# DbEnv

`

###

    #include <db_cxx.h>

    class DbEnv {
    public:
    	DbEnv(u_int32 flags);
    	~DbEnv();
    	...
    };

# Description

This manual page describes the specific details of the DbEnv class, which is the center of the Berkeley DB environment.

The following flags value may be specified:

DB_CLIENT
  Create a client environment to connect to a server.

  The DB_CLIENT flag indicates to the system that this environment is remote on a server. The use of this flag causes the environment methods to use functions that call a server instead of local functions. Prior to making any environment or database method calls, the application must call the DbEnv::set_server function to establish the connection to the server.

DB_CXX_NO_EXCEPTIONS
  The Berkeley DB C++ API supports two different error behaviors. By default, whenever an error occurs an exception is thrown that encapsulates the error information. This generally allows for cleaner logic for transaction processing, as a try block can surround a single transaction. However, if DB_CXX_NO_EXCEPTIONS is specified, exceptions are not thrown, instead each individual function returns an error code.

### Class

DbEnv

# See Also

DbEnv::close, DbEnv::open, DbEnv::remove, DbEnv::err, DbEnv::strerror, DbEnv::version, DbEnv::set_cachesize, DbEnv::set_errcall, DbEnv::set_errfile, DbEnv::set_error_stream, DbEnv::set_errpfx, DbEnv::set_flags, DbEnv::set_mutexlocks, DbEnv::set_paniccall, and DbEnv::set_verbose.`

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