kits/storage/Query.cpp

71 	// delete the predicate stack and the predicate
85 /*!	\brief Pushes an attribute name onto the BQuery's predicate stack.
93 		  Calling PushXYZ() after a Fetch() does change the predicate on R5,
95 		  predicate can not even be used for the next query, since in order
97 		  to be called and Clear() also deletes the predicate.
106 /*!	\brief Pushes an operator onto the BQuery's predicate stack.
114 		  Calling PushXYZ() after a Fetch() does change the predicate on R5,
116 		  predicate can not even be used for the next query, since in order
118 		  to be called and Clear() also deletes the predicate.
149 /*!	\brief Pushes a uint32 value onto the BQuery's predicate stack.
157 		  Calling PushXYZ() after a Fetch() does change the predicate on R5,
159 		  predicate can not even be used for the next query, since in order
161 		  to be called and Clear() also deletes the predicate.
170 /*!	\brief Pushes an int32 value onto the BQuery's predicate stack.
178 		  Calling PushXYZ() after a Fetch() does change the predicate on R5,
180 		  predicate can not even be used for the next query, since in order
182 		  to be called and Clear() also deletes the predicate.
191 /*!	\brief Pushes a uint64 value onto the BQuery's predicate stack.
199 		  Calling PushXYZ() after a Fetch() does change the predicate on R5,
201 		  predicate can not even be used for the next query, since in order
203 		  to be called and Clear() also deletes the predicate.
212 /*!	\brief Pushes an int64 value onto the BQuery's predicate stack.
220 		  Calling PushXYZ() after a Fetch() does change the predicate on R5,
222 		  predicate can not even be used for the next query, since in order
224 		  to be called and Clear() also deletes the predicate.
233 /*!	\brief Pushes a float value onto the BQuery's predicate stack.
241 		  Calling PushXYZ() after a Fetch() does change the predicate on R5,
243 		  predicate can not even be used for the next query, since in order
245 		  to be called and Clear() also deletes the predicate.
254 /*!	\brief Pushes a double value onto the BQuery's predicate stack.
262 		  Calling PushXYZ() after a Fetch() does change the predicate on R5,
264 		  predicate can not even be used for the next query, since in order
266 		  to be called and Clear() also deletes the predicate.
275 /*!	\brief Pushes a string value onto the BQuery's predicate stack.
285 		  Calling PushXYZ() after a Fetch() does change the predicate on R5,
287 		  predicate can not even be used for the next query, since in order
289 		  to be called and Clear() also deletes the predicate.
298 /*!	\brief Pushes a date value onto the BQuery's predicate stack.
306 	\note Calling PushXYZ() after a Fetch() does change the predicate on R5,
308 		  predicate can not even be used for the next query, since in order
310 		  to be called and Clear() also deletes the predicate.
348 /*!	\brief Sets the BQuery's predicate.
349 	A predicate can be set either using this method or constructing one on
350 	the predicate stack. The two methods can not be mixed. The letter one
354 	\param predicate the predicate string
358 	- \c B_NO_MEMORY: Insufficient memory to store the predicate.
409 /*!	\brief Returns the BQuery's predicate.
410 	Regardless of whether the predicate has been constructed using the
411 	predicate stack or set via SetPredicate(), this method returns a
413 	\param buffer a pointer to a buffer into which the predicate shall be
418 	- \c B_NO_INIT: The predicate isn't set.
420 	\note This method causes the predicate stack to be evaluated and cleared.
439 /*!	\brief Returns the BQuery's predicate.
440 	Regardless of whether the predicate has been constructed using the
441 	predicate stack or set via SetPredicate(), this method returns a
443 	\param predicate a pointer to a BString which shall be set to the
444 		   predicate string
447 	- \c B_NO_INIT: The predicate isn't set.
448 	- \c B_BAD_VALUE: \c NULL \a predicate.
449 	\note This method causes the predicate stack to be evaluated and cleared.
453 BQuery::GetPredicate(BString* predicate)
455 	status_t error = (predicate ? B_OK : B_BAD_VALUE);
461 		predicate->SetTo(fPredicate);
466 /*!	\brief Returns the length of the BQuery's predicate string.
467 	Regardless of whether the predicate has been constructed using the
468 	predicate stack or set via SetPredicate(), this method returns the length
471 	- the length of the predicate string (counting the terminating null) or
473 	\note This method causes the predicate stack to be evaluated and cleared.
500 /*!	\brief Tells the BQuery to start fetching entries satisfying the predicate.
508 	- \c B_NO_INIT: The predicate or the volume aren't set.
509 	- \c B_BAD_VALUE: The predicate is invalid.
552 	- \c B_BAD_VALUE: The queries predicate includes unindexed attributes.
578 	- \c B_BAD_VALUE: The queries predicate includes unindexed attributes.
621 	- \c B_BAD_VALUE: The queries predicate includes unindexed attributes.
673 /*!	\brief Pushs a node onto the predicate stack.
686 	  predicate stack or push the node.
709 /*!	\brief Helper method to set the BQuery's predicate.
711 	\param predicate the predicate string
714 	- \c B_NO_MEMORY: Insufficient memory to store the predicate.
720 	// unset the old predicate
735 /*!	Evaluates the query's predicate stack.
757 		BString predicate;
759 			error = node->GetString(predicate);
761 			error = _SetPredicate(predicate.String());