VariableArrayCursor::VariableArrayCursor(uint8_t *addr)
: BaseObject(addr), curObject_(*this), elemCursor_(UNDEF_CURSOR_POS) {
rootOId_ = getBaseOId();
elemNum_ = ValueProcessor::decodeVarSize(curObject_.getBaseAddr());
curObject_.moveCursor(
ValueProcessor::getEncodedVarSize(elemNum_));
}
/*!
@brief Free Objects related to VariableArray
*/
void VariableArrayCursor::finalize() {
reset();
if (getBaseOId() != UNDEF_OID) {
while (nextElement(true)) {
;
}
}
}
VariableArrayCursor::VariableArrayCursor(TransactionContext &txn,
ObjectManager &objectManager, OId oId, AccessMode accessMode)
: BaseObject(txn.getPartitionId(), objectManager),
curObject_(*this),
elemCursor_(UNDEF_CURSOR_POS),
accessMode_(accessMode) {
BaseObject::load(oId, accessMode_);
rootOId_ = getBaseOId();
elemNum_ = ValueProcessor::decodeVarSize(curObject_.getBaseAddr());
curObject_.moveCursor(
ValueProcessor::getEncodedVarSize(elemNum_));
}
/*!
@brief Allocate HashMap Object
*/
int32_t HashMap::initialize(TransactionContext& txn, ColumnType columnType,
ColumnId columnId, const AllocateStrategy& metaAllocateStrategy,
bool isUnique) {
hashMapImage_ = BaseObject::allocate<HashMapImage>(sizeof(HashMapImage),
metaAllocateStrategy, getBaseOId(), OBJECT_TYPE_HASH_MAP);
if (columnType == COLUMN_TYPE_STRING) {
hashMapImage_->thresholdSplit_ = THRESHOLD_SPLIT_STRING;
}
else {
hashMapImage_->thresholdSplit_ = ThresholdSplitNonString;
}
hashMapImage_->size_ = 0;
hashMapImage_->split_ = 0;
hashMapImage_->front_ = INITIAL_HASH_ARRAY_SIZE;
hashMapImage_->rear_ = hashMapImage_->front_;
hashMapImage_->toSplit_ = false;
hashMapImage_->toMerge_ = false;
hashMapImage_->keyType_ = columnType;
hashMapImage_->columnId_ = columnId;
hashMapImage_->isUnique_ = isUnique ? 1 : 0;
hashMapImage_->padding1_ = 0;
hashMapImage_->padding2_ = 0;
hashMapImage_->padding3_ = 0;
hashMapImage_->padding4_ = 0;
hashMapImage_->padding5_ = 0;
hashMapImage_->padding6_ = 0;
hashMapImage_->padding7_ = 0;
hashArray_.initialize(txn, &(hashMapImage_->hashArrayImage_), true);
while (hashArray_.size() < hashMapImage_->rear_) {
hashArray_.twiceHashArray(txn);
}
return GS_SUCCESS;
}
/*!
@brief Clone
*/
OId VariableArrayCursor::clone(TransactionContext &txn,
const AllocateStrategy &allocateStrategy, OId neighborOId) {
if (UNDEF_OID == getBaseOId()) {
return UNDEF_OID;
}
OId currentNeighborOId = neighborOId;
OId linkOId = UNDEF_OID;
uint32_t srcDataLength = getArrayLength();
if (srcDataLength == 0) {
uint8_t *srcObj = getBaseAddr();
Size_t srcObjSize = getObjectManager()->getSize(srcObj);
BaseObject destObject(txn.getPartitionId(), *getObjectManager());
OId destOId = UNDEF_OID;
if (currentNeighborOId != UNDEF_OID) {
destObject.allocateNeighbor<uint8_t>(srcObjSize, allocateStrategy,
destOId, currentNeighborOId, OBJECT_TYPE_VARIANT);
}
else {
destObject.allocate<uint8_t>(
srcObjSize, allocateStrategy, destOId, OBJECT_TYPE_VARIANT);
}
memcpy(destObject.getBaseAddr(), srcObj, srcObjSize);
linkOId = destOId;
}
else {
OId srcOId = UNDEF_OID;
OId destOId = UNDEF_OID;
OId prevOId = UNDEF_OID;
uint8_t *srcObj = NULL;
BaseObject destObject(txn.getPartitionId(), *getObjectManager());
uint8_t *srcElem;
uint32_t srcElemSize;
uint32_t srcCount;
uint8_t *lastElem = NULL;
uint32_t lastElemSize = 0;
while (nextElement()) {
srcObj = data();
srcOId = getElementOId();
srcElem = getElement(srcElemSize, srcCount);
if (srcOId != prevOId) {
Size_t srcObjSize = getObjectManager()->getSize(srcObj);
if (currentNeighborOId != UNDEF_OID) {
destObject.allocateNeighbor<uint8_t>(srcObjSize,
allocateStrategy, destOId, currentNeighborOId,
OBJECT_TYPE_VARIANT);
}
else {
destObject.allocate<uint8_t>(srcObjSize, allocateStrategy,
destOId, OBJECT_TYPE_VARIANT);
}
currentNeighborOId =
destOId;
memcpy(destObject.getBaseAddr(), srcObj, srcObjSize);
if (UNDEF_OID == linkOId) {
linkOId = destOId;
}
else {
assert(lastElem > 0);
uint8_t *linkOIdAddr =
lastElem + lastElemSize +
ValueProcessor::getEncodedVarSize(lastElemSize);
uint64_t encodedOId =
ValueProcessor::encodeVarSizeOId(destOId);
memcpy(linkOIdAddr, &encodedOId, sizeof(uint64_t));
}
prevOId = srcOId;
}
lastElem = destObject.getBaseAddr() + (srcElem - srcObj);
lastElemSize = srcElemSize;
}
}
return linkOId;
}
