io.servicetalk.client.api.partition

Interface PartitionAttributes

public interface PartitionAttributes

Provide a way to describe a partition using a collection of of attributes. Typically only a single type of any particular PartitionAttributes.Key exists in each PartitionAttributes. For example:

 { [Key(shard) = "shard X"], [Key(data center) = "data center X"], [Key(is master) = "false/true"] }
 

This construct allows for the attributes to partially specify a partition and preform "wild card" type matching.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	PartitionAttributes.Key<T> A key identifies a specific object in a PartitionAttributes.

Method Summary

Modifier and Type	Method and Description
default <T> boolean	contains(PartitionAttributes.Key<T> key) Determine if there is a value associated with key.
void	forEach(java.util.function.BiConsumer<PartitionAttributes.Key,java.lang.Object> action) Iterate over the key/value pairs in this collection.
<T> T	get(PartitionAttributes.Key<T> key) Get the value associated with key.
boolean	isEmpty() Determine if there are no key/value pairs in this collection.
int	size() Determine how many key/value pairs are contained in this collection.

Method Detail

get

@Nullable
<T> T get(PartitionAttributes.Key<T> key)

Get the value associated with key.

Type Parameters:

T - The expected value type associated with key.

Parameters:

key - The key to lookup.

Returns:

the value associated with key, or null.

contains

default <T> boolean contains(PartitionAttributes.Key<T> key)

Determine if there is a value associated with key.

Type Parameters:

T - The expected value type associated with key.

Parameters:

key - The key to check if there is any associated value for.

Returns:

true if there is a value associated with key.

forEach

void forEach(java.util.function.BiConsumer<PartitionAttributes.Key,java.lang.Object> action)

Iterate over the key/value pairs in this collection.

Parameters:

action - Invoked for each key/value pair in this collection.

size

int size()

Determine how many key/value pairs are contained in this collection.

Returns:

the number of key/value pairs are contained in this collection.

isEmpty

boolean isEmpty()

Determine if there are no key/value pairs in this collection.

Returns:

true if there are no key/value pairs in this collection.