NullValue.cpp

00001 /*
00002  * NullValue.cpp
00003  *
00004  * Created on: Nov 1, 2013
00005  * * Authors: Vincent Wochnik <v.wochnik@gmail.com>
00006  *
00007  * Copyright (c) 2013 Cumulocity GmbH
00008  *
00009  * Permission is hereby granted, free of charge, to any person obtaining
00010  * a copy of this software and associated documentation files (the
00011  * "Software"), to deal in the Software without restriction, including
00012  * without limitation the rights to use, copy, modify, merge, publish,
00013  * distribute, sublicense, and/or sell copies of the Software, and to
00014  * permit persons to whom the Software is furnished to do so, subject to
00015  * the following conditions:
00016  *
00017  * The above copyright notice and this permission notice shall be
00018  * included in all copies or substantial portions of the Software.
00019  *
00020  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00021  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00022  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00023  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00024  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00025  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00026  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00027  */
00028 
00029 #include "NullValue.h"
00030 
00031 
00032 NullValue aNullValue;
00033 
00034 /*-------------------------------------------------------------------------*/
00035 NullValue::NullValue()
00036 {
00037 }
00038 /*-------------------------------------------------------------------------*/
00039 uint8_t NullValue::valueType() const
00040 {
00041     return VALUE_NULL;
00042 }
00043 /*-------------------------------------------------------------------------*/
00044 long NullValue::integerValue() const
00045 {
00046     return 0;
00047 }
00048 /*-------------------------------------------------------------------------*/
00049 double NullValue::floatValue() const
00050 {
00051     return 0.0;
00052 }
00053 /*-------------------------------------------------------------------------*/
00054 const char * NullValue::characterValue() const
00055 {
00056     return NULL;
00057 }
00058 /*-------------------------------------------------------------------------*/
00059 size_t NullValue::write(AbstractDataSink&) const
00060 {
00061     return 0;
00062 }
00063 /*-------------------------------------------------------------------------*/
00064 size_t NullValue::length() const
00065 {
00066     return 0;
00067 }
00068 /*-------------------------------------------------------------------------*/
00069 Value* NullValue::copy() const
00070 {
00071     return new NullValue();
00072 }
00073 /*-------------------------------------------------------------------------*/