Interface Exporter<T extends Exportable>

All Known Implementing Classes:

StandardForeignKeyExporter, StandardIndexExporter, StandardSequenceExporter, StandardTableExporter, StandardUserDefinedTypeExporter

@SPI({USE,IMPLEMENT,SUPPLY})
public interface Exporter<T extends Exportable>

Exports a relational database object as SQL create and drop commands.

Implement this contract when a database requires a complete DDL operation different from Hibernate's stock exporter. Return commands in execution order and return NO_COMMANDS when no command is required. An exporter must not execute SQL or retain the per-call metadata or generation context.

Supply each database-object specialization from the corresponding Dialect method.

Since:

8.0

See Also:

• Dialect.getTableExporter()
• Dialect.getSequenceExporter()
• Dialect.getIndexExporter()
• Dialect.getForeignKeyExporter()
• Dialect.getUserDefinedTypeExporter()

API Note:

This is an ORM-centric contract.

Field Summary

Fields

Modifier and Type	Field	Description
static final String[]	NO_COMMANDS	An immutable empty command result.

Method Summary

Modifier and Type	Method	Description
String[]	getSqlCreateStrings(T exportable, Metadata metadata, SqlStringGenerationContext context)	Return the commands needed to create exportable, in execution order.
String[]	getSqlDropStrings(T exportable, Metadata metadata, SqlStringGenerationContext context)	Return the commands needed to drop exportable, in execution order.

Field Details

NO_COMMANDS

static final String[] NO_COMMANDS

An immutable empty command result.

Method Details

getSqlCreateStrings

String[] getSqlCreateStrings(T exportable,
 Metadata metadata,
 SqlStringGenerationContext context)

Return the commands needed to create exportable, in execution order.

getSqlDropStrings

String[] getSqlDropStrings(T exportable,
 Metadata metadata,
 SqlStringGenerationContext context)

Return the commands needed to drop exportable, in execution order.