/// <summary>
/// Maps the defined <see cref="Type"/> to the supplied <see cref="TypeMap"/> using
/// attributes from the <see cref="N:Ikarii.Lib.Data.Alpaca.Attributes"/> namespace.
/// </summary>
/// <param name="t"><see cref="Type"/> to map.</param>
/// <param name="otm"><see cref="TypeMap"/> instance to populate with mappings.</param>
public override void MapByType( Type t, TypeMap otm )
{
this.Context = otm;
this.Context.Table = this.GetTableName( t );
this.Context.SetNamingConvention( this.GetConvention( t ) );
List<PropertyInfo> fields = new List<PropertyInfo>( t.GetProperties() );
fields.FindAll( f => ValidField( f, t ) )
.ForEach( f => this.HandleField( f, Utility.GetCustomFieldAttribute<IFieldAttribute>( f ), t ) );
}
/// <summary>
/// Maps the given <see cref="T:Type"/> <paramref name="t"/> to the specified <see cref="T:TypeMap"/> <paramref name="otm"/>.
/// </summary>
/// <param name="t"><see cref="T:Type"/> to map.</param>
/// <param name="otm"><see cref="T:TypeMap"/> to populate.</param>
public override void MapByType( Type t, TypeMap otm )
{
this.Context = otm;
this.Context.SetNamingConvention( Configuration.AlpacaConfiguration.Settings.GetNamingConvention() );
List<PropertyInfo> fields = new List<PropertyInfo>( t.GetProperties() );
this.Context.SetPrimaryKey( FindPrimaryKey( fields ) );
this.FindChildren( fields );
this.FindForeignKeys( fields );
this.FindReferencedFields( fields );
fields.FindAll( f => Utility.IsElemental( f.PropertyType ) )
.ForEach( value => this.HandleField( value ) );
}
/// <summary>
/// Instantiates PersistentPackage to be used for persistence operations.
/// <remarks>This is useful when you have a sub class instantiated and want to deserialize or serialize it's base.</remarks>
/// </summary>
/// <param name="o"><see cref="T:Object"/> marked with <see cref="T:Ikarii.Lib.Data.Alpaca.PersistentAttribute"/>.</param>
/// <param name="t"><see cref="T:Type"/> marked with <see cref="T:Ikarii.Lib.Data.Alpaca.PersistentAttribute"/>.</param>
/// <param name="parent">Parent <see cref="T:ObjectTypeMap"/> which will be used in operations where the ForeignKey of this object is needed.</param>
/// <param name="mappingProvider">The <see cref="T:IMappingProvider"/> used to create the <see cref="T:PersistentObject"/>.</param>
internal ObjectPackage( object o, Type t, TypeMap parent, IMappingProvider mappingProvider )
{
this.MappingProvider = mappingProvider;
this.ParentMap = parent;
this.Instance = o;
if ( TypeCache.ContainsType( t ) )
{
this.Map = TypeCache.GetType( t );
}
else
{
this.Map = new TypeMap( t, mappingProvider );
TypeCache.AddType( t, this.Map );
}
}
private void FindChildren( List<PropertyInfo> fields )
{
fields.FindAll( f => this.CanMapByType( f.PropertyType ) && f.CanWrite )
.ForEach( child =>
{
TypeMap childmap = new TypeMap( child.PropertyType, new ActiveMappingProvider() );
List<FieldMap> fks = childmap.ForeignKeys.ToList();
FieldMap fm = fks.Find( parent => parent.FieldReturnType.Equals( this.Context.Type ) );
this.Context.AddChild( new PersistentFieldMap()
{
Field = child,
ChildReturnType = child.PropertyType,
Behavior = FieldBehavior.Inherit,
Cascade = Cascade.All,
Linked = false,
Lazy = false
} );
} );
//Children that are contained in collections MUST be named plural of their type.
//So if a Car has more than one Tire in a ICollection, the Collection must be named Tires
fields.FindAll( f => Utility.ImplementsInterface( f.PropertyType, typeof( ICollection ) ) )
.ForEach( child =>
{
Type innerChild = Type.GetType( String.Format( "{0}.{1}", child.PropertyType.Namespace, Helper.Inflector.Singularize( child.Name ) ) );
TypeMap childmap = new TypeMap( innerChild, new ActiveMappingProvider() );
List<FieldMap> fks = childmap.ForeignKeys.ToList();
FieldMap fm = fks.Find( parent => parent.FieldReturnType.Equals( this.Context.Type ) );
this.Context.AddChild( new PersistentFieldMap()
{
Field = child,
ChildReturnType = child.PropertyType,
Behavior = FieldBehavior.Inherit,
Cascade = ( fm.Null() ? Cascade.Update : Cascade.All ),
Linked = ( fm.Null() ? true : false ),
Lazy = false
} );
} );
}
/// <summary> /// Maps the defined <see cref="T:Type"/> to the supplied <see cref="T:TypeMap"/>. /// </summary> /// <param name="t"><see cref="T:Type"/> to map.</param> /// <param name="otm"><see cref="T:TypeMap"/> instance to populate with mappings.</param> public abstract void MapByType( Type t, TypeMap otm );
/// <summary>
/// Instantiates PersistentPackage to be used for persistence operations.
/// </summary>
/// <param name="t"><see cref="Type"/> marked with <see cref="Ikarii.Lib.Data.Alpaca.Meta.PersistentAttribute"/>.</param>
/// <param name="parent">Parent <see cref="PersistentObject"/> which will be used in operations where the ForeignKey of this object is needed.</param>
/// <param name="mappingProvider">The <see cref="IMappingProvider"/> used to create the <see cref="PersistentObject"/>.</param>
internal ObjectPackage( Type t, TypeMap parent, IMappingProvider mappingProvider )
: this(t.Assembly.CreateInstance( t.FullName ), t, parent, mappingProvider)
{
}
/// <summary>
/// Registers a <see cref="T:TypeMap"/> with the Type cache.
/// </summary>
/// <param name="typemap"><see cref="T:TypeMap"/> to register.</param>
public void RegisterTypeMap( TypeMap typemap )
{
TypeCache.AddType( typemap.Type, typemap );
}
private void FindReferencedFields( List<PropertyInfo> fields )
{
//if field is object and can be mapped and does not have a reference to this object via identity or type
fields.FindAll( f => this.CanMapByType( f.PropertyType ) && f.CanWrite )
.ForEach( child =>
{
TypeMap childmap = new TypeMap( child.PropertyType, new ActiveMappingProvider() );
List<FieldMap> fks = childmap.ForeignKeys.ToList();
FieldMap fm = fks.Find( parent => parent.FieldReturnType.Equals( this.Context.Type ) );
if ( fm.Null() )
{
this.Context.AddReferencedField( new FieldMap()
{
Field = child,
Behavior = FieldBehavior.Inherit,
Cascade = Cascade.None,
MappingType = FieldMappingType.Reference
} );
}
} );
}
