ru.yandex.clickhouse.jdbcbridge.core

Interface Repository<T extends ManagedEntity>

All Known Implementing Classes:

BaseRepository, JsonFileRepository

public interface Repository<T extends ManagedEntity>

This interface defines a repository for managing ManagedEntity like NamedDataSource, NamedSchema, and NamedQuery.

Since:

2.0

Method Summary

Modifier and Type	Method and Description
boolean	accept(Class<?> clazz) Check if the given type of entity can be managed by this repository.
T	get(String id) Get entity from repository by id.
Class<T>	getEntityClass() Get class of managed entities.
default T	getOrCreate(String id) Get or create entity from repository by id.
List<UsageStats>	getUsageStats() Get usage statistics of the repository.
void	put(String id, T entity) Put a named entity into the repository.
void	registerType(String type, Extension<T> extension) Register new type of entity to be manged in this repository.
String	resolve(String name) Resolve given name.

Method Detail

getEntityClass

Class<T> getEntityClass()

Get class of managed entities.

Returns:

class of managed entities

accept

boolean accept(Class<?> clazz)

Check if the given type of entity can be managed by this repository.

Parameters:

clazz - class of the entity

Returns:

true if the type of entity can be managed by this repository; false otherwise

resolve

String resolve(String name)

Resolve given name. Usually just about DNS SRV record resolving, for example: jdbc:clickhouse:{{ ch-server.somedomain }}/system will be resolved to something like jdbc:clickhouse:127.0.0.1:8123/system.

Parameters:

name - name to resolve

Returns:

resolved name

getUsageStats

List<UsageStats> getUsageStats()

Get usage statistics of the repository.

Returns:

usage statistics

registerType

void registerType(String type,
                  Extension<T> extension)

Register new type of entity to be manged in this repository.

Parameters:

type - type of entity, defaults to extension class name

extension - extension for instantiate new type of entity

put

void put(String id,
         T entity)

Put a named entity into the repository.

Parameters:

id - id of the entity, could be null

entity - non-null entity to be added

get

T get(String id)

Get entity from repository by id.

Parameters:

id - id of the entity

Returns:

desired entity

getOrCreate

default T getOrCreate(String id)

Get or create entity from repository by id.

Parameters:

id - id of the entity

Returns:

desired entity