Package org.hibernate.dialect.lock.internal

Class PostgreSQLLockingSupport

java.lang.Object

org.hibernate.dialect.lock.internal.PostgreSQLLockingSupport

All Implemented Interfaces:

ConnectionLockTimeoutStrategy, LockingSupport, LockingSupport.Metadata

public class PostgreSQLLockingSupport
extends Object
implements LockingSupport, LockingSupport.Metadata, ConnectionLockTimeoutStrategy

Nested Class Summary

Nested classes/interfaces inherited from interface org.hibernate.dialect.lock.spi.ConnectionLockTimeoutStrategy

ConnectionLockTimeoutStrategy.Level

Nested classes/interfaces inherited from interface org.hibernate.dialect.lock.spi.LockingSupport

LockingSupport.Metadata

Field Summary

Fields

Modifier and Type	Field	Description
static final LockingSupport	LOCKING_SUPPORT

Fields inherited from interface org.hibernate.dialect.lock.spi.ConnectionLockTimeoutStrategy

NONE

Constructor Summary

Constructors

Constructor	Description
PostgreSQLLockingSupport()
PostgreSQLLockingSupport(boolean supportsNoWait, boolean supportsSkipLocked)

Method Summary

Modifier and Type	Method	Description
ConnectionLockTimeoutStrategy	getConnectionLockTimeoutStrategy()	Access to the delegate which can be used for applying lock timeouts using the JDBC connection, generally via execution of a command/statement.
Timeout	getLockTimeout(Connection connection, SessionFactoryImplementor factory)	Read the lock timeout associated with the JDBC connection, if supported and there is one.
LockTimeoutType	getLockTimeoutType(Timeout timeout)	How (if) this Dialect supports the given timeout value.
LockingSupport.Metadata	getMetadata()	Access to details about the locking capabilities of a Dialect.
OuterJoinLockingType	getOuterJoinLockingType()	The type of support for outer joins with pessimistic locking.
ConnectionLockTimeoutStrategy.Level	getSupportedLevel()	What type, if any, of support this Dialect has for lock timeouts on the JDBC connection.
RowLockStrategy	getWriteRowLockStrategy()	The strategy for indicating which rows to lock as part of a for update of style clause.
void	setLockTimeout(Timeout timeout, Connection connection, SessionFactoryImplementor factory)	Set the lock timeout associated with the JDBC connection (if supported), in milliseconds.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.dialect.lock.spi.LockingSupport.Metadata

getPessimisticLockStyle, getReadRowLockStrategy, supportsForUpdate, supportsNoWait, supportsSkipLocked, supportsWait

Field Details

LOCKING_SUPPORT

public static final LockingSupport LOCKING_SUPPORT

Constructor Details

PostgreSQLLockingSupport

public PostgreSQLLockingSupport()

PostgreSQLLockingSupport

public PostgreSQLLockingSupport(boolean supportsNoWait,
 boolean supportsSkipLocked)

Method Details

getMetadata

public LockingSupport.Metadata getMetadata()

Description copied from interface: LockingSupport

Access to details about the locking capabilities of a Dialect.

Specified by:

getMetadata in interface LockingSupport

getWriteRowLockStrategy

public RowLockStrategy getWriteRowLockStrategy()

Description copied from interface: LockingSupport.Metadata

The strategy for indicating which rows to lock as part of a for update of style clause.

Specified by:

getWriteRowLockStrategy in interface LockingSupport.Metadata

getLockTimeoutType

public LockTimeoutType getLockTimeoutType(Timeout timeout)

Description copied from interface: LockingSupport.Metadata

How (if) this Dialect supports the given timeout value.

Specified by:

getLockTimeoutType in interface LockingSupport.Metadata

See Also:

• LockingSupport.Metadata.getPessimisticLockStyle()

getOuterJoinLockingType

public OuterJoinLockingType getOuterJoinLockingType()

Description copied from interface: LockingSupport.Metadata

The type of support for outer joins with pessimistic locking.

Specified by:

getOuterJoinLockingType in interface LockingSupport.Metadata

getConnectionLockTimeoutStrategy

public ConnectionLockTimeoutStrategy getConnectionLockTimeoutStrategy()

Description copied from interface: LockingSupport

Access to the delegate which can be used for applying lock timeouts using the JDBC connection, generally via execution of a command/statement.

Specified by:

getConnectionLockTimeoutStrategy in interface LockingSupport

getSupportedLevel

public ConnectionLockTimeoutStrategy.Level getSupportedLevel()

Description copied from interface: ConnectionLockTimeoutStrategy

What type, if any, of support this Dialect has for lock timeouts on the JDBC connection.

Specified by:

getSupportedLevel in interface ConnectionLockTimeoutStrategy

See Also:

• ConnectionLockTimeoutStrategy.getLockTimeout(java.sql.Connection, org.hibernate.engine.spi.SessionFactoryImplementor)
• ConnectionLockTimeoutStrategy.setLockTimeout(jakarta.persistence.Timeout, java.sql.Connection, org.hibernate.engine.spi.SessionFactoryImplementor)

getLockTimeout

public Timeout getLockTimeout(Connection connection,
 SessionFactoryImplementor factory)

Description copied from interface: ConnectionLockTimeoutStrategy

Read the lock timeout associated with the JDBC connection, if supported and there is one.

Specified by:

getLockTimeout in interface ConnectionLockTimeoutStrategy

See Also:

• ConnectionLockTimeoutStrategy.getSupportedLevel()

setLockTimeout

public void setLockTimeout(Timeout timeout,
 Connection connection,
 SessionFactoryImplementor factory)

Description copied from interface: ConnectionLockTimeoutStrategy

Set the lock timeout associated with the JDBC connection (if supported), in milliseconds.

Specified by:

setLockTimeout in interface ConnectionLockTimeoutStrategy

See Also:

• ConnectionLockTimeoutStrategy.getSupportedLevel()