Package org.hibernate.dialect

Class AbstractHANADialect

    • Field Detail

      • USE_DEFAULT_TABLE_TYPE_COLUMN

        public static final String USE_DEFAULT_TABLE_TYPE_COLUMN
        Deprecated, for removal: This API element is subject to removal in a future version.
        See Also:
        Constant Field Values

    • Constructor Detail

      • AbstractHANADialect

        public AbstractHANADialect​(DatabaseVersion version)
        Deprecated, for removal: This API element is subject to removal in a future version.

      • AbstractHANADialect

        public AbstractHANADialect​(HANAServerConfiguration configuration,
                           boolean defaultTableTypeColumn)
        Deprecated, for removal: This API element is subject to removal in a future version.

    • Method Detail

      • contribute

        public void contribute​(TypeContributions typeContributions,
                       ServiceRegistry serviceRegistry)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from interface: TypeContributor
        Contribute types
        Specified by:
        contribute in interface TypeContributor
        Overrides:
        contribute in class Dialect
        Parameters:
        typeContributions - The callback for adding contributed types
        serviceRegistry - The service registry

      • isDefaultTableTypeColumn

        protected boolean isDefaultTableTypeColumn()
        Deprecated, for removal: This API element is subject to removal in a future version.

      • isCloud

        protected boolean isCloud()
        Deprecated, for removal: This API element is subject to removal in a future version.

      • castPattern

        public String castPattern​(CastType from,
                          CastType to)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Obtain a pattern for the SQL equivalent to a cast() function call. The resulting pattern must contain ?1 and ?2 placeholders for the arguments.
        Overrides:
        castPattern in class Dialect
        Parameters:
        from - a CastType indicating the type of the value argument
        to - a CastType indicating the type the value argument is cast to

      • getDefaultDecimalPrecision

        public int getDefaultDecimalPrecision()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        This is the default precision for a generated column of exact numeric type DECIMAL or NUMERIC mapped to a BigInteger or BigDecimal.

        Usually returns the maximum precision of the database, except when there is no such maximum precision, or the maximum precision is very high.

        Overrides:
        getDefaultDecimalPrecision in class Dialect
        Returns:
        the default precision, in decimal digits
        See Also:
        BigDecimalJavaType, BigIntegerJavaType

      • getMaxVarcharLength

        public int getMaxVarcharLength()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The biggest size value that can be supplied as argument to a Types.VARCHAR-like type.

        For longer column lengths, use some sort of text-like type for the column.

        Overrides:
        getMaxVarcharLength in class Dialect

      • getMaxNVarcharLength

        public int getMaxNVarcharLength()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The biggest size value that can be supplied as argument to a Types.NVARCHAR-like type.

        For longer column lengths, use some sort of ntext-like type for the column.

        Overrides:
        getMaxNVarcharLength in class Dialect

      • getMaxVarbinaryLength

        public int getMaxVarbinaryLength()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The biggest size value that can be supplied as argument to a Types.VARBINARY-like type.

        For longer column lengths, use some sort of image-like type for the column.

        Overrides:
        getMaxVarbinaryLength in class Dialect

      • initializeFunctionRegistry

        public void initializeFunctionRegistry​(FunctionContributions functionContributions)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Initialize the given registry with any dialect-specific functions.

        Support for certain SQL functions is required, and if the database does not support a required function, then the dialect must define a way to emulate it.

        These required functions include the functions defined by the JPA query language specification:

        • avg(arg) - aggregate function
        • count([distinct ]arg) - aggregate function
        • max(arg) - aggregate function
        • min(arg) - aggregate function
        • sum(arg) - aggregate function
        • coalesce(arg0, arg1, ...)
        • nullif(arg0, arg1)
        • lower(arg)
        • upper(arg)
        • length(arg)
        • concat(arg0, arg1, ...)
        • locate(pattern, string[, start])
        • substring(string, start[, length])
        • trim([[spec ][character ]from] string)
        • abs(arg)
        • mod(arg0, arg1)
        • sqrt(arg)
        • current date
        • current time
        • current timestamp
        Along with an additional set of functions defined by ANSI SQL:
        • any(arg) - aggregate function
        • every(arg) - aggregate function
        • var_samp(arg) - aggregate function
        • var_pop(arg) - aggregate function
        • stddev_samp(arg) - aggregate function
        • stddev_pop(arg) - aggregate function
        • cast(arg as Type)
        • extract(field from arg)
        • ln(arg)
        • exp(arg)
        • power(arg0, arg1)
        • floor(arg)
        • ceiling(arg)
        • position(pattern in string)
        • substring(string from start[ for length])
        • overlay(string placing replacement from start[ for length])
        And the following functions for working with java.time types:
        • local date
        • local time
        • local datetime
        • offset datetime
        • instant
        And a number of additional "standard" functions:
        • left(string, length)
        • right(string, length)
        • replace(string, pattern, replacement)
        • pad(string with length spec[ character])
        • repeat(string, times)
        • pi
        • log10(arg)
        • log(base, arg)
        • sign(arg)
        • sin(arg)
        • cos(arg)
        • tan(arg)
        • asin(arg)
        • acos(arg)
        • atan(arg)
        • atan2(arg0, arg1)
        • round(arg0[, arg1])
        • truncate(arg0[, arg1])
        • sinh(arg)
        • tanh(arg)
        • cosh(arg)
        • least(arg0, arg1, ...)
        • greatest(arg0, arg1, ...)
        • degrees(arg)
        • radians(arg)
        • bitand(arg1, arg1)
        • bitor(arg1, arg1)
        • bitxor(arg1, arg1)
        • format(datetime as pattern)
        • collate(string as collation)
        • str(arg) - synonym of cast(a as String)
        • ifnull(arg0, arg1) - synonym of coalesce(a, b)
        Finally, the following functions are defined as abbreviations for extract(), and desugared by the parser:
        • second(arg) - synonym of extract(second from a)
        • minute(arg) - synonym of extract(minute from a)
        • hour(arg) - synonym of extract(hour from a)
        • day(arg) - synonym of extract(day from a)
        • month(arg) - synonym of extract(month from a)
        • year(arg) - synonym of extract(year from a)
        Note that according to this definition, the second() function returns a floating point value, contrary to the integer type returned by the native function with this name on many databases. Thus, we don't just naively map these HQL functions to the native SQL functions with the same names.
        Overrides:
        initializeFunctionRegistry in class Dialect

      • getCreateTableString

        public String getCreateTableString()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The command used to create a table, usually create table.
        Overrides:
        getCreateTableString in class Dialect
        Returns:
        The command used to create a table.

      • getAddColumnString

        public String getAddColumnString()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The subcommand of the alter table command used to add a column to a table, usually add column or add.
        Overrides:
        getAddColumnString in class Dialect
        Returns:
        The add column fragment.

      • getAddColumnSuffixString

        public String getAddColumnSuffixString()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The syntax for the suffix used to add a column to a table.
        Overrides:
        getAddColumnSuffixString in class Dialect
        Returns:
        The suffix of the add column fragment.

      • getCascadeConstraintsString

        public String getCascadeConstraintsString()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The keyword that specifies that a drop table operation should be cascaded to its constraints, typically " cascade" where the leading space is required, or the empty string if there is no such keyword in this dialect.
        Overrides:
        getCascadeConstraintsString in class Dialect
        Returns:
        The cascade drop keyword, if any, with a leading space

      • getCurrentTimestampSelectString

        public String getCurrentTimestampSelectString()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The command used to retrieve the current timestamp from the database.
        Overrides:
        getCurrentTimestampSelectString in class Dialect

      • getForUpdateString

        public String getForUpdateString​(String aliases)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Get the FOR UPDATE OF column_list fragment appropriate for this dialect, given the aliases of the columns to be write locked.
        Overrides:
        getForUpdateString in class Dialect
        Parameters:
        aliases - The columns to be write locked.
        Returns:
        The appropriate FOR UPDATE OF column_list clause string.

