org.hibernate.dialect
Class RDMSOS2200Dialect

java.lang.Object
  org.hibernate.dialect.Dialect
      org.hibernate.dialect.RDMSOS2200Dialect

public class RDMSOS2200Dialect

extends Dialect

Author:

Ploski and Hanson

Field Summary

Fields inherited from class org.hibernate.dialect.Dialect

CLOSED_QUOTE, QUOTE

Constructor Summary

RDMSOS2200Dialect()

Method Summary

CaseFragment	createCaseFragment() Create a CaseFragment for this dialect.
boolean	forUpdateOfColumns() The RDMS DB supports the 'FOR UPDATE OF' clause.
String	getAddColumnString() The syntax used to add a column to a table (optional).
String	getCascadeConstraintsString() Completely optional cascading drop clause
String	getCreateSequenceString(String sequenceName) The syntax used to create a sequence, if sequences are supported.
String	getDropSequenceString(String sequenceName) The syntax used to drop a sequence, if sequences are supported.
String	getForUpdateString() Since the RDMS-JDBC driver does not support for updates, this string is set to an empty string.
String	getLimitString(String sql, int offset, int limit)
LockingStrategy	getLockingStrategy(Lockable lockable, LockMode lockMode) Get a strategy instance which knows how to acquire a database-level lock of the specified mode for this dialect.
String	getNullColumnString() The keyword used to specify a nullable column.
String	getSequenceNextValString(String sequenceName) Generate the appropriate select statement to to retreive the next value of a sequence, if sequences are supported.
boolean	qualifyIndexName() RDMS does not support qualifing index names with the schema name.
boolean	supportsCascadeDelete() RDMS does not support Cascade Deletes.
boolean	supportsLimit() Does this Dialect have some kind of LIMIT syntax?
boolean	supportsLimitOffset() Does this dialect support an offset?
boolean	supportsOuterJoinForUpdate() Currently, RDMS-JDBC does not support ForUpdate.
boolean	supportsSequences() Does this dialect support sequences?
boolean	supportsUnionAll()
boolean	supportsUniqueConstraintInCreateAlterTable() RDMS does not support adding Unique constraints via create and alter table.
boolean	supportsVariableLimit()

Methods inherited from class org.hibernate.dialect.Dialect

appendIdentitySelectToInsert, appendLockHint, bindLimitParametersFirst, bindLimitParametersInReverseOrder, buildSQLExceptionConverter, closeQuote, createOuterJoinFragment, dropConstraints, dropTemporaryTableAfterUse, generateTemporaryTableName, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getCastTypeName, getColumnComment, getCreateSequenceStrings, getCreateTemporaryTablePostfix, getCreateTemporaryTableString, getCurrentTimestampSelectString, getCurrentTimestampSQLFunctionName, getDefaultProperties, getDialect, getDialect, getDropForeignKeyString, getDropSequenceStrings, getForUpdateNowaitString, getForUpdateNowaitString, getForUpdateString, getForUpdateString, getFunctions, getHibernateTypeName, getHibernateTypeName, getIdentityColumnString, getIdentityColumnString, getIdentityInsertString, getIdentitySelectString, getIdentitySelectString, getKeywords, getLimitString, getLowercaseFunction, getMaxAliasLength, getNativeIdentifierGeneratorClass, getNoColumnsInsertString, getQuerySequencesString, getResultSet, getSelectClauseNullString, getSelectGUIDString, getSelectSequenceNextValString, getTableComment, getTableTypeString, getTypeName, getTypeName, getViolatedConstraintNameExtracter, hasAlterTable, hasDataTypeInIdentityColumn, hasSelfReferentialForeignKeyBug, isCurrentTimestampSelectStringCallable, openQuote, performTemporaryTableDDLInIsolation, quote, registerColumnType, registerColumnType, registerFunction, registerHibernateType, registerHibernateType, registerKeyword, registerResultSetOutParameter, supportsColumnCheck, supportsCommentOn, supportsCurrentTimestampSelection, supportsIdentityColumns, supportsIfExistsAfterTableName, supportsIfExistsBeforeTableName, supportsInsertSelectIdentity, supportsNotNullUnique, supportsParametersInInsertSelect, supportsTableCheck, supportsTemporaryTables, supportsUnique, toBooleanValueString, toString, transformSelectString, useInputStreamToInsertBlob, useMaxForLimit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

RDMSOS2200Dialect

public RDMSOS2200Dialect()

Method Detail

qualifyIndexName

public boolean qualifyIndexName()

RDMS does not support qualifing index names with the schema name.

