Package org.hibernate.type.descriptor.jdbc

Interface JdbcType

All Superinterfaces:

Serializable

All Known Subinterfaces:

AdjustableJdbcType, AggregateJdbcType

All Known Implementing Classes:

AbstractCastingPostGISJdbcType, AbstractHANADialect.HANABlobType, AbstractPostGISJdbcType, AbstractPostgreSQLJsonPGObjectType, AbstractPostgreSQLStructJdbcType, AbstractSqlServerGISType, ArrayJdbcType, BigIntJdbcType, BinaryJdbcType, BlobJdbcType, BooleanJdbcType, CharJdbcType, ClobJdbcType, DateJdbcType, DB2GeometryType, DB2StructJdbcType, DecimalJdbcType, DoubleJdbcType, DurationJdbcType, EnumJdbcType, FloatJdbcType, H2DurationIntervalSecondJdbcType, H2FormatJsonJdbcType, H2GISGeometryType, H2JsonJdbcType, HANAGeometryType, HANAPointType, InstantAsTimestampJdbcType, InstantAsTimestampWithTimeZoneJdbcType, InstantJdbcType, IntegerJdbcType, JsonAsStringJdbcType, JsonJdbcType, LongNVarcharJdbcType, LongVarbinaryJdbcType, LongVarcharJdbcType, MySQLCastingJsonJdbcType, MySQLEnumJdbcType, MySQLGeometryJdbcType, NCharJdbcType, NClobJdbcType, NullJdbcType, NumericJdbcType, NVarcharJdbcType, ObjectJdbcType, ObjectNullAsBinaryTypeJdbcType, ObjectNullAsNullTypeJdbcType, ObjectNullResolvingJdbcType, OracleArrayJdbcType, OracleBooleanJdbcType, OracleJsonBlobJdbcType, OracleJsonJdbcType, OracleNestedTableJdbcType, OracleReflectionStructJdbcType, OracleStructJdbcType, OracleXmlJdbcType, PGCastingGeographyJdbcType, PGCastingGeometryJdbcType, PGGeographyJdbcType, PGGeometryJdbcType, PostgreSQLCastingInetJdbcType, PostgreSQLCastingIntervalSecondJdbcType, PostgreSQLCastingJsonJdbcType, PostgreSQLEnumJdbcType, PostgreSQLInetJdbcType, PostgreSQLIntervalSecondJdbcType, PostgreSQLJsonPGObjectJsonbType, PostgreSQLJsonPGObjectJsonType, PostgreSQLStructCastingJdbcType, PostgreSQLStructPGObjectJdbcType, PostgreSQLUUIDJdbcType, RealJdbcType, RowIdJdbcType, SDOGeometryType, SmallIntJdbcType, SqlServerGeographyType, SqlServerGeometryType, StructJdbcType, TimeAsTimestampWithTimeZoneJdbcType, TimeJdbcType, TimestampJdbcType, TimestampUtcAsInstantJdbcType, TimestampUtcAsJdbcTimestampJdbcType, TimestampUtcAsOffsetDateTimeJdbcType, TimestampWithTimeZoneJdbcType, TimeUtcAsJdbcTimeJdbcType, TimeUtcAsOffsetTimeJdbcType, TimeWithTimeZoneJdbcType, TinyIntAsSmallIntJdbcType, TinyIntJdbcType, UserTypeSqlTypeAdapter, UUIDJdbcType, VarbinaryJdbcType, VarcharJdbcType, VarcharUUIDJdbcType, XmlAsStringJdbcType, XmlJdbcType

public interface JdbcType
extends Serializable

Descriptor for the SQL/JDBC side of a value mapping. A JdbcType is always coupled with a JavaType to describe the typing aspects of an attribute mapping from Java to JDBC.

An instance of this type need not correspond directly to a SQL column type on a particular database. Rather, a JdbcType defines how values are read from and written to JDBC. Therefore, implementations of this interface map more directly to the JDBC type codes defined by Types and SqlTypes.

Every JdbcType has a ValueBinder and a ValueExtractor which, respectively, do the hard work of writing values to parameters of a JDBC PreparedStatement, and reading values from the columns of a JDBC ResultSet.

