Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Mapping / StorageFunctionMapping.cs / 1407647 / StorageFunctionMapping.cs
//----------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// @owner [....]
// @backupOwner [....]
//---------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text;
using System.Data.Metadata.Edm;
using System.Diagnostics;
using System.Globalization;
using System.Data.Common.Utils;
using System.Linq;
namespace System.Data.Mapping {
///
/// Describes function mappings for an association set.
///
internal sealed class StorageAssociationSetFunctionMapping {
internal StorageAssociationSetFunctionMapping(
AssociationSet associationSet,
StorageFunctionMapping deleteFunctionMapping,
StorageFunctionMapping insertFunctionMapping) {
this.AssociationSet = EntityUtil.CheckArgumentNull(associationSet, "associationSet");
this.DeleteFunctionMapping = deleteFunctionMapping;
this.InsertFunctionMapping = insertFunctionMapping;
}
///
/// Association set these functions handles.
///
internal readonly AssociationSet AssociationSet;
///
/// Delete function for this association set.
///
internal readonly StorageFunctionMapping DeleteFunctionMapping;
///
/// Insert function for this association set.
///
internal readonly StorageFunctionMapping InsertFunctionMapping;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"AS{{{0}}}:{3}DFunc={{{1}}},{3}IFunc={{{2}}}", AssociationSet, DeleteFunctionMapping,
InsertFunctionMapping, Environment.NewLine + " ");
}
internal void Print(int index)
{
StorageEntityContainerMapping.GetPrettyPrintString(ref index);
StringBuilder sb = new StringBuilder();
sb.Append("Association Set Function Mapping");
sb.Append(" ");
sb.Append(this.ToString());
Console.WriteLine(sb.ToString());
}
}
///
/// Describes function mappings for an entity type within an entity set.
///
internal sealed class StorageEntityTypeFunctionMapping {
internal StorageEntityTypeFunctionMapping(
EntityType entityType,
StorageFunctionMapping deleteFunctionMapping,
StorageFunctionMapping insertFunctionMapping,
StorageFunctionMapping updateFunctionMapping) {
this.EntityType = EntityUtil.CheckArgumentNull(entityType, "entityType");
this.DeleteFunctionMapping = deleteFunctionMapping;
this.InsertFunctionMapping = insertFunctionMapping;
this.UpdateFunctionMapping = updateFunctionMapping;
}
///
/// Gets (specific) entity type these functions handle.
///
internal readonly EntityType EntityType;
///
/// Gets delete function for the current entity type.
///
internal readonly StorageFunctionMapping DeleteFunctionMapping;
///
/// Gets insert function for the current entity type.
///
internal readonly StorageFunctionMapping InsertFunctionMapping;
///
/// Gets update function for the current entity type.
///
internal readonly StorageFunctionMapping UpdateFunctionMapping;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"ET{{{0}}}:{4}DFunc={{{1}}},{4}IFunc={{{2}}},{4}UFunc={{{3}}}", EntityType, DeleteFunctionMapping,
InsertFunctionMapping, UpdateFunctionMapping, Environment.NewLine + " ");
}
internal void Print(int index)
{
StorageEntityContainerMapping.GetPrettyPrintString(ref index);
StringBuilder sb = new StringBuilder();
sb.Append("Entity Type Function Mapping");
sb.Append(" ");
sb.Append(this.ToString());
Console.WriteLine(sb.ToString());
}
}
///
/// Describes function binding for change processing of entities or associations.
///
internal sealed class StorageFunctionMapping {
internal StorageFunctionMapping(EntitySetBase entitySet, EntityTypeBase entityType, EdmFunction function, IEnumerable parameterBindings,
FunctionParameter rowsAffectedParameter, IEnumerable resultBindings) {
EntityUtil.CheckArgumentNull(entitySet, "entitySet");
this.Function = EntityUtil.CheckArgumentNull(function, "function");
this.RowsAffectedParameter = rowsAffectedParameter;
this.ParameterBindings = EntityUtil.CheckArgumentNull(parameterBindings, "parameterBindings")
.ToList().AsReadOnly();
if (null != resultBindings) {
List bindings = resultBindings.ToList();
if (0 < bindings.Count) {
ResultBindings = bindings.AsReadOnly();
}
}
this.CollocatedAssociationSetEnds = GetReferencedAssociationSetEnds(entitySet as EntitySet, entityType as EntityType, parameterBindings)
.ToList()
.AsReadOnly();
}
///
/// Gets output parameter producing number of rows affected. May be null.
///
internal readonly FunctionParameter RowsAffectedParameter;
///
/// Gets Metadata of function to which we should bind.
///
internal readonly EdmFunction Function;
///
/// Gets bindings for function parameters.
///
internal readonly ReadOnlyCollection ParameterBindings;
///
/// Gets all association set ends collocated in this mapping.
///
internal readonly ReadOnlyCollection CollocatedAssociationSetEnds;
///
/// Gets bindings for the results of function evaluation.
///
internal readonly ReadOnlyCollection ResultBindings;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"Func{{{0}}}: Prm={{{1}}}, Result={{{2}}}", Function,
StringUtil.ToCommaSeparatedStringSorted(ParameterBindings),
StringUtil.ToCommaSeparatedStringSorted(ResultBindings));
}
// requires: entitySet must not be null
// Yields all referenced association set ends in this mapping.
private static IEnumerable GetReferencedAssociationSetEnds(EntitySet entitySet, EntityType entityType, IEnumerable parameterBindings)
{
HashSet ends = new HashSet();
if (null != entitySet && null != entityType)
{
foreach (StorageFunctionParameterBinding parameterBinding in parameterBindings)
{
AssociationSetEnd end = parameterBinding.MemberPath.AssociationSetEnd;
if (null != end)
{
ends.Add(end);
}
}
// If there is a referential constraint, it counts as an implicit mapping of
// the association set
foreach (AssociationSet assocationSet in MetadataHelper.GetAssociationsForEntitySet(entitySet))
{
ReadOnlyMetadataCollection constraints = assocationSet.ElementType.ReferentialConstraints;
if (null != constraints)
{
foreach (ReferentialConstraint constraint in constraints)
{
if ( (assocationSet.AssociationSetEnds[constraint.ToRole.Name].EntitySet == entitySet) &&
(constraint.ToRole.GetEntityType().IsAssignableFrom(entityType)))
{
ends.Add(assocationSet.AssociationSetEnds[constraint.FromRole.Name]);
}
}
}
}
}
return ends;
}
}
///
/// Defines a binding from a named result set column to a member taking the value.
///
internal sealed class StorageFunctionResultBinding {
internal StorageFunctionResultBinding(string columnName, EdmProperty property) {
this.ColumnName = EntityUtil.CheckArgumentNull(columnName, "columnName");
this.Property = EntityUtil.CheckArgumentNull(property, "property");
}
///
/// Gets the name of the column to bind from the function result set. We use a string
/// value rather than EdmMember, since there is no metadata for function result sets.
///
internal readonly string ColumnName;
///
/// Gets the property to be set on the entity.
///
internal readonly EdmProperty Property;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"{0}->{1}", ColumnName, Property);
}
}
///
/// Binds a function parameter to a member of the entity or association being modified.
///
internal sealed class StorageFunctionParameterBinding
{
internal StorageFunctionParameterBinding(FunctionParameter parameter, StorageFunctionMemberPath memberPath, bool isCurrent) {
this.Parameter = EntityUtil.CheckArgumentNull(parameter, "parameter");
this.MemberPath = EntityUtil.CheckArgumentNull(memberPath, "memberPath");
this.IsCurrent = isCurrent;
}
///
/// Gets the parameter taking the value.
///
internal readonly FunctionParameter Parameter;
///
/// Gets the path to the entity or association member defining the value.
///
internal readonly StorageFunctionMemberPath MemberPath;
///
/// Gets a value indicating whether the current or original
/// member value is being bound.
///
internal readonly bool IsCurrent;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"@{0}->{1}{2}", Parameter, IsCurrent ? "+" : "-", MemberPath);
}
}
///
/// Describes the location of a member within an entity or association type structure.
///
internal sealed class StorageFunctionMemberPath {
internal StorageFunctionMemberPath(IEnumerable members, AssociationSet associationSetNavigation) {
this.Members = new ReadOnlyCollection(new List(
EntityUtil.CheckArgumentNull(members, "members")));
if (null != associationSetNavigation)
{
Debug.Assert(2 == this.Members.Count, "Association bindings must always consist of the end and the key");
// find the association set end
this.AssociationSetEnd = associationSetNavigation.AssociationSetEnds[this.Members[1].Name];
}
}
///
/// Gets the members in the path from the leaf (the member being bound)
/// to the Root of the structure.
///
internal readonly ReadOnlyCollection Members;
///
/// Gets the association set to which we are navigating via this member. If the value
/// is null, this is not a navigation member path.
///
internal readonly AssociationSetEnd AssociationSetEnd;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture, "{0}{1}",
null == AssociationSetEnd ? String.Empty : "[" + AssociationSetEnd.ParentAssociationSet.ToString() + "]",
StringUtil.BuildDelimitedList(Members, null, "."));
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//----------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// @owner [....]
// @backupOwner [....]
//---------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text;
using System.Data.Metadata.Edm;
using System.Diagnostics;
using System.Globalization;
using System.Data.Common.Utils;
using System.Linq;
namespace System.Data.Mapping {
///
/// Describes function mappings for an association set.
///
internal sealed class StorageAssociationSetFunctionMapping {
internal StorageAssociationSetFunctionMapping(
AssociationSet associationSet,
StorageFunctionMapping deleteFunctionMapping,
StorageFunctionMapping insertFunctionMapping) {
this.AssociationSet = EntityUtil.CheckArgumentNull(associationSet, "associationSet");
this.DeleteFunctionMapping = deleteFunctionMapping;
this.InsertFunctionMapping = insertFunctionMapping;
}
///
/// Association set these functions handles.
///
internal readonly AssociationSet AssociationSet;
///
/// Delete function for this association set.
///
internal readonly StorageFunctionMapping DeleteFunctionMapping;
///
/// Insert function for this association set.
///
internal readonly StorageFunctionMapping InsertFunctionMapping;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"AS{{{0}}}:{3}DFunc={{{1}}},{3}IFunc={{{2}}}", AssociationSet, DeleteFunctionMapping,
InsertFunctionMapping, Environment.NewLine + " ");
}
internal void Print(int index)
{
StorageEntityContainerMapping.GetPrettyPrintString(ref index);
StringBuilder sb = new StringBuilder();
sb.Append("Association Set Function Mapping");
sb.Append(" ");
sb.Append(this.ToString());
Console.WriteLine(sb.ToString());
}
}
///
/// Describes function mappings for an entity type within an entity set.
///
internal sealed class StorageEntityTypeFunctionMapping {
internal StorageEntityTypeFunctionMapping(
EntityType entityType,
StorageFunctionMapping deleteFunctionMapping,
StorageFunctionMapping insertFunctionMapping,
StorageFunctionMapping updateFunctionMapping) {
this.EntityType = EntityUtil.CheckArgumentNull(entityType, "entityType");
this.DeleteFunctionMapping = deleteFunctionMapping;
this.InsertFunctionMapping = insertFunctionMapping;
this.UpdateFunctionMapping = updateFunctionMapping;
}
///
/// Gets (specific) entity type these functions handle.
///
internal readonly EntityType EntityType;
///
/// Gets delete function for the current entity type.
///
internal readonly StorageFunctionMapping DeleteFunctionMapping;
///
/// Gets insert function for the current entity type.
///
internal readonly StorageFunctionMapping InsertFunctionMapping;
///
/// Gets update function for the current entity type.
///
internal readonly StorageFunctionMapping UpdateFunctionMapping;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"ET{{{0}}}:{4}DFunc={{{1}}},{4}IFunc={{{2}}},{4}UFunc={{{3}}}", EntityType, DeleteFunctionMapping,
InsertFunctionMapping, UpdateFunctionMapping, Environment.NewLine + " ");
}
internal void Print(int index)
{
StorageEntityContainerMapping.GetPrettyPrintString(ref index);
StringBuilder sb = new StringBuilder();
sb.Append("Entity Type Function Mapping");
sb.Append(" ");
sb.Append(this.ToString());
Console.WriteLine(sb.ToString());
}
}
///
/// Describes function binding for change processing of entities or associations.
///
internal sealed class StorageFunctionMapping {
internal StorageFunctionMapping(EntitySetBase entitySet, EntityTypeBase entityType, EdmFunction function, IEnumerable parameterBindings,
FunctionParameter rowsAffectedParameter, IEnumerable resultBindings) {
EntityUtil.CheckArgumentNull(entitySet, "entitySet");
this.Function = EntityUtil.CheckArgumentNull(function, "function");
this.RowsAffectedParameter = rowsAffectedParameter;
this.ParameterBindings = EntityUtil.CheckArgumentNull(parameterBindings, "parameterBindings")
.ToList().AsReadOnly();
if (null != resultBindings) {
List bindings = resultBindings.ToList();
if (0 < bindings.Count) {
ResultBindings = bindings.AsReadOnly();
}
}
this.CollocatedAssociationSetEnds = GetReferencedAssociationSetEnds(entitySet as EntitySet, entityType as EntityType, parameterBindings)
.ToList()
.AsReadOnly();
}
///
/// Gets output parameter producing number of rows affected. May be null.
///
internal readonly FunctionParameter RowsAffectedParameter;
///
/// Gets Metadata of function to which we should bind.
///
internal readonly EdmFunction Function;
///
/// Gets bindings for function parameters.
///
internal readonly ReadOnlyCollection ParameterBindings;
///
/// Gets all association set ends collocated in this mapping.
///
internal readonly ReadOnlyCollection CollocatedAssociationSetEnds;
///
/// Gets bindings for the results of function evaluation.
///
internal readonly ReadOnlyCollection ResultBindings;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"Func{{{0}}}: Prm={{{1}}}, Result={{{2}}}", Function,
StringUtil.ToCommaSeparatedStringSorted(ParameterBindings),
StringUtil.ToCommaSeparatedStringSorted(ResultBindings));
}
// requires: entitySet must not be null
// Yields all referenced association set ends in this mapping.
private static IEnumerable GetReferencedAssociationSetEnds(EntitySet entitySet, EntityType entityType, IEnumerable parameterBindings)
{
HashSet ends = new HashSet();
if (null != entitySet && null != entityType)
{
foreach (StorageFunctionParameterBinding parameterBinding in parameterBindings)
{
AssociationSetEnd end = parameterBinding.MemberPath.AssociationSetEnd;
if (null != end)
{
ends.Add(end);
}
}
// If there is a referential constraint, it counts as an implicit mapping of
// the association set
foreach (AssociationSet assocationSet in MetadataHelper.GetAssociationsForEntitySet(entitySet))
{
ReadOnlyMetadataCollection constraints = assocationSet.ElementType.ReferentialConstraints;
if (null != constraints)
{
foreach (ReferentialConstraint constraint in constraints)
{
if ( (assocationSet.AssociationSetEnds[constraint.ToRole.Name].EntitySet == entitySet) &&
(constraint.ToRole.GetEntityType().IsAssignableFrom(entityType)))
{
ends.Add(assocationSet.AssociationSetEnds[constraint.FromRole.Name]);
}
}
}
}
}
return ends;
}
}
///
/// Defines a binding from a named result set column to a member taking the value.
///
internal sealed class StorageFunctionResultBinding {
internal StorageFunctionResultBinding(string columnName, EdmProperty property) {
this.ColumnName = EntityUtil.CheckArgumentNull(columnName, "columnName");
this.Property = EntityUtil.CheckArgumentNull(property, "property");
}
///
/// Gets the name of the column to bind from the function result set. We use a string
/// value rather than EdmMember, since there is no metadata for function result sets.
///
internal readonly string ColumnName;
///
/// Gets the property to be set on the entity.
///
internal readonly EdmProperty Property;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"{0}->{1}", ColumnName, Property);
}
}
///
/// Binds a function parameter to a member of the entity or association being modified.
///
internal sealed class StorageFunctionParameterBinding
{
internal StorageFunctionParameterBinding(FunctionParameter parameter, StorageFunctionMemberPath memberPath, bool isCurrent) {
this.Parameter = EntityUtil.CheckArgumentNull(parameter, "parameter");
this.MemberPath = EntityUtil.CheckArgumentNull(memberPath, "memberPath");
this.IsCurrent = isCurrent;
}
///
/// Gets the parameter taking the value.
///
internal readonly FunctionParameter Parameter;
///
/// Gets the path to the entity or association member defining the value.
///
internal readonly StorageFunctionMemberPath MemberPath;
///
/// Gets a value indicating whether the current or original
/// member value is being bound.
///
internal readonly bool IsCurrent;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture,
"@{0}->{1}{2}", Parameter, IsCurrent ? "+" : "-", MemberPath);
}
}
///
/// Describes the location of a member within an entity or association type structure.
///
internal sealed class StorageFunctionMemberPath {
internal StorageFunctionMemberPath(IEnumerable members, AssociationSet associationSetNavigation) {
this.Members = new ReadOnlyCollection(new List(
EntityUtil.CheckArgumentNull(members, "members")));
if (null != associationSetNavigation)
{
Debug.Assert(2 == this.Members.Count, "Association bindings must always consist of the end and the key");
// find the association set end
this.AssociationSetEnd = associationSetNavigation.AssociationSetEnds[this.Members[1].Name];
}
}
///
/// Gets the members in the path from the leaf (the member being bound)
/// to the Root of the structure.
///
internal readonly ReadOnlyCollection Members;
///
/// Gets the association set to which we are navigating via this member. If the value
/// is null, this is not a navigation member path.
///
internal readonly AssociationSetEnd AssociationSetEnd;
public override string ToString() {
return String.Format(CultureInfo.InvariantCulture, "{0}{1}",
null == AssociationSetEnd ? String.Empty : "[" + AssociationSetEnd.ParentAssociationSet.ToString() + "]",
StringUtil.BuildDelimitedList(Members, null, "."));
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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