242 lines
6.5 KiB
C
242 lines
6.5 KiB
C
/*
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* Copyright (C) 2012 - Juan Ferrer Toribio
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "sql-operation.h"
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#include "sql-value.h"
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/**
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* SECTION: sql-operation
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* @Short_description: operations between #SqlExpr
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* @Title: SqlOperation
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*
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* Any operation over or between one or more #SqlExpr is represented by the
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* #SqlOperation of the corresponding type. To see the different types of
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* #SqlOperation see #SqlOperationType.
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**/
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G_DEFINE_TYPE (SqlOperation, sql_operation, SQL_TYPE_EXPR);
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SqlObject * sql_operation_new (SqlOperationType type)
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{
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return g_object_new (SQL_TYPE_OPERATION, "operator", type, NULL);
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Private
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static const gchar * SQL_OPERATION_TYPE[] =
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{
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"NOT"
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,"-"
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,"+"
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,"*"
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,"/"
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,"+"
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,"-"
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,"IS"
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,"="
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,"!="
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,">="
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,">"
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,"<="
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,"<"
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,"LIKE"
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,"AND"
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,"OR"
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,"XOR"
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,"%"
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,"IN"
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};
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static void sql_operation_render (SqlOperation * self, SqlRender * render)
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{
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sql_render_add_espace (render);
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sql_render_append (render, "(");
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sql_render_add_list (render, TRUE, NULL, self->operands,
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SQL_OPERATION_TYPE[self->type]);
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sql_render_append (render, ")");
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Public
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/**
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* sql_operation_get_operator:
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* @self: a #SqlOperation
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*
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* Return value: the operation type
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**/
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SqlOperationType sql_operation_get_operator (SqlOperation * self)
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{
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g_return_val_if_fail (SQL_IS_OPERATION (self), 0);
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return self->type;
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}
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/**
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* sql_operation_set_operand:
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* @self: a #SqlOperation
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* @type: the operation type
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**/
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void sql_operation_set_operator (SqlOperation * self, SqlOperationType type)
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{
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g_return_if_fail (SQL_IS_OPERATION (self));
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self->type = type;
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}
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/**
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* sql_operation_get_operands:
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* @self: a #SqlOperation
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*
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* Return value: (allow-none) (transfer full): a #SqlList
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**/
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SqlList * sql_operation_get_operands (SqlOperation * self)
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{
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g_return_val_if_fail (SQL_IS_OPERATION (self), NULL);
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return self->operands;
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}
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/**
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* sql_operation_set_operands:
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* @self: a #SqlOperation
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* @operands: a #SqlList
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**/
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void sql_operation_set_operands (SqlOperation * self, SqlList * operands)
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{
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g_return_if_fail (SQL_IS_OPERATION (self));
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g_return_if_fail (SQL_IS_LIST (operands) || !operands);
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sql_object_remove (self, self->operands);
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self->operands = sql_object_add (self, operands);
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Properties
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enum
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{
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PROP_TYPE = 1
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,PROP_OPERANDS
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};
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static void sql_operation_set_property (SqlOperation * self, guint id,
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const GValue * value, GParamSpec * pspec)
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{
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switch (id)
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{
