Return the record number and data from the available record closest
            to the head of the queue, and delete the record.
            
    Namespace: 
   BerkeleyDBAssembly: libdb_dotnet53 (in libdb_dotnet53.dll) Version: 5.3.28.0
 Syntax
Syntax
| C# | 
|---|
| public KeyValuePair<uint, DatabaseEntry> Consume( bool wait, Transaction txn, LockingInfo info ) | 
| Visual Basic (Declaration) | 
|---|
| Public Function Consume ( _ wait As Boolean, _ txn As Transaction, _ info As LockingInfo _ ) As KeyValuePair(Of UInteger, DatabaseEntry) | 
| Visual C++ | 
|---|
| public: KeyValuePair<unsigned int, DatabaseEntry^> Consume( bool wait, Transaction^ txn, LockingInfo^ info ) | 
Parameters
- wait
- Type: System..::.Boolean
 If true and the Queue database is empty, the thread of control will wait until there is data in the queue before returning.
- txn
- Type: BerkeleyDB..::.Transaction
 txn is a Transaction object returned from BeginTransaction()()(); if the operation is part of a Berkeley DB Concurrent Data Store group, txn is a handle returned from BeginCDSGroup()()(); otherwise null.
- info
- Type: BerkeleyDB..::.LockingInfo
 The locking behavior to use.
Return Value
A KeyValuePair<(Of <(TKey, TValue>)>) whose Key parameter is the record number and whose Value parameter is the retrieved data. Exceptions
Exceptions
| Exception | Condition | 
|---|---|
| BerkeleyDB..::.LockNotGrantedException | If lock or transaction timeouts have been specified, a LockNotGrantedException may be thrown. This failure, by itself, does not require the enclosing transaction be aborted. | 





