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136 lines
4.2 KiB
C++
136 lines
4.2 KiB
C++
/* ------------------------------------------------------------------------ */
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/* Copyright 2002-2010, OpenNebula Project Leads (OpenNebula.org) */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
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/* not use this file except in compliance with the License. You may obtain */
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/* a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
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/* See the License for the specific language governing permissions and */
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/* limitations under the License. */
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/* ------------------------------------------------------------------------ */
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#ifndef TEMPLATE_SQL_H_
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#define TEMPLATE_SQL_H_
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#include <iostream>
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#include <map>
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#include <vector>
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#include "Template.h"
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#include "SqlDB.h"
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#include "ObjectSQL.h"
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using namespace std;
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/**
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* SQL Template class, it provides DB support for template objects
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*/
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class TemplateSQL : public Template, public ObjectSQL
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{
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public:
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TemplateSQL(
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const char * _table,
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int template_id = -1,
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bool replace = false,
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const char separator = '=',
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const char * xml_root = "TEMPLATE"):
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Template(replace,separator,xml_root),table(_table),id(template_id)
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{};
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virtual ~TemplateSQL(){};
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protected:
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//Database implementation variables
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const char * table;
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static const char * db_names;
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//Template attributes
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/**
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* Template unique identification.
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*/
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int id;
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/**
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* Writes the template in the DB
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* @param db pointer to the database.
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* @return 0 on success.
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*/
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int insert(SqlDB * db);
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/**
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* Updates the template in the DB
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* @param db pointer to the database.
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* @return 0 on success.
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*/
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int update(SqlDB *db);
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/**
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* Reads the template (identified by its id) from the DB
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* @param db pointer to the database.
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* @return 0 on success.
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*/
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int select(SqlDB *db);
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/**
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* Removes the template from the DB
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* @param db pointer to the database.
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*/
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int drop(SqlDB *db);
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/**
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* Execute an INSERT or REPLACE Sql query.
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* @param db The SQL DB
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* @param replace Execute an INSERT or a REPLACE
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* @return 0 one success
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*/
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int insert_replace(SqlDB *db, bool replace);
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/**
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* Removes a template attribute from the DB. If there are multiple
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* attributes with the same name, only one will be replaced. The
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* attribute MUST be allocated in the heap.
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* @param db pointer to the database.
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* @param attribute pointer to the new attribute.
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*/
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int replace_attribute(SqlDB * db, Attribute * attribute);
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/**
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* Insert a given attribute (MUST be allocated in the heap) in the template
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* and updates the DB.
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* @param db pointer to the database.
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* @param attribute pointer to the new attribute
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*/
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int insert_attribute(SqlDB * db, Attribute * attribute);
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/**
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* Remove a given attribute from the template and the DB.
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* @param db pointer to the database.
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* @param name name of the attribute
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*/
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int remove_attribute(SqlDB * db, const string& name);
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/**
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* Callback to set the template id (TemplateSQL::insert)
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*/
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int insert_cb(void *nil, int num, char **values, char **names);
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/**
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* Callback to recover template attributes (TemplateSQL::select)
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*/
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int select_cb(void *nil, int num, char **values, char **names);
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};
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/* ------------------------------------------------------------------------ */
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/* ------------------------------------------------------------------------ */
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#endif /*TEMPLATE_SQL_H_*/
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