      • getForUpdateString

        public String getForUpdateString​(String aliases,
                                 LockOptions lockOptions)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Get the FOR UPDATE OF or FOR SHARE OF fragment appropriate for this dialect, given the aliases of the columns to be locked.
        Overrides:
        getForUpdateString in class Dialect
        Parameters:
        aliases - The columns to be locked.
        lockOptions - the lock options to apply
        Returns:
        The appropriate FOR UPDATE OF column_list clause string.

      • getForUpdateNowaitString

        public String getForUpdateNowaitString()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Retrieves the FOR UPDATE NOWAIT syntax specific to this dialect.
        Overrides:
        getForUpdateNowaitString in class Dialect
        Returns:
        The appropriate FOR UPDATE NOWAIT clause string.

      • getQuerySequencesString

        public String getQuerySequencesString()
        Deprecated, for removal: This API element is subject to removal in a future version.
        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.

      • registerDefaultKeywords

        protected void registerDefaultKeywords()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Register the reserved words of ANSI-standard SQL as keywords.
        Overrides:
        registerDefaultKeywords in class Dialect
        See Also:
        AnsiSqlKeywords

      • supportsColumnCheck

        public boolean supportsColumnCheck()
        Deprecated, for removal: This API element is subject to removal in a future version.
        HANA currently does not support check constraints.
        Overrides:
        supportsColumnCheck in class Dialect
        Returns:
        True if column-level check constraints are supported; false otherwise.

      • supportsCurrentTimestampSelection

        public boolean supportsCurrentTimestampSelection()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect support some way to retrieve the current timestamp value from the database?
        Overrides:
        supportsCurrentTimestampSelection in class Dialect
        Returns:
        True if the current timestamp can be retrieved; false otherwise.

      • doesRoundTemporalOnOverflow

        public boolean doesRoundTemporalOnOverflow()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect round a temporal when converting from a precision higher to a lower one?
        Overrides:
        doesRoundTemporalOnOverflow in class Dialect
        Returns:
        true if rounding is applied, false if truncation is applied

      • supportsExistsInSelect

        public boolean supportsExistsInSelect()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does the dialect support an exists statement in the select clause?
        Overrides:
        supportsExistsInSelect in class Dialect
        Returns:
        True if exists checks are allowed in the select clause; false otherwise.

      • supportsExpectedLobUsagePattern

        public boolean supportsExpectedLobUsagePattern()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        "Expected" LOB usage pattern is such that I can perform an insert via prepared statement with a parameter binding for a LOB value without crazy casting to JDBC driver implementation-specific classes.
        Overrides:
        supportsExpectedLobUsagePattern in class Dialect
        Returns:
        True if normal LOB usage patterns can be used with this driver; false if driver-specific hookiness needs to be applied.

      • supportsUnboundedLobLocatorMaterialization

        public boolean supportsUnboundedLobLocatorMaterialization()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Is it supported to materialize a LOB locator outside the transaction in which it was created?
        Overrides:
        supportsUnboundedLobLocatorMaterialization in class Dialect
        Returns:
        True if unbounded materialization is supported; false otherwise.

      • supportsTableCheck

        public boolean supportsTableCheck()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect support table-level check constraints?
        Overrides:
        supportsTableCheck in class Dialect
        Returns:
        True if table-level check constraints are supported; false otherwise.

      • supportsTupleDistinctCounts

        public boolean supportsTupleDistinctCounts()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect support count(distinct a,b)?
        Overrides:
        supportsTupleDistinctCounts in class Dialect
        Returns:
        True if the database supports counting distinct tuples; false otherwise.

      • dropConstraints

        public boolean dropConstraints()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Do we need to drop constraints before dropping tables in this dialect?
        Overrides:
        dropConstraints in class Dialect
        Returns:
        True if constraints must be dropped prior to dropping the table; false otherwise.

      • getMaxAliasLength

        public int getMaxAliasLength()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        What is the maximum length Hibernate can use for generated aliases?
        Overrides:
        getMaxAliasLength in class Dialect
        Returns:
        The maximum length.