The JDBC type code ultimately determines, in collaboration with the SQL dialect, the SQL column type generated by Hibernate's schema export tool.

A JDBC type may be selected when mapping an entity attribute using the JdbcType annotation, or, indirectly, using the JdbcTypeCode annotation.

Custom implementations should be registered with the JdbcTypeRegistry at startup. The built-in implementations are registered automatically.

Method Summary

Modifier and Type	Method	Description
default void	addAuxiliaryDatabaseObjects(JavaType<?> javaType, Size columnSize, Database database, TypeConfiguration typeConfiguration)
default void	appendWriteExpression(String writeExpression, SqlAppender appender, Dialect dialect)	Append the write expression wrapped in a way to be able to write values with this JdbcType's ValueBinder.
<X> ValueBinder<X>	getBinder(JavaType<X> javaType)	Obtain a binder object capable of binding values of the given Java type to parameters of a JDBC PreparedStatement.
default CastType	getCastType()
static CastType	getCastType(int typeCode)
default String	getCheckCondition(String columnName, JavaType<?> javaType, BasicValueConverter<?,?> converter, Dialect dialect)	The check constraint that should be added to the column definition in generated DDL.
default int	getDdlTypeCode()	A JDBC type code that identifies the SQL column type to be used for schema generation.
default int	getDefaultSqlTypeCode()	A JDBC type code that identifies the SQL column type.
default String	getExtraCreateTableInfo(JavaType<?> javaType, String columnName, String tableName, Database database)
<X> ValueExtractor<X>	getExtractor(JavaType<X> javaType)	Obtain an extractor object capable of extracting values of the given Java type from a JDBC ResultSet.
default String	getFriendlyName()	A "friendly" name for use in logging
default <T> JdbcLiteralFormatter<T>	getJdbcLiteralFormatter(JavaType<T> javaType)	Obtain a formatter object capable of rendering values of the given Java type as SQL literals of the type represented by this object.
default <T> JavaType<T>	getJdbcRecommendedJavaTypeMapping(Integer precision, Integer scale, TypeConfiguration typeConfiguration)
int	getJdbcTypeCode()	The JDBC type code used when interacting with JDBC APIs.
default Class<?>	getPreferredJavaTypeClass(WrapperOptions options)	The Java type class that is preferred by the binder or null.
default boolean	isBinary()
default boolean	isDecimal()
default boolean	isDuration()
default boolean	isFloat()
default boolean	isInteger()
default boolean	isInterval()
default boolean	isLob()
static boolean	isLob(int jdbcTypeCode)
default boolean	isLobOrLong()
static boolean	isLobOrLong(int jdbcTypeCode)
default boolean	isNationalized()
static boolean	isNationalized(int jdbcTypeCode)
default boolean	isNumber()
default boolean	isString()
default boolean	isStringLike()
default boolean	isTemporal()
default void	registerOutParameter(CallableStatement callableStatement, int index)	Register the OUT parameter on the CallableStatement with the given index for this JdbcType.
default void	registerOutParameter(CallableStatement callableStatement, String name)	Register the OUT parameter on the CallableStatement with the given name for this JdbcType.
default Expression	wrapTopLevelSelectionExpression(Expression expression)	Wraps the top level selection expression to be able to read values with this JdbcType's ValueExtractor.
default String	wrapWriteExpression(String writeExpression, Dialect dialect)	Wraps the write expression to be able to write values with this JdbcType's ValueBinder.

Method Detail

getFriendlyName

default String getFriendlyName()

A "friendly" name for use in logging

getJdbcTypeCode

int getJdbcTypeCode()

The JDBC type code used when interacting with JDBC APIs.

For example, it's used when calling PreparedStatement.setNull(int, int).

Returns:

a JDBC type code

getDefaultSqlTypeCode

default int getDefaultSqlTypeCode()

A JDBC type code that identifies the SQL column type.

This value might be different from getDdlTypeCode() if the actual type e.g. JSON is emulated through a type like CLOB.

Returns:

a JDBC type code

getDdlTypeCode

default int getDdlTypeCode()

A JDBC type code that identifies the SQL column type to be used for schema generation.

