLoadedMethod {
get {
this.InitMethods();
return this.onLoadedMethod;
}
}
public override MethodInfo OnValidateMethod {
get {
this.InitMethods();
return this.onValidateMethod;
}
}
public override bool HasAnyValidateMethod {
get {
this.InitMethods();
return this.hasAnyValidateMethod;
}
}
public override bool HasAnyLoadMethod {
get {
this.InitMethods();
return this.hasAnyLoadMethod;
}
}
public override string ToString() {
return this.Name;
}
}
internal sealed class MappedDataMember : MetaDataMember {
MetaType declaringType;
MemberInfo member;
MemberInfo storageMember;
int ordinal;
Type type;
bool hasAccessors;
MetaAccessor accPublic;
MetaAccessor accPrivate;
MetaAccessor accDefValue;
MetaAccessor accDefSource;
MemberMapping memberMap;
MappedAssociation assoc;
bool isNullableType;
bool isDeferred;
bool isPrimaryKey;
bool isVersion;
bool isDBGenerated;
bool isDiscriminator;
bool canBeNull = true;
string dbType;
string expression;
string mappedName;
UpdateCheck updateCheck = UpdateCheck.Never;
AutoSync autoSync = AutoSync.Never;
object locktarget = new object(); // Hold locks on private object rather than public MetaType.
bool hasLoadMethod;
MethodInfo loadMethod;
internal MappedDataMember(MetaType declaringType, MemberInfo mi, MemberMapping map, int ordinal) {
this.declaringType = declaringType;
this.member = mi;
this.ordinal = ordinal;
this.type = TypeSystem.GetMemberType(mi);
this.isNullableType = TypeSystem.IsNullableType(this.type);
this.memberMap = map;
if (this.memberMap != null && this.memberMap.StorageMemberName != null) {
MemberInfo[] mis = mi.DeclaringType.GetMember(this.memberMap.StorageMemberName, BindingFlags.Instance | BindingFlags.NonPublic);
if (mis == null || mis.Length != 1) {
throw Error.BadStorageProperty(this.memberMap.StorageMemberName, mi.DeclaringType, mi.Name);
}
this.storageMember = mis[0];
}
Type storageType = this.storageMember != null ? TypeSystem.GetMemberType(this.storageMember) : this.type;
this.isDeferred = IsDeferredType(storageType);
ColumnMapping cmap = map as ColumnMapping;
if (cmap != null && cmap.IsDbGenerated && cmap.IsPrimaryKey) {
// auto-gen identities must be synced on insert
if ((cmap.AutoSync != AutoSync.Default) && (cmap.AutoSync != AutoSync.OnInsert)) {
throw Error.IncorrectAutoSyncSpecification(mi.Name);
}
}
if (cmap != null) {
this.isPrimaryKey = cmap.IsPrimaryKey;
this.isVersion = cmap.IsVersion;
this.isDBGenerated = cmap.IsDbGenerated || !string.IsNullOrEmpty(cmap.Expression) || this.isVersion;
this.isDiscriminator = cmap.IsDiscriminator;
this.canBeNull = cmap.CanBeNull == null ? this.isNullableType || !this.type.IsValueType : (bool)cmap.CanBeNull;
this.dbType = cmap.DbType;
this.expression = cmap.Expression;
this.updateCheck = cmap.UpdateCheck;
// auto-gen keys are always and only synced on insert
if (this.IsDbGenerated && this.IsPrimaryKey) {
this.autoSync = AutoSync.OnInsert;
}
else if (cmap.AutoSync != AutoSync.Default) {
// if the user has explicitly set it, use their value
this.autoSync = cmap.AutoSync;
}
else if (this.IsDbGenerated) {
// database generated members default to always
this.autoSync = AutoSync.Always;
}
}
this.mappedName = this.memberMap.DbName != null ? this.memberMap.DbName : this.member.Name;
}
private void InitAccessors() {
if (!this.hasAccessors) {
lock (this.locktarget) {
if (!this.hasAccessors) {
if (this.storageMember != null) {
this.accPrivate = MakeMemberAccessor(this.member.ReflectedType, this.storageMember, null);
if (this.isDeferred) {
MakeDeferredAccessors(this.member.ReflectedType, this.accPrivate, out this.accPrivate, out this.accDefValue, out this.accDefSource);
}
this.accPublic = MakeMemberAccessor(this.member.ReflectedType, this.member, this.accPrivate);
}
else {
