A memory ID. More...

#include <RobotAPI/libraries/armem/core/MemoryID.h>

Public Member Functions
MemoryID	cleanID () const

void	clearInstanceIndex ()

void	clearTimestamp ()

std::vector< std::string >	getAllItems (bool escapeDelimiters=false) const
	Get all levels as strings. More...

MemoryID	getCoreSegmentID () const

MemoryID	getEntityID () const

MemoryID	getEntityInstanceID () const

MemoryID	getEntitySnapshotID () const

std::vector< std::string >	getItems (bool escapeDelimiters=false) const
	Get the levels from root to first not defined level (excluding). More...

std::string	getLeafItem () const
	Get the lowest defined level (or empty string if there is none). More...

MemoryID	getMemoryID () const

MemoryID	getProviderSegmentID () const

bool	hasCoreSegmentName () const

bool	hasEntityName () const

bool	hasGap () const
	Indicate whether this ID has a gap such as in 'Memory//MyProvider' (no core segment name). More...

bool	hasInstanceIndex () const

bool	hasMemoryName () const

bool	hasProviderSegmentName () const

bool	hasTimestamp () const

std::string	instanceIndexStr () const
	Get the instance index as string. More...

bool	isWellDefined () const
	Indicate whether this ID is well-defined. More...

	MemoryID ()
	Construct a default (empty) memory ID. More...

	MemoryID (const std::string &memoryName, const std::string &coreSegmentName, const std::string &providerSegmentName="", const std::string &entityName="", Time timestamp=Time::Invalid(), int instanceIndex=-1)

	MemoryID (const std::string &string)
	(Re-)Construct a memory ID from a string representation as returned by `str()`. More...

bool	operator!= (const MemoryID &other) const

bool	operator< (const MemoryID &rhs) const

bool	operator<= (const MemoryID &rhs) const

bool	operator== (const MemoryID &other) const

bool	operator> (const MemoryID &rhs) const

bool	operator>= (const MemoryID &rhs) const

MemoryID	removeLeafItem () const

void	setCoreSegmentID (const MemoryID &id)

void	setEntityID (const MemoryID &id)

void	setEntityInstanceID (const MemoryID &id)

void	setEntitySnapshotID (const MemoryID &id)

void	setMemoryID (const MemoryID &id)

void	setProviderSegmentID (const MemoryID &id)

std::string	str (bool escapeDelimiters=true) const
	Get a string representation of this memory ID. More...

std::string	timestampStr () const
	Get the timestamp as string. More...

MemoryID	withCoreSegmentName (const std::string &name) const

MemoryID	withEntityName (const std::string &name) const

MemoryID	withInstanceIndex (int index) const

MemoryID	withMemoryName (const std::string &name) const

MemoryID	withProviderSegmentName (const std::string &name) const

MemoryID	withTimestamp (Time time) const

Static Public Member Functions
static MemoryID	fromItems (const std::vector< std::string > &items)
	Constructor memory ID from items as returned by getItems(). More...

static MemoryID	fromString (const std::string &string)
	Alias for constructor from string. More...

static int	instanceIndexFromStr (const std::string &index)
	Reconstruct an instance index from a string as returned by `instanceIndexStr()`. More...

static Time	timestampFromStr (const std::string &timestamp)
	Reconstruct a timestamp from a string as returned by `timestampStr()`. More...

Public Attributes
std::string	coreSegmentName = ""

std::string	entityName = ""

int	instanceIndex = -1

std::string	memoryName = ""

std::string	providerSegmentName = ""

Time	timestamp = Time::Invalid()

Friends
std::ostream &	operator<< (std::ostream &os, const MemoryID id)

Detailed Description

A memory ID.

A memory ID is an index into the hierarchical memory structure. It specifies the keys for the different levels, starting from the memory name and ending at the instance index.

A memory ID need not be complete, e.g. it may specify only the memory and core segment names (thus representing a core segment ID). A memory ID that fully identifies a level starting from the memory is called well-defined.

