u_result
u_readerTakeNextInstance(
u_reader r,
u_instanceHandle h,
u_readerAction action,
c_voidp actionArg)
{
u_result result;
switch (u_entity(r)->kind) {
case U_READER:
result = u_dataReaderTakeNextInstance(u_dataReader(r), h, action, actionArg);
break;
case U_DATAVIEW:
result = u_dataViewTakeNextInstance(u_dataView(r), h, action, actionArg);
break;
case U_QUERY:
result = u_queryTakeNextInstance(u_query(r), h, action, actionArg);
break;
default:
result = U_RESULT_ILL_PARAM;
break;
}
return result;
}
void *
u_readerTakeList(
u_reader r,
c_ulong max,
u_readerCopyList copy,
c_voidp copyArg)
{
void *result = NULL;
switch (u_entity(r)->kind) {
case U_READER:
result = u_dataReaderTakeList(u_dataReader(r), max, copy, copyArg);
break;
case U_DATAVIEW:
assert(FALSE);
break;
case U_QUERY:
result = u_queryTakeList(u_query(r), max, copy, copyArg);
break;
default:
result = NULL;
break;
}
return result;
}
/* ReturnCode_t
* delete_contained_entities();
*/
gapi_returnCode_t
gapi_dataReaderView_delete_contained_entities (
gapi_dataReaderView _this)
{
gapi_returnCode_t result = GAPI_RETCODE_OK;
_DataReaderView datareaderview;
gapi_context context;
_Condition condition = NULL;
c_iter entities;
u_entity e;
u_result ur;
GAPI_CONTEXT_SET(context, _this, GAPI_METHOD_DELETE_CONTAINED_ENTITIES);
if ( _this != NULL ) {
datareaderview = gapi_dataReaderViewClaim(_this, &result);
if ( datareaderview != NULL ) {
if (!gapi_loanRegistry_is_empty(datareaderview->loanRegistry)) {
result = GAPI_RETCODE_PRECONDITION_NOT_MET;
} else {
entities = u_readerLookupQueries(U_READER_GET(datareaderview));
e = c_iterTakeFirst(entities);
while (e) {
condition = u_entityGetUserData(e);
if (condition) {
_ObjectReadClaimNotBusy(_Object(condition));
_ConditionFree(condition);
} else {
if (e == u_entity(datareaderview->uQuery)) {
datareaderview->uQuery = NULL;
ur = u_queryFree(u_query(e));
if (ur == U_RESULT_OK) {
result = GAPI_RETCODE_OK;
} else {
result = GAPI_RETCODE_BAD_PARAMETER;
}
} else {
assert(condition);
result = GAPI_RETCODE_BAD_PARAMETER;
}
}
e = c_iterTakeFirst(entities);
}
c_iterFree(entities);
}
_EntityRelease(datareaderview);
} else {
result = GAPI_RETCODE_ALREADY_DELETED;
}
} else {
result = GAPI_RETCODE_BAD_PARAMETER;
}
return result;
}
u_result
u_readerRead(
u_reader r,
u_readerAction action,
c_voidp actionArg)
{
u_result result;
switch (u_entity(r)->kind) {
case U_READER:
result = u_dataReaderRead(u_dataReader(r), action, actionArg);
break;
case U_DATAVIEW:
result = u_dataViewRead(u_dataView(r), action, actionArg);
break;
case U_QUERY:
result = u_queryRead(u_query(r), action, actionArg);
break;
default:
result = U_RESULT_ILL_PARAM;
break;
}
return result;
}
