begin

Function Details

iterator begin(ReadModifyWriteOption rmw=
    ReadModifyWriteOption::no_read_modify_write(), bool readonly=false,
    BulkRetrievalOption bulkretrieval=
        BulkRetrievalOption::no_bulk_retrieval(),
    bool directdb_get=true)
 

Begin a read-write or readonly iterator which sits on the first key/data pair of the database.

Parameters

directdb_get

Same as that of db_vector::begin(ReadModifyWrite, bool, BulkRetrievalOption, bool);

readonly

Same as that of db_vector::begin(ReadModifyWrite, bool, BulkRetrievalOption, bool);

rmw

Same as that of db_vector::begin(ReadModifyWrite, bool, BulkRetrievalOption, bool);

bulkretrieval

Same as that of db_vector::begin(ReadModifyWrite, bool, BulkRetrievalOption, bool);

Return Value

The created iterator.

See Also

db_vector::begin (ReadModifyWriteOption , bool, BulkRetrievalOption , bool)

const_iterator begin(BulkRetrievalOption bulkretrieval=
    BulkRetrievalOption::no_bulk_retrieval(),
    bool directdb_get=true) const
 

Begin a read-only iterator.

Parameters

directdb_get

Same as that of begin(ReadModifyWrite, bool, BulkRetrievalOption, bool);

bulkretrieval

Same as that of begin(ReadModifyWrite, bool, BulkRetrievalOption, bool);

Return Value

The created const iterator.

See Also

db_vector::begin (ReadModifyWrite, bool, BulkRetrievalOption , bool);

Group: Iterator Functions

The parameters in begin functions of this group have identical meaning to thoes in db_vector::begin , refer to those functions for details.

db_vector::begin()

Class

db_map