      • getMaxIdentifierLength

        public int getMaxIdentifierLength()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        What is the maximum identifier length supported by this dialect?
        Overrides:
        getMaxIdentifierLength in class Dialect
        Returns:
        The maximum length.

      • getSelectGUIDString

        public String getSelectGUIDString()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Get the command used to select a GUID from the database.

        Optional operation.

        Overrides:
        getSelectGUIDString in class Dialect
        Returns:
        The appropriate command.

      • getCurrentSchemaCommand

        public String getCurrentSchemaCommand()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Get the SQL command used to retrieve the current schema name.

        Works in conjunction with Dialect.getSchemaNameResolver(), unless the resulting SchemaNameResolver does not need this information. For example, a custom implementation might make use of the Java 1.7 Connection.getSchema() method.

        Overrides:
        getCurrentSchemaCommand in class Dialect
        Returns:
        The current schema retrieval SQL

      • getForUpdateNowaitString

        public String getForUpdateNowaitString​(String aliases)
        Deprecated, for removal: This API element is subject to removal in a future version.
        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 Dialect
        Parameters:
        aliases - The columns to be write locked.
        Returns:
        The appropriate FOR UPDATE OF colunm_list NOWAIT clause string.

      • getReadLockString

        public String getReadLockString​(int timeout)
        Deprecated, for removal: This API element is subject to removal in a future version.
        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 Dialect.getForUpdateString().

        Overrides:
        getReadLockString in class Dialect
        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)
        Deprecated, for removal: This API element is subject to removal in a future version.
        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 Dialect.getForUpdateString().

        Overrides:
        getReadLockString in class Dialect
        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)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Get the string to append to SELECT statements to acquire pessimistic WRITE locks for this dialect.

        Location of the returned string is treated the same as Dialect.getForUpdateString().

        Overrides:
        getWriteLockString in class Dialect
        Parameters:
        timeout - in milliseconds, -1 for indefinite wait and 0 for no wait.
        Returns:
        The appropriate LOCK clause string.

      • getWriteLockString

        public String getWriteLockString​(String aliases,
                                 int timeout)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        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 returned string is treated the same as Dialect.getForUpdateString().

        Overrides:
        getWriteLockString in class Dialect
        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.

      • getQueryHintString

        public String getQueryHintString​(String query,
                                 List<String> hints)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Apply a hint to the given SQL query.

        The entire query is provided, allowing full control over the placement and syntax of the hint.

        By default, ignore the hint and simply return the query.

        Overrides:
        getQueryHintString in class Dialect
        Parameters:
        query - The query to which to apply the hint.
        hints - The hints to apply
        Returns:
        The modified SQL

      • getTableComment

        public String getTableComment​(String comment)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Get the comment into a form supported for table definition.
        Overrides:
        getTableComment in class Dialect
        Parameters:
        comment - The comment to apply
        Returns:
        The comment fragment

      • getColumnComment

        public String getColumnComment​(String comment)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Get the comment into a form supported for column definition.
        Overrides:
        getColumnComment in class Dialect
        Parameters:
        comment - The comment to apply
        Returns:
        The comment fragment

      • supportsCommentOn

        public boolean supportsCommentOn()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect support commenting on tables and columns?
        Overrides:
        supportsCommentOn in class Dialect
        Returns:
        true if commenting is supported

      • supportsPartitionBy

        public boolean supportsPartitionBy()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does is dialect support partition by?
        Overrides:
        supportsPartitionBy in class Dialect

      • contributeTypes

        public void contributeTypes​(TypeContributions typeContributions,
                            ServiceRegistry serviceRegistry)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        A callback which allows the Dialect to contribute types.
        Overrides:
        contributeTypes in class Dialect
        Parameters:
        typeContributions - Callback to contribute the types
        serviceRegistry - The service registry

      • appendBooleanValueString

        public void appendBooleanValueString​(SqlAppender appender,
                                     boolean bool)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Append the SQL literal expression representing the given boolean value to the given SqlAppender.
        Overrides:
        appendBooleanValueString in class Dialect
        Parameters:
        appender - The SqlAppender to append the literal expression to
        bool - The boolean value

