--- /dev/null
+/*
+ * Compile with:
+ * gcc -o eina_model_example eina_model_example.c `pkg-config --cflags --libs eina`
+ */
+
+/*
+ * This example demonstrates the usage of Eina Model by implementing
+ * Bank Account Class, which is inherited from Base Class;
+ * and Credit Card Class, which is inherited from Bank Account Class.
+ *
+ * Base Class(Eina_Model_Type) --> Bank Account Class --> Credit Card Class
+ *
+ * Bank Account Class implements "bank_account_data_set()" and "print()" methods;
+ * Credit Card Class inherits these two and implements "credit_card_data_set()"
+ *
+ *
+ * Bank Account Class::print() calls for "_bank_account_data_print"
+ * Credit Card Class ::print() is reloaded with "_credit_card_data_print()"
+ * which calls for parent function "_bank_account_data_print"
+ *
+ */
+
+
+#include <Eina.h>
+#include <eina_safety_checks.h>
+
+/*
+ * Defining type for new model type
+ * Model will have two methods
+ */
+typedef struct _Bank_Account_Type
+{
+ Eina_Model_Type parent_class;
+ void (*bank_account_data_set)(Eina_Model *, const char *name, const char *number);
+ void (*print)(Eina_Model *);
+} Bank_Account_Type;
+
+/*
+ * Defining type for Bank Account private data
+ */
+typedef struct _Bank_Account_Data
+{
+ char name[30];
+ char number[30];
+} Bank_Account_Data;
+
+/*
+ * Defining type for Credit Card model type, which will be inherited from Bank Account model type
+ * Model will have two parent's methods and additional one
+ */
+typedef struct _Credit_Card_Type
+{
+ Bank_Account_Type parent_class;
+ void (*credit_card_data_set)(Eina_Model *, const char *, const char *, int) ;
+} Credit_Card_Type;
+
+/*
+ * Defining type for Credit Card private data
+ */
+typedef struct _Credit_Card_Data
+{
+ char number[30];
+ char expiry_date[30];
+ int pin;
+} Credit_Card_Data;
+
+static Bank_Account_Type _BANK_ACCOUNT_TYPE;
+static Credit_Card_Type _CREDIT_CARD_TYPE;
+static Eina_Model_Type *BANK_ACCOUNT_TYPE = (Eina_Model_Type *) &_BANK_ACCOUNT_TYPE;
+static Eina_Model_Type *CREDIT_CARD_TYPE = (Eina_Model_Type *) &_CREDIT_CARD_TYPE;
+
+
+/*
+ * Defining method for for Bank Account data
+ */
+static void
+_bank_account_data_set(Eina_Model *mdl, const char *name, const char *number)
+{
+ Bank_Account_Data *bdata = eina_model_type_private_data_get(mdl, BANK_ACCOUNT_TYPE);
+
+ if (!bdata)
+ printf("ERROR\n");
+
+ if (name != NULL)
+ {
+ strncpy(bdata->name, name, sizeof(bdata->name));
+ bdata->name[sizeof(bdata->number) - 1] = '\0';
+ }
+
+ if (number != NULL)
+ {
+ strncpy(bdata->number, number, sizeof(bdata->number));
+ bdata->number[sizeof(bdata->number) - 1] = '\0';
+ }
+
+ printf("%s :: %s %p\n", eina_model_type_name_get(eina_model_type_get(mdl)) ,__func__, mdl);
+}
+
+
+static void
+_credit_card_data_set(Eina_Model *mdl, const char *number, const char *expiry_date, int pin)
+{
+ Credit_Card_Data *cdata = eina_model_type_private_data_get(mdl, CREDIT_CARD_TYPE);
+
+ if (!cdata)
+ printf("ERROR\n");
+
+ if (number != NULL)
+ {
+ strncpy(cdata->number, number, sizeof(cdata->number));
+ cdata->number[sizeof(cdata->number) - 1] = '\0';
+ }
+
+ if (expiry_date != NULL)
+ {
+ strncpy(cdata->expiry_date, expiry_date, sizeof(cdata->expiry_date));
+ cdata->expiry_date[sizeof(cdata->expiry_date) - 1] = '\0';
+ }
+
+ cdata->pin = pin;
+ printf("%s :: %s %p\n", eina_model_type_name_get(eina_model_type_get(mdl)) ,__func__, mdl);
+}
+
+static void
+_bank_account_data_print(Eina_Model *mdl)
+{
+ const Bank_Account_Data *bdata = eina_model_type_private_data_get(mdl, BANK_ACCOUNT_TYPE);
+
