Top Description Constructors Methods
org.hibernate.dialect

public Class PostgreSQL95Dialect

extends PostgreSQL94Dialect
Class Inheritance
Known Direct Subclasses
org.hibernate.dialect.PostgreSQL10Dialect
Imports
org.hibernate.LockOptions
An SQL dialect for Postgres 9.5 and later. Adds support for SKIP LOCKED.

Constructor Summary

AccessConstructor and Description
public
PostgreSQL95Dialect()

Method Summary

Modifier and TypeMethod and Description
public String
getForUpdateSkipLockedString()

Overrides org.hibernate.dialect.Dialect.getForUpdateSkipLockedString.

Retrieves the FOR UPDATE SKIP LOCKED syntax specific to this dialect.
public String
getForUpdateSkipLockedString(String
The columns to be write locked.
aliases)

Overrides org.hibernate.dialect.Dialect.getForUpdateSkipLockedString.

Get the FOR UPDATE OF column_list SKIP LOCKED fragment appropriate for this dialect given the aliases of the columns to be write locked.
public String
getReadLockString(int
in milliseconds, -1 for indefinite wait and 0 for no wait.
timeout)

Overrides org.hibernate.dialect.PostgreSQL81Dialect.getReadLockString.

Get the string to append to SELECT statements to acquire READ locks for this dialect.
public String
getReadLockString(String
The columns to be read locked.
aliases, int
in milliseconds, -1 for indefinite wait and 0 for no wait.
timeout)

Overrides org.hibernate.dialect.PostgreSQL81Dialect.getReadLockString.

Get the string to append to SELECT statements to acquire READ locks for this dialect given the aliases of the columns to be read locked.
public String
getWriteLockString(int
in milliseconds, -1 for indefinite wait and 0 for no wait.
timeout)

Overrides org.hibernate.dialect.PostgreSQL81Dialect.getWriteLockString.

Get the string to append to SELECT statements to acquire WRITE locks for this dialect.
public String
getWriteLockString(String
The columns to be read locked.
aliases, int
in milliseconds, -1 for indefinite wait and 0 for no wait.
timeout)

Overrides org.hibernate.dialect.PostgreSQL81Dialect.getWriteLockString.

Get the string to append to SELECT statements to acquire WRITE locks for this dialect given the aliases of the columns to be write locked.
public boolean
supportsSkipLocked()

Overrides org.hibernate.dialect.Dialect.supportsSkipLocked.

Does this dialect/database support SKIP_LOCKED timeout.

Constructor Detail

PostgreSQL95Dialectback to summary
public PostgreSQL95Dialect()

Method Detail

getForUpdateSkipLockedStringback to summary
public String getForUpdateSkipLockedString()

Overrides org.hibernate.dialect.Dialect.getForUpdateSkipLockedString.

Doc from org.hibernate.dialect.Dialect.getForUpdateSkipLockedString.

Retrieves the FOR UPDATE SKIP LOCKED syntax specific to this dialect.

Returns:String

The appropriate FOR UPDATE SKIP LOCKED clause string.

Annotations
@Override
getForUpdateSkipLockedStringback to summary
public String getForUpdateSkipLockedString(String aliases)

Overrides org.hibernate.dialect.Dialect.getForUpdateSkipLockedString.

Doc from org.hibernate.dialect.Dialect.getForUpdateSkipLockedString.

Get the FOR UPDATE OF column_list SKIP LOCKED fragment appropriate for this dialect given the aliases of the columns to be write locked.

Parameters
aliases:String

The columns to be write locked.

Returns:String

The appropriate FOR UPDATE colunm_list SKIP LOCKED clause string.

Annotations
@Override
getReadLockStringback to summary
public String getReadLockString(int timeout)

Overrides org.hibernate.dialect.PostgreSQL81Dialect.getReadLockString.

Doc from org.hibernate.dialect.Dialect.getReadLockString.

Get the string to append to SELECT statements to acquire READ locks for this dialect. Location of the returned string is treated the same as getForUpdateString.

Parameters
timeout:int

in milliseconds, -1 for indefinite wait and 0 for no wait.

Returns:String

The appropriate LOCK clause string.

Annotations
@Override
getReadLockStringback to summary
public String getReadLockString(String aliases, int timeout)

Overrides org.hibernate.dialect.PostgreSQL81Dialect.getReadLockString.

Doc from org.hibernate.dialect.Dialect.getReadLockString.

Get the string to append to SELECT statements to acquire READ locks for this dialect given the aliases of the columns to be read locked. Location of the returned string is treated the same as getForUpdateString.

Parameters
aliases:String

The columns to be read locked.

timeout:int

in milliseconds, -1 for indefinite wait and 0 for no wait.

Returns:String

The appropriate LOCK clause string.

Annotations
@Override
getWriteLockStringback to summary
public String getWriteLockString(int timeout)

Overrides org.hibernate.dialect.PostgreSQL81Dialect.getWriteLockString.

Doc from org.hibernate.dialect.Dialect.getWriteLockString.

Get the string to append to SELECT statements to acquire WRITE locks for this dialect. Location of the returned string is treated the same as getForUpdateString.

Parameters
timeout:int

in milliseconds, -1 for indefinite wait and 0 for no wait.

Returns:String

The appropriate LOCK clause string.

Annotations
@Override
getWriteLockStringback to summary
public String getWriteLockString(String aliases, int timeout)

Overrides org.hibernate.dialect.PostgreSQL81Dialect.getWriteLockString.

Doc from org.hibernate.dialect.Dialect.getWriteLockString.

Get the string to append to SELECT statements to acquire WRITE locks for this dialect given the aliases of the columns to be write locked. Location of the of the returned string is treated the same as getForUpdateString.

Parameters
aliases:String

The columns to be read locked.

timeout:int

in milliseconds, -1 for indefinite wait and 0 for no wait.

Returns:String

The appropriate LOCK clause string.

Annotations
@Override
supportsSkipLockedback to summary
public boolean supportsSkipLocked()

Overrides org.hibernate.dialect.Dialect.supportsSkipLocked.

Doc from org.hibernate.dialect.Dialect.supportsSkipLocked.

Does this dialect/database support SKIP_LOCKED timeout.

Returns:boolean

true if SKIP_LOCKED is supported

Annotations
@Override