qsql_firebird_result.cpp File Reference

(508f587717ef550368a8ce7120c1ba8caeabce96)

#include "qsql_firebird_result_p.h"
#include "qsql_firebird_array_p.h"
#include "qsql_firebird_helpers_p.h"
#include <QtCore/qvarlengtharray.h>
#include <QtSql/qsqlfield.h>
#include <algorithm>
#include <cstring>
#include <limits>

Include dependency graph for qsql_firebird_result.cpp:

Go to the source code of this file.

Functions
static QList< ColumnInfo >	buildColumns (IMessageMetadata *meta, ThrowStatusWrapper &st)
static QByteArray	readBlob (IAttachment *att, ITransaction *tra, IStatus *st, const ISC_QUAD &blobId)
static TxnOp	classifyTxnControl (const QString &query)

Variables
static constexpr int	kMaxRowSentinel = 0x7FFFFFFE

Function Documentation

buildColumns()

QList< ColumnInfo > buildColumns ( IMessageMetadata * meta, ThrowStatusWrapper & st )

static

Definition at line 27 of file qsql_firebird_result.cpp.

References ColumnInfo::fbSubType, ColumnInfo::fbType, ColumnInfo::length, ColumnInfo::nullOffset, ColumnInfo::offset, and ColumnInfo::scale.

classifyTxnControl()

TxnOp classifyTxnControl ( const QString & query )

static

Classify a bare transaction-control statement (COMMIT/ROLLBACK [WORK]). These appear in SQL scripts but cannot be executed as DSQL against the driver's managed transaction (Firebird rejects it with "invalid transaction handle"); they are applied via the ITransaction API instead. COMMIT/ROLLBACK RETAIN are not treated specially.

Definition at line 246 of file qsql_firebird_result.cpp.

readBlob()

QByteArray readBlob ( IAttachment * att, ITransaction * tra, IStatus * st, const ISC_QUAD & blobId )

static

Read a BLOB into QByteArray. Uses ThrowStatusWrapper so a read error throws FbException (caught by QFirebirdResult::data) instead of being swallowed and returning a silently truncated buffer.

Definition at line 57 of file qsql_firebird_result.cpp.

Variable Documentation

kMaxRowSentinel

constexpr int kMaxRowSentinel = 0x7FFFFFFE

staticconstexpr

Largest non-negative row-position sentinel. Two uses, same value:

• passed to ensureCachedRow() to force the cache to pull every remaining row;
• the at() position set after fetchLast() on a server-side scrollable cursor, which exposes no row count so the true last index is unknown (QSqlQuery only needs a valid non-negative position; the row data comes from outBuffer).

Definition at line 937 of file qsql_firebird_result.cpp.

Referenced by QFirebirdResult::fetchLast().