Hibernate ORM - hibernate-core 6.4.4.Final · org.hibernate.dialect.unique.AlterTableUniqueDelegate

Modifier and Type	Field and Description
protected final Dialect	dialect

Access	Constructor and Description
public	AlterTableUniqueDelegate(Dialect The dialect for which we are handling unique constraints dialect)

Method Summary

Modifier and Type	Method and Description
public String	getAlterTableToAddUniqueKeyCommand(UniqueKey The `UniqueKey` instance. Contains all information about the columns uniqueKey, Metadata Access to the bootstrap mapping information metadata, SqlStringGenerationContext A context for SQL string generation context) Implements org.hibernate.dialect.unique.UniqueDelegate.getAlterTableToAddUniqueKeyCommand. Deprecated as a consequence of `Metadata` being deprecated. Get the `alter table` command used to create the given unique key constraint, or return the empty string if the constraint was already included in the `create table` statement by `getTableCreationUniqueConstraintsFragment`.
public String	getAlterTableToDropUniqueKeyCommand(UniqueKey The `UniqueKey` instance. Contains all information about the columns uniqueKey, Metadata Access to the bootstrap mapping information metadata, SqlStringGenerationContext A context for SQL string generation context) Implements org.hibernate.dialect.unique.UniqueDelegate.getAlterTableToDropUniqueKeyCommand. Deprecated as a consequence of `Metadata` being deprecated. Get the `alter table` command used to drop the given unique key which was previously created by `getAlterTableToAddUniqueKeyCommand`.
public String	getColumnDefinitionUniquenessFragment(Column The column to which to apply the unique column, SqlStringGenerationContext A context for SQL string generation context) Implements org.hibernate.dialect.unique.UniqueDelegate.getColumnDefinitionUniquenessFragment. Get the SQL fragment used to make the given column unique as part of its column definition, usually just `" unique"`, or return an empty string if uniqueness does not belong in the column definition.
public String	getTableCreationUniqueConstraintsFragment(Table The table for which to generate the unique constraints fragment table, SqlStringGenerationContext A context for SQL string generation context) Implements org.hibernate.dialect.unique.UniqueDelegate.getTableCreationUniqueConstraintsFragment. Get the SQL fragment used to specify the unique constraints on the given table as part of the `create table` command, with a leading comma, usually something like: `, unique(x,y), constraint abc unique(a,b,c)`
protected String	uniqueConstraintSql(UniqueKey uniqueKey)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

dialect	back to summary
protected final Dialect dialect

AlterTableUniqueDelegate	back to summary
public AlterTableUniqueDelegate(Dialect dialect) Parameters dialect:Dialect The dialect for which we are handling unique constraints

Method Detail

getAlterTableToAddUniqueKeyCommand back to summary

public String getAlterTableToAddUniqueKeyCommand(UniqueKey uniqueKey, Metadata metadata, SqlStringGenerationContext context)

Implements org.hibernate.dialect.unique.UniqueDelegate.getAlterTableToAddUniqueKeyCommand.

Doc from org.hibernate.dialect.unique.UniqueDelegate.getAlterTableToAddUniqueKeyCommand.

Deprecated

as a consequence of Metadata being deprecated. See corresponding docs for further information.

Get the alter table command used to create the given unique key constraint, or return the empty string if the constraint