isc::dhcp::WritableHostDataSource Class Reference

Interface for retrieving writable host reservations. More...

#include <writable_host_data_source.h>

Inheritance diagram for isc::dhcp::WritableHostDataSource:

Public Member Functions
virtual	~WritableHostDataSource ()
	Default destructor implementation.
virtual HostPtr	get4 (const SubnetID &subnet_id, const Host::IdentifierType &identifier_type, const uint8_t *identifier_begin, const size_t identifier_len)=0
	Returns a host connected to the IPv4 subnet.
virtual HostPtr	get6 (const asiolink::IOAddress &prefix, const uint8_t prefix_len)=0
	Returns a host using the specified IPv6 prefix.
virtual HostPtr	get6 (const SubnetID &subnet_id, const asiolink::IOAddress &address)=0
	Returns a host connected to the IPv6 subnet and having a reservation for a specified IPv6 address or prefix.
virtual HostPtr	get6 (const SubnetID &subnet_id, const Host::IdentifierType &identifier_type, const uint8_t *identifier_begin, const size_t identifier_len)=0
	Returns a host connected to the IPv6 subnet.
virtual HostCollection	getAll (const Host::IdentifierType &identifier_type, const uint8_t *identifier_begin, const size_t identifier_len)=0
	Non-const version of the getAll const method.
virtual HostCollection	getAll4 (const asiolink::IOAddress &address)=0
	Returns a collection of hosts using the specified IPv4 address.
virtual HostCollection	getAll4 (const SubnetID &subnet_id)=0
	Returns a collection of hosts in the specified DHCPv4 subnet.
virtual HostCollection	getAll6 (const SubnetID &subnet_id)=0
	Returns a collection of hosts in the specified DHCPv6 subnet.
virtual HostCollection	getAllbyHostname (const std::string &hostname)=0
	Return all hosts with a hostname.
virtual HostCollection	getAllbyHostname4 (const std::string &hostname, const SubnetID &subnet_id)=0
	Return all hosts with a hostname in a DHCPv4 subnet.
virtual HostCollection	getAllbyHostname6 (const std::string &hostname, const SubnetID &subnet_id)=0
	Return all hosts with a hostname in a DHCPv6 subnet.
virtual HostCollection	getPage4 (const SubnetID &subnet_id, size_t &source_index, uint64_t lower_host_id, const HostPageSize &page_size)=0
	Returns range of hosts in a DHCPv4 subnet.
virtual HostCollection	getPage4 (size_t &source_index, uint64_t lower_host_id, const HostPageSize &page_size)=0
	Returns range of hosts.
virtual HostCollection	getPage6 (const SubnetID &subnet_id, size_t &source_index, uint64_t lower_host_id, const HostPageSize &page_size)=0
	Returns range of hosts in a DHCPv6 subnet.
virtual HostCollection	getPage6 (size_t &source_index, uint64_t lower_host_id, const HostPageSize &page_size)=0
	Returns range of hosts.

Detailed Description

Interface for retrieving writable host reservations.

This interface specifies the methods which return pointers to the Host objects, which can be modified. Deriving from this interface is needed if the class implementation must return the pointers to the objects which may be modified by the caller. Such classes usually also derive from the BaseHostDataSource to implement methods which return the const objects.

Definition at line 21 of file writable_host_data_source.h.

Constructor & Destructor Documentation

~WritableHostDataSource()

virtual isc::dhcp::WritableHostDataSource::~WritableHostDataSource ( )

inlinevirtual

Default destructor implementation.

Definition at line 25 of file writable_host_data_source.h.

Member Function Documentation

get4()

virtual HostPtr isc::dhcp::WritableHostDataSource::get4 ( const SubnetID & subnet_id, const Host::IdentifierType & identifier_type, const uint8_t * identifier_begin, const size_t identifier_len )

pure virtual

Returns a host connected to the IPv4 subnet.

Parameters

subnet_id	Subnet identifier.
identifier_type	Identifier type.
identifier_begin	Pointer to a beginning of a buffer containing an identifier.
identifier_len	Identifier length.