See also: isWellDefined()

Memory IDs can be encoded in strings using a delimiter:

Structure: "MemoryName/CoreSegmentName/ProviderSegmentName/EntityName/Timestamp/InstanceIndex"
Example: "Vision/RGBImages/Primesense/image/1245321323/0"
See also
str()
If an ID does not specify the lower levels, these parts can be omitted. Thus, an entity ID could look like:
Structure: "MemoryName/CoreSegmentName/ProviderSegmentName/EntityName"
Example: "Vision/RGBImages/Primesense/image"

If a name contains a "/", it will be escaped:

Example: "Vision/RGBImages/Primesense/my\/entity\/with\/slashes"

Memory IDs may be not well-defined. This can occur e.g. when preparing an entity instance ID which is still pending the timestamp. It could look like (note the missing timestamp):

Example: "Vision/RGBImages/Primesense/image//0"

These IDs are still valid and can be handled (encoded as string etc.). However, some operations may not be well-defined for non-well-defined IDs (such as contains()).

Definition at line 47 of file MemoryID.h.

Constructor & Destructor Documentation

◆ MemoryID() [1/3]

MemoryID ( )

Construct a default (empty) memory ID.

Definition at line 20 of file MemoryID.cpp.

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◆ MemoryID() [2/3]

MemoryID ( const std::string & string )

explicit

(Re-)Construct a memory ID from a string representation as returned by str().

Definition at line 24 of file MemoryID.cpp.

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◆ MemoryID() [3/3]

MemoryID	(	const std::string &	memoryName,
		const std::string &	coreSegmentName,
		const std::string &	providerSegmentName = `""`,
		const std::string &	entityName = `""`,
		Time	timestamp = `Time::Invalid()`,
		int	instanceIndex = `-1`
	)

Definition at line 86 of file MemoryID.cpp.

Member Function Documentation

◆ cleanID()

MemoryID cleanID ( ) const

Definition at line 133 of file MemoryID.cpp.

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◆ clearInstanceIndex()

void clearInstanceIndex ( )

inline

Definition at line 145 of file MemoryID.h.

◆ clearTimestamp()

void clearTimestamp ( )

inline

Definition at line 133 of file MemoryID.h.

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◆ fromItems()

MemoryID fromItems ( const std::vector< std::string > & items )

static

Constructor memory ID from items as returned by getItems().

Definition at line 194 of file MemoryID.cpp.

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◆ fromString()

MemoryID fromString ( const std::string & string )

static

Alias for constructor from string.

Definition at line 188 of file MemoryID.cpp.

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◆ getAllItems()

std::vector< std::string > getAllItems ( bool escapeDelimiters = false ) const

Get all levels as strings.

Definition at line 273 of file MemoryID.cpp.

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◆ getCoreSegmentID()

MemoryID getCoreSegmentID ( ) const

Definition at line 294 of file MemoryID.cpp.

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◆ getEntityID()

MemoryID getEntityID ( ) const

Definition at line 310 of file MemoryID.cpp.

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◆ getEntityInstanceID()

MemoryID getEntityInstanceID ( ) const

Definition at line 326 of file MemoryID.cpp.

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◆ getEntitySnapshotID()

MemoryID getEntitySnapshotID ( ) const

Definition at line 318 of file MemoryID.cpp.

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◆ getItems()

std::vector< std::string > getItems ( bool escapeDelimiters = false ) const

Get the levels from root to first not defined level (excluding).

Definition at line 233 of file MemoryID.cpp.

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◆ getLeafItem()

std::string getLeafItem ( ) const

Get the lowest defined level (or empty string if there is none).

Definition at line 119 of file MemoryID.cpp.

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◆ getMemoryID()

MemoryID getMemoryID ( ) const

Definition at line 286 of file MemoryID.cpp.

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◆ getProviderSegmentID()

MemoryID getProviderSegmentID ( ) const

Definition at line 302 of file MemoryID.cpp.

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◆ hasCoreSegmentName()

bool hasCoreSegmentName ( ) const

inline

Definition at line 109 of file MemoryID.h.