      • getTableExporter

        public Exporter<Table> getTableExporter()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Get an Exporter for Tables, usually StandardTableExporter.
        Overrides:
        getTableExporter in class Dialect

      • registerResultSetOutParameter

        public int registerResultSetOutParameter​(CallableStatement statement,
                                         int position)
                                  throws SQLException
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Registers a parameter capable of returning a ResultSet by position, either an OUT parameter, or a REF_CURSOR parameter as defined in Java 8.
        Overrides:
        registerResultSetOutParameter in class Dialect
        Parameters:
        statement - The callable statement.
        position - The bind position at which to register the output param.
        Returns:
        The number of (contiguous) bind positions used.
        Throws:
        SQLException - Indicates problems registering the param.

      • registerResultSetOutParameter

        public int registerResultSetOutParameter​(CallableStatement statement,
                                         String name)
                                  throws SQLException
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Registers a parameter capable of returning a ResultSet by name, either an OUT parameter, or a REF_CURSOR parameter as defined in Java 8.
        Overrides:
        registerResultSetOutParameter in class Dialect
        Parameters:
        statement - The callable statement.
        name - The parameter name (for drivers which support named parameters).
        Returns:
        The number of (contiguous) bind positions used.
        Throws:
        SQLException - Indicates problems registering the param.

      • supportsOffsetInSubquery

        public boolean supportsOffsetInSubquery()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect support offset in subqueries?

        For example: 

         select * from Table1 where col1 in (select col1 from Table2 order by col2 limit 1 offset 1)
        Overrides:
        supportsOffsetInSubquery in class Dialect
        Returns:
        true if it does

      • supportsWindowFunctions

        public boolean supportsWindowFunctions()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect support window functions like row_number() over (..)?
        Overrides:
        supportsWindowFunctions in class Dialect
        Returns:
        true if the underlying database supports window functions, false otherwise. The default is false.

      • supportsLateral

        public boolean supportsLateral()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect support the SQL lateral keyword or a proprietary alternative?
        Overrides:
        supportsLateral in class Dialect
        Returns:
        true if the underlying database supports lateral, false otherwise. The default is false.

      • supportsNoWait

        public boolean supportsNoWait()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect support NO_WAIT timeout.
        Overrides:
        supportsNoWait in class Dialect
        Returns:
        true if NO_WAIT is supported

      • supportsNoColumnsInsert

        public boolean supportsNoColumnsInsert()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Is the INSERT statement is allowed to contain no columns?
        Overrides:
        supportsNoColumnsInsert in class Dialect
        Returns:
        if this dialect supports no-column INSERT.

      • supportsOrderByInSubquery

        public boolean supportsOrderByInSubquery()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Does this dialect support the order by clause in subqueries?

        For example: 

         select * from Table1 where col1 in (select col1 from Table2 order by col2 limit 1)
        Overrides:
        supportsOrderByInSubquery in class Dialect
        Returns:
        true if it does

      • getNullOrdering

        public NullOrdering getNullOrdering()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Returns the default ordering of null.
        Overrides:
        getNullOrdering in class Dialect

      • appendDatetimeFormat

        public void appendDatetimeFormat​(SqlAppender appender,
                                 String format)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Translate the given datetime format string from the pattern language defined by Java's DateTimeFormatter to whatever pattern language is understood by the native datetime formatting function for this database (often the to_char() function).

        Since it's never possible to translate every pattern letter sequences understood by DateTimeFormatter, only the following subset of pattern letters is accepted by Hibernate:

        • G: era
        • y: year of era
        • Y: year of week-based year
        • M: month of year
        • w: week of week-based year (ISO week number)
        • W: week of month
        • E: day of week (name)
        • e: day of week (number)
        • d: day of month
        • D: day of year
        • a: AM/PM
        • H: hour of day (24 hour time)
        • h: hour of AM/PM (12 hour time)
        • m: minutes
        • s: seconds
        • z,Z,x: timezone offset

        In addition, punctuation characters and single-quoted literal strings are accepted.