this.accPublic = this.accPrivate = MakeMemberAccessor(this.member.ReflectedType, this.member, null);
if (this.isDeferred) {
MakeDeferredAccessors(this.member.ReflectedType, this.accPrivate, out this.accPrivate, out this.accDefValue, out this.accDefSource);
}
}
this.hasAccessors = true;
}
}
}
}
public override MetaType DeclaringType {
get { return this.declaringType; }
}
public override bool IsDeclaredBy(MetaType metaType) {
if (metaType == null) {
throw Error.ArgumentNull("metaType");
}
return metaType.Type == this.member.DeclaringType;
}
public override MemberInfo Member {
get { return this.member; }
}
public override MemberInfo StorageMember {
get { return this.storageMember; }
}
public override string Name {
get { return this.member.Name; }
}
public override int Ordinal {
get { return this.ordinal; }
}
public override Type Type {
get { return this.type; }
}
public override MetaAccessor MemberAccessor {
get {
this.InitAccessors();
return this.accPublic;
}
}
public override MetaAccessor StorageAccessor {
get {
this.InitAccessors();
return this.accPrivate;
}
}
public override MetaAccessor DeferredValueAccessor {
get {
this.InitAccessors();
return this.accDefValue;
}
}
public override MetaAccessor DeferredSourceAccessor {
get {
this.InitAccessors();
return this.accDefSource;
}
}
public override bool IsDeferred {
get { return this.isDeferred; }
}
public override bool IsPersistent {
get { return this.memberMap != null; }
}
public override bool IsAssociation {
get { return this.memberMap is AssociationMapping; }
}
public override bool IsPrimaryKey {
get { return this.isPrimaryKey; }
}
/// <summary>
/// Returns true if the member is explicitly marked as auto gen, or if the
/// member is computed or generated by the database server.
/// </summary>
public override bool IsDbGenerated {
get { return this.isDBGenerated; }
}
public override bool IsVersion {
get { return this.isVersion; }
}
public override bool IsDiscriminator {
get { return this.isDiscriminator; }
}
public override bool CanBeNull {
get { return this.canBeNull; }
}
public override string DbType {
get { return this.dbType; }
}
public override string Expression {
get { return this.expression; }
}
public override string MappedName {
get { return this.mappedName; }
}
public override UpdateCheck UpdateCheck {
get { return this.updateCheck; }
}
public override AutoSync AutoSync {
get { return this.autoSync; }
}
public override MetaAssociation Association {
get {
if (this.IsAssociation) {
// LOCKING: This deferral isn't an optimization. It can't be done in the constructor
// because there may be loops in the association graph.
if (this.assoc == null) {
lock (this.locktarget) {
if (this.assoc == null) {
this.assoc = new MappedAssociation(this, (AssociationMapping)this.memberMap);
}
}
}
}
return this.assoc;
}
}
public override MethodInfo LoadMethod {
get {
if (this.hasLoadMethod == false && this.IsDeferred) {
// defer searching for this access method until we really need to know
this.loadMethod = MethodFinder.FindMethod(
((MappedMetaModel)this.declaringType.Model).ContextType,
"Load" + this.member.Name,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
new Type[] { this.DeclaringType.Type }
);
this.hasLoadMethod = true;
}
return this.loadMethod;
}
}
private bool IsDeferredType(Type clrType) {
if (clrType == null || clrType == typeof(object)) {
return false;
}
if (clrType.IsGenericType) {
Type gtype = clrType.GetGenericTypeDefinition();
return gtype == typeof(Link<>) ||
typeof(EntitySet<>).IsAssignableFrom(gtype) ||
typeof(EntityRef<>).IsAssignableFrom(gtype) ||
IsDeferredType(clrType.BaseType);
}
return false;
}
private static MetaAccessor MakeMemberAccessor(Type accessorType, MemberInfo mi, MetaAccessor storage) {
FieldInfo fi = mi as FieldInfo;
MetaAccessor acc = null;
