public MetadataFieldDescriptor Clone()
{
MetadataFieldDescriptor result = this.MemberwiseClone() as MetadataFieldDescriptor;
result.clonedFrom = this;
return(result);
}
public int NumberOfVisibleFields(bool considerAlwaysShow = true)
{
int size = 0;
MetaMetadataOneLevelNestingEnumerator fullEnumerator = FullNonRecursiveMetaMetadataIterator();
// iterate over all fields in this & then in each mixin of this
while (fullEnumerator.MoveNext())
{
MetaMetadataField metaMetadataField = fullEnumerator.Current;
MetaMetadataField metaMetadata = fullEnumerator.CurrentObject(); // stays the same for until we
// iterate over all mfd's for
// it
Metadata currentMetadata = fullEnumerator.CurrentMetadata;
// When the iterator enters the metadata in the mixins "this" in getValueString has to be
// the corresponding metadata in mixin.
bool hasVisibleNonNullField = false;
MetadataFieldDescriptor mfd = metaMetadataField.MetadataFieldDescriptor;
if (metaMetadata.IsChildFieldDisplayed(metaMetadataField.Name))
{
if (mfd.IsScalar && !mfd.IsCollection)
{
hasVisibleNonNullField = MetadataString.IsNotNullAndEmptyValue(mfd.GetValueString(currentMetadata));
}
else if (mfd.IsComposite)
{
Metadata nestedMetadata = (Metadata)mfd.GetNestedMetadata(currentMetadata);
hasVisibleNonNullField = (nestedMetadata != null) ? (nestedMetadata.NumberOfVisibleFields() > 0) : false;
}
else if (mfd.IsCollection)
{
ICollection collection = mfd.GetCollection(currentMetadata);
hasVisibleNonNullField = (collection != null) ? (collection.Count > 0) : false;
}
}
// "null" happens with mixins fieldAccessor b'coz getValueString() returns "null".
// TODO use MetaMetadataField.numNonDisplayedFields()
bool isVisibleField = !metaMetadataField.Hide &&
((considerAlwaysShow && metaMetadataField.AlwaysShow) || hasVisibleNonNullField);
if (isVisibleField)
{
size++;
}
}
return(size);
}
public void DeserializationPreHook(Object e, FieldDescriptor fd)
{
var deserializedMetadata = e as Metadata;
if (deserializedMetadata == null)
{
return;
}
if (_currentMMStack.Count == 0)
{
MetaMetadataCompositeField deserializationMM = deserializedMetadata.MetaMetadata;
// MetaMetadataCompositeField metaMetadata = semanticsSessionScope.getMetaMetadataRepository().getByClass(InformationComposition.class);
// if (metaMetadata != null && metaMetadata.bindMetaMetadataToMetadata(deserializationMM))
// {
// metaMetadata = (MetaMetadata) deserializationMM;
// }
// else
// {
// deserializedMetadata.setMetaMetadata(metaMetadata);
// }
_currentMMStack.Push(deserializationMM);
}
else if (fd is MetadataFieldDescriptor)
{
MetadataFieldDescriptor mfd = (MetadataFieldDescriptor)fd;
String mmName = mfd.MmName;
MetaMetadataNestedField currentMM = _currentMMStack.Peek();
MetaMetadataNestedField childMMNested = (MetaMetadataNestedField)currentMM.LookupChild(mmName);
MetaMetadataCompositeField childMMComposite = null;
if (childMMNested.IsPolymorphicInherently)
{
String tagName = deserializedMetadata.MetadataClassDescriptor.TagName;
childMMComposite = _semanticsSessionScope.MetaMetadataRepository.GetMMByName(tagName);
}
else
{
childMMComposite = childMMNested.GetMetaMetadataCompositeField();
}
deserializedMetadata.MetaMetadata = childMMComposite;
_currentMMStack.Push(childMMComposite);
}
if (e is Document)
{
((Document)e).SemanticsSessionScope = _semanticsSessionScope;
}
}
/**
* For the root, compare the meta-metadata from the binding with the one we started with. Down the
* hierarchy, try to perform similar bindings.
*/
public void DeserializationPreHook(MetadataNS.Metadata deserializedMetadata, MetadataFieldDescriptor mfd)
{
if (deserializingRoot)
{
deserializingRoot = false;
Document document = GetDocument();
MetaMetadataCompositeField preMM = document.MetaMetadata;
MetadataClassDescriptor mcd = (MetadataClassDescriptor) ClassDescriptor.GetClassDescriptor(deserializedMetadata);;
MetaMetadataCompositeField metaMetadata;
String tagName = mcd.TagName;
if (preMM.GetTagForTranslationScope().Equals(tagName))
{
metaMetadata = preMM;
}
else
{ // just match in translation scope
//TODO use local TranslationScope if there is one
metaMetadata = SemanticsSessionScope.MetaMetadataRepository.GetMMByName(tagName);
}
deserializedMetadata.MetaMetadata = metaMetadata;
currentMMstack.Push(metaMetadata);
}
else
{
String mmName = mfd.MmName;
MetaMetadataNestedField currentMM = currentMMstack.Peek();
MetaMetadataNestedField childMMNested = (MetaMetadataNestedField) currentMM.LookupChild(mmName); // this fails for collections :-(
if (childMMNested == null)
throw new Exception("Can't find composite child meta-metadata for " + mmName + " amidst "+ mfd +
"\n\tThis probably means there is a conflict between the meta-metadata repository and the runtime."+
"\n\tProgrammer: Have you Changed the fields in built-in Metadata subclasses without updating primitives.xml???!");
MetaMetadataCompositeField childMMComposite = null;
if (childMMNested.IsPolymorphicInherently)
{
String tagName = ClassDescriptor.GetClassDescriptor(deserializedMetadata).TagName;
childMMComposite = SemanticsSessionScope.MetaMetadataRepository.GetMMByName(tagName);
}
else
{
childMMComposite = childMMNested.GetMetaMetadataCompositeField();
}
deserializedMetadata.MetaMetadata = childMMComposite;
currentMMstack.Push(childMMComposite);
}
}
public void deserializationPostHook(MetadataNS.Metadata deserializedMetadata, MetadataFieldDescriptor mfd)
{
currentMMstack.Pop();
}