+ printf("\n%s :: %s %p \n\tName: %s(%p)\n\tAccount: %s(%p)\n", eina_model_type_name_get(eina_model_type_get(mdl)) ,__func__, mdl
+ , bdata->name, bdata->name, bdata->number, bdata->number);
+}
+
+static void
+_credit_card_data_print(Eina_Model *mdl)
+{
+ void (*pf)(Eina_Model *);
+ const Eina_Model_Type *ptype = eina_model_type_parent_get(eina_model_type_get(mdl));
+ //const Eina_Model_Type *ptype = eina_model_type_get(mdl);
+
+ pf = eina_model_type_method_resolve(ptype, mdl, Bank_Account_Type, print);
+ if (pf)
+ pf(mdl);
+ else
+ printf("ERROR: %d", __LINE__);
+ const Credit_Card_Data *cdata = eina_model_type_private_data_get(mdl, CREDIT_CARD_TYPE);
+ printf("%s :: %s %p \n\tNumber: %s(%p)\n\tCC Expiry Date: %s(%p)\n\tCC PIN: %d(%p)\n", eina_model_type_name_get(eina_model_type_get(mdl)) ,__func__, mdl
+ , cdata->number, cdata->number, cdata->expiry_date, cdata->expiry_date, cdata->pin, &cdata->pin);
+}
+
+#define BANK_ACCOUNT(x) ((Bank_Account_Type *) x)
+#define CREDIT_CARD(x) ((Credit_Card_Type *) x)
+
+void
+bank_account_data_set(Eina_Model *mdl, const char *name, char *number)
+{
+
+ EINA_SAFETY_ON_FALSE_RETURN(eina_model_instance_check(mdl, BANK_ACCOUNT_TYPE));
+
+ void (*pf)(Eina_Model *, const char *, const char *);
+ pf = eina_model_method_resolve(mdl, Bank_Account_Type, bank_account_data_set);
+ if (pf)
+ pf(mdl, name, number);
+ else
+ printf("ERROR %d\n", __LINE__);
+}
+
+void
+data_print(Eina_Model *mdl)
+{
+ EINA_SAFETY_ON_FALSE_RETURN(eina_model_instance_check(mdl, BANK_ACCOUNT_TYPE));
+
+ void (*pf)(Eina_Model *);
+ pf = eina_model_method_resolve(mdl, Bank_Account_Type, print);
+ if (pf)
+ pf(mdl);
+ else
+ printf("ERROR %d\n", __LINE__);
+}
+
+void
+credit_card_data_set(Eina_Model *mdl, const char *number, const char *expiry_date, int pin)
+{
+ EINA_SAFETY_ON_FALSE_RETURN(eina_model_instance_check(mdl, CREDIT_CARD_TYPE));
+
+ void (*pf)(Eina_Model *, const char *, const char *, int);
+ pf = eina_model_method_resolve(mdl, Credit_Card_Type, credit_card_data_set);
+ if (pf)
+ pf(mdl, number, expiry_date, pin);
+ else
+ printf("ERROR %d\n", __LINE__);
+}
+
+int main(void)
+{
+ Eina_Model *b, *cc;
+
+ eina_init();
+
+ memset(&_BANK_ACCOUNT_TYPE, 0, sizeof(_BANK_ACCOUNT_TYPE));
+ memset(&_CREDIT_CARD_TYPE, 0, sizeof(_CREDIT_CARD_TYPE));
+
+ BANK_ACCOUNT_TYPE->version = EINA_MODEL_TYPE_VERSION;
+ BANK_ACCOUNT_TYPE->type_size = sizeof(Bank_Account_Type);
+ BANK_ACCOUNT_TYPE->private_size = sizeof(Bank_Account_Data);
+ BANK_ACCOUNT_TYPE->name = "Bank_Account_Model";
+ BANK_ACCOUNT_TYPE->parent = EINA_MODEL_TYPE_GENERIC;
+ BANK_ACCOUNT(BANK_ACCOUNT_TYPE)->bank_account_data_set = _bank_account_data_set;
+ BANK_ACCOUNT(BANK_ACCOUNT_TYPE)->print = _bank_account_data_print;
+
+ CREDIT_CARD_TYPE->version = EINA_MODEL_TYPE_VERSION;
+ CREDIT_CARD_TYPE->type_size = sizeof(Credit_Card_Type);
+ CREDIT_CARD_TYPE->private_size = sizeof(Credit_Card_Data);
+ CREDIT_CARD_TYPE->name = "Credit_Card_Model";
+ CREDIT_CARD_TYPE->parent = BANK_ACCOUNT_TYPE;
+ CREDIT_CARD(CREDIT_CARD_TYPE)->credit_card_data_set = _credit_card_data_set;
+ BANK_ACCOUNT(CREDIT_CARD_TYPE)->print = _credit_card_data_print;
+
+ b = eina_model_new(BANK_ACCOUNT_TYPE); //creating object of bank class
+ cc = eina_model_new(CREDIT_CARD_TYPE); //creating object of credit card class
+
+ bank_account_data_set(b, "Bill Clark", "8569214756");
+ bank_account_data_set(cc, "John Smith", "3154789");
+
+ credit_card_data_set(cc, "5803 6589 4786 3279 9173", "01/01/2015", 1234);
+
+ data_print(b);
+ data_print(cc);
+
+ eina_model_unref(b);
+ eina_model_unref(cc);
+
+ eina_shutdown();
+
+ return 0;
+}