if (fi != null) {
acc = FieldAccessor.Create(accessorType, fi);
}
else {
PropertyInfo pi = (PropertyInfo)mi;
acc = PropertyAccessor.Create(accessorType, pi, storage);
}
return acc;
}
[MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.NoOptimization)]
private static void MakeDeferredAccessors(
Type declaringType, MetaAccessor accessor,
out MetaAccessor accessorValue, out MetaAccessor accessorDeferredValue, out MetaAccessor accessorDeferredSource
) {
if (accessor.Type.IsGenericType) {
Type gtype = accessor.Type.GetGenericTypeDefinition();
Type itemType = accessor.Type.GetGenericArguments()[0];
if (gtype == typeof(Link<>)) {
accessorValue = CreateAccessor(typeof(LinkValueAccessor<,>).MakeGenericType(declaringType, itemType), accessor);
accessorDeferredValue = CreateAccessor(typeof(LinkDefValueAccessor<,>).MakeGenericType(declaringType, itemType), accessor);
accessorDeferredSource = CreateAccessor(typeof(LinkDefSourceAccessor<,>).MakeGenericType(declaringType, itemType), accessor);
return;
}
else if (typeof(EntityRef<>).IsAssignableFrom(gtype)) {
accessorValue = CreateAccessor(typeof(EntityRefValueAccessor<,>).MakeGenericType(declaringType, itemType), accessor);
accessorDeferredValue = CreateAccessor(typeof(EntityRefDefValueAccessor<,>).MakeGenericType(declaringType, itemType), accessor);
accessorDeferredSource = CreateAccessor(typeof(EntityRefDefSourceAccessor<,>).MakeGenericType(declaringType, itemType), accessor);
return;
}
else if (typeof(EntitySet<>).IsAssignableFrom(gtype)) {
accessorValue = CreateAccessor(typeof(EntitySetValueAccessor<,>).MakeGenericType(declaringType, itemType), accessor);
accessorDeferredValue = CreateAccessor(typeof(EntitySetDefValueAccessor<,>).MakeGenericType(declaringType, itemType), accessor);
accessorDeferredSource = CreateAccessor(typeof(EntitySetDefSourceAccessor<,>).MakeGenericType(declaringType, itemType), accessor);
return;
}
}
throw Error.UnhandledDeferredStorageType(accessor.Type);
}
private static MetaAccessor CreateAccessor(Type accessorType, params object[] args) {
return (MetaAccessor)Activator.CreateInstance(accessorType, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, args, null);
}
}
internal class MappedAssociation : MetaAssociationImpl {
MappedDataMember thisMember;
MetaDataMember otherMember;
MetaType otherType;
ReadOnlyCollection<MetaDataMember> thisKey;
ReadOnlyCollection<MetaDataMember> otherKey;
bool isMany;
bool isForeignKey;
bool isNullable;
bool thisKeyIsPrimaryKey;
bool otherKeyIsPrimaryKey;
AssociationMapping assocMap;
internal MappedAssociation(MappedDataMember mm, AssociationMapping assocMap) {
this.thisMember = mm;
this.assocMap = assocMap;
this.Init();
this.InitOther();
//validate the number of ThisKey columns is the same as the number of OtherKey columns
if (this.thisKey.Count != this.otherKey.Count && this.thisKey.Count > 0 && this.otherKey.Count > 0) {
throw Error.MismatchedThisKeyOtherKey(thisMember.Name, thisMember.DeclaringType.Name);
}
}
#region Initialization
private void Init() {
this.isMany = TypeSystem.IsSequenceType(this.thisMember.Type);
this.thisKey = (this.assocMap.ThisKey != null)
? MakeKeys(this.thisMember.DeclaringType, this.assocMap.ThisKey)
: this.thisMember.DeclaringType.IdentityMembers;
// this association refers to the parent if thisKey is not our own identity
this.thisKeyIsPrimaryKey = AreEqual(this.thisKey, this.thisMember.DeclaringType.IdentityMembers);
this.isForeignKey = this.assocMap.IsForeignKey;
// if any key members are not nullable, the association is not nullable
this.isNullable = true;
foreach (MetaDataMember mm in this.thisKey) {
if (mm == null)
throw Error.UnexpectedNull("MetaDataMember");
if (!mm.CanBeNull) {
this.isNullable = false;
break;
}
}
// validate DeleteOnNull specification
