/// <summary>
/// Creates SQL to create auxiliary database objects.
/// </summary>
/// <param name="dialect">The dialect.</param>
/// <param name="mapping">The mapping.</param>
/// <param name="defaultCatalog">The default catalog.</param>
/// <param name="defaultSchema">The default schema.</param>
/// <returns></returns>
public override string SqlCreateString(NHibernate.Dialect.Dialect dialect, IMapping mapping, string defaultCatalog, string defaultSchema)
{
ISpatialDialect spatialDialect = (ISpatialDialect)dialect;
StringBuilder builder = new StringBuilder();
// Create general objects
builder.Append(spatialDialect.GetSpatialCreateString(defaultSchema));
// Create objects per column
VisitGeometryColumns(delegate(Table table, Column column)
{
// Ugly trick: We use Comparator property to get the column instance of IGeometryUserType.
// (Comparator is mainly used in IVersionType comparisons)
// Maybe it will require to implement IComparer in IGeometryUserType, just to comply.
//
// It would be nicer if CustomType made UserType property public (today is protected).
IGeometryUserType geometryType = (IGeometryUserType)((CustomType)column.Value.Type).Comparator;
// The previous trick allows to get geometry type properties, such as SRID.
int srid = geometryType.SRID;
string subtype = geometryType.Subtype;
builder.Append(spatialDialect.GetSpatialCreateString(defaultSchema, table.Name, column.Name, srid, subtype));
});
return(builder.ToString());
}
/// <summary>
/// Initializes a new instance of the <see cref="GeometryType"/> class.
/// </summary>
public GeometryType()
{
if (SpatialDialect.LastInstantiated == null)
{
throw new MappingException("A GeometryType column has been declared, but there is no spatial dialect configured");
}
this.geometryUserType = SpatialDialect.LastInstantiated.CreateGeometryUserType();
}
/// <summary>
/// Initializes a new instance of the <see cref="GeometryType"/> class.
/// </summary>
public GeometryType()
{
if (SpatialDialect.LastInstantiated == null)
{
throw new MappingException("A GeometryType column has been declared, but there is no spatial dialect configured");
}
this.geometryUserType = SpatialDialect.LastInstantiated.CreateGeometryUserType();
}
private void ColumnVisitorSQLCreate(Table table, Column column, StringBuilder builder, string defaultSchema, ISpatialDialect spatialDialect)
{
IGeometryUserType geometryType = (IGeometryUserType)((CustomType)column.Value.Type).UserType;
int srid = geometryType.SRID;
var key = table.Name + "." + column.Name;
if (SridMap.ContainsKey(key) && SridMap[key] > 0)
{
srid = SridMap[key];
}
string subtype = geometryType.Subtype;
int dimension = geometryType.Dimension;
builder.Append(spatialDialect.GetSpatialCreateString(defaultSchema, table.Name, column.Name, srid, subtype, dimension, column.IsNullable));
}
/// <summary>
/// Creates SQL to create auxiliary database objects.
/// </summary>
/// <param name="dialect">The dialect.</param>
/// <param name="mapping">The mapping.</param>
/// <param name="defaultCatalog">The default catalog.</param>
/// <param name="defaultSchema">The default schema.</param>
/// <returns></returns>
public override string SqlCreateString(NHibernate.Dialect.Dialect dialect, IMapping mapping, string defaultCatalog, string defaultSchema)
{
ISpatialDialect spatialDialect = (ISpatialDialect)dialect;
StringBuilder builder = new StringBuilder();
// Create general objects
builder.Append(spatialDialect.GetSpatialCreateString(defaultSchema));
// Create objects per column
VisitGeometryColumns(delegate(Table table, Column column)
{
IGeometryUserType geometryType = (IGeometryUserType)((CustomType)column.Value.Type).UserType;
int srid = geometryType.SRID;
string subtype = geometryType.Subtype;
int dimension = geometryType.Dimension;
builder.Append(spatialDialect.GetSpatialCreateString(defaultSchema, table.Name, column.Name, srid, subtype, dimension));
});
return(builder.ToString());
}
