ExternalLong.st
author Claus Gittinger <cg@exept.de>
Tue, 22 Jan 2008 23:31:54 +0100
changeset 1926 b7740748e15c
parent 623 cd16d122c83e
child 2329 63e0cb1a051e
permissions -rw-r--r--
copyright

"
 COPYRIGHT (c) 1998 by eXept Software AG
              All Rights Reserved

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.
"
"{ Package: 'stx:libbasic2' }"

ExternalBytes subclass:#ExternalLong
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'System-Support'
!

!ExternalLong class methodsFor:'documentation'!

copyright
"
 COPYRIGHT (c) 1998 by eXept Software AG
              All Rights Reserved

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.
"
! !

!ExternalLong class methodsFor:'instance creation'!

new
    ^ super new:4

    "
     ExternalLong new
    "
!

unprotectedNew
    ^ super unprotectedNew:4

    "
     ExternalLong new
    "
! !

!ExternalLong methodsFor:'accessing'!

asBoolean

    |result|

    result := self byteAt:1.
    result = 0 ifTrue:[
        ^ false.
    ].
    ^ true.

    "
    "
!

asInteger
    ^ self signedWordAt:1 MSB:false

    "
     ODBCLibrary::ExternalLong new value:10
    "
!

asNullStatus

    |result|

    result := self wordAt:1 MSB:false.
    result = 0 ifTrue:[
        ^ #SQL_NO_NULLS.
    ] ifFalse:[
        result = 1 ifTrue:[
            ^ #SQL_NULLABLE.
        ] ifFalse:[
            ^ #SQL_NULLABLE_UNKNOWN
        ].
    ].
    ^ nil
!

boolean:bool

    |result|

    bool ifTrue:[self byteAt:1 put:1].
    self byteAt:1 put:0.
!

value
    ^ self doubleWordAt:1

    "
     ExternalLong new value:10
    "

    "Modified: / 30.3.1998 / 17:07:57 / cg"
!

value:anInteger
    self doubleWordAt:1 put:anInteger
! !

!ExternalLong class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/libbasic2/ExternalLong.st,v 1.4 2008-01-22 22:31:54 cg Exp $'
! !