io.vertx.rxjava3.pgclient

Class PgConnection

java.lang.Object

io.vertx.rxjava3.sqlclient.SqlClient

io.vertx.rxjava3.sqlclient.SqlConnection

io.vertx.rxjava3.pgclient.PgConnection

public class PgConnection
extends SqlConnection

A connection to Postgres.

The connection object supports all the operations defined in the interface, it also provides additional support:

• Notification
• Request Cancellation

NOTE: This class has been automatically generated from the original non RX-ified interface using Vert.x codegen.

Field Summary

Fields

Modifier and Type	Field and Description
static io.vertx.lang.rx.TypeArg<PgConnection>	__TYPE_ARG

Constructor Summary

Constructors

Constructor and Description
PgConnection(Object delegate)
PgConnection(PgConnection delegate)

Method Summary

Modifier and Type	Method and Description
PgConnection	cancelRequest(Handler<AsyncResult<Void>> handler) Send a request cancellation message to tell the server to cancel processing request in this connection.
static PgConnection	cast(SqlConnection sqlConnection) Cast a to PgConnection.
PgConnection	closeHandler(Handler<Void> handler) Set an handler called when the connection is closed.
static Single<PgConnection>	connect(Vertx vertx) Like connect(io.vertx.rxjava3.core.Vertx, io.vertx.pgclient.PgConnectOptions) with options build from the environment variables.
static Single<PgConnection>	connect(Vertx vertx, PgConnectOptions options) Connects to the database and returns the connection if that succeeds.
static Single<PgConnection>	connect(Vertx vertx, String connectionUri) Like connect(io.vertx.rxjava3.core.Vertx, io.vertx.pgclient.PgConnectOptions) with options build from connectionUri.
boolean	equals(Object o)
PgConnection	exceptionHandler(Handler<Throwable> handler) Set an handler called with connection errors.
PgConnection	getDelegate()
int	hashCode()
static PgConnection	newInstance(PgConnection arg)
PgConnection	notificationHandler(Handler<PgNotification> handler) Set an handler called when the connection receives notification on a channel.
Single<PreparedStatement>	prepare(String sql) Create a prepared statement using the given sql string.
int	processId()
static Single<PgConnection>	rxConnect(Vertx vertx) Like connect(io.vertx.rxjava3.core.Vertx, io.vertx.pgclient.PgConnectOptions) with options build from the environment variables.
static Single<PgConnection>	rxConnect(Vertx vertx, PgConnectOptions options) Connects to the database and returns the connection if that succeeds.
static Single<PgConnection>	rxConnect(Vertx vertx, String connectionUri) Like connect(io.vertx.rxjava3.core.Vertx, io.vertx.pgclient.PgConnectOptions) with options build from connectionUri.
Single<PreparedStatement>	rxPrepare(String sql) Create a prepared statement using the given sql string.
int	secretKey()
String	toString()

Methods inherited from class io.vertx.rxjava3.sqlclient.SqlConnection

begin, close, databaseMetadata, isSSL, newInstance, rxBegin, rxClose

Methods inherited from class io.vertx.rxjava3.sqlclient.SqlClient

newInstance, preparedQuery, query

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

__TYPE_ARG

public static final io.vertx.lang.rx.TypeArg<PgConnection> __TYPE_ARG

Constructor Detail

PgConnection

public PgConnection(PgConnection delegate)

PgConnection

public PgConnection(Object delegate)

Method Detail

toString

public String toString()

Overrides:

toString in class SqlConnection

equals

public boolean equals(Object o)

Overrides:

equals in class SqlConnection

hashCode

public int hashCode()

Overrides:

hashCode in class SqlConnection

getDelegate

public PgConnection getDelegate()

Overrides:

getDelegate in class SqlConnection

connect

public static Single<PgConnection> connect(Vertx vertx,
                                           PgConnectOptions options)

Connects to the database and returns the connection if that succeeds.

The connection interracts directly with the database is not a proxy, so closing the connection will close the underlying connection to the database.

Parameters:

vertx - the vertx instance

options - the connect options

Returns:

rxConnect

public static Single<PgConnection> rxConnect(Vertx vertx,
                                             PgConnectOptions options)

Connects to the database and returns the connection if that succeeds.

The connection interracts directly with the database is not a proxy, so closing the connection will close the underlying connection to the database.

Parameters:

vertx - the vertx instance

options - the connect options

Returns:

connect

public static Single<PgConnection> connect(Vertx vertx)

Like connect(io.vertx.rxjava3.core.Vertx, io.vertx.pgclient.PgConnectOptions) with options build from the environment variables.

Parameters:

vertx -

Returns:

rxConnect

public static Single<PgConnection> rxConnect(Vertx vertx)

Like connect(io.vertx.rxjava3.core.Vertx, io.vertx.pgclient.PgConnectOptions) with options build from the environment variables.

Parameters:

vertx -

Returns:

connect

public static Single<PgConnection> connect(Vertx vertx,
                                           String connectionUri)

Like connect(io.vertx.rxjava3.core.Vertx, io.vertx.pgclient.PgConnectOptions) with options build from connectionUri.

Parameters:

vertx -

connectionUri -

Returns:

rxConnect

public static Single<PgConnection> rxConnect(Vertx vertx,
                                             String connectionUri)

Like connect(io.vertx.rxjava3.core.Vertx, io.vertx.pgclient.PgConnectOptions) with options build from connectionUri.

Parameters:

vertx -

connectionUri -

Returns:

notificationHandler

public PgConnection notificationHandler(Handler<PgNotification> handler)

Set an handler called when the connection receives notification on a channel.

The handler is called with the PgNotification and has access to the channel name and the notification payload.

Parameters:

handler - the handler

Returns:

the transaction instance

cancelRequest

public PgConnection cancelRequest(Handler<AsyncResult<Void>> handler)

Send a request cancellation message to tell the server to cancel processing request in this connection.
Note: Use this with caution because the cancellation signal may or may not have any effect.

Parameters:

handler - the handler notified if cancelling request is sent

Returns:

a reference to this, so the API can be used fluently

processId

public int processId()

Returns:

The process ID of the target backend

secretKey

public int secretKey()

Returns:

The secret key for the target backend

prepare

public Single<PreparedStatement> prepare(String sql)

Description copied from class: SqlConnection

Create a prepared statement using the given sql string.

Overrides:

prepare in class SqlConnection

Parameters:

sql -

Returns:

rxPrepare

public Single<PreparedStatement> rxPrepare(String sql)

Description copied from class: SqlConnection

Create a prepared statement using the given sql string.

Overrides:

rxPrepare in class SqlConnection

Parameters:

sql -

Returns:

exceptionHandler

public PgConnection exceptionHandler(Handler<Throwable> handler)

Description copied from class: SqlConnection

Set an handler called with connection errors.

Overrides:

exceptionHandler in class SqlConnection

Parameters:

handler -

Returns:

closeHandler

public PgConnection closeHandler(Handler<Void> handler)

Description copied from class: SqlConnection

Set an handler called when the connection is closed.

Overrides:

closeHandler in class SqlConnection

Parameters:

handler -

Returns:

cast

public static PgConnection cast(SqlConnection sqlConnection)

Cast a to PgConnection. This is mostly useful for Vert.x generated APIs like RxJava/Mutiny.

Parameters:

sqlConnection - the connection to cast

Returns:

a instance

newInstance

public static PgConnection newInstance(PgConnection arg)