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◆ hasEntityName()

bool hasEntityName ( ) const

inline

Definition at line 121 of file MemoryID.h.

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◆ hasGap()

bool hasGap ( ) const

Indicate whether this ID has a gap such as in 'Memory//MyProvider' (no core segment name).

Definition at line 163 of file MemoryID.cpp.

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◆ hasInstanceIndex()

bool hasInstanceIndex ( ) const

inline

Definition at line 139 of file MemoryID.h.

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◆ hasMemoryName()

bool hasMemoryName ( ) const

inline

Definition at line 103 of file MemoryID.h.

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◆ hasProviderSegmentName()

bool hasProviderSegmentName ( ) const

inline

Definition at line 115 of file MemoryID.h.

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◆ hasTimestamp()

bool hasTimestamp ( ) const

inline

Definition at line 127 of file MemoryID.h.

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◆ instanceIndexFromStr()

int instanceIndexFromStr ( const std::string & index )

static

Reconstruct an instance index from a string as returned by instanceIndexStr().

Definition at line 467 of file MemoryID.cpp.

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◆ instanceIndexStr()

std::string instanceIndexStr ( ) const

Get the instance index as string.

Definition at line 455 of file MemoryID.cpp.

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◆ isWellDefined()

bool isWellDefined ( ) const

Indicate whether this ID is well-defined.

A well-defined ID has no specified level after a non-specified level (i.e., no gaps).

Well-defined examples:

"" (empty, but well-defined)
"Memory" (a memory ID)
"Memory/Core" (a core segment ID)
"Memory/Core/Provider" (a provider segment ID)

Non-well-defined examples:

"Memory//Provider" (no core segment name)
"/Core" (no memory name)
"Mem/Core/Prov/entity//0" (no timestamp)
"///entity//0" (no memory, core segment and provider segment names)

Returns: True if *this is a well-defined memory ID.

Definition at line 182 of file MemoryID.cpp.

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◆ operator!=()

bool operator!= ( const MemoryID & other ) const

inline

Definition at line 229 of file MemoryID.h.

◆ operator<()

bool operator< ( const MemoryID & rhs ) const

Definition at line 482 of file MemoryID.cpp.

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◆ operator<=()

bool operator<= ( const MemoryID & rhs ) const

inline

Definition at line 243 of file MemoryID.h.

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◆ operator==()

bool operator== ( const MemoryID & other ) const

Definition at line 473 of file MemoryID.cpp.

◆ operator>()

bool operator> ( const MemoryID & rhs ) const

inline

Definition at line 237 of file MemoryID.h.

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◆ operator>=()

bool operator>= ( const MemoryID & rhs ) const

inline

Definition at line 249 of file MemoryID.h.

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◆ removeLeafItem()

MemoryID removeLeafItem ( ) const

Definition at line 334 of file MemoryID.cpp.

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◆ setCoreSegmentID()

void setCoreSegmentID ( const MemoryID & id )

Definition at line 366 of file MemoryID.cpp.

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◆ setEntityID()

void setEntityID ( const MemoryID & id )

Definition at line 380 of file MemoryID.cpp.

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◆ setEntityInstanceID()

void setEntityInstanceID ( const MemoryID & id )

Definition at line 394 of file MemoryID.cpp.

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◆ setEntitySnapshotID()

void setEntitySnapshotID ( const MemoryID & id )

Definition at line 387 of file MemoryID.cpp.

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◆ setMemoryID()

void setMemoryID ( const MemoryID & id )

Definition at line 360 of file MemoryID.cpp.

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◆ setProviderSegmentID()

void setProviderSegmentID ( const MemoryID & id )

Definition at line 373 of file MemoryID.cpp.

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◆ str()

std::string str ( bool escapeDelimiters = true ) const

Get a string representation of this memory ID.

Items are separated by a delimiter. If escapeDelimiter is true, delimiters occuring inside names are escaped with backward slashes. This allows to reconstruct the memory ID from the result of str() in these cases.

Parameters

escapeDelimiter If true, escape delimiters inside names

Returns: A string representation of this MemoryID.

