00001 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*- 00002 * vim:expandtab:shiftwidth=2:tabstop=2:smarttab: 00003 * 00004 * Copyright (C) 2009, Patrick "CaptTofu" Galbraith, Padraig O'Sullivan 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions are met: 00009 * 00010 * * Redistributions of source code must retain the above copyright notice, 00011 * this list of conditions and the following disclaimer. 00012 * * Redistributions in binary form must reproduce the above copyright notice, 00013 * this list of conditions and the following disclaimer in the documentation 00014 * and/or other materials provided with the distribution. 00015 * * Neither the name of Patrick Galbraith nor the names of its contributors 00016 * may be used to endorse or promote products derived from this software 00017 * without specific prior written permission. 00018 * 00019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00021 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00022 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 00023 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00024 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00025 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00026 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00027 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 00029 * THE POSSIBILITY OF SUCH DAMAGE. 00030 * 00031 */ 00032 00033 #pragma once 00034 00035 #include <drizzled/function/str/strfunc.h> 00036 #include <drizzled/item/func.h> 00037 #include <string> 00038 00039 00044 class MemcachedAddByKey : public drizzled::Item_int_func 00045 { 00046 drizzled::String value; 00047 drizzled::String failure_buff; 00048 public: 00049 MemcachedAddByKey() 00050 : 00051 Item_int_func(), 00052 failure_buff("0", &drizzled::my_charset_bin) 00053 {} 00054 00055 const char *func_name() const 00056 { 00057 return "memc_add_by_key"; 00058 } 00059 00060 int64_t val_int(); 00061 00062 void fix_length_and_dec() 00063 { 00064 max_length= 32; 00065 } 00066 /* 00067 * This UDF takes 3 or 4 arguments 00068 */ 00069 00070 bool check_argument_count(int n) 00071 { 00072 return ((n == 3 || n == 4)); 00073 } 00074 }; 00075