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case PROP_TYPE:
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self->type = g_value_get_enum (value);
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break;
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case PROP_OPERANDS:
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sql_operation_set_operands (self, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (self, id, pspec);
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}
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}
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static void sql_operation_get_property (SqlOperation * self, guint id,
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GValue * value, GParamSpec * pspec)
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{
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switch (id)
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{
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case PROP_TYPE:
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g_value_set_enum (value, self->type);
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break;
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case PROP_OPERANDS:
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g_value_set_object (value, self->operands);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (self, id, pspec);
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}
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Class
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static void sql_operation_init (SqlOperation * self)
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{
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self->operands = NULL;
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}
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static void sql_operation_finalize (SqlOperation * self)
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{
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sql_object_remove (self, self->operands);
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G_OBJECT_CLASS (sql_operation_parent_class)->finalize (G_OBJECT (self));
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}
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static void sql_operation_class_init (SqlOperationClass * klass)
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{
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GObjectClass * k = G_OBJECT_CLASS (klass);
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k->finalize = (GObjectFinalizeFunc) sql_operation_finalize;
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k->set_property = (GObjectSetPropertyFunc) sql_operation_set_property;
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k->get_property = (GObjectGetPropertyFunc) sql_operation_get_property;
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SQL_OBJECT_CLASS (klass)->render = (SqlRenderFunc) sql_operation_render;
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g_object_class_install_property (k, PROP_TYPE,
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g_param_spec_enum ("operator"
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,("Type")
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,("The type of the operation")
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,SQL_TYPE_OPERATION_TYPE
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,SQL_OPERATION_TYPE_AND
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,G_PARAM_READWRITE
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));
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g_object_class_install_property (k, PROP_OPERANDS,
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sql_param_list ("operands"
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,("Operators")
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,("The list of operands")
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,SQL_TYPE_EXPR
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,G_PARAM_READWRITE | G_PARAM_CONSTRUCT
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));
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}
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GType sql_operation_type_get_type ()
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{
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static GType type = 0;
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if (type == 0)
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{
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static const GEnumValue values[] =
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{
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{SQL_OPERATION_TYPE_NOT ,"SQL_OPERATION_TYPE_NOT" ,"not"
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},{SQL_OPERATION_TYPE_MINUS ,"SQL_OPERATION_TYPE_MINUS" ,"minus"
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},{SQL_OPERATION_TYPE_PLUS ,"SQL_OPERATION_TYPE_PLUS" ,"plus"
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},{SQL_OPERATION_TYPE_MULTIPLICATION ,"SQL_OPERATION_TYPE_MULTIPLICATION" ,"multiplication"
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},{SQL_OPERATION_TYPE_DIVISION ,"SQL_OPERATION_TYPE_DIVISION" ,"division"
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},{SQL_OPERATION_TYPE_SUM ,"SQL_OPERATION_TYPE_SUM" ,"sum"
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},{SQL_OPERATION_TYPE_SUBTRACTION ,"SQL_OPERATION_TYPE_SUBTRACTION" ,"subtraction"
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},{SQL_OPERATION_TYPE_IS ,"SQL_OPERATION_TYPE_IS" ,"is"
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},{SQL_OPERATION_TYPE_EQUAL ,"SQL_OPERATION_TYPE_EQUAL" ,"equal"
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},{SQL_OPERATION_TYPE_NOT_EQUAL ,"SQL_OPERATION_TYPE_NOT_EQUAL" ,"not-equal"
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},{SQL_OPERATION_TYPE_GREATER_EQUAL ,"SQL_OPERATION_TYPE_GREATER_EQUAL" ,"greater-equal"
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},{SQL_OPERATION_TYPE_GREATER ,"SQL_OPERATION_TYPE_GREATER" ,"greater"
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},{SQL_OPERATION_TYPE_LOWER_EQUAL ,"SQL_OPERATION_TYPE_LOWER_EQUAL" ,"lower-equal"
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},{SQL_OPERATION_TYPE_LOWER ,"SQL_OPERATION_TYPE_LOWER" ,"lower"
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},{SQL_OPERATION_TYPE_LIKE ,"SQL_OPERATION_TYPE_LIKE" ,"like"
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},{SQL_OPERATION_TYPE_AND ,"SQL_OPERATION_TYPE_AND" ,"and"
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},{SQL_OPERATION_TYPE_OR ,"SQL_OPERATION_TYPE_OR" ,"or"
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},{SQL_OPERATION_TYPE_XOR ,"SQL_OPERATION_TYPE_XOR" ,"xor"
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},{SQL_OPERATION_TYPE_MOD ,"SQL_OPERATION_TYPE_MOD" ,"mod"
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},{SQL_OPERATION_TYPE_IN ,"SQL_OPERATION_TYPE_IN" ,"in"
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},{0, NULL, NULL}
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};
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type = g_enum_register_static
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(g_intern_static_string ("SqlOperationType"), values);
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}
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return type;
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}
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