org.springframework.r2dbc.connection

Class ConnectionHolder

java.lang.Object

org.springframework.transaction.support.ResourceHolderSupport

org.springframework.r2dbc.connection.ConnectionHolder

All Implemented Interfaces:

ResourceHolder

public class ConnectionHolder
extends ResourceHolderSupport

Resource holder wrapping a R2DBC Connection. R2dbcTransactionManager binds instances of this class to the subscription, for a specific ConnectionFactory.

Inherits rollback-only support for nested R2DBC transactions and reference count functionality from the base class.

Note: This is an SPI class, not intended to be used by applications.

Since:

5.3

Author:

Mark Paluch, Christoph Strobl

See Also:

R2dbcTransactionManager, ConnectionFactoryUtils

Constructor Summary

Constructors

Constructor and Description
ConnectionHolder(Connection connection) Create a new ConnectionHolder for the given R2DBC Connection, assuming that there is no ongoing transaction.
ConnectionHolder(Connection connection, boolean transactionActive) Create a new ConnectionHolder for the given R2DBC Connection.

Method Summary

Modifier and Type	Method and Description
void	clear() Clear the transactional state of this resource holder.
Connection	getConnection() Return the current Connection held by this ConnectionHolder.
protected boolean	hasConnection() Return whether this holder currently has a Connection.
protected boolean	isTransactionActive() Return whether this holder represents an active, R2DBC-managed transaction.
void	released() Releases the current Connection.
protected void	setConnection(Connection connection) Override the existing Connection with the given Connection.
protected void	setTransactionActive(boolean transactionActive) Set whether this holder represents an active, R2DBC-managed transaction.

Methods inherited from class org.springframework.transaction.support.ResourceHolderSupport

getDeadline, getTimeToLiveInMillis, getTimeToLiveInSeconds, hasTimeout, isOpen, isRollbackOnly, isSynchronizedWithTransaction, isVoid, requested, reset, resetRollbackOnly, setRollbackOnly, setSynchronizedWithTransaction, setTimeoutInMillis, setTimeoutInSeconds, unbound

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConnectionHolder

public ConnectionHolder(Connection connection)

Create a new ConnectionHolder for the given R2DBC Connection, assuming that there is no ongoing transaction.

Parameters:

connection - the R2DBC Connection to hold

See Also:

ConnectionHolder(Connection, boolean)

ConnectionHolder

public ConnectionHolder(Connection connection,
                        boolean transactionActive)

Create a new ConnectionHolder for the given R2DBC Connection.

Parameters:

connection - the R2DBC Connection to hold

transactionActive - whether the given Connection is involved in an ongoing transaction

Method Detail

hasConnection

protected boolean hasConnection()

Return whether this holder currently has a Connection.

setTransactionActive

protected void setTransactionActive(boolean transactionActive)

Set whether this holder represents an active, R2DBC-managed transaction.

See Also:

R2dbcTransactionManager

isTransactionActive

protected boolean isTransactionActive()

Return whether this holder represents an active, R2DBC-managed transaction.

setConnection

protected void setConnection(@Nullable
                             Connection connection)

Override the existing Connection with the given Connection.

Used for releasing the Connection on suspend (with a null argument) and setting a fresh Connection on resume.

getConnection

public Connection getConnection()

Return the current Connection held by this ConnectionHolder.

This will be the same Connection until released gets called on the ConnectionHolder, which will reset the held Connection, fetching a new Connection on demand.

See Also:

released()

released

public void released()

Releases the current Connection.

Overrides:

released in class ResourceHolderSupport

clear

public void clear()

Description copied from class: ResourceHolderSupport

Clear the transactional state of this resource holder.

Overrides:

clear in class ResourceHolderSupport