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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2006, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id:Field.scala 6853 2006-03-20 16:58:47 +0100 (Mon, 20 Mar 2006) dubochet $
package scala.dbc.result;
import scala.dbc.datatype._;
import scala.dbc.value._;
/** An ISO-9075:2003 (SQL) table field. */
abstract class Field {
/** The content (value) of the field. The type of this value is undefined,
* transformation into a useful type will be done by an automatic view
* function defined in the field object. */
def content: Value;
final def value[Type <: Value]: Type =
content.asInstanceOf[Type];
final def exactNumericValue[NativeType] =
content.asInstanceOf[dbc.value.ExactNumeric[NativeType]];
final def approximateNumericValue[NativeType] =
content.asInstanceOf[dbc.value.ApproximateNumeric[NativeType]];
final def booleanValue =
content.asInstanceOf[dbc.value.Boolean];
final def characterValue =
content.asInstanceOf[dbc.value.Character];
final def characterLargeObjectValue =
content.asInstanceOf[dbc.value.CharacterLargeObject];
final def characterVaryingValue =
content.asInstanceOf[dbc.value.CharacterVarying];
final def unknownValue =
content.asInstanceOf[dbc.value.Unknown];
/** The tuple that contains this field. */
def originatingTuple: Tuple;
/** The field metadata attached to this field. */
def metadata: FieldMetadata;
}
object Field {
implicit def fieldToValue (field:Field): Value = field.content;
}
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