Class TiDBDialect

    • Method Detail

      • supportsCascadeDelete

        public boolean supportsCascadeDelete()
        Description copied from class: Dialect
        Does this dialect support cascaded delete on foreign key definitions?
        Overrides:
        supportsCascadeDelete in class MySQLDialect
        Returns:
        true indicates that the dialect does support cascaded delete on foreign keys.
      • getQuerySequencesString

        public String getQuerySequencesString()
        Description copied from class: Dialect
        Get the select command used retrieve the names of all sequences.
        Overrides:
        getQuerySequencesString in class Dialect
        Returns:
        The select command; or null if sequences are not supported.
      • supportsNoWait

        public boolean supportsNoWait()
        Description copied from class: Dialect
        Does this dialect/database support NO_WAIT timeout.
        Overrides:
        supportsNoWait in class MySQLDialect
        Returns:
        true if NO_WAIT is supported
      • supportsWait

        public boolean supportsWait()
        Description copied from class: Dialect
        Does this dialect/database support WAIT timeout.
        Overrides:
        supportsWait in class MySQLDialect
        Returns:
        true if WAIT is supported
      • getReadLockString

        public String getReadLockString​(int timeout)
        Description copied from class: Dialect
        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.
        Overrides:
        getReadLockString in class MySQLDialect
        Parameters:
        timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
        Returns:
        The appropriate LOCK clause string.
      • getReadLockString

        public String getReadLockString​(String aliases,
                                        int timeout)
        Description copied from class: Dialect
        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.
        Overrides:
        getReadLockString in class MySQLDialect
        Parameters:
        aliases - The columns to be read locked.
        timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
        Returns:
        The appropriate LOCK clause string.
      • getWriteLockString

        public String getWriteLockString​(int timeout)
        Description copied from class: Dialect
        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.
        Overrides:
        getWriteLockString in class MySQLDialect
        Parameters:
        timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
        Returns:
        The appropriate LOCK clause string.
      • getForUpdateNowaitString

        public String getForUpdateNowaitString()
        Description copied from class: Dialect
        Retrieves the FOR UPDATE NOWAIT syntax specific to this dialect.
        Overrides:
        getForUpdateNowaitString in class MySQLDialect
        Returns:
        The appropriate FOR UPDATE NOWAIT clause string.
      • getForUpdateNowaitString

        public String getForUpdateNowaitString​(String aliases)
        Description copied from class: Dialect
        Get the FOR UPDATE OF column_list NOWAIT fragment appropriate for this dialect given the aliases of the columns to be write locked.
        Overrides:
        getForUpdateNowaitString in class MySQLDialect
        Parameters:
        aliases - The columns to be write locked.
        Returns:
        The appropriate FOR UPDATE OF colunm_list NOWAIT clause string.