public FirstCharGroupingFunction(MediaItemAspectMetadata.AttributeSpecification attributeType)
{
_attributeType = attributeType;
if (_emptyOrMiscCharacterGroupName == null)
_emptyOrMiscCharacterGroupName = LocalizationHelper.Translate(EMPTY_OR_MISC_CHAR_GROUP_NAME_RES);
// TODO: How to get all valid letters in all variants (with umlauts etc.)?
_letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
}
/// <summary>
/// Creates a new <see cref="ComplexAttributeQueryBuilder"/> instance.
/// </summary>
/// <param name="miaManagement">MIAM management instance from media library.</param>
/// <param name="complexQueryAttribute">Complex attribute, which is requested by this query. Only attributes
/// with a cardinality different from <see cref="Cardinality.Inline"/> are allowed here.</param>
/// <param name="selectProjectionFunction">This delegate function will be called for the selected attribute.
/// It must return an SQL projection expression whose return value is the requested value for that attribute.
/// If this delegate function is <c>null</c>, the actual attribute is selected without a projection function.</param>
/// <param name="necessaryRequestedMIAs">MIAs which must be present for the media item to match the query.</param>
/// <param name="filter">Filter which must be applied to the media items to match the query.</param>
public ComplexAttributeQueryBuilder(
MIA_Management miaManagement,
MediaItemAspectMetadata.AttributeSpecification complexQueryAttribute,
SelectProjectionFunction selectProjectionFunction,
IEnumerable<MediaItemAspectMetadata> necessaryRequestedMIAs, IFilter filter) : base(miaManagement)
{
_queryAttribute = complexQueryAttribute;
_selectProjectionFunction = selectProjectionFunction;
_necessaryRequestedMIAs = necessaryRequestedMIAs;
_filter = filter;
}
public CompiledGroupedAttributeValueQuery(
MIA_Management miaManagement,
IEnumerable<MediaItemAspectMetadata> necessaryRequestedMIATypes,
MediaItemAspectMetadata.AttributeSpecification selectedAttribute, IAttributeFilter selectAttributeFilter,
SelectProjectionFunction selectProjectionFunction, Type projectionValueType,
IFilter filter)
{
_miaManagement = miaManagement;
_necessaryRequestedMIATypes = necessaryRequestedMIATypes;
_selectAttribute = selectedAttribute;
_selectAttributeFilter = selectAttributeFilter;
_selectProjectionFunction = selectProjectionFunction;
_projectionValueType = projectionValueType;
_filter = filter;
}
public SimpleMLFilterCriterion(MediaItemAspectMetadata.AttributeSpecification attributeType)
{
_attributeType = attributeType;
}
public QueryAttribute(MediaItemAspectMetadata.AttributeSpecification attr)
{
_attr = attr;
}
/// <summary>
/// Sets the collection attribute of type <paramref name="attributeSpecification"/> for this
/// media item aspect.
/// </summary>
/// <remarks>
/// A call to this method automatically resets the "ignore" flag for the given attribute.
/// </remarks>
/// <param name="attributeSpecification">Attribute type to set.</param>
/// <param name="value">Enumeration of values to be set to the specified attribute.</param>
/// <exception cref="ArgumentException">Thrown if an attribute type is specified which is not defined on this
/// MIA's metadata or if the most specific type of all elements in the <paramref name="value"/> enumeration
/// doesn't match the defined type in the <paramref name="attributeSpecification"/>.</exception>
public void SetCollectionAttribute(MediaItemAspectMetadata.AttributeSpecification attributeSpecification, IEnumerable value)
{
CheckCollectionAttribute(attributeSpecification);
_aspectData[attributeSpecification] = value;
}
protected object CheckString(MediaItemAspectMetadata.AttributeSpecification attributeSpecification, string str)
{
return(str == null || str.Length <= attributeSpecification.MaxNumChars ? str :
str.Substring(0, (int)attributeSpecification.MaxNumChars));
}
public void Ignore(MediaItemAspectMetadata.AttributeSpecification attributeSpecification)
{
_aspectData[attributeSpecification] = IGNORE;
}
public bool IsIgnore(MediaItemAspectMetadata.AttributeSpecification attributeSpecification)
{
return(ReferenceEquals(_aspectData[attributeSpecification], IGNORE));
}
private static bool SpecificationsAreEqual(MediaItemAspect aspect, MultipleMediaItemAspect value, MediaItemAspectMetadata.AttributeSpecification spec)
{
if (aspect[spec] == null)
{
return(value[spec] == null);
}
return(aspect[spec].Equals(value[spec]));
}
