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 NullValue aNullValue;
00032 
00033 NullValue::NullValue()
00034 {
00035 }
00036 
00037 uint8_t NullValue::valueType() const
00038 {
00039     return VALUE_NULL;
00040 }
00041 
00042 long NullValue::integerValue() const
00043 {
00044     return 0;
00045 }
00046 
00047 double NullValue::floatValue() const
00048 {
00049     return 0.0;
00050 }
00051 
00052 char * NullValue::characterValue() const
00053 {
00054     return NULL;
00055 }
00056 
00057 size_t NullValue::write(AbstractDataSink&) const
00058 {
00059     return 0;
00060 }
00061 
00062 size_t NullValue::length() const
00063 {
00064     return 0;
00065 }
00066 
00067 Value* NullValue::copy() const
00068 {
00069     return new NullValue();
00070 }
00071