Returns

Non-const Host object for which reservation has been made using the specified identifier.

Implemented in isc::dhcp::CfgHosts.

get6() [1/3]

virtual HostPtr isc::dhcp::WritableHostDataSource::get6 ( const asiolink::IOAddress & prefix, const uint8_t prefix_len )

pure virtual

Returns a host using the specified IPv6 prefix.

Parameters

prefix	IPv6 prefix for which the Host object is searched.
prefix_len	IPv6 prefix length.

Returns

Non-const Host object using a specified IPv6 prefix.

Implemented in isc::dhcp::CfgHosts.

get6() [2/3]

virtual HostPtr isc::dhcp::WritableHostDataSource::get6 ( const SubnetID & subnet_id, const asiolink::IOAddress & address )

pure virtual

Returns a host connected to the IPv6 subnet and having a reservation for a specified IPv6 address or prefix.

Parameters

subnet_id	Subnet identifier.
address	reserved IPv6 address/prefix.

Returns

Host object using a specified IPv6 address/prefix.

Implemented in isc::dhcp::CfgHosts.

get6() [3/3]

virtual HostPtr isc::dhcp::WritableHostDataSource::get6 ( const SubnetID & subnet_id, const Host::IdentifierType & identifier_type, const uint8_t * identifier_begin, const size_t identifier_len )

pure virtual

Returns a host connected to the IPv6 subnet.

Parameters

subnet_id	Subnet identifier.
identifier_type	Identifier type.
identifier_begin	Pointer to a beginning of a buffer containing an identifier.
identifier_len	Identifier length.

Returns

Non-const Host object for which reservation has been made using the specified identifier.

Implemented in isc::dhcp::CfgHosts.

getAll()

virtual HostCollection isc::dhcp::WritableHostDataSource::getAll ( const Host::IdentifierType & identifier_type, const uint8_t * identifier_begin, const size_t identifier_len )

pure virtual

Non-const version of the getAll const method.

This method returns all Host objects which represent reservations for a specified identifier. This method may return multiple hosts because a particular client may have reservations in multiple subnets.

Parameters

identifier_type	Identifier type.
identifier_begin	Pointer to a beginning of a buffer containing an identifier.
identifier_len	Identifier length.

Returns

Collection of non-const Host objects.

Implemented in isc::dhcp::CfgHosts.

getAll4() [1/2]

virtual HostCollection isc::dhcp::WritableHostDataSource::getAll4 ( const asiolink::IOAddress & address )

pure virtual

Returns a collection of hosts using the specified IPv4 address.

This method may return multiple Host objects if they are connected to different subnets.

Parameters

address

IPv4 address for which the Host object is searched.

Returns

Collection of Host objects.

Implemented in isc::dhcp::CfgHosts.

getAll4() [2/2]

virtual HostCollection isc::dhcp::WritableHostDataSource::getAll4 ( const SubnetID & subnet_id )

pure virtual

Returns a collection of hosts in the specified DHCPv4 subnet.

Parameters

subnet_id

Subnet identifier.

Returns

Collection of non-const Host objects.

Implemented in isc::dhcp::CfgHosts.

getAll6()

virtual HostCollection isc::dhcp::WritableHostDataSource::getAll6 ( const SubnetID & subnet_id )

pure virtual

Returns a collection of hosts in the specified DHCPv6 subnet.

Parameters

subnet_id

Subnet identifier.

Returns

Collection of non-const Host objects.

Implemented in isc::dhcp::CfgHosts.

getAllbyHostname()

virtual HostCollection isc::dhcp::WritableHostDataSource::getAllbyHostname ( const std::string & hostname )

pure virtual

Return all hosts with a hostname.

This method returns all Host objects which represent reservations using a specified hostname.

Parameters

hostname

The lower case hostname.

Returns

Collection of Host objects.

Implemented in isc::dhcp::CfgHosts.

getAllbyHostname4()

virtual HostCollection isc::dhcp::WritableHostDataSource::getAllbyHostname4 ( const std::string & hostname, const SubnetID & subnet_id )

pure virtual

Return all hosts with a hostname in a DHCPv4 subnet.

