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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2005, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.dbc.datatype;
/** A SQL type for a varying length string of characters with arbitrary
* maximal length and arbitrary character set.
*/
abstract class CharacterVarying extends CharacterString {
def isEquivalent(datatype: DataType) = datatype match {
case dt: CharacterVarying =>
length == dt.length && encoding == dt.encoding
case _ =>
false
}
def isSubtypeOf(datatype: DataType) = datatype match {
case dt: CharacterVarying =>
length >= dt.length && encoding == dt.encoding
case _ =>
false
}
/** The maximal length of the string defined in characters. */
def length: Int;
/** A SQL-99 compliant string representation of the type. */
override def sqlString: java.lang.String =
"CHARACTER VARYING (" + length.toString() + ")";
}
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