public Class SAPDBDialect

Constructs a SAPDBDialect

Overrides org.hibernate.dialect.Dialect.createCaseFragment.

Doc from org.hibernate.dialect.Dialect.createCaseFragment.

Create a CaseFragment strategy responsible for handling this dialect's variations in how CASE statements are handled.

Returns:CaseFragment

This dialect's CaseFragment strategy.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.dropConstraints.

Doc from org.hibernate.dialect.Dialect.dropConstraints.

Do we need to drop constraints before dropping tables in this dialect?

Returns:boolean

True if constraints must be dropped prior to dropping the table; false otherwise.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getAddColumnString.

Doc from org.hibernate.dialect.Dialect.getAddColumnString.

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

Returns:String

The "add column" fragment.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getAddForeignKeyConstraintString.

Doc from org.hibernate.dialect.Dialect.getAddForeignKeyConstraintString.

The syntax used to add a foreign key constraint to a table.

Parameters

constraintName:String

The FK constraint name.

foreignKey:String[]

The names of the columns comprising the FK

referencedTable:String

The table referenced by the FK

primaryKey:String[]

The explicit columns in the referencedTable referenced by this FK.

referencesPrimaryKey:boolean

if false, constraint should be explicit about which column names the constraint refers to

Returns:String

the "add FK" fragment

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getAddForeignKeyConstraintString.

Overrides org.hibernate.dialect.Dialect.getAddPrimaryKeyConstraintString.

Doc from org.hibernate.dialect.Dialect.getAddPrimaryKeyConstraintString.

The syntax used to add a primary key constraint to a table.

Parameters

constraintName:String

The name of the PK constraint.

Returns:String

The "add PK" fragment

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getCreateSequenceString.

Doc from org.hibernate.dialect.Dialect.getCreateSequenceString.

Typically dialects which support sequences can create a sequence with a single command. This is convenience form of getCreateSequenceStrings to help facilitate that.

Dialects which support sequences and can create a sequence in a single command need *only* override this method. Dialects which support sequences but require multiple commands to create a sequence should instead override getCreateSequenceStrings.

Parameters

sequenceName:String

The name of the sequence

Returns:String

The sequence creation command

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getDefaultMultiTableBulkIdStrategy.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getDropSequenceString.

Doc from org.hibernate.dialect.Dialect.getDropSequenceString.

Typically dialects which support sequences can drop a sequence with a single command. This is convenience form of getDropSequenceStrings to help facilitate that.

Dialects which support sequences and can drop a sequence in a single command need *only* override this method. Dialects which support sequences but require multiple commands to drop a sequence should instead override getDropSequenceStrings.

Parameters

sequenceName:String

The name of the sequence

Returns:String

The sequence drop commands

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getNullColumnString.

Doc from org.hibernate.dialect.Dialect.getNullColumnString.

The keyword used to specify a nullable column.

Returns:String

String

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getQuerySequencesString.

Doc from org.hibernate.dialect.Dialect.getQuerySequencesString.

Get the select command used retrieve the names of all sequences.

Returns:String

The select command; or null if sequences are not supported.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getSelectSequenceNextValString.

Doc from org.hibernate.dialect.Dialect.getSelectSequenceNextValString.

Generate the select expression fragment that will retrieve the next value of a sequence as part of another (typically DML) statement.

This differs from getSequenceNextValString(String) in that this should return an expression usable within another statement.

Parameters

sequenceName:String

the name of the sequence

Returns:String

The "nextval" fragment.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getSequenceInformationExtractor.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.getSequenceNextValString.

Doc from org.hibernate.dialect.Dialect.getSequenceNextValString.

Generate the appropriate select statement to to retrieve the next value of a sequence.

This should be a "stand alone" select statement.

Parameters

sequenceName:String

the name of the sequence

Returns:String

String The "nextval" select string.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.supportsJdbcConnectionLobCreation.

Doc from org.hibernate.dialect.Dialect.supportsJdbcConnectionLobCreation.

Check whether the JDBC Connection supports creating LOBs via Connection#createBlob(), Connection#createNClob() or Connection#createClob().

Parameters

databaseMetaData:DatabaseMetaData

JDBC DatabaseMetaData which can be used if LOB creation is supported only starting from a given Driver version

Returns:boolean

true if LOBs can be created via the JDBC Connection.

Annotations

@Override

Overrides org.hibernate.dialect.Dialect.supportsSequences.

Doc from org.hibernate.dialect.Dialect.supportsSequences.

Does this dialect support sequences?

Returns:boolean

True if sequences supported; false otherwise.

Annotations

@Override