This method returns all Host objects which represent reservations using a specified hostname in a specified subnet.

Parameters

hostname	The lower case hostname.
subnet_id	Subnet identifier.

Returns

Collection of Host objects.

Implemented in isc::dhcp::CfgHosts.

getAllbyHostname6()

virtual HostCollection isc::dhcp::WritableHostDataSource::getAllbyHostname6 ( const std::string & hostname, const SubnetID & subnet_id )

pure virtual

Return all hosts with a hostname in a DHCPv6 subnet.

This method returns all Host objects which represent reservations using a specified hostname in a specified subnet.

Parameters

hostname	The lower case hostname.
subnet_id	Subnet identifier.

Returns

Collection of Host objects.

Implemented in isc::dhcp::CfgHosts.

getPage4() [1/2]

virtual HostCollection isc::dhcp::WritableHostDataSource::getPage4 ( const SubnetID & subnet_id, size_t & source_index, uint64_t lower_host_id, const HostPageSize & page_size )

pure virtual

Returns range of hosts in a DHCPv4 subnet.

This method implements paged browsing of host databases. The parameters specify a page size, an index in sources and the starting host id of the range. If not zero this host id is excluded from the returned range. When a source is exhausted the index is updated. There is no guarantee about the order of returned host reservations, only the sources and reservations from the same source are ordered.

Parameters

subnet_id	Subnet identifier.
source_index	Index of the source.
lower_host_id	Host identifier used as lower bound for the returned range.
page_size	maximum size of the page returned.

Returns

Collection of non-const Host objects.

Implemented in isc::dhcp::CfgHosts.

getPage4() [2/2]

virtual HostCollection isc::dhcp::WritableHostDataSource::getPage4 ( size_t & source_index, uint64_t lower_host_id, const HostPageSize & page_size )

pure virtual

Returns range of hosts.

This method implements paged browsing of host databases. The parameters specify a page size, an index in sources and the starting host id of the range. If not zero this host id is excluded from the returned range. When a source is exhausted the index is updated. There is no guarantee about the order of returned host reservations, only the sources and reservations from the same source are ordered.

Parameters

source_index	Index of the source.
lower_host_id	Host identifier used as lower bound for the returned range.
page_size	maximum size of the page returned.

Returns

Collection of non-const Host objects.

Implemented in isc::dhcp::CfgHosts.

getPage6() [1/2]

virtual HostCollection isc::dhcp::WritableHostDataSource::getPage6 ( const SubnetID & subnet_id, size_t & source_index, uint64_t lower_host_id, const HostPageSize & page_size )

pure virtual

Returns range of hosts in a DHCPv6 subnet.

This method implements paged browsing of host databases. The parameters specify a page size, an index in sources and the starting host id of the range. If not zero this host id is excluded from the returned range. When a source is exhausted the index is updated. There is no guarantee about the order of returned host reservations, only the sources and reservations from the same source are ordered.

Parameters

subnet_id	Subnet identifier.
source_index	Index of the source.
lower_host_id	Host identifier used as lower bound for the returned range.
page_size	maximum size of the page returned.

Returns

Collection of non-const Host objects.

Implemented in isc::dhcp::CfgHosts.

getPage6() [2/2]

virtual HostCollection isc::dhcp::WritableHostDataSource::getPage6 ( size_t & source_index, uint64_t lower_host_id, const HostPageSize & page_size )

pure virtual

Returns range of hosts.

This method implements paged browsing of host databases. The parameters specify a page size, an index in sources and the starting host id of the range. If not zero this host id is excluded from the returned range. When a source is exhausted the index is updated. There is no guarantee about the order of returned host reservations, only the sources and reservations from the same source are ordered.

Parameters

source_index	Index of the source.
lower_host_id	Host identifier used as lower bound for the returned range.
page_size	maximum size of the page returned.

Returns

Collection of non-const Host objects.

Implemented in isc::dhcp::CfgHosts.

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

• writable_host_data_source.h