Package org.hibernate.dialect.identity

Class IdentityColumnSupportImpl

java.lang.Object

org.hibernate.dialect.identity.IdentityColumnSupportImpl

All Implemented Interfaces:

IdentityColumnSupport

Direct Known Subclasses:

AbstractTransactSQLIdentityColumnSupport, CockroachDBIdentityColumnSupport, DB2IdentityColumnSupport, H2IdentityColumnSupport, HANAIdentityColumnSupport, HSQLIdentityColumnSupport, MySQLIdentityColumnSupport, Oracle12cIdentityColumnSupport, PostgreSQLIdentityColumnSupport

public class IdentityColumnSupportImpl
extends Object
implements IdentityColumnSupport

Field Summary

Fields

Modifier and Type	Field	Description
static final IdentityColumnSupportImpl	INSTANCE

Constructor Summary

Constructors

Constructor	Description
IdentityColumnSupportImpl()

Method Summary

Modifier and Type	Method	Description
String	appendIdentitySelectToInsert(String insertString)	Provided we IdentityColumnSupport.supportsInsertSelectIdentity(), then attach the "select identity" clause to the insert statement.
GetGeneratedKeysDelegate	buildGetGeneratedKeysDelegate(EntityPersister persister)	The delegate for dealing with IDENTITY columns using Statement.getGeneratedKeys().
String	getIdentityColumnString(int type)	The syntax used during DDL to define a column as being an IDENTITY of a particular type.
String	getIdentityInsertString()	The keyword used to insert a generated value into an identity column (or null).
String	getIdentitySelectString(String table, String column, int type)	Get the select command to use to retrieve the last generated IDENTITY value for a particular table
boolean	hasDataTypeInIdentityColumn()	Whether this dialect have an Identity clause added to the data type or a completely separate identity data type
boolean	supportsIdentityColumns()	Does this dialect support identity column key generation?
boolean	supportsInsertSelectIdentity()	Does the dialect support some form of inserting and selecting the generated IDENTITY value all in the same statement.

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.identity.IdentityColumnSupport

appendIdentitySelectToInsert, hasIdentityInsertKeyword

Field Details

INSTANCE

public static final IdentityColumnSupportImpl INSTANCE

Constructor Details

IdentityColumnSupportImpl

public IdentityColumnSupportImpl()

Method Details

supportsIdentityColumns

public boolean supportsIdentityColumns()

Description copied from interface: IdentityColumnSupport

Does this dialect support identity column key generation?

Specified by:

supportsIdentityColumns in interface IdentityColumnSupport

Returns:

True if IDENTITY columns are supported; false otherwise.

supportsInsertSelectIdentity

public boolean supportsInsertSelectIdentity()

Description copied from interface: IdentityColumnSupport

Does the dialect support some form of inserting and selecting the generated IDENTITY value all in the same statement.

Specified by:

supportsInsertSelectIdentity in interface IdentityColumnSupport

Returns:

True if the dialect supports selecting the just generated IDENTITY in the insert statement.

hasDataTypeInIdentityColumn

public boolean hasDataTypeInIdentityColumn()

Description copied from interface: IdentityColumnSupport

Whether this dialect have an Identity clause added to the data type or a completely separate identity data type

Specified by:

hasDataTypeInIdentityColumn in interface IdentityColumnSupport

Returns:

boolean

appendIdentitySelectToInsert

public String appendIdentitySelectToInsert(String insertString)

Description copied from interface: IdentityColumnSupport

Provided we IdentityColumnSupport.supportsInsertSelectIdentity(), then attach the "select identity" clause to the insert statement.

Note, if IdentityColumnSupport.supportsInsertSelectIdentity() == false then the insert-string should be returned without modification.

Specified by:

appendIdentitySelectToInsert in interface IdentityColumnSupport

Parameters:

insertString - The insert command

Returns:

The insert command with any necessary identity select clause attached.

getIdentitySelectString

public String getIdentitySelectString(String table,
 String column,
 int type)
                               throws MappingException

Description copied from interface: IdentityColumnSupport

Get the select command to use to retrieve the last generated IDENTITY value for a particular table

Specified by:

getIdentitySelectString in interface IdentityColumnSupport

Parameters:

table - The table into which the insert was done

column - The PK column.

type - The Types type code.

Returns:

The appropriate select command

Throws:

MappingException - If IDENTITY generation is not supported.

getIdentityColumnString

public String getIdentityColumnString(int type)
                               throws MappingException

Description copied from interface: IdentityColumnSupport

The syntax used during DDL to define a column as being an IDENTITY of a particular type.

Specified by:

getIdentityColumnString in interface IdentityColumnSupport

Parameters:

type - The Types type code.

Returns:

The appropriate DDL fragment.

Throws:

MappingException - If IDENTITY generation is not supported.

getIdentityInsertString

public String getIdentityInsertString()

Description copied from interface: IdentityColumnSupport

The keyword used to insert a generated value into an identity column (or null). Need if the dialect does not support inserts that specify no column values.

Specified by:

getIdentityInsertString in interface IdentityColumnSupport

Returns:

The appropriate keyword.

buildGetGeneratedKeysDelegate

public GetGeneratedKeysDelegate buildGetGeneratedKeysDelegate(EntityPersister persister)

Description copied from interface: IdentityColumnSupport

The delegate for dealing with IDENTITY columns using Statement.getGeneratedKeys().

Specified by:

buildGetGeneratedKeysDelegate in interface IdentityColumnSupport

Parameters:

persister - The persister

Returns:

the dialect-specific GetGeneratedKeysDelegate