Package org.hibernate.dialect.identity
Class DB2IdentityColumnSupport
- java.lang.Object
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- org.hibernate.dialect.identity.IdentityColumnSupportImpl
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- org.hibernate.dialect.identity.DB2IdentityColumnSupport
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- All Implemented Interfaces:
IdentityColumnSupport
- Direct Known Subclasses:
DB2zIdentityColumnSupport
public class DB2IdentityColumnSupport extends IdentityColumnSupportImpl
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Field Summary
Fields Modifier and Type Field Description static DB2IdentityColumnSupport
INSTANCE
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Constructor Summary
Constructors Constructor Description DB2IdentityColumnSupport()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description String
appendIdentitySelectToInsert(String identityColumnName, String insertString)
Provided weIdentityColumnSupport.supportsInsertSelectIdentity()
, then attach the "select identity" clause to the insert statement.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 tableboolean
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 org.hibernate.dialect.identity.IdentityColumnSupportImpl
appendIdentitySelectToInsert, buildGetGeneratedKeysDelegate, hasDataTypeInIdentityColumn
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.hibernate.dialect.identity.IdentityColumnSupport
hasIdentityInsertKeyword
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Field Detail
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INSTANCE
public static final DB2IdentityColumnSupport INSTANCE
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Method Detail
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supportsIdentityColumns
public boolean supportsIdentityColumns()
Description copied from interface:IdentityColumnSupport
Does this dialect support identity column key generation?- Specified by:
supportsIdentityColumns
in interfaceIdentityColumnSupport
- Overrides:
supportsIdentityColumns
in classIdentityColumnSupportImpl
- Returns:
- True if IDENTITY columns are supported; false otherwise.
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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 interfaceIdentityColumnSupport
- Overrides:
supportsInsertSelectIdentity
in classIdentityColumnSupportImpl
- Returns:
- True if the dialect supports selecting the just generated IDENTITY in the insert statement.
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getIdentitySelectString
public String getIdentitySelectString(String table, String column, int type)
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 interfaceIdentityColumnSupport
- Overrides:
getIdentitySelectString
in classIdentityColumnSupportImpl
- Parameters:
table
- The table into which the insert was donecolumn
- The PK column.type
- TheTypes
type code.- Returns:
- The appropriate select command
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getIdentityColumnString
public String getIdentityColumnString(int type)
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 interfaceIdentityColumnSupport
- Overrides:
getIdentityColumnString
in classIdentityColumnSupportImpl
- Parameters:
type
- TheTypes
type code.- Returns:
- The appropriate DDL fragment.
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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 interfaceIdentityColumnSupport
- Overrides:
getIdentityInsertString
in classIdentityColumnSupportImpl
- Returns:
- The appropriate keyword.
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appendIdentitySelectToInsert
public String appendIdentitySelectToInsert(String identityColumnName, String insertString)
Description copied from interface:IdentityColumnSupport
Provided weIdentityColumnSupport.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.- Parameters:
identityColumnName
- The name of the identity columninsertString
- The insert command- Returns:
- The insert command with any necessary identity select clause attached.
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