protected override void InvokeInternal(CommandProcessorContext cpc)
{
Debug.Assert(
_mode == Mode.EntityType || _mode == Mode.MappingFragment, "Unknown mode set in CreateFragmentScalarPropertyTreeCommand");
var cp = new CommandProcessor(cpc);
CreateFragmentComplexPropertyCommand prereqCmd = null;
for (var i = 0; i < _properties.Count; i++)
{
var property = _properties[i];
var complexConceptualProperty = property as ComplexConceptualProperty;
if (complexConceptualProperty != null)
{
Debug.Assert(i < _properties.Count - 1, "Last property shouldn't be ComplexConceptualProperty");
CreateFragmentComplexPropertyCommand cmd = null;
if (prereqCmd == null)
{
if (_mode == Mode.EntityType)
{
cmd = new CreateFragmentComplexPropertyCommand(_conceptualEntityType, complexConceptualProperty, _tableColumn);
}
else
{
cmd = new CreateFragmentComplexPropertyCommand(_mappingFragment, complexConceptualProperty);
}
}
else
{
cmd = new CreateFragmentComplexPropertyCommand(prereqCmd, complexConceptualProperty);
}
prereqCmd = cmd;
cp.EnqueueCommand(cmd);
}
else
{
Debug.Assert(i == _properties.Count - 1, "This should be the last property");
CreateFragmentScalarPropertyCommand cmd = null;
if (prereqCmd == null)
{
if (_mode == Mode.EntityType)
{
cmd = new CreateFragmentScalarPropertyCommand(_conceptualEntityType, property, _tableColumn);
}
else
{
cmd = new CreateFragmentScalarPropertyCommand(_mappingFragment, property, _tableColumn);
}
}
else
{
cmd = new CreateFragmentScalarPropertyCommand(prereqCmd, property, _tableColumn);
}
cp.EnqueueCommand(cmd);
cp.Invoke();
_createdProperty = cmd.ScalarProperty;
return;
}
}
}
private void ProcessMappingFragment(EntityInfo info, EntityType table, MappingFragment frag)
{
// move any scalar mappings to this fragment if they aren't there
foreach (var sp in info.NonKeyScalars)
{
Debug.Assert(sp.ColumnName.Target != null, "Found a ScalarProperty with an unknown column binding");
if (sp.ColumnName.Target.Parent == table
&& sp.MappingFragment != frag)
{
// delete the old, create the new
AddToDeleteList(sp);
var cmd = new CreateFragmentScalarPropertyTreeCommand(frag, sp.GetMappedPropertiesList(), sp.ColumnName.Target);
var cp = new CommandProcessor(_cpc, cmd);
cp.Invoke();
}
}
// move any conditions to this fragment if they aren't there
foreach (var cond in info.Conditions)
{
Debug.Assert(cond.ColumnName.Target != null, "Found a Condition with an unknown column binding");
if (cond.ColumnName.Target.Parent == table
&& cond.MappingFragment != frag)
{
// save off the condition information
bool? isNull = null;
if (cond.IsNull.Value == Condition.IsNullConstant)
{
isNull = true;
}
else if (cond.IsNull.Value == Condition.IsNotNullConstant)
{
isNull = false;
}
var conditionValue = cond.Value.Value;
var column = cond.ColumnName.Target;
// delete the old, create the new
AddToDeleteList(cond);
var cmd = new CreateFragmentConditionCommand(frag, column, isNull, conditionValue);
var cp = new CommandProcessor(_cpc, cmd);
cp.Invoke();
}
}
// build a list of all of the keys
var keysToMap = new List<Property>();
keysToMap.AddRange(info.KeyProperties);
// move any key scalar mappings to this fragment if they exist in a different one - provided they are for the same table
foreach (var sp in info.KeyScalars)
{
Debug.Assert(sp.ColumnName.Target != null, "Found a ScalarProperty with an unknown column binding");
if (sp.ColumnName.Target.Parent == table
&& sp.MappingFragment != frag)
{
var property = sp.Name.Target;
var column = sp.ColumnName.Target;
// delete the old, create the new
AddToDeleteList(sp);
var cmd = new CreateFragmentScalarPropertyCommand(frag, property, column);
var cp = new CommandProcessor(_cpc, cmd);
cp.Invoke();
}
// since we've mapped this one now, remove it from our list of things to do
keysToMap.Remove(sp.Name.Target);
}
// if its TPH, all keys need to be here
// (Note: if it's not TPH the user needs to specify any missing keys manually)
if (info.InheritanceStrategy == InheritanceMappingStrategy.TablePerHierarchy)
{
// loop through the base most type's keys and add those that we haven't mapped
foreach (var keyRemaining in keysToMap)
{
var sp = FindKeyMappingInAllParents(info, keyRemaining);
if (sp != null
&& sp.ColumnName.Target != null
&& sp.ColumnName.Target.Parent == table)
{
var cmd = new CreateFragmentScalarPropertyCommand(frag, sp.Name.Target, sp.ColumnName.Target);
var cp = new CommandProcessor(_cpc, cmd);
cp.Invoke();
}
}
}
// replicate all non-key base type scalars here if the parent uses a Default ETM
// (since there is no parent IsTypeOf ETM from which to "inherit" them)
if (info.Parent != null
&& info.Parent.UsesEntityTypeMappingKind(EntityTypeMappingKind.Default))
{
// first gather the list of scalars from all parents
var parentScalars = new List<ScalarProperty>();
GatherNonKeyScalarsFromAllParents(info.Parent, parentScalars);
// then build a list of those scalars used in our fragment
var existingMappedProperties = new HashSet<Property>();
foreach (var existingScalar in frag.ScalarProperties())
{
existingMappedProperties.Add(existingScalar.Name.Target);
}
// finally, add those in that aren't already in the fragment
foreach (var sp in parentScalars)
{
Debug.Assert(sp.ColumnName.Target != null, "Found a ScalarProperty with an unknown column binding");
// don't duplicate and only add those that use the same table as us
if (existingMappedProperties.Contains(sp.Name.Target) == false
&& sp.ColumnName.Target.EntityType == table)
{
var cmd = new CreateFragmentScalarPropertyTreeCommand(frag, sp.GetMappedPropertiesList(), sp.ColumnName.Target);
var cp = new CommandProcessor(_cpc, cmd);
cp.Invoke();
existingMappedProperties.Add(sp.Name.Target);
}
}
}
// make sure that we don't have any extra scalars
// so gather the list of all SPs we expect to be here
var expectedMappedProperties = new List<Property>();
expectedMappedProperties.AddRange(info.KeyProperties);
expectedMappedProperties.AddRange(info.NonKeyProperties);
if (info.Parent != null
&& info.Parent.UsesEntityTypeMappingKind(EntityTypeMappingKind.Default))
{
GatherNonKeyPropertiesFromAllParents(info.Parent, expectedMappedProperties);
}
// remove any that aren't in our expected list
foreach (var sp in frag.ScalarProperties())
{
if (expectedMappedProperties.Contains(sp.Name.Target) == false)
{
AddToDeleteList(sp);
}
}
}
/// <summary>
/// Creates a new MappingFragment in the existing EntityTypeMapping
/// based on another MappingFragment (fragToClone) in a different artifact.
/// All the other parameters are presumed to already exist in the same artifact
/// as the EntityTypeMapping.
/// </summary>
internal static MappingFragment CloneMappingFragment(
CommandProcessorContext cpc, MappingFragment fragToClone,
EntityTypeMapping existingEntityTypeMapping, StorageEntitySet existingEntitySet)
{
var createFragmentCommand = new CreateMappingFragmentCommand(existingEntityTypeMapping, existingEntitySet);
var cp = new CommandProcessor(cpc, createFragmentCommand);
cp.Invoke();
var frag = createFragmentCommand.MappingFragment;
Debug.Assert(frag != null, "Could not locate or create the required mapping fragment");
if (frag != null)
{
foreach (var sp in fragToClone.ScalarProperties())
{
Property entityProperty = null;
if (sp.Name != null &&
sp.Name.Target != null &&
sp.Name.Target.LocalName != null &&
sp.Name.Target.LocalName.Value != null)
{
entityProperty = ModelHelper.FindPropertyForEntityTypeMapping(
existingEntityTypeMapping, sp.Name.Target.LocalName.Value);
Debug.Assert(
entityProperty != null,
"Cannot find Property with name " + sp.Name.Target.LocalName.Value + " for EntityTypeMapping "
+ existingEntityTypeMapping.ToPrettyString());
}
Property tableColumn = null;
if (frag.StoreEntitySet != null &&
frag.StoreEntitySet.Target != null &&
frag.StoreEntitySet.Target.EntityType != null &&
frag.StoreEntitySet.Target.EntityType.Target != null &&
sp.ColumnName != null &&
sp.ColumnName.Target != null &&
sp.ColumnName.Target.LocalName != null &&
sp.ColumnName.Target.LocalName.Value != null)
{
tableColumn = ModelHelper.FindProperty(
frag.StoreEntitySet.Target.EntityType.Target, sp.ColumnName.Target.LocalName.Value);
Debug.Assert(
tableColumn != null,
"Cannot find Property with name " + sp.ColumnName.Target.LocalName.Value + " for EntityType "
+ frag.StoreEntitySet.Target.EntityType.Target.ToPrettyString());
}
if (entityProperty != null &&
tableColumn != null)
{
var createScalarCommand = new CreateFragmentScalarPropertyCommand(frag, entityProperty, tableColumn);
var cp2 = new CommandProcessor(cpc, createScalarCommand);
cp2.Invoke();
}
}
}
return(frag);
}
protected override void InvokeInternal(CommandProcessorContext cpc)
{
Debug.Assert(
_mode == Mode.EntityType || _mode == Mode.MappingFragment, "Unknown mode set in CreateFragmentScalarPropertyTreeCommand");
var cp = new CommandProcessor(cpc);
CreateFragmentComplexPropertyCommand prereqCmd = null;
for (var i = 0; i < _properties.Count; i++)
{
var property = _properties[i];
var complexConceptualProperty = property as ComplexConceptualProperty;
if (complexConceptualProperty != null)
{
Debug.Assert(i < _properties.Count - 1, "Last property shouldn't be ComplexConceptualProperty");
CreateFragmentComplexPropertyCommand cmd = null;
if (prereqCmd == null)
{
if (_mode == Mode.EntityType)
{
cmd = new CreateFragmentComplexPropertyCommand(_conceptualEntityType, complexConceptualProperty, _tableColumn);
}
else
{
cmd = new CreateFragmentComplexPropertyCommand(_mappingFragment, complexConceptualProperty);
}
}
else
{
cmd = new CreateFragmentComplexPropertyCommand(prereqCmd, complexConceptualProperty);
}
prereqCmd = cmd;
cp.EnqueueCommand(cmd);
}
else
{
Debug.Assert(i == _properties.Count - 1, "This should be the last property");
CreateFragmentScalarPropertyCommand cmd = null;
if (prereqCmd == null)
{
if (_mode == Mode.EntityType)
{
cmd = new CreateFragmentScalarPropertyCommand(_conceptualEntityType, property, _tableColumn);
}
else
{
cmd = new CreateFragmentScalarPropertyCommand(_mappingFragment, property, _tableColumn);
}
}
else
{
cmd = new CreateFragmentScalarPropertyCommand(prereqCmd, property, _tableColumn);
}
cp.EnqueueCommand(cmd);
cp.Invoke();
_createdProperty = cmd.ScalarProperty;
return;
}
}
}
/// <summary>
/// Creates a new MappingFragment in the existing EntityTypeMapping
/// based on another MappingFragment (fragToClone) in a different artifact.
/// All the other parameters are presumed to already exist in the same artifact
/// as the EntityTypeMapping.
/// </summary>
internal static MappingFragment CloneMappingFragment(
CommandProcessorContext cpc, MappingFragment fragToClone,
EntityTypeMapping existingEntityTypeMapping, StorageEntitySet existingEntitySet)
{
var createFragmentCommand = new CreateMappingFragmentCommand(existingEntityTypeMapping, existingEntitySet);
var cp = new CommandProcessor(cpc, createFragmentCommand);
cp.Invoke();
var frag = createFragmentCommand.MappingFragment;
Debug.Assert(frag != null, "Could not locate or create the required mapping fragment");
if (frag != null)
{
foreach (var sp in fragToClone.ScalarProperties())
{
Property entityProperty = null;
if (sp.Name != null
&& sp.Name.Target != null
&& sp.Name.Target.LocalName != null
&& sp.Name.Target.LocalName.Value != null)
{
entityProperty = ModelHelper.FindPropertyForEntityTypeMapping(
existingEntityTypeMapping, sp.Name.Target.LocalName.Value);
Debug.Assert(
entityProperty != null,
"Cannot find Property with name " + sp.Name.Target.LocalName.Value + " for EntityTypeMapping "
+ existingEntityTypeMapping.ToPrettyString());
}
Property tableColumn = null;
if (frag.StoreEntitySet != null
&& frag.StoreEntitySet.Target != null
&& frag.StoreEntitySet.Target.EntityType != null
&& frag.StoreEntitySet.Target.EntityType.Target != null
&& sp.ColumnName != null
&& sp.ColumnName.Target != null
&& sp.ColumnName.Target.LocalName != null
&& sp.ColumnName.Target.LocalName.Value != null)
{
tableColumn = ModelHelper.FindProperty(
frag.StoreEntitySet.Target.EntityType.Target, sp.ColumnName.Target.LocalName.Value);
Debug.Assert(
tableColumn != null,
"Cannot find Property with name " + sp.ColumnName.Target.LocalName.Value + " for EntityType "
+ frag.StoreEntitySet.Target.EntityType.Target.ToPrettyString());
}
if (entityProperty != null
&& tableColumn != null)
{
var createScalarCommand = new CreateFragmentScalarPropertyCommand(frag, entityProperty, tableColumn);
var cp2 = new CommandProcessor(cpc, createScalarCommand);
cp2.Invoke();
}
}
}
return frag;
}
/// <summary>
/// In the existing artifact create a new C-side Property
/// in the existing EntityType plus a mapping based on the
/// C-side and S-side Properties in the temp artifact
/// </summary>
private Property CreateNewConceptualPropertyAndMapping(
CommandProcessorContext cpc,
Property cSidePropInTempArtifact, Property sSidePropInTempArtifact,
EntityType existingEntityType)
{
Debug.Assert(cSidePropInTempArtifact != null, "Null C-side Property");
Debug.Assert(cSidePropInTempArtifact.EntityType.EntityModel.IsCSDL, "cSidePropInTempArtifact must be C-side");
Debug.Assert(sSidePropInTempArtifact != null, "Null S-side Property");
Debug.Assert(!sSidePropInTempArtifact.EntityType.EntityModel.IsCSDL, "sSidePropInTempArtifact must be S-side");
Debug.Assert(existingEntityType != null, "Null existing EntityType");
Debug.Assert(existingEntityType.EntityModel.IsCSDL, "Existing EntityType must be C-side");
var pcf = new PropertyClipboardFormat(cSidePropInTempArtifact);
Debug.Assert(
pcf != null, "Could not construct PropertyClipboardFormat for C-side Property " + cSidePropInTempArtifact.ToPrettyString());
if (null == pcf)
{
return null;
}
else
{
// store off matching S-side property in the existing
// artifact for mapping below
var sSidePropInExistingArtifact =
FindSSidePropInExistingArtifact(sSidePropInTempArtifact);
Debug.Assert(
null != sSidePropInExistingArtifact,
"Cannot find S-side Property matching the one in the temp artifact " + sSidePropInTempArtifact.ToPrettyString());
// create the C-side Property in the existing artifact
var cmd = new CopyPropertyCommand(pcf, existingEntityType);
CommandProcessor.InvokeSingleCommand(cpc, cmd);
var cSidePropInExistingArtifact = cmd.Property;
// now create the mapping for the C-side Property just created
if (null != cSidePropInExistingArtifact
&& null != sSidePropInExistingArtifact)
{
var cmd2 =
new CreateFragmentScalarPropertyCommand(
existingEntityType,
cSidePropInExistingArtifact, sSidePropInExistingArtifact);
CommandProcessor.InvokeSingleCommand(cpc, cmd2);
}
return cSidePropInExistingArtifact;
}
}