Package io.ebeaninternal.dbmigration.ddlgeneration.platform

Class MySqlDdl

java.lang.Object

io.ebeaninternal.dbmigration.ddlgeneration.platform.PlatformDdl

io.ebeaninternal.dbmigration.ddlgeneration.platform.MySqlDdl

Direct Known Subclasses:

MariaDbDdl

public class MySqlDdl
extends PlatformDdl

MySql specific DDL.

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
void	addColumnComment(DdlBuffer apply, String table, String column, String comment)	Add column comment as a separate statement.
void	addTableComment(DdlBuffer apply, String tableName, String tableComment)	Add table comment as a separate statement (from the create table statement).
String	alterColumnBaseAttributes(AlterColumn alter)	Alter column setting both the type and not null constraint.
String	alterColumnDefaultValue(String tableName, String columnName, String defaultValue)	Alter column setting the default value.
String	alterColumnNotnull(String tableName, String columnName, boolean notnull)	Alter a column adding or removing the not null constraint.
String	alterColumnType(String tableName, String columnName, String type)	Alter a column type.
String	alterTableAddCheckConstraint(String tableName, String checkConstraintName, String checkConstraint)	Alter table adding the check constraint.
String	alterTableDropConstraint(String tableName, String constraintName)	Drop a unique constraint from the table.
String	alterTableDropForeignKey(String tableName, String fkName)	Return the drop foreign key clause.
String	createCheckConstraint(String ckName, String checkConstraint)	Returns the check constraint.
String	dropIndex(String indexName, String tableName, boolean concurrent)	Return the drop index statement.
void	inlineTableComment(DdlBuffer apply, String tableComment)	Add an inline table comment to the create table statement.
void	lockTables(DdlBuffer buffer, Collection<String> tables)	Locks all tables for triggers that have to be updated.
void	unlockTables(DdlBuffer buffer, Collection<String> tables)	Unlocks all tables for triggers that have to be updated.

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

addHistoryTable, addTablePartition, alterTableAddColumn, alterTableAddForeignKey, alterTableAddUniqueConstraint, alterTableDropColumn, alterTableDropUniqueConstraint, asIdentityColumn, configure, convert, convertDefaultValue, createDdlHandler, createIndex, createSequence, createWithHistory, dropHistoryTable, dropIndex, dropSequence, dropTable, generateEpilog, generateProlog, getCreateTableCommandPrefix, getPlatform, getUpdateNullWithDefault, 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

MySqlDdl

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

Method Details

dropIndex

public String dropIndex(String indexName,
 String tableName,
 boolean concurrent)

Return the drop index statement.

Overrides:

dropIndex in class PlatformDdl

alterTableDropForeignKey

public String alterTableDropForeignKey(String tableName,
 String fkName)

Return the drop foreign key clause.

Overrides:

alterTableDropForeignKey in class PlatformDdl

createCheckConstraint

public String createCheckConstraint(String ckName,
 String checkConstraint)

Description copied from class: PlatformDdl

Returns the check constraint.

Overrides:

createCheckConstraint in class PlatformDdl

alterTableAddCheckConstraint

public String alterTableAddCheckConstraint(String tableName,
 String checkConstraintName,
 String checkConstraint)

Description copied from class: PlatformDdl

Alter table adding the check constraint.

Overrides:

alterTableAddCheckConstraint 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

alterColumnType

public String alterColumnType(String tableName,
 String columnName,
 String type)

Description copied from class: PlatformDdl

Alter a column type.

Note that that MySql and SQL Server instead use alterColumnBaseAttributes()

Overrides:

alterColumnType in class PlatformDdl

alterColumnNotnull

public String alterColumnNotnull(String tableName,
 String columnName,
 boolean notnull)

Description copied from class: PlatformDdl

Alter a column adding or removing the not null constraint.

Note that that MySql, SQL Server, and HANA instead use alterColumnBaseAttributes()

Overrides:

alterColumnNotnull in class PlatformDdl

alterColumnDefaultValue

public String alterColumnDefaultValue(String tableName,
 String columnName,
 String defaultValue)

Description copied from class: PlatformDdl

Alter column setting the default value.

Overrides:

alterColumnDefaultValue in class PlatformDdl

alterColumnBaseAttributes

public String alterColumnBaseAttributes(AlterColumn alter)

Description copied from class: PlatformDdl

Alter column setting both the type and not null constraint.

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

Overrides:

alterColumnBaseAttributes in class PlatformDdl

inlineTableComment

public void inlineTableComment(DdlBuffer apply,
 String tableComment)
                        throws IOException

Description copied from class: PlatformDdl

Add an inline table comment to the create table statement.

Overrides:

inlineTableComment in class PlatformDdl

Throws:

IOException

addTableComment

public void addTableComment(DdlBuffer apply,
 String tableName,
 String tableComment)
                     throws IOException

Add table comment as a separate statement (from the create table statement).

Overrides:

addTableComment in class PlatformDdl

Throws:

IOException

addColumnComment

public void addColumnComment(DdlBuffer apply,
 String table,
 String column,
 String comment)

Description copied from class: PlatformDdl

Add column comment as a separate statement.

Overrides:

addColumnComment in class PlatformDdl

lockTables

public void lockTables(DdlBuffer buffer,
 Collection<String> tables)
                throws IOException

Locks all tables for triggers that have to be updated.

Overrides:

lockTables in class PlatformDdl

Throws:

IOException

unlockTables

public void unlockTables(DdlBuffer buffer,
 Collection<String> tables)
                  throws IOException

Unlocks all tables for triggers that have to be updated.

Overrides:

unlockTables in class PlatformDdl

Throws:

IOException