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some more ideas about duplicates

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Blue 2023-08-17 11:45:11 -03:00
parent f0727aa73d
commit 06e1aca45a
Signed by: blue
GPG key ID: 9B203B252A63EE38
8 changed files with 139 additions and 24 deletions
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21
src/base.h
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@ -48,6 +48,12 @@ class Cache;
typedef MDB_txn* TransactionID; /**<I'm going to use transaction pointers as transaction IDs*/
enum Duplicates { /**<Duplicates mode:*/
uniqueKey, /** - no duplicate keys allowed*/
uniquePair, /** - no duplicate key <b>AND</b> value pairs allowed*/
full /** - any configuration of duplicates goes*/
};
class Base {
friend class iStorage;
public:
@ -69,7 +75,7 @@ public:
void abortTransaction(TransactionID id) const;
template <class K, class V>
LMDBAL::Storage<K, V>* addStorage(const std::string& storageName, bool duplicates = false);
LMDBAL::Storage<K, V>* addStorage(const std::string& storageName, Duplicates duplicates = uniqueKey);
template <class K, class V>
LMDBAL::Cache<K, V>* addCache(const std::string& storageName);
@ -115,6 +121,7 @@ private:
* The LMDBAL::Base must be closed
*
* \param[in] storageName - storage name
* \param[in] duplicates - LMDBAL::Duplicates duplicates mode (uniqueKey by default)
*
* \returns storage pointer. LMDBAL::Base keeps the ownership of the added storage, you don't need to destoroy it
*
@ -125,10 +132,10 @@ private:
* \exception LMDBAL::StorageDuplicate thrown if somebody tries to add storage with repeating name
*/
template <class K, class V>
LMDBAL::Storage<K, V>* LMDBAL::Base::addStorage(const std::string& storageName, bool duplicates) {
if (opened) {
LMDBAL::Storage<K, V>* LMDBAL::Base::addStorage(const std::string& storageName, Duplicates duplicates) {
if (opened)
throw Opened(name, "add storage " + storageName);
}
Storage<K, V>* storage = new Storage<K, V>(this, storageName, duplicates);
std::pair<Storages::const_iterator, bool> pair = storages.insert(std::make_pair(storageName, (iStorage*)storage));
if (!pair.second)
@ -154,10 +161,10 @@ LMDBAL::Storage<K, V>* LMDBAL::Base::addStorage(const std::string& storageName,
*/
template<class K, class V>
LMDBAL::Cache<K, V> * LMDBAL::Base::addCache(const std::string& storageName) {
if (opened) {
if (opened)
throw Opened(name, "add cache " + storageName);
}
Cache<K, V>* cache = new Cache<K, V>(this, storageName, false);
Cache<K, V>* cache = new Cache<K, V>(this, storageName, uniqueKey);
std::pair<Storages::const_iterator, bool> pair = storages.insert(std::make_pair(storageName, (iStorage*)cache));
if (!pair.second)
throw StorageDuplicate(name, storageName);