static gapi_boolean
initViewQuery (
_DataReaderView dataReaderView)
{
gapi_boolean result = FALSE;
gapi_expression expr;
u_dataView uReaderView;
dataReaderView->reader_mask.sampleStateMask = (c_long)0;
dataReaderView->reader_mask.viewStateMask = (c_long)0;
dataReaderView->reader_mask.instanceStateMask = (c_long)0;
uReaderView = u_dataView(U_DATAREADERVIEW_GET(dataReaderView));
expr = gapi_createReadExpression(u_entity(uReaderView),
&dataReaderView->reader_mask);
if ( expr != NULL ) {
dataReaderView->uQuery = gapi_expressionCreateQuery(expr,
u_reader(uReaderView),
NULL,
NULL);
gapi_expressionFree(expr);
if ( dataReaderView->uQuery ) {
result = TRUE;
}
}
return result;
}
_QueryCondition
_QueryConditionNew(
const gapi_sampleStateMask sample_states,
const gapi_viewStateMask view_states,
const gapi_instanceStateMask instance_states,
const gapi_char *query_expression,
const gapi_stringSeq *query_parameters,
_DataReader datareader,
_DataReaderView datareaderview)
{
_QueryCondition _this;
u_reader uReader;
u_dataView uDataView;
/* Allocate QueryCondition */
_this = _QueryConditionAlloc();
if (_this != NULL) {
/* Initialise QueryCondition */
if (datareaderview != NULL) {
_ConditionInit(_Condition(_this),
_Entity(datareaderview),
_ReadConditionGetTriggerValue);
} else {
_ConditionInit(_Condition(_this),
_Entity(datareader),
_ReadConditionGetTriggerValue);
}
_this->_parent.dataReader = datareader;
_this->_parent.dataReaderView = datareaderview;
_this->_parent.readerMask.sampleStateMask = sample_states;
_this->_parent.readerMask.viewStateMask = view_states;
_this->_parent.readerMask.instanceStateMask = instance_states;
_this->query_expression = gapi_string_dup(query_expression);
_this->query_parameters = gapi_stringSeq_dup(query_parameters);
uReader = u_reader(_DataReaderUreader(datareader));
_this->expression =
gapi_createQueryExpression(u_entity(uReader),
_this->query_expression);
if (_this->expression) {
if (datareaderview) {
uDataView = u_dataView(_DataReaderViewUreaderView(datareaderview));
_this->_parent.uQuery = gapi_expressionCreateQuery(
_this->expression,
u_reader(uDataView),
NULL,
_this->query_parameters);
} else {
uReader = u_reader(_DataReaderUreader(datareader));
_this->_parent.uQuery = gapi_expressionCreateQuery(
_this->expression,
uReader,
NULL,
_this->query_parameters);
}
if (_this->_parent.uQuery) {
/* Success: fill UserData and mark as valid */
u_entitySetUserData(u_entity(_this->_parent.uQuery),_this);
_Condition(_this)->uEntity = u_entity(_this->_parent.uQuery);
} else {
gapi_free(_this->query_expression);
gapi_free(_this->query_parameters);
gapi_expressionFree(_this->expression);
_ConditionDispose(_Condition(_this));
_this = NULL;
}
} else {
gapi_free(_this->query_expression);
gapi_free(_this->query_parameters);
_ConditionDispose(_Condition(_this));
_this = NULL;
}
}
return _this;
}
