I could be wrong, this is off the top of my head, but I think the AsMap
method can take a generic parameter for the type. Try replacing your
AsMap("Value") with AsMap<string>("Value")

On Mon, Jul 27, 2009 at 6:32 PM, Everett Muniz <[email protected]>wrote:

> I have a situation where an entity has a list of value objects associated
> with it.  Given that the objects are value objects from the domain model
> point-of-view I'd rather not have the class cluttered up with properties
> just to support database mapping.  So, I'm using the mapping...
>
> HasMany<ColorMapEntry>(Reveal.Property<ColorMap>("Entries"))
>     .AsMap("Value")
>     .KeyColumnNames.Add("ColorMapID")
>     .WithTableName("ColorMapEntry")
>     .Component(c =>
>     {
>         c.Map(x => x.Alpha);
>         c.Map(x => x.Blue);
>         c.Map(x => x.Green);
>         c.Map(x => x.Red);
>     })
>     .Cascade.AllDeleteOrphan();
> }
>
> This produces the hbml...
>
>     <map name="Entries" cascade="all-delete-orphan" table="ColorMapEntry">
>       <key column="ColorMapID" />
> *      <index type="System.Int32, mscorlib, Version=2.0.0.0,
> Culture=neutral, PublicKeyToken=b77a5c561934e089" column="Value" />*
>       <composite-element
> class="GBS.VersiLabel.Core.Domain.Model.ColorMapEntry, GBS.VersiLabel.Core,
> Version=1.0.0.0, Culture=neutral, PublicKeyToken=null">
>         <property name="Alpha">
>           <column name="Alpha" />
>         </property>
>         <property name="Blue">
>           <column name="Blue" />
>         </property>
>         <property name="Green">
>           <column name="Green" />
>         </property>
>         <property name="Red">
>           <column name="Red" />
>         </property>
>       </composite-element>
>     </map>
>
> This mapping is almost perfect but I'm stuck at how to effect the 'type'
> attribute of the highlighted index element.  The type of the column 'Value'
> should be 'string' but I don't see how to set that.
>
> The 'Entries' property referred to by the <map> element looks like this...
>
> protected internal virtual IDictionary<string, ColorMapEntry> Entries
> {
>     get
>     {
>         if (_entries == null)
>         {
>             _entries = new Dictionary<string, ColorMapEntry>();
>         }
>         return _entries;
>     }
>     set { _entries = value; }
> }
>
> I don't know that it will be helpful but the ColorMapEntry class looks like
> this...
>
> public class ColorMapEntry
> {
>     private const int ColorPartMax = 255;
>     private const int ColorPartMin = 0;
>
>     private static bool colorPartInRange(int colorPart)
>     {
>         return colorPart >= ColorPartMin && colorPart <= ColorPartMax;
>     }
>
>     private static bool not(bool value)
>     {
>         return !(value);
>     }
>
>     protected internal ColorMapEntry()
>     {
>     }
>
>     public ColorMapEntry(int alpha, int red, int green, int blue)
>     {
>         if (not(colorPartInRange(alpha)))
>             throw new ArgumentException("alpha is not between 0 and 255.");
>         if (not(colorPartInRange(red)))
>             throw new ArgumentException("red is not between 0 and 255.");
>         if (not(colorPartInRange(green)))
>             throw new ArgumentException("green is not between 0 and 255.");
>         if (not(colorPartInRange(blue)))
>             throw new ArgumentException("blue is not between 0 and 255.");
>
>         this.Alpha = alpha;
>         this.Red = red;
>         this.Green = green;
>         this.Blue = blue;
>     }
>
>     public ColorMapEntry(int red, int green, int blue)
>         : this(255, red, green, blue)
>     {
>     }
>
>     public ColorMapEntry(Color color)
>         : this(color.A, color.R, color.G, color.B)
>     {
>     }
>
>     public virtual int Alpha { get; set; }
>
>     public virtual int Blue { get; set; }
>
>     public virtual int Green { get; set; }
>
>     public virtual int Red { get; set; }
> }
>
> >
>

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