Overrides:

qualifyIndexName in class Dialect

Returns:

boolean

forUpdateOfColumns

public boolean forUpdateOfColumns()

The RDMS DB supports the 'FOR UPDATE OF' clause. However, the RDMS-JDBC driver does not support this feature, so a false is return. The base dialect also returns a false, but we will leave this over-ride in to make sure it stays false.

Overrides:

forUpdateOfColumns in class Dialect

getForUpdateString

public String getForUpdateString()

Since the RDMS-JDBC driver does not support for updates, this string is set to an empty string. Whenever, the driver does support this feature, the returned string should be " FOR UPDATE OF". Note that RDMS does not support the string 'FOR UPDATE' string.

Overrides:

getForUpdateString in class Dialect

Returns:

The appropriate FOR UPDATE clause string.

supportsUniqueConstraintInCreateAlterTable

public boolean supportsUniqueConstraintInCreateAlterTable()

RDMS does not support adding Unique constraints via create and alter table.

Overrides:

supportsUniqueConstraintInCreateAlterTable in class Dialect

Returns:

boolean

supportsCascadeDelete

public boolean supportsCascadeDelete()

RDMS does not support Cascade Deletes. Need to review this in the future when support is provided.

Overrides:

supportsCascadeDelete in class Dialect

supportsOuterJoinForUpdate

public boolean supportsOuterJoinForUpdate()

Currently, RDMS-JDBC does not support ForUpdate. Need to review this in the future when support is provided.

Overrides:

supportsOuterJoinForUpdate in class Dialect

getAddColumnString

public String getAddColumnString()

Description copied from class: Dialect

The syntax used to add a column to a table (optional).

Overrides:

getAddColumnString in class Dialect

getNullColumnString

public String getNullColumnString()

Description copied from class: Dialect

The keyword used to specify a nullable column.

Overrides:

getNullColumnString in class Dialect

Returns:

String

supportsSequences

public boolean supportsSequences()

Description copied from class: Dialect

Does this dialect support sequences?

Overrides:

supportsSequences in class Dialect

Returns:

boolean

getSequenceNextValString

public String getSequenceNextValString(String sequenceName)

Description copied from class: Dialect

Generate the appropriate select statement to to retreive the next value of a sequence, if sequences are supported.

This should be a "stand alone" select statement.

Overrides:

getSequenceNextValString in class Dialect

Parameters:

sequenceName - the name of the sequence

Returns:

String The "nextval" select string.

getCreateSequenceString

public String getCreateSequenceString(String sequenceName)

Description copied from class: Dialect

The syntax used to create a sequence, if sequences are supported.

Overrides:

getCreateSequenceString in class Dialect

Parameters:

sequenceName - the name of the sequence

Returns:

String

getDropSequenceString

public String getDropSequenceString(String sequenceName)

Description copied from class: Dialect

The syntax used to drop a sequence, if sequences are supported.

Overrides:

getDropSequenceString in class Dialect

Parameters:

sequenceName - the name of the sequence

Returns:

String

getCascadeConstraintsString

public String getCascadeConstraintsString()

Description copied from class: Dialect

Completely optional cascading drop clause

Overrides:

getCascadeConstraintsString in class Dialect

Returns:

String

createCaseFragment

public CaseFragment createCaseFragment()

Description copied from class: Dialect

Create a CaseFragment for this dialect.

Overrides:

createCaseFragment in class Dialect

Returns:

OuterJoinGenerator

supportsLimit

public boolean supportsLimit()

Description copied from class: Dialect

Does this Dialect have some kind of LIMIT syntax?

Overrides:

supportsLimit in class Dialect

supportsLimitOffset

public boolean supportsLimitOffset()

Description copied from class: Dialect

Does this dialect support an offset?

Overrides:

supportsLimitOffset in class Dialect

getLimitString

public String getLimitString(String sql,
                             int offset,
                             int limit)

Overrides:

getLimitString in class Dialect

supportsVariableLimit

public boolean supportsVariableLimit()

Overrides:

supportsVariableLimit in class Dialect

supportsUnionAll

public boolean supportsUnionAll()

Overrides:

supportsUnionAll in class Dialect

getLockingStrategy

public LockingStrategy getLockingStrategy(Lockable lockable,
                                          LockMode lockMode)

Description copied from class: Dialect

Get a strategy instance which knows how to acquire a database-level lock of the specified mode for this dialect.

Overrides:

getLockingStrategy in class Dialect

Parameters:

lockable - The persister for the entity to be locked.

lockMode - The type of lock to be acquired.

Returns:

The appropriate locking strategy.