WPILibC++ 2027.0.0-alpha-4
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wpi::nt::GenericEntry Class Referencefinal

NetworkTables generic entry. More...

#include <wpi/nt/GenericEntry.hpp>

Inheritance diagram for wpi::nt::GenericEntry:
wpi::nt::GenericSubscriber wpi::nt::GenericPublisher wpi::nt::Subscriber wpi::nt::Publisher

Public Types

using SubscriberType = GenericSubscriber
using PublisherType = GenericPublisher
using TopicType = Topic
using ValueType = Value
using ParamType = const Value&
using TimestampedValueType = Value
Public Types inherited from wpi::nt::GenericSubscriber
using TopicType = Topic
using ValueType = Value
using ParamType = const Value&
using TimestampedValueType = Value
Public Types inherited from wpi::nt::GenericPublisher
using TopicType = Topic
using ValueType = Value
using ParamType = const Value&
using TimestampedValueType = Value

Public Member Functions

 GenericEntry ()=default
 GenericEntry (NT_Entry handle)
 Construct from an entry handle; recommended to use RawTopic::GetEntry() instead.
 operator bool () const
 Determines if the native handle is valid.
NT_Entry GetHandle () const
 Gets the native handle for the entry.
TopicType GetTopic () const
 Get the corresponding topic.
void Unpublish ()
 Stops publishing the entry if it's published.
Public Member Functions inherited from wpi::nt::GenericSubscriber
 GenericSubscriber ()=default
 GenericSubscriber (NT_Subscriber handle)
 Construct from a subscriber handle; recommended to use Topic::GenericSubscribe() instead.
ValueType Get () const
 Get the last published value.
bool GetBoolean (bool defaultValue) const
 Gets the entry's value as a boolean.
int64_t GetInteger (int64_t defaultValue) const
 Gets the entry's value as a integer.
float GetFloat (float defaultValue) const
 Gets the entry's value as a float.
double GetDouble (double defaultValue) const
 Gets the entry's value as a double.
std::string GetString (std::string_view defaultValue) const
 Gets the entry's value as a string.
std::vector< uint8_t > GetRaw (std::span< const uint8_t > defaultValue) const
 Gets the entry's value as a raw.
std::vector< int > GetBooleanArray (std::span< const int > defaultValue) const
 Gets the entry's value as a boolean array.
std::vector< int64_t > GetIntegerArray (std::span< const int64_t > defaultValue) const
 Gets the entry's value as a integer array.
std::vector< float > GetFloatArray (std::span< const float > defaultValue) const
 Gets the entry's value as a float array.
std::vector< double > GetDoubleArray (std::span< const double > defaultValue) const
 Gets the entry's value as a double array.
std::vector< std::string > GetStringArray (std::span< const std::string > defaultValue) const
 Gets the entry's value as a string array.
std::vector< TimestampedValueTypeReadQueue ()
 Get an array of all value changes since the last call to ReadQueue.
TopicType GetTopic () const
 Get the corresponding topic.
Public Member Functions inherited from wpi::nt::Subscriber
virtual ~Subscriber ()
 Subscriber (const Subscriber &)=delete
Subscriberoperator= (const Subscriber &)=delete
 Subscriber (Subscriber &&rhs)
Subscriberoperator= (Subscriber &&rhs)
 operator bool () const
 Determines if the native handle is valid.
NT_Subscriber GetHandle () const
 Gets the native handle for the subscriber.
bool Exists () const
 Determines if the topic is currently being published.
int64_t GetLastChange () const
 Gets the last time the value was changed.
Topic GetTopic () const
 Gets the subscribed-to topic.
Public Member Functions inherited from wpi::nt::GenericPublisher
 GenericPublisher ()=default
 GenericPublisher (NT_Publisher handle)
 Construct from a publisher handle; recommended to use Topic::GenericPublish() instead.
void Set (ParamType value)
 Publish a new value.
bool SetBoolean (bool value, int64_t time=0)
 Sets the entry's value.
bool SetInteger (int64_t value, int64_t time=0)
 Sets the entry's value.
bool SetFloat (float value, int64_t time=0)
 Sets the entry's value.
bool SetDouble (double value, int64_t time=0)
 Sets the entry's value.
bool SetString (std::string_view value, int64_t time=0)
 Sets the entry's value.
bool SetRaw (std::span< const uint8_t > value, int64_t time=0)
 Sets the entry's value.
bool SetBooleanArray (std::span< const bool > value, int64_t time=0)
 Sets the entry's value.
bool SetBooleanArray (std::span< const int > value, int64_t time=0)
 Sets the entry's value.
bool SetIntegerArray (std::span< const int64_t > value, int64_t time=0)
 Sets the entry's value.
bool SetFloatArray (std::span< const float > value, int64_t time=0)
 Sets the entry's value.
bool SetDoubleArray (std::span< const double > value, int64_t time=0)
 Sets the entry's value.
bool SetStringArray (std::span< const std::string > value, int64_t time=0)
 Sets the entry's value.
void SetDefault (ParamType value)
 Publish a default value.
bool SetDefaultBoolean (bool defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultInteger (int64_t defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultFloat (float defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultDouble (double defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultString (std::string_view defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultRaw (std::span< const uint8_t > defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultBooleanArray (std::span< const int > defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultIntegerArray (std::span< const int64_t > defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultFloatArray (std::span< const float > defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultDoubleArray (std::span< const double > defaultValue)
 Sets the entry's value if it does not exist.
bool SetDefaultStringArray (std::span< const std::string > defaultValue)
 Sets the entry's value if it does not exist.
TopicType GetTopic () const
 Get the corresponding topic.
Public Member Functions inherited from wpi::nt::Publisher
virtual ~Publisher ()
 Publisher (const Publisher &)=delete
Publisheroperator= (const Publisher &)=delete
 Publisher (Publisher &&rhs)
Publisheroperator= (Publisher &&rhs)
 operator bool () const
 Determines if the native handle is valid.
NT_Publisher GetHandle () const
 Gets the native handle for the publisher.
Topic GetTopic () const
 Gets the published-to topic.

Additional Inherited Members

Protected Member Functions inherited from wpi::nt::Subscriber
 Subscriber ()=default
 Subscriber (NT_Subscriber handle)
Protected Member Functions inherited from wpi::nt::Publisher
 Publisher ()=default
 Publisher (NT_Publisher handle)
Protected Attributes inherited from wpi::nt::Subscriber
NT_Subscriber m_subHandle {0}
Protected Attributes inherited from wpi::nt::Publisher
NT_Publisher m_pubHandle {0}
 NetworkTables handle.

Detailed Description

NetworkTables generic entry.

Note
Unlike NetworkTableEntry, the entry goes away when this is destroyed.

Member Typedef Documentation

◆ ParamType

◆ PublisherType

◆ SubscriberType

◆ TimestampedValueType

◆ TopicType

◆ ValueType

Constructor & Destructor Documentation

◆ GenericEntry() [1/2]

wpi::nt::GenericEntry::GenericEntry ( )
default

◆ GenericEntry() [2/2]

wpi::nt::GenericEntry::GenericEntry ( NT_Entry handle)
inlineexplicit

Construct from an entry handle; recommended to use RawTopic::GetEntry() instead.

Parameters
handleNative handle

Member Function Documentation

◆ GetHandle()

NT_Entry wpi::nt::GenericEntry::GetHandle ( ) const
inline

Gets the native handle for the entry.

Returns
Native handle

◆ GetTopic()

TopicType wpi::nt::GenericEntry::GetTopic ( ) const
inline

Get the corresponding topic.

Returns
Topic

◆ operator bool()

wpi::nt::GenericEntry::operator bool ( ) const
inlineexplicit

Determines if the native handle is valid.

Returns
True if the native handle is valid, false otherwise.

◆ Unpublish()

void wpi::nt::GenericEntry::Unpublish ( )
inline

Stops publishing the entry if it's published.


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