Struct rdkafka::topic_partition_list::TopicPartitionList

pub struct TopicPartitionList { /* fields omitted */ }

A structure to store and manipulate a list of topics and partitions with optional offsets.

Methods

impl TopicPartitionList

pub fn new() -> TopicPartitionList

Creates a new empty list with default capacity.

pub fn with_capacity(capacity: usize) -> TopicPartitionList

Creates a new empty list with the specified capacity.

pub unsafe fn from_ptr(
    ptr: *mut RDKafkaTopicPartitionList
) -> TopicPartitionList

Transforms a pointer to the native librdkafka RDTopicPartitionList into a managed TopicPartitionList instance.

pub fn from_topic_map(
    topic_map: &HashMap<(String, i32), Offset>
) -> TopicPartitionList

Given a topic map, generates a new TopicPartitionList.

pub fn ptr(&self) -> *mut RDKafkaTopicPartitionList

Returns the pointer to the internal librdkafka structure.

pub unsafe fn leak(self)

Capture the instance without calling the destructor on the internal librdkafka structure.

pub fn count(&self) -> usize

Returns the number of elements in the list.

pub fn capacity(&self) -> usize

Returns the capacity of the list.

pub fn add_topic_unassigned<'a>(
    &'a mut self,
    topic: &str
) -> TopicPartitionListElem<'a>

Adds a topic with unassigned partitions to the list.

pub fn add_partition<'a>(
    &'a mut self,
    topic: &str,
    partition: i32
) -> TopicPartitionListElem<'a>

Adds a topic and partition to the list.

pub fn add_partition_range(
    &mut self,
    topic: &str,
    start_partition: i32,
    stop_partition: i32
)

Adds a topic and partition range to the list.

pub fn set_partition_offset(
    &mut self,
    topic: &str,
    partition: i32,
    offset: Offset
) -> KafkaResult<()>

Sets the offset for an already created topic partition. It will fail if the topic partition isn't in the list.

pub fn add_partition_offset(
    &mut self,
    topic: &str,
    partition: i32,
    offset: Offset
)

Adds a topic and partition to the list, with the specified offset.

pub fn find_partition(
    &self,
    topic: &str,
    partition: i32
) -> Option<TopicPartitionListElem>

Given a topic name and a partition number, returns the corresponding list element.

pub fn set_all_offsets(&mut self, offset: Offset)

Sets all partitions in the list to the specified offset.

Important traits for Vec<u8>

impl Write for Vec<u8>

pub fn elements(&self) -> Vec<TopicPartitionListElem>

Returns all the elements of the list.

Important traits for Vec<u8>

impl Write for Vec<u8>

pub fn elements_for_topic<'a>(
    &'a self,
    topic: &str
) -> Vec<TopicPartitionListElem<'a>>

Returns all the elements of the list that belong to the specified topic.

pub fn to_topic_map(&self) -> HashMap<(String, i32), Offset>

Returns a hashmap-based representation of the list.

Trait Implementations

impl Clone for TopicPartitionList

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Drop for TopicPartitionList

fn drop(&mut self)

Executes the destructor for this type.

impl PartialEq for TopicPartitionList

fn eq(&self, other: &TopicPartitionList) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Default for TopicPartitionList

fn default() -> Self

Returns the "default value" for a type.

impl Debug for TopicPartitionList

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.