Package io.ebeaninternal.dbmigration.ddlgeneration.platform

Class AbstractHanaDdl

java.lang.Object

io.ebeaninternal.dbmigration.ddlgeneration.platform.PlatformDdl

io.ebeaninternal.dbmigration.ddlgeneration.platform.AbstractHanaDdl

Direct Known Subclasses:

HanaColumnStoreDdl, HanaRowStoreDdl

public abstract class AbstractHanaDdl
extends PlatformDdl

Constructor Summary

Constructors

Constructor	Description
AbstractHanaDdl(io.ebean.config.dbplatform.DatabasePlatform platform)

Method Summary

Modifier and Type	Method	Description
void	alterColumn(DdlWrite writer, AlterColumn alter)	Alter column setting (type, default value and not null constraint).
String	alterTableAddUniqueConstraint(String tableName, String uqName, String[] columns, String[] nullableColumns)	Add a unique constraint to the table.
void	alterTableDropColumn(DdlWrite writer, String tableName, String columnName)	It is rather complex to delete a column on HANA as there must not exist any foreign keys.
String	alterTableDropConstraint(String tableName, String constraintName)	Drop a unique constraint from the table.
String	alterTableDropUniqueConstraint(String tableName, String uniqueConstraintName)	Drop a unique constraint from the table (Sometimes this is an index).

Methods inherited from class io.ebeaninternal.dbmigration.ddlgeneration.platform.PlatformDdl

addColumnComment, addHistoryTable, addTableComment, addTablePartition, addTablespace, alterTableAddCheckConstraint, alterTableAddColumn, alterTableAddColumn, alterTableAddForeignKey, alterTableDropForeignKey, alterTableTablespace, asIdentityColumn, configure, convert, convertDefaultValue, createCheckConstraint, createDdlHandler, createIndex, createSequence, createWithHistory, dropHistoryTable, dropIndex, dropIndex, dropSequence, dropTable, generateEpilog, generateProlog, getCreateTableCommandPrefix, getPlatform, getUpdateNullWithDefault, inlineTableComment, isIncludeStorageEngine, isInlineComments, isInlineForeignKeys, isInlineUniqueWhenNullable, regenerateHistoryTriggers, setLockTimeout, suppressPrimaryKeyOnPartition, tableInlineForeignKey, tableStorageEngine, useIdentityType, writeTableColumns

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AbstractHanaDdl

public AbstractHanaDdl(io.ebean.config.dbplatform.DatabasePlatform platform)

Method Details

alterColumn

public void alterColumn(DdlWrite writer,
 AlterColumn alter)

Description copied from class: PlatformDdl

Alter column setting (type, default value and not null constraint).

Used by MySql, SQL Server, and HANA as these require all column attributes to be set together.

Overrides:

alterColumn in class PlatformDdl

alterTableAddUniqueConstraint

public String alterTableAddUniqueConstraint(String tableName,
 String uqName,
 String[] columns,
 String[] nullableColumns)

Description copied from class: PlatformDdl

Add a unique constraint to the table.

Overridden by MsSqlServer for specific null handling on unique constraints.

Overrides:

alterTableAddUniqueConstraint in class PlatformDdl

alterTableDropUniqueConstraint

public String alterTableDropUniqueConstraint(String tableName,
 String uniqueConstraintName)

Description copied from class: PlatformDdl

Drop a unique constraint from the table (Sometimes this is an index).

Overrides:

alterTableDropUniqueConstraint in class PlatformDdl

alterTableDropConstraint

public String alterTableDropConstraint(String tableName,
 String constraintName)

Description copied from class: PlatformDdl

Drop a unique constraint from the table.

Overrides:

alterTableDropConstraint in class PlatformDdl

alterTableDropColumn

public void alterTableDropColumn(DdlWrite writer,
 String tableName,
 String columnName)

It is rather complex to delete a column on HANA as there must not exist any foreign keys. That's why we call a user stored procedure here

Overrides:

alterTableDropColumn in class PlatformDdl