This value is passed to DdlTypeRegistry.getTypeName(int, Size, Type) to obtain the SQL column type.

Returns:

a JDBC type code

Since:

6.2

getJdbcRecommendedJavaTypeMapping

default <T> JavaType<T> getJdbcRecommendedJavaTypeMapping(Integer precision,
                                                          Integer scale,
                                                          TypeConfiguration typeConfiguration)

getJdbcLiteralFormatter

default <T> JdbcLiteralFormatter<T> getJdbcLiteralFormatter(JavaType<T> javaType)

Obtain a formatter object capable of rendering values of the given Java type as SQL literals of the type represented by this object.

getBinder

<X> ValueBinder<X> getBinder(JavaType<X> javaType)

Obtain a binder object capable of binding values of the given Java type to parameters of a JDBC PreparedStatement.

Parameters:

javaType - The descriptor describing the types of Java values to be bound

Returns:

The appropriate binder.

getExtractor

<X> ValueExtractor<X> getExtractor(JavaType<X> javaType)

Obtain an extractor object capable of extracting values of the given Java type from a JDBC ResultSet.

Parameters:

javaType - The descriptor describing the types of Java values to be extracted

Returns:

The appropriate extractor

getPreferredJavaTypeClass

@Incubating
default Class<?> getPreferredJavaTypeClass(WrapperOptions options)

The Java type class that is preferred by the binder or null.

getCheckCondition

default String getCheckCondition(String columnName,
                                 JavaType<?> javaType,
                                 BasicValueConverter<?,?> converter,
                                 Dialect dialect)

The check constraint that should be added to the column definition in generated DDL.

Parameters:

columnName - the name of the column

javaType - the JavaType of the mapped column

converter - the converter, if any, or null

dialect - the SQL Dialect

Returns:

a check constraint condition or null

Since:

6.2

wrapTopLevelSelectionExpression

@Incubating
default Expression wrapTopLevelSelectionExpression(Expression expression)

Wraps the top level selection expression to be able to read values with this JdbcType's ValueExtractor.

Since:

6.2

wrapWriteExpression

@Incubating
default String wrapWriteExpression(String writeExpression,
                                   Dialect dialect)

Wraps the write expression to be able to write values with this JdbcType's ValueBinder.

Since:

6.2

appendWriteExpression

@Incubating
default void appendWriteExpression(String writeExpression,
                                   SqlAppender appender,
                                   Dialect dialect)

Append the write expression wrapped in a way to be able to write values with this JdbcType's ValueBinder.

Since:

6.2

isInteger

default boolean isInteger()

isFloat

default boolean isFloat()

isDecimal

default boolean isDecimal()

isNumber

default boolean isNumber()

isBinary

default boolean isBinary()

isString

default boolean isString()

isStringLike

default boolean isStringLike()

isTemporal

default boolean isTemporal()

isLob

default boolean isLob()

isLob

static boolean isLob(int jdbcTypeCode)

isLobOrLong

default boolean isLobOrLong()

isLobOrLong

static boolean isLobOrLong(int jdbcTypeCode)

isNationalized

default boolean isNationalized()

isNationalized

static boolean isNationalized(int jdbcTypeCode)

isInterval

default boolean isInterval()

isDuration

default boolean isDuration()

getCastType

default CastType getCastType()

getCastType

static CastType getCastType(int typeCode)

registerOutParameter

default void registerOutParameter(CallableStatement callableStatement,
                                  String name)
                           throws SQLException

Register the OUT parameter on the CallableStatement with the given name for this JdbcType.

Throws:

SQLException

Since:

6.2

registerOutParameter

default void registerOutParameter(CallableStatement callableStatement,
                                  int index)
                           throws SQLException

Register the OUT parameter on the CallableStatement with the given index for this JdbcType.

Throws:

SQLException

Since:

6.2

addAuxiliaryDatabaseObjects

@Incubating
default void addAuxiliaryDatabaseObjects(JavaType<?> javaType,
                                         Size columnSize,
                                         Database database,
                                         TypeConfiguration typeConfiguration)

getExtraCreateTableInfo

@Incubating
default String getExtraCreateTableInfo(JavaType<?> javaType,
                                       String columnName,
                                       String tableName,
                                       Database database)