agentxcpp::Opaque Class Reference

Represents an Opaque obejct as descibed in RFC 2741, section 5.4. More...

#include <Opaque.hpp>

Inheritance diagram for agentxcpp::Opaque:

Collaboration diagram for agentxcpp::Opaque:

List of all members.

Public Member Functions
data_t	serialize () const
	Encode the object as described in RFC 2741, section 5.4 / 5.3.
	Opaque (data_t::const_iterator &pos, const data_t::const_iterator &end, bool big_endian=true)
	Construct the object from input stream.
	Opaque (data_t initial_value)
	Constructor for initializing with data.
virtual void	update ()
	Update the internal state of the object.
virtual data_t	get ()
	Obtain the current value for the object.
Private Attributes
data_t	value
	The string.

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Detailed Description

Represents an Opaque obejct as descibed in RFC 2741, section 5.4.

Definition at line 32 of file Opaque.hpp.

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Constructor & Destructor Documentation

Opaque::Opaque	(	data_t::const_iterator &	pos,
		const data_t::const_iterator &	end,
		bool	big_endian = true
	)

Construct the object from input stream.

This constructor parses the serialized form of the object. It takes an iterator, starts parsing at the position of the iterator and advances the iterator to the position right behind the object.

The constructor expects valid data from the stream; if parsing fails, parse_error is thrown. In this case, the iterator position is undefined.

Parameters:

pos	Iterator pointing to the current stream position. The iterator is advanced while reading the header.
end	Iterator pointing one element past the end of the current stream. This is needed to mark the end of the buffer.
big_endian	Whether the input stream is in big endian format

Definition at line 49 of file Opaque.cpp.

References value.

agentxcpp::Opaque::Opaque

(

data_t

initial_value

)

[inline]

Constructor for initializing with data.

Definition at line 87 of file Opaque.hpp.

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Member Function Documentation

virtual data_t agentxcpp::Opaque::get

(

)

[inline, virtual]

Obtain the current value for the object.

This member function is derived by classes representing SNMP variables and shall return the current value of the object.

The default implementation throws generic_error.

Returns:

The current value of the object.

Exceptions:

generic_error

If obtaining the current value fails. No other exception shall be thrown.

Definition at line 117 of file Opaque.hpp.

data_t Opaque::serialize

(

)

const [virtual]

Encode the object as described in RFC 2741, section 5.4 / 5.3.

Note: We always use big endian.

Implements agentxcpp::variable.

Definition at line 24 of file Opaque.cpp.

References value.

virtual void agentxcpp::Opaque::update

(

)

[inline, virtual]

Update the internal state of the object.

This function calls get() to obtain a new value and writes that value to the 'value' member.

Exceptions:

generic_error

If obtaining the new value failed.

Implements agentxcpp::variable.

Definition at line 99 of file Opaque.hpp.

References value.

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Member Data Documentation

data_t agentxcpp::Opaque::value [private]

The string.

According to RFC 2578, Opaque is used to wrap any ASN.1-type.

Definition at line 40 of file Opaque.hpp.

Referenced by Opaque(), serialize(), and update().

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The documentation for this class was generated from the following files:

• /home/tanjeff/projekte/agentxcpp/src/Opaque.hpp
• /home/tanjeff/projekte/agentxcpp/src/Opaque.cpp