/// <summary>
/// Return an approximate count of key-value mappings in this store.
/// The count is not guaranteed to be exact in order to accommodate stores
/// where an exact count is expensive to calculate.
/// </summary>
/// <returns>an approximate count of key-value mappings in the store.</returns>
public long ApproximateNumEntries()
{
CheckStateStoreOpen();
long num = 0;
try
{
num = DbAdapter.ApproximateNumEntries();
}
catch (RocksDbSharp.RocksDbException e)
{
throw new ProcessorStateException("Error while getting value for key from store {Name}", e);
}
return(num > 0 ? num : 0);
}