Definition at line 102 of file MemoryID.cpp.

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◆ timestampFromStr()

Time timestampFromStr ( const std::string & timestamp )

static

Reconstruct a timestamp from a string as returned by timestampStr().

Definition at line 461 of file MemoryID.cpp.

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◆ timestampStr()

std::string timestampStr ( ) const

Get the timestamp as string.

Definition at line 449 of file MemoryID.cpp.

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◆ withCoreSegmentName()

MemoryID withCoreSegmentName ( const std::string & name ) const

Definition at line 409 of file MemoryID.cpp.

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◆ withEntityName()

MemoryID withEntityName ( const std::string & name ) const

Definition at line 425 of file MemoryID.cpp.

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◆ withInstanceIndex()

MemoryID withInstanceIndex ( int index ) const

Definition at line 441 of file MemoryID.cpp.

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◆ withMemoryName()

MemoryID withMemoryName ( const std::string & name ) const

Definition at line 401 of file MemoryID.cpp.

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◆ withProviderSegmentName()

MemoryID withProviderSegmentName ( const std::string & name ) const

Definition at line 417 of file MemoryID.cpp.

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◆ withTimestamp()

MemoryID withTimestamp ( Time time ) const

Definition at line 433 of file MemoryID.cpp.

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Friends And Related Function Documentation

◆ operator<<

std::ostream& operator<<	(	std::ostream &	os,
		const MemoryID	id
	)

friend

Definition at line 557 of file MemoryID.cpp.

Member Data Documentation

◆ coreSegmentName

std::string coreSegmentName = ""

Definition at line 51 of file MemoryID.h.

◆ entityName

std::string entityName = ""

Definition at line 53 of file MemoryID.h.

◆ instanceIndex

int instanceIndex = -1

Definition at line 55 of file MemoryID.h.

◆ memoryName

std::string memoryName = ""

Definition at line 50 of file MemoryID.h.

◆ providerSegmentName

std::string providerSegmentName = ""

Definition at line 52 of file MemoryID.h.

◆ timestamp

Time timestamp = Time::Invalid()

Definition at line 54 of file MemoryID.h.

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

RobotAPI/libraries/armem/core/MemoryID.h
RobotAPI/libraries/armem/core/MemoryID.cpp

Public Member Functions

Static Public Member Functions

Public Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ MemoryID() [1/3]

◆ MemoryID() [2/3]

◆ MemoryID() [3/3]

Member Function Documentation

◆ cleanID()

◆ clearInstanceIndex()

◆ clearTimestamp()

◆ fromItems()

◆ fromString()

◆ getAllItems()

◆ getCoreSegmentID()

◆ getEntityID()

◆ getEntityInstanceID()

◆ getEntitySnapshotID()

◆ getItems()

◆ getLeafItem()

◆ getMemoryID()

◆ getProviderSegmentID()

◆ hasCoreSegmentName()

◆ hasEntityName()

◆ hasGap()

◆ hasInstanceIndex()

◆ hasMemoryName()

◆ hasProviderSegmentName()

◆ hasTimestamp()

◆ instanceIndexFromStr()

◆ instanceIndexStr()

◆ isWellDefined()

◆ operator!=()

◆ operator<()

◆ operator<=()

◆ operator==()

◆ operator>()

◆ operator>=()

◆ removeLeafItem()

◆ setCoreSegmentID()

◆ setEntityID()

◆ setEntityInstanceID()

◆ setEntitySnapshotID()

◆ setMemoryID()

◆ setProviderSegmentID()

◆ str()

◆ timestampFromStr()

◆ timestampStr()

◆ withCoreSegmentName()

◆ withEntityName()

◆ withInstanceIndex()

◆ withMemoryName()

◆ withProviderSegmentName()

◆ withTimestamp()

Friends And Related Function Documentation

◆ operator<<

Member Data Documentation

◆ coreSegmentName

◆ entityName

◆ instanceIndex

◆ memoryName

◆ providerSegmentName

◆ timestamp