if (assocMap.DeleteOnNull == true) {
if (!(isForeignKey && !isMany && !isNullable)) {
throw Error.InvalidDeleteOnNullSpecification(thisMember);
}
}
}
private void InitOther() {
if (this.otherType == null) {
Type ot = this.isMany ? TypeSystem.GetElementType(this.thisMember.Type) : this.thisMember.Type;
this.otherType = this.thisMember.DeclaringType.Model.GetMetaType(ot);
System.Diagnostics.Debug.Assert(this.otherType.IsEntity);
this.otherKey = (assocMap.OtherKey != null)
? MakeKeys(this.otherType, this.assocMap.OtherKey)
: this.otherType.IdentityMembers;
this.otherKeyIsPrimaryKey = AreEqual(this.otherKey, this.otherType.IdentityMembers);
foreach (MetaDataMember omm in this.otherType.DataMembers) {
if (omm.IsAssociation && omm != this.thisMember && omm.MappedName == this.thisMember.MappedName) {
this.otherMember = omm;
break;
}
}
}
}
#endregion
public override MetaDataMember ThisMember {
get { return this.thisMember; }
}
public override ReadOnlyCollection<MetaDataMember> ThisKey {
get { return this.thisKey; }
}
public override MetaDataMember OtherMember {
get { return this.otherMember; }
}
public override ReadOnlyCollection<MetaDataMember> OtherKey {
get { return this.otherKey; }
}
public override MetaType OtherType {
get { return this.otherType; }
}
public override bool IsMany {
get { return this.isMany; }
}
public override bool IsForeignKey {
get { return this.isForeignKey; }
}
public override bool IsUnique {
get { return this.assocMap.IsUnique; }
}
public override bool IsNullable {
get { return this.isNullable; }
}
public override bool ThisKeyIsPrimaryKey {
get { return this.thisKeyIsPrimaryKey; }
}
public override bool OtherKeyIsPrimaryKey {
get { return this.otherKeyIsPrimaryKey; }
}
public override string DeleteRule {
get {
return this.assocMap.DeleteRule;
}
}
public override bool DeleteOnNull {
get {
return this.assocMap.DeleteOnNull;
}
}
}
class MappedFunction : MetaFunction {
MetaModel model;
FunctionMapping map;
MethodInfo method;
ReadOnlyCollection<MetaParameter> parameters;
MetaParameter returnParameter;
ReadOnlyCollection<MetaType> rowTypes;
static ReadOnlyCollection<MetaParameter> _emptyParameters = new List<MetaParameter>(0).AsReadOnly();
static ReadOnlyCollection<MetaType> _emptyTypes = new List<MetaType>(0).AsReadOnly();
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // map parameter contains type names.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // FindType method call.
internal MappedFunction(MappedMetaModel model, FunctionMapping map, MethodInfo method) {
this.model = model;
this.map = map;
this.method = method;
this.rowTypes = _emptyTypes;
if (map.Types.Count == 0 && this.method.ReturnType == typeof(IMultipleResults)) {
throw Error.NoResultTypesDeclaredForFunction(method.Name);
}
else if (map.Types.Count > 1 && this.method.ReturnType != typeof(IMultipleResults)) {
throw Error.TooManyResultTypesDeclaredForFunction(method.Name);
}
else if (map.Types.Count == 1 && this.method.ReturnType != typeof(IMultipleResults)) {
Type elementType = TypeSystem.GetElementType(method.ReturnType);
this.rowTypes = new List<MetaType>(1) { this.GetMetaType(map.Types[0], elementType) }.AsReadOnly();
}
else if (map.Types.Count > 0) {
List<MetaType> rowTypes = new List<MetaType>();
foreach (TypeMapping rtm in map.Types) {
Type elementType = model.FindType(rtm.Name);
if (elementType == null) {
throw Error.CouldNotFindElementTypeInModel(rtm.Name);
}
MetaType mt = this.GetMetaType(rtm, elementType);
// Only add unique meta types
if (!rowTypes.Contains(mt)) {
rowTypes.Add(mt);
}
}
this.rowTypes = rowTypes.AsReadOnly();
}
else if (map.FunReturn != null) {
this.returnParameter = new MappedReturnParameter(method.ReturnParameter, map.FunReturn);
}
// Parameters.
ParameterInfo[] pis = this.method.GetParameters();
if (pis.Length > 0) {
List<MetaParameter> mps = new List<MetaParameter>(pis.Length);
if (this.map.Parameters.Count != pis.Length) {
throw Error.IncorrectNumberOfParametersMappedForMethod(this.map.MethodName);
}
for (int i = 0; i < pis.Length; i++) {
mps.Add(new MappedParameter(pis[i], this.map.Parameters[i]));
}
this.parameters = mps.AsReadOnly();
}
else {
this.parameters = _emptyParameters;
}
}
/// <summary>
/// For the specified type, if it is a mapped type, use the Table
/// metatype to get the correct inheritance metatype,
/// otherwise create a new meta type.
[ResourceExposure(ResourceScope.Assembly | ResourceScope.Machine)] // Parameter contains various type references.
[ResourceConsumption(ResourceScope.Assembly | ResourceScope.Machine)] // MappedRootType constructor call.
private MetaType GetMetaType(TypeMapping tm, Type elementType) {
MetaTable tbl = model.GetTable(elementType);
if (tbl != null) {
return tbl.RowType.GetInheritanceType(elementType);
}
return new MappedRootType((MappedMetaModel)model, null, tm, elementType);
}
public override ReadOnlyCollection<MetaParameter> Parameters {
get { return this.parameters; }
}
public override string MappedName {
get { return this.map.Name; }
}
public override MethodInfo Method {
get { return this.method; }
}
public override MetaModel Model {
get { return this.model; }
}
public override string Name {
get { return this.method.Name; }
}
public override bool IsComposable {
get { return this.map.IsComposable; }
}
public override MetaParameter ReturnParameter {
get { return this.returnParameter; }
}
public override bool HasMultipleResults {
get { return this.method.ReturnType == typeof(IMultipleResults); }
}
public override ReadOnlyCollection<MetaType> ResultRowTypes {
get { return this.rowTypes; }
}
}
internal sealed class MappedParameter : MetaParameter {
private ParameterInfo parameterInfo;
private ParameterMapping map;
public MappedParameter(ParameterInfo parameterInfo, ParameterMapping map) {
this.parameterInfo = parameterInfo;
this.map = map;
}
public override ParameterInfo Parameter {
get { return this.parameterInfo; }
}
public override string Name {
get { return this.parameterInfo.Name; }
}
public override string MappedName {
get { return this.map.Name; }
}
public override Type ParameterType {
get { return this.parameterInfo.ParameterType; }
}
public override string DbType {
get { return this.map.DbType; }
}
}
internal sealed class MappedReturnParameter : MetaParameter {
private ParameterInfo parameterInfo;
private ReturnMapping map;
public MappedReturnParameter(ParameterInfo parameterInfo, ReturnMapping map) {
this.parameterInfo = parameterInfo;
this.map = map;
}
public override ParameterInfo Parameter {
get { return this.parameterInfo; }
}
public override string Name {
get { return null; }
}
public override string MappedName {
get { return null; }
}
public override Type ParameterType {
get { return this.parameterInfo.ParameterType; }
}
public override string DbType {
get { return this.map.DbType; }
}
}
internal abstract class MetaAssociationImpl : MetaAssociation {
private static char[] keySeparators = new char[] { ',' };
/// <summary>
/// Given a MetaType and a set of key fields, return the set of MetaDataMembers
/// corresponding to the key.
/// </summary>
protected static ReadOnlyCollection<MetaDataMember> MakeKeys(MetaType mtype, string keyFields) {
string[] names = keyFields.Split(keySeparators);
MetaDataMember[] members = new MetaDataMember[names.Length];
for (int i = 0; i < names.Length; i++) {
names[i] = names[i].Trim();
MemberInfo[] rmis = mtype.Type.GetMember(names[i], BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
if (rmis == null || rmis.Length != 1) {
throw Error.BadKeyMember(names[i], keyFields, mtype.Name);
}
members[i] = mtype.GetDataMember(rmis[0]);
if (members[i] == null) {
throw Error.BadKeyMember(names[i], keyFields, mtype.Name);
}
}
return new List<MetaDataMember>(members).AsReadOnly();
}
/// <summary>
/// Compare two sets of keys for equality.
/// </summary>
protected static bool AreEqual(IEnumerable<MetaDataMember> key1, IEnumerable<MetaDataMember> key2) {
using (IEnumerator<MetaDataMember> e1 = key1.GetEnumerator()) {
using (IEnumerator<MetaDataMember> e2 = key2.GetEnumerator()) {
bool m1, m2;
for (m1 = e1.MoveNext(), m2 = e2.MoveNext(); m1 && m2; m1 = e1.MoveNext(), m2 = e2.MoveNext()) {
if (e1.Current != e2.Current)
return false;
}
if (m1 != m2)
return false;
}
}
return true;
}
public override string ToString() {
return string.Format(Globalization.CultureInfo.InvariantCulture, "{0} ->{1} {2}", ThisMember.DeclaringType.Name, IsMany ? "*" : "", OtherType.Name);
}
}
internal sealed class UnmappedType : MetaType {
MetaModel model;
Type type;
Dictionary<object, MetaDataMember> dataMemberMap;
ReadOnlyCollection<MetaDataMember> dataMembers;
ReadOnlyCollection<MetaType> inheritanceTypes;
object locktarget = new object(); // Hold locks on private object rather than public MetaType.
private static ReadOnlyCollection<MetaType> _emptyTypes = new List<MetaType>().AsReadOnly();
private static ReadOnlyCollection<MetaDataMember> _emptyDataMembers = new List<MetaDataMember>().AsReadOnly();
private static ReadOnlyCollection<MetaAssociation> _emptyAssociations = new List<MetaAssociation>().AsReadOnly();
internal UnmappedType(MetaModel model, Type type) {
this.model = model;
this.type = type;
}
public override MetaModel Model {
get { return this.model; }
}
public override MetaTable Table {
get { return null; }
}
public override Type Type {
get { return this.type; }
}
public override string Name {
get { return this.type.Name; }
}
public override bool IsEntity {
get { return false; }
}
public override bool CanInstantiate {
get { return !this.type.IsAbstract; }
}
public override MetaDataMember DBGeneratedIdentityMember {
get { return null; }
}
public override MetaDataMember VersionMember {
get { return null; }
}
public override MetaDataMember Discriminator {
get { return null; }
}
public override bool HasUpdateCheck {
get { return false; }
}
public override ReadOnlyCollection<MetaType> InheritanceTypes {
get {
if (this.inheritanceTypes == null) {
lock (this.locktarget) {
if (this.inheritanceTypes == null) {
this.inheritanceTypes = new MetaType[] { this }.ToList().AsReadOnly();
}
}
}
return this.inheritanceTypes;
}
}
public override MetaType GetInheritanceType(Type inheritanceType) {
if (inheritanceType == this.type)
return this;
return null;
}
public override ReadOnlyCollection<MetaType> DerivedTypes {
get { return _emptyTypes; }
}
public override MetaType GetTypeForInheritanceCode(object key) {
return null;
}
public override bool HasInheritance {
get { return false; }
}
public override bool HasInheritanceCode {
get { return false; }
}
public override object InheritanceCode {
get { return null; }
}
public override MetaType InheritanceRoot {
get { return this; }
}
public override MetaType InheritanceBase {
get { return null; }
}
public override MetaType InheritanceDefault {
get { return null; }
}
public override bool IsInheritanceDefault {
get { return false; }
}
public override ReadOnlyCollection<MetaDataMember> DataMembers {
get {
this.InitDataMembers();
return this.dataMembers;
}
}
public override ReadOnlyCollection<MetaDataMember> PersistentDataMembers {
get { return _emptyDataMembers; }
}
public override ReadOnlyCollection<MetaDataMember> IdentityMembers {
get {
this.InitDataMembers();
return this.dataMembers;
}
}
public override ReadOnlyCollection<MetaAssociation> Associations {
get { return _emptyAssociations; }
}
public override MetaDataMember GetDataMember(MemberInfo mi) {
if (mi == null)
throw Error.ArgumentNull("mi");
this.InitDataMembers();
if (this.dataMemberMap == null) {
lock (this.locktarget) {
if (this.dataMemberMap == null) {
Dictionary<object, MetaDataMember> map = new Dictionary<object, MetaDataMember>();
foreach (MetaDataMember mm in this.dataMembers) {
map.Add(InheritanceRules.DistinguishedMemberName(mm.Member), mm);
}
this.dataMemberMap = map;
}
}
}
object dn = InheritanceRules.DistinguishedMemberName(mi);
MetaDataMember mdm;
this.dataMemberMap.TryGetValue(dn, out mdm);
return mdm;
}
private void InitDataMembers() {
if (this.dataMembers == null) {
lock (this.locktarget) {
if (this.dataMembers == null) {
List<MetaDataMember> dMembers = new List<MetaDataMember>();
int ordinal = 0;
BindingFlags flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy;
foreach (FieldInfo fi in this.type.GetFields(flags)) {
MetaDataMember mm = new UnmappedDataMember(this, fi, ordinal);
dMembers.Add(mm);
ordinal++;
}
foreach (PropertyInfo pi in this.type.GetProperties(flags)) {
MetaDataMember mm = new UnmappedDataMember(this, pi, ordinal);
dMembers.Add(mm);
ordinal++;
}
this.dataMembers = dMembers.AsReadOnly();
}
}
}
}
public override string ToString() {
return this.Name;
}
public override MethodInfo OnLoadedMethod {
get { return null; }
}
public override MethodInfo OnValidateMethod {
get { return null; }
}
public override bool HasAnyValidateMethod {
get {
return false;
}
}
public override bool HasAnyLoadMethod {
get {
return false;
}
}
}
internal sealed class UnmappedDataMember : MetaDataMember {
MetaType declaringType;
MemberInfo member;
int ordinal;
Type type;
MetaAccessor accPublic;
object lockTarget = new object();
internal UnmappedDataMember(MetaType declaringType, MemberInfo mi, int ordinal) {
this.declaringType = declaringType;
this.member = mi;
this.ordinal = ordinal;
this.type = TypeSystem.GetMemberType(mi);
}
private void InitAccessors() {
if (this.accPublic == null) {
lock (this.lockTarget) {
if (this.accPublic == null) {
this.accPublic = MakeMemberAccessor(this.member.ReflectedType, this.member);
}
}
}
}
public override MetaType DeclaringType {
get { return this.declaringType; }
}
public override bool IsDeclaredBy(MetaType metaType) {
if (metaType == null) {
throw Error.ArgumentNull("metaType");
}
return metaType.Type == this.member.DeclaringType;
}
public override MemberInfo Member {
get { return this.member; }
}
public override MemberInfo StorageMember {
get { return this.member; }
}
public override string Name {
get { return this.member.Name; }
}
public override int Ordinal {
get { return this.ordinal; }
}
public override Type Type {
get { return this.type; }
}
public override MetaAccessor MemberAccessor {
get {
this.InitAccessors();
return this.accPublic;
}
}
public override MetaAccessor StorageAccessor {
get {
this.InitAccessors();
return this.accPublic;
}
}
public override MetaAccessor DeferredValueAccessor {
get { return null; }
}
public override MetaAccessor DeferredSourceAccessor {
get { return null; }
}
public override bool IsDeferred {
get { return false; }
}
public override bool IsPersistent {
get { return false; }
}
public override bool IsAssociation {
get { return false; }
}
public override bool IsPrimaryKey {
get { return false; }
}
public override bool IsDbGenerated {
get { return false; }
}
public override bool IsVersion {
get { return false; }
}
public override bool IsDiscriminator {
get { return false; }
}
public override bool CanBeNull {
get { return !this.type.IsValueType || TypeSystem.IsNullableType(this.type); }
}
public override string DbType {
get { return null; }
}
public override string Expression {
get { return null; }
}
public override string MappedName {
get { return this.member.Name; }
}
public override UpdateCheck UpdateCheck {
get { return UpdateCheck.Never; }
}
public override AutoSync AutoSync {
get { return AutoSync.Never; }
}
public override MetaAssociation Association {
get { return null; }
}
public override MethodInfo LoadMethod {
get { return null; }
}
private static MetaAccessor MakeMemberAccessor(Type accessorType, MemberInfo mi) {
FieldInfo fi = mi as FieldInfo;
MetaAccessor acc = null;
if (fi != null) {
acc = FieldAccessor.Create(accessorType, fi);
}
else {
PropertyInfo pi = (PropertyInfo)mi;
acc = PropertyAccessor.Create(accessorType, pi, null);
}
return acc;
}
}
}
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