        Appends a pattern accepted by the function that formats dates and times in this dialect to a SQL fragment that is being constructed.

        Overrides:
        appendDatetimeFormat in class Dialect

      • supportsFractionalTimestampArithmetic

        public boolean supportsFractionalTimestampArithmetic()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Whether the database supports adding a fractional interval to a timestamp, for example timestamp + 0.5 second.
        Overrides:
        supportsFractionalTimestampArithmetic in class Dialect

      • getFractionalSecondPrecisionInNanos

        public long getFractionalSecondPrecisionInNanos()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The "native" precision for arithmetic with datetimes and day-to-second durations. Datetime differences will be calculated with this precision except when a precision is explicitly specified as a TemporalUnit.

        Usually 1 (nanoseconds), 1_000 (microseconds), or 1_000_000 (milliseconds).

        Overrides:
        getFractionalSecondPrecisionInNanos in class Dialect
        Returns:
        the precision, specified as a quantity of nanoseconds
        See Also:
        TemporalUnit.NATIVE

      • timestampaddPattern

        public String timestampaddPattern​(TemporalUnit unit,
                                  TemporalType temporalType,
                                  IntervalType intervalType)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Obtain a pattern for the SQL equivalent to a timestampadd() function call. The resulting pattern must contain ?1, ?2, and ?3 placeholders for the arguments.
        Overrides:
        timestampaddPattern in class Dialect
        Parameters:
        unit - The unit to add to the temporal
        temporalType - The type of the temporal
        intervalType - The type of interval to add or null if it's not a native interval

      • timestampdiffPattern

        public String timestampdiffPattern​(TemporalUnit unit,
                                   TemporalType fromTemporalType,
                                   TemporalType toTemporalType)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        Obtain a pattern for the SQL equivalent to a timestampdiff() function call. The resulting pattern must contain ?1, ?2, and ?3 placeholders for the arguments.
        Overrides:
        timestampdiffPattern in class Dialect
        Parameters:
        unit - the first argument
        fromTemporalType - true if the first argument is a timestamp, false if a date
        toTemporalType - true if the second argument is

      • generatedAs

        public String generatedAs​(String generatedAs)
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The generated as clause, or similar, for generated column declarations in DDL statements.
        Overrides:
        generatedAs in class Dialect
        Parameters:
        generatedAs - a SQL expression used to generate the column value
        Returns:
        The generated as clause containing the given expression

      • isUseUnicodeStringTypes

        public boolean isUseUnicodeStringTypes()
        Deprecated, for removal: This API element is subject to removal in a future version.

      • supportsAsciiStringTypes

        protected boolean supportsAsciiStringTypes()
        Deprecated, for removal: This API element is subject to removal in a future version.

      • useUnicodeStringTypesDefault

        protected Boolean useUnicodeStringTypesDefault()
        Deprecated, for removal: This API element is subject to removal in a future version.

      • getSupportedTemporaryTableKind

        public TemporaryTableKind getSupportedTemporaryTableKind()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The kind of temporary tables that are supported on this database.
        Overrides:
        getSupportedTemporaryTableKind in class Dialect

      • getTemporaryTableCreateOptions

        public String getTemporaryTableCreateOptions()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        An arbitrary SQL fragment appended to the end of the statement to create a temporary table, specifying dialect-specific options, or null if there are no options to specify.
        Overrides:
        getTemporaryTableCreateOptions in class Dialect

      • getTemporaryTableCreateCommand

        public String getTemporaryTableCreateCommand()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The command to create a temporary table.
        Overrides:
        getTemporaryTableCreateCommand in class Dialect

      • getTemporaryTableTruncateCommand

        public String getTemporaryTableTruncateCommand()
        Deprecated, for removal: This API element is subject to removal in a future version.
        Description copied from class: Dialect
        The command to truncate a temporary table.
        Overrides:
        getTemporaryTableTruncateCommand in class Dialect