protected override void InvokeInternal(CommandProcessorContext cpc)
{
var cp = new CommandProcessor(cpc);
CreateFunctionComplexPropertyCommand preReqCmd = null;
for (var i = 0; i < _propertyChain.Count; i++)
{
var property = _propertyChain[i];
Debug.Assert(property.EntityModel.IsCSDL, "Each Property in the chain must be in the CSDL");
var complexConceptualProperty = property as ComplexConceptualProperty;
if (complexConceptualProperty != null)
{
Debug.Assert(i < _propertyChain.Count - 1, "Last property shouldn't be ComplexConceptualProperty");
CreateFunctionComplexPropertyCommand cmd = null;
if (preReqCmd == null)
{
// first property has a mapping whose parent is the ModificationFunction itself
cmd = new CreateFunctionComplexPropertyCommand(_modificationFunction, complexConceptualProperty);
}
else
{
// later properties have a mapping whose parent is the ComplexProperty produced from the previous command
cmd = new CreateFunctionComplexPropertyCommand(preReqCmd, complexConceptualProperty);
}
// set up the prereq Command to use for next time around this loop and for the
// CreateFunctionScalarPropertyCommand below
preReqCmd = cmd;
// enqueue the command
cp.EnqueueCommand(cmd);
}
else
{
Debug.Assert(i == _propertyChain.Count - 1, "This should be the last property");
CreateFunctionScalarPropertyCommand cmd = null;
if (preReqCmd == null)
{
// create the FunctionScalarProperty command without any other properties in the property chain
cmd = new CreateFunctionScalarPropertyCommand(
_modificationFunction, property, _navPropPointingToProperty, _parameter, _version);
}
else
{
// create the FunctionScalarProperty command using the command for the previous property in the property chain
cmd = new CreateFunctionScalarPropertyCommand(preReqCmd, property, _navPropPointingToProperty, _parameter, _version);
}
cp.EnqueueCommand(cmd);
cp.Invoke();
_createdProperty = cmd.FunctionScalarProperty;
if (_createdProperty != null)
{
XmlModelHelper.NormalizeAndResolve(_createdProperty);
}
return;
}
}
}
/// <summary>
/// This method lets you change just the version of a FunctionScalarProperty.
/// </summary>
/// <param name="fspToChange">FunctionScalarProperty to be changed</param>
/// <param name="version">New version value</param>
internal ChangeFunctionScalarPropertyCommand(FunctionScalarProperty fspToChange, string version)
{
Debug.Assert(version != null, "Version can't be null");
Debug.Assert(
ModelConstants.FunctionScalarPropertyVersionOriginal.Equals(version, StringComparison.Ordinal) ||
ModelConstants.FunctionScalarPropertyVersionCurrent.Equals(version, StringComparison.Ordinal),
"Version must be " + ModelConstants.FunctionScalarPropertyVersionOriginal + " or "
+ ModelConstants.FunctionScalarPropertyVersionCurrent + ". Actual value: " + version);
CommandValidation.ValidateFunctionScalarProperty(fspToChange);
_existingFunctionScalarProperty = fspToChange;
_version = version;
}
/// <summary>
/// This method lets you change just the version of a FunctionScalarProperty.
/// </summary>
/// <param name="fspToChange">FunctionScalarProperty to be changed</param>
/// <param name="version">New version value</param>
internal ChangeFunctionScalarPropertyCommand(FunctionScalarProperty fspToChange, string version)
{
Debug.Assert(version != null, "Version can't be null");
Debug.Assert(
ModelConstants.FunctionScalarPropertyVersionOriginal.Equals(version, StringComparison.Ordinal) ||
ModelConstants.FunctionScalarPropertyVersionCurrent.Equals(version, StringComparison.Ordinal),
"Version must be " + ModelConstants.FunctionScalarPropertyVersionOriginal + " or "
+ ModelConstants.FunctionScalarPropertyVersionCurrent + ". Actual value: " + version);
CommandValidation.ValidateFunctionScalarProperty(fspToChange);
_existingFunctionScalarProperty = fspToChange;
_version = version;
}
internal static FunctionScalarProperty CreateFunctionScalarPropertyCommon(
EFElement parent, Property property, Parameter parm, string version)
{
var fsp = new FunctionScalarProperty(parent, null);
fsp.Name.SetRefName(property);
fsp.ParameterName.SetRefName(parm);
if (string.IsNullOrEmpty(version) == false)
{
fsp.Version.Value = version;
}
var mf = parent as ModificationFunction;
var fae = parent as FunctionAssociationEnd;
var fcp = parent as FunctionComplexProperty;
if (mf != null)
{
mf.AddScalarProperty(fsp);
}
else if (fae != null)
{
fae.AddScalarProperty(fsp);
}
else if (fcp != null)
{
fcp.AddScalarProperty(fsp);
}
else
{
Debug.Fail(
"Unknown parent type (" + parent.GetType().FullName
+ ") sent to CreateFunctionScalarPropertyCommand.CreateFunctionScalarPropertyCommon()");
}
XmlModelHelper.NormalizeAndResolve(fsp);
return(fsp);
}
/// <summary>
/// Change the property pointed to by the FunctionScalarProperty. This may involve
/// change of property chain, change to/from a NavProp property or change of parameter.
/// </summary>
/// <param name="fspToChange">FunctionScalarProperty to be changed</param>
/// <param name="newPropertiesChain">property chain for new Property</param>
/// <param name="newPointingNavProp">NavProp for new Property (null indicates new Property not reached via NavProp)</param>
/// <param name="newParameter">Parameter to which new Property should be mapped (null indicates use existing Parameter)</param>
/// <param name="newVersion">Version attribute for new Property (null indicates use existing value). Only appropriate for Update Functions</param>
internal ChangeFunctionScalarPropertyCommand(
FunctionScalarProperty fspToChange, List <Property> newPropertiesChain,
NavigationProperty newPointingNavProp, Parameter newParameter, string newVersion)
{
Debug.Assert(
!(newPropertiesChain == null && newPointingNavProp == null && newParameter == null),
"Not all of newPropertiesChain, newPointingNavProp, newParameter can be null");
if (newPropertiesChain == null &&
newPointingNavProp == null &&
newParameter == null)
{
return;
}
Debug.Assert(
string.IsNullOrEmpty(newVersion) ||
ModelConstants.FunctionScalarPropertyVersionOriginal.Equals(newVersion, StringComparison.Ordinal) ||
ModelConstants.FunctionScalarPropertyVersionCurrent.Equals(newVersion, StringComparison.Ordinal),
"newVersion must be empty or " + ModelConstants.FunctionScalarPropertyVersionOriginal + " or "
+ ModelConstants.FunctionScalarPropertyVersionCurrent + ". Actual value: " + newVersion);
CommandValidation.ValidateFunctionScalarProperty(fspToChange);
if (newPointingNavProp != null)
{
CommandValidation.ValidateNavigationProperty(newPointingNavProp);
}
if (newParameter != null)
{
CommandValidation.ValidateParameter(newParameter);
}
_existingFunctionScalarProperty = fspToChange;
_propChain = newPropertiesChain;
_pointingNavProp = newPointingNavProp;
_param = newParameter;
_version = newVersion;
}
/// <summary>
/// Change the property pointed to by the FunctionScalarProperty. This may involve
/// change of property chain, change to/from a NavProp property or change of parameter.
/// </summary>
/// <param name="fspToChange">FunctionScalarProperty to be changed</param>
/// <param name="newPropertiesChain">property chain for new Property</param>
/// <param name="newPointingNavProp">NavProp for new Property (null indicates new Property not reached via NavProp)</param>
/// <param name="newParameter">Parameter to which new Property should be mapped (null indicates use existing Parameter)</param>
/// <param name="newVersion">Version attribute for new Property (null indicates use existing value). Only appropriate for Update Functions</param>
internal ChangeFunctionScalarPropertyCommand(
FunctionScalarProperty fspToChange, List<Property> newPropertiesChain,
NavigationProperty newPointingNavProp, Parameter newParameter, string newVersion)
{
Debug.Assert(
!(newPropertiesChain == null && newPointingNavProp == null && newParameter == null),
"Not all of newPropertiesChain, newPointingNavProp, newParameter can be null");
if (newPropertiesChain == null
&& newPointingNavProp == null
&& newParameter == null)
{
return;
}
Debug.Assert(
string.IsNullOrEmpty(newVersion) ||
ModelConstants.FunctionScalarPropertyVersionOriginal.Equals(newVersion, StringComparison.Ordinal) ||
ModelConstants.FunctionScalarPropertyVersionCurrent.Equals(newVersion, StringComparison.Ordinal),
"newVersion must be empty or " + ModelConstants.FunctionScalarPropertyVersionOriginal + " or "
+ ModelConstants.FunctionScalarPropertyVersionCurrent + ". Actual value: " + newVersion);
CommandValidation.ValidateFunctionScalarProperty(fspToChange);
if (newPointingNavProp != null)
{
CommandValidation.ValidateNavigationProperty(newPointingNavProp);
}
if (newParameter != null)
{
CommandValidation.ValidateParameter(newParameter);
}
_existingFunctionScalarProperty = fspToChange;
_propChain = newPropertiesChain;
_pointingNavProp = newPointingNavProp;
_param = newParameter;
_version = newVersion;
}
private void PreserveFunctionScalarPropertyMapping(
CommandProcessorContext cpc, FunctionScalarProperty fsp, Property createdComplexTypeProperty)
{
// this represents a path to a scalar Property in the original EntityType properties tree
var propertiesChain = fsp.GetMappedPropertiesList();
// we need to create a corresponding path in changed EntityType
// in order to do that we need to replace first (root) item with a created property from ComplexType...
propertiesChain.RemoveAt(0);
propertiesChain.Insert(0, createdComplexTypeProperty);
// and add the created EntityType complex property as a root of that path
propertiesChain.Insert(0, _createdComplexProperty);
var mf = fsp.GetParentOfType(typeof(ModificationFunction)) as ModificationFunction;
Debug.Assert(
null != mf,
"PreserveFunctionScalarPropertyMapping(): Could not find ancestor of type + " + typeof(ModificationFunction).FullName);
if (null != mf)
{
var cmd = new CreateFunctionScalarPropertyTreeCommand(
mf, propertiesChain, null, fsp.ParameterName.Target, fsp.Version.Value);
CommandProcessor.InvokeSingleCommand(cpc, cmd);
}
}
protected override void InvokeInternal(CommandProcessorContext cpc)
{
Debug.Assert(cpc != null, "InvokeInternal is called when ExitingFunctionScalarProperty is null.");
// safety check, this should never be hit
if (_existingFunctionScalarProperty == null)
{
throw new InvalidOperationException("InvokeInternal is called when ExitingFunctionScalarProperty is null.");
}
if (_propChain == null
&& _pointingNavProp == null
&& _param == null
&& _version != null)
{
// setting new version only
if (string.Compare(_existingFunctionScalarProperty.Version.Value, _version, StringComparison.CurrentCulture) != 0)
{
var mfAncestor = _existingFunctionScalarProperty.GetParentOfType(typeof(ModificationFunction)) as ModificationFunction;
Debug.Assert(
mfAncestor != null,
"Bad attempt to set version on FunctionScalarProperty which does not have a ModificationFunction ancestor");
if (mfAncestor != null)
{
Debug.Assert(
mfAncestor.FunctionType == ModificationFunctionType.Update,
"Bad attempt to set version on FunctionScalarProperty which has a ModificationFunction ancestor whose FunctionType is "
+
mfAncestor.FunctionType.ToString() + ". Should be " + ModificationFunctionType.Update.ToString());
if (mfAncestor.FunctionType == ModificationFunctionType.Update)
{
_existingFunctionScalarProperty.Version.Value = _version;
}
}
}
_updatedFunctionScalarProperty = _existingFunctionScalarProperty;
return;
}
// if not just setting version then need to delete and re-create FunctionScalarProperty
// to allow for changes in properties chain
// where nulls have been passed in, use existing values (except for _pointingNavProp where null
// indicates "use no NavProp for the new property")
var mf = _existingFunctionScalarProperty.GetParentOfType(typeof(ModificationFunction)) as ModificationFunction;
Debug.Assert(mf != null, "Bad attempt to change FunctionScalarProperty which does not have a ModificationFunction ancestor");
if (mf == null)
{
return;
}
var propChain = (_propChain != null ? _propChain : _existingFunctionScalarProperty.GetMappedPropertiesList());
var parameter = (_param != null ? _param : _existingFunctionScalarProperty.ParameterName.Target);
var version = (_version != null ? _version : _existingFunctionScalarProperty.Version.Value);
// now construct delete command for existing FunctionScalarProperty followed by create with new properties
var cmd1 = _existingFunctionScalarProperty.GetDeleteCommand();
var cmd2 =
new CreateFunctionScalarPropertyTreeCommand(mf, propChain, _pointingNavProp, parameter, version);
cmd2.PostInvokeEvent += (o, eventsArgs) =>
{
_updatedFunctionScalarProperty = cmd2.FunctionScalarProperty;
Debug.Assert(
_updatedFunctionScalarProperty != null,
"CreateFunctionScalarPropertyTreeCommand should not result in null FunctionScalarProperty");
};
var cp = new CommandProcessor(cpc, cmd1, cmd2);
try
{
cp.Invoke();
}
finally
{
_updatedFunctionScalarProperty = null;
}
}
internal static FunctionScalarProperty CreateFunctionScalarPropertyCommon(
EFElement parent, Property property, Parameter parm, string version)
{
var fsp = new FunctionScalarProperty(parent, null);
fsp.Name.SetRefName(property);
fsp.ParameterName.SetRefName(parm);
if (string.IsNullOrEmpty(version) == false)
{
fsp.Version.Value = version;
}
var mf = parent as ModificationFunction;
var fae = parent as FunctionAssociationEnd;
var fcp = parent as FunctionComplexProperty;
if (mf != null)
{
mf.AddScalarProperty(fsp);
}
else if (fae != null)
{
fae.AddScalarProperty(fsp);
}
else if (fcp != null)
{
fcp.AddScalarProperty(fsp);
}
else
{
Debug.Fail(
"Unknown parent type (" + parent.GetType().FullName
+ ") sent to CreateFunctionScalarPropertyCommand.CreateFunctionScalarPropertyCommon()");
}
XmlModelHelper.NormalizeAndResolve(fsp);
return fsp;
}
/// <summary>
/// Deletes the passed in FunctionScalarProperty
/// </summary>
/// <param name="sp"></param>
internal DeleteFunctionScalarPropertyCommand(FunctionScalarProperty sp)
: base(sp)
{
CommandValidation.ValidateFunctionScalarProperty(sp);
}
protected override void InvokeInternal(CommandProcessorContext cpc)
{
// safety check, this should never be hit
Debug.Assert(_property != null && _parm != null, "InvokeInternal is called when _property or _parm is null");
if (_property == null
|| _parm == null)
{
throw new InvalidOperationException("InvokeInternal is called when _property or _parm is null");
}
// check ModificationFunction or ComplexProperty parent exists
Debug.Assert(
_parentModFunc != null || _parentComplexProperty != null,
"Must have either a ModificationFunction or a FunctionComplexProperty parent to house this ScalarProperty");
if (_parentModFunc == null
&& _parentComplexProperty == null)
{
throw new CannotLocateParentItemException();
}
// check both ModificationFunction and ComplexProperty parents don't exist
Debug.Assert(
_parentModFunc == null || _parentComplexProperty == null,
"Must not have both a ModificationFunction and a FunctionComplexProperty parent to house this ScalarProperty");
if (_parentModFunc != null
&& _parentComplexProperty != null)
{
throw new CannotLocateParentItemException();
}
// now create it, either directly under this function mapping, or inside an AssociationEnd
// if the entity property is via a NavProp, or inside the parent ComplexProperty
if (_parentModFunc != null)
{
if (_pointingNavProperty == null)
{
// we can directly add a mapping
_sp = CreateFunctionScalarPropertyCommon(_parentModFunc, _property, _parm, _version);
}
else
{
// create an AssociationEnd and then add it
_sp = CreateFunctionScalarPropertyInAssociationEnd(_parentModFunc, _property, _pointingNavProperty, _parm, _version);
}
}
else if (_parentComplexProperty != null)
{
// should not have _pointingNavProperty if we have a FunctionComplexProperty parent
Debug.Assert(
_pointingNavProperty == null,
"We're creating a FunctionScalarProperty within a FunctionComplexProperty - but _pointingNavProperty is non-null!");
if (_pointingNavProperty == null)
{
_sp = CreateFunctionScalarPropertyCommon(_parentComplexProperty, _property, _parm, _version);
}
}
if (_sp == null)
{
throw new ItemCreationFailureException();
}
Debug.Assert(
_sp.Name.Target != null && _sp.Name.Target.LocalName.Value == _sp.Name.RefName,
(_sp.Name.Target == null
? "Broken entity property resolution - Target is null"
: "Broken entity property resolution - Target.LocalName.Value (" + _sp.Name.Target.LocalName.Value + ") != RefName ("
+ _sp.Name.RefName + ")"));
Debug.Assert(
_sp.ParameterName.Target != null && _sp.ParameterName.Target.LocalName.Value == _sp.ParameterName.RefName,
(_sp.ParameterName.Target == null
? "Broken parameter resolution - Target is null"
: "Broken parameter resolution - Target.LocalName.Value (" + _sp.ParameterName.Target.LocalName.Value + ") != RefName ("
+ _sp.ParameterName.RefName + ")"));
}
internal static void ValidateFunctionScalarProperty(FunctionScalarProperty sp)
{
ValidateEFElement(sp);
}
public MappingFunctionScalarProperty(EditingContext context, FunctionScalarProperty scalarProperty, MappingEFElement parent)
: base(context, scalarProperty, parent)
{
}
internal static void ValidateFunctionScalarProperty(FunctionScalarProperty sp)
{
ValidateEFElement(sp);
}
protected override void InvokeInternal(CommandProcessorContext cpc)
{
// safety check, this should never be hit
Debug.Assert(_property != null && _parm != null, "InvokeInternal is called when _property or _parm is null");
if (_property == null ||
_parm == null)
{
throw new InvalidOperationException("InvokeInternal is called when _property or _parm is null");
}
// check ModificationFunction or ComplexProperty parent exists
Debug.Assert(
_parentModFunc != null || _parentComplexProperty != null,
"Must have either a ModificationFunction or a FunctionComplexProperty parent to house this ScalarProperty");
if (_parentModFunc == null &&
_parentComplexProperty == null)
{
throw new CannotLocateParentItemException();
}
// check both ModificationFunction and ComplexProperty parents don't exist
Debug.Assert(
_parentModFunc == null || _parentComplexProperty == null,
"Must not have both a ModificationFunction and a FunctionComplexProperty parent to house this ScalarProperty");
if (_parentModFunc != null &&
_parentComplexProperty != null)
{
throw new CannotLocateParentItemException();
}
// now create it, either directly under this function mapping, or inside an AssociationEnd
// if the entity property is via a NavProp, or inside the parent ComplexProperty
if (_parentModFunc != null)
{
if (_pointingNavProperty == null)
{
// we can directly add a mapping
_sp = CreateFunctionScalarPropertyCommon(_parentModFunc, _property, _parm, _version);
}
else
{
// create an AssociationEnd and then add it
_sp = CreateFunctionScalarPropertyInAssociationEnd(_parentModFunc, _property, _pointingNavProperty, _parm, _version);
}
}
else if (_parentComplexProperty != null)
{
// should not have _pointingNavProperty if we have a FunctionComplexProperty parent
Debug.Assert(
_pointingNavProperty == null,
"We're creating a FunctionScalarProperty within a FunctionComplexProperty - but _pointingNavProperty is non-null!");
if (_pointingNavProperty == null)
{
_sp = CreateFunctionScalarPropertyCommon(_parentComplexProperty, _property, _parm, _version);
}
}
if (_sp == null)
{
throw new ItemCreationFailureException();
}
Debug.Assert(
_sp.Name.Target != null && _sp.Name.Target.LocalName.Value == _sp.Name.RefName,
(_sp.Name.Target == null
? "Broken entity property resolution - Target is null"
: "Broken entity property resolution - Target.LocalName.Value (" + _sp.Name.Target.LocalName.Value + ") != RefName ("
+ _sp.Name.RefName + ")"));
Debug.Assert(
_sp.ParameterName.Target != null && _sp.ParameterName.Target.LocalName.Value == _sp.ParameterName.RefName,
(_sp.ParameterName.Target == null
? "Broken parameter resolution - Target is null"
: "Broken parameter resolution - Target.LocalName.Value (" + _sp.ParameterName.Target.LocalName.Value + ") != RefName ("
+ _sp.ParameterName.RefName + ")"));
}
internal override bool ParseSingleElement(ICollection<XName> unprocessedElements, XElement elem)
{
if (elem.Name.LocalName == FunctionScalarProperty.ElementName)
{
var prop = new FunctionScalarProperty(this, elem);
_properties.Add(prop);
prop.Parse(unprocessedElements);
}
else
{
return base.ParseSingleElement(unprocessedElements, elem);
}
return true;
}
internal void AddScalarProperty(FunctionScalarProperty prop)
{
_properties.Add(prop);
}
protected override void InvokeInternal(CommandProcessorContext cpc)
{
var cp = new CommandProcessor(cpc);
CreateFunctionComplexPropertyCommand preReqCmd = null;
for (var i = 0; i < _propertyChain.Count; i++)
{
var property = _propertyChain[i];
Debug.Assert(property.EntityModel.IsCSDL, "Each Property in the chain must be in the CSDL");
var complexConceptualProperty = property as ComplexConceptualProperty;
if (complexConceptualProperty != null)
{
Debug.Assert(i < _propertyChain.Count - 1, "Last property shouldn't be ComplexConceptualProperty");
CreateFunctionComplexPropertyCommand cmd = null;
if (preReqCmd == null)
{
// first property has a mapping whose parent is the ModificationFunction itself
cmd = new CreateFunctionComplexPropertyCommand(_modificationFunction, complexConceptualProperty);
}
else
{
// later properties have a mapping whose parent is the ComplexProperty produced from the previous command
cmd = new CreateFunctionComplexPropertyCommand(preReqCmd, complexConceptualProperty);
}
// set up the prereq Command to use for next time around this loop and for the
// CreateFunctionScalarPropertyCommand below
preReqCmd = cmd;
// enqueue the command
cp.EnqueueCommand(cmd);
}
else
{
Debug.Assert(i == _propertyChain.Count - 1, "This should be the last property");
CreateFunctionScalarPropertyCommand cmd = null;
if (preReqCmd == null)
{
// create the FunctionScalarProperty command without any other properties in the property chain
cmd = new CreateFunctionScalarPropertyCommand(
_modificationFunction, property, _navPropPointingToProperty, _parameter, _version);
}
else
{
// create the FunctionScalarProperty command using the command for the previous property in the property chain
cmd = new CreateFunctionScalarPropertyCommand(preReqCmd, property, _navPropPointingToProperty, _parameter, _version);
}
cp.EnqueueCommand(cmd);
cp.Invoke();
_createdProperty = cmd.FunctionScalarProperty;
if (_createdProperty != null)
{
XmlModelHelper.NormalizeAndResolve(_createdProperty);
}
return;
}
}
}
/// <summary>
/// Deletes the passed in FunctionScalarProperty
/// </summary>
/// <param name="sp"></param>
internal DeleteFunctionScalarPropertyCommand(FunctionScalarProperty sp)
: base(sp)
{
CommandValidation.ValidateFunctionScalarProperty(sp);
}
public MappingFunctionScalarProperty(EditingContext context, FunctionScalarProperty scalarProperty, MappingEFElement parent)
: base(context, scalarProperty, parent)
{
}
internal void LoadScalarProperties()
{
if (null == _scalarProperties)
{
_scalarProperties = new List <MappingFunctionScalarProperty>();
// load children from model
// note: have to go to parent to get this as this is a dummy node
if (Function != null &&
MappingFunctionEntityType != null &&
MappingFunctionEntityType.EntityType != null)
{
var entityType = MappingFunctionEntityType.EntityType;
// loop through all of the 'parameters' in the function
foreach (var parm in Function.Parameters())
{
FunctionScalarProperty existingScalarProperty = null;
// for each column, see if we are already have a scalar property
var antiDeps = parm.GetAntiDependenciesOfType <FunctionScalarProperty>();
foreach (var scalarProperty in antiDeps)
{
// this FunctionScalarProperty could be right under the function, nested inside an AssociationEnd,
// or N levels deep inside a complex type hierarchy
var spmf = scalarProperty.GetParentOfType(typeof(ModificationFunction)) as ModificationFunction;
// if we find one, validate it
if (scalarProperty != null &&
scalarProperty.Name.Status == BindingStatus.Known &&
spmf != null &&
ModificationFunction == spmf)
{
// make sure we are looking at something mapped by the entity type we are mapping
if (entityType != spmf.ModificationFunctionMapping.EntityTypeMapping.FirstBoundConceptualEntityType)
{
continue;
}
// we are already mapping this
existingScalarProperty = scalarProperty;
break;
}
}
// if we didn't find one, then create a dummy row with just the column info
if (existingScalarProperty == null)
{
var msp = new MappingFunctionScalarProperty(_context, null, this);
msp.StoreParameter = parm;
_scalarProperties.Add(msp);
}
else
{
var msp =
(MappingFunctionScalarProperty)
ModelToMappingModelXRef.GetNewOrExisting(_context, existingScalarProperty, this);
_scalarProperties.Add(msp);
}
}
}
}
}
private void PreserveFunctionScalarPropertyMapping(
CommandProcessorContext cpc, FunctionScalarProperty fsp, Property createdComplexTypeProperty)
{
// this represents a path to a scalar Property in the original EntityType properties tree
var propertiesChain = fsp.GetMappedPropertiesList();
// we need to create a corresponding path in changed EntityType
// in order to do that we need to replace first (root) item with a created property from ComplexType...
propertiesChain.RemoveAt(0);
propertiesChain.Insert(0, createdComplexTypeProperty);
// and add the created EntityType complex property as a root of that path
propertiesChain.Insert(0, _createdComplexProperty);
var mf = fsp.GetParentOfType(typeof(ModificationFunction)) as ModificationFunction;
Debug.Assert(
null != mf,
"PreserveFunctionScalarPropertyMapping(): Could not find ancestor of type + " + typeof(ModificationFunction).FullName);
if (null != mf)
{
var cmd = new CreateFunctionScalarPropertyTreeCommand(
mf, propertiesChain, null, fsp.ParameterName.Target, fsp.Version.Value);
CommandProcessor.InvokeSingleCommand(cpc, cmd);
}
}
protected override void InvokeInternal(CommandProcessorContext cpc)
{
Debug.Assert(cpc != null, "InvokeInternal is called when ExitingFunctionScalarProperty is null.");
// safety check, this should never be hit
if (_existingFunctionScalarProperty == null)
{
throw new InvalidOperationException("InvokeInternal is called when ExitingFunctionScalarProperty is null.");
}
if (_propChain == null &&
_pointingNavProp == null &&
_param == null &&
_version != null)
{
// setting new version only
if (string.Compare(_existingFunctionScalarProperty.Version.Value, _version, StringComparison.CurrentCulture) != 0)
{
var mfAncestor = _existingFunctionScalarProperty.GetParentOfType(typeof(ModificationFunction)) as ModificationFunction;
Debug.Assert(
mfAncestor != null,
"Bad attempt to set version on FunctionScalarProperty which does not have a ModificationFunction ancestor");
if (mfAncestor != null)
{
Debug.Assert(
mfAncestor.FunctionType == ModificationFunctionType.Update,
"Bad attempt to set version on FunctionScalarProperty which has a ModificationFunction ancestor whose FunctionType is "
+
mfAncestor.FunctionType.ToString() + ". Should be " + ModificationFunctionType.Update.ToString());
if (mfAncestor.FunctionType == ModificationFunctionType.Update)
{
_existingFunctionScalarProperty.Version.Value = _version;
}
}
}
_updatedFunctionScalarProperty = _existingFunctionScalarProperty;
return;
}
// if not just setting version then need to delete and re-create FunctionScalarProperty
// to allow for changes in properties chain
// where nulls have been passed in, use existing values (except for _pointingNavProp where null
// indicates "use no NavProp for the new property")
var mf = _existingFunctionScalarProperty.GetParentOfType(typeof(ModificationFunction)) as ModificationFunction;
Debug.Assert(mf != null, "Bad attempt to change FunctionScalarProperty which does not have a ModificationFunction ancestor");
if (mf == null)
{
return;
}
var propChain = (_propChain != null ? _propChain : _existingFunctionScalarProperty.GetMappedPropertiesList());
var parameter = (_param != null ? _param : _existingFunctionScalarProperty.ParameterName.Target);
var version = (_version != null ? _version : _existingFunctionScalarProperty.Version.Value);
// now construct delete command for existing FunctionScalarProperty followed by create with new properties
var cmd1 = _existingFunctionScalarProperty.GetDeleteCommand();
var cmd2 =
new CreateFunctionScalarPropertyTreeCommand(mf, propChain, _pointingNavProp, parameter, version);
cmd2.PostInvokeEvent += (o, eventsArgs) =>
{
_updatedFunctionScalarProperty = cmd2.FunctionScalarProperty;
Debug.Assert(
_updatedFunctionScalarProperty != null,
"CreateFunctionScalarPropertyTreeCommand should not result in null FunctionScalarProperty");
};
var cp = new CommandProcessor(cpc, cmd1, cmd2);
try
{
cp.Invoke();
}
finally
{
_updatedFunctionScalarProperty = null;
}
}
internal override bool ParseSingleElement(ICollection<XName> unprocessedElements, XElement elem)
{
if (elem.Name.LocalName == FunctionScalarProperty.ElementName)
{
var prop = new FunctionScalarProperty(this, elem);
_scalarProperties.Add(prop);
prop.Parse(unprocessedElements);
}
else if (elem.Name.LocalName == FunctionComplexProperty.ElementName)
{
var prop = new FunctionComplexProperty(this, elem);
_complexProperties.Add(prop);
prop.Parse(unprocessedElements);
}
else if (elem.Name.LocalName == FunctionAssociationEnd.ElementName)
{
var end = new FunctionAssociationEnd(this, elem);
_ends.Add(end);
end.Parse(unprocessedElements);
}
else if (elem.Name.LocalName == ResultBinding.ElementName)
{
var resultBinding = new ResultBinding(this, elem);
_resultBindings.Add(resultBinding);
resultBinding.Parse(unprocessedElements);
}
else
{
return base.ParseSingleElement(unprocessedElements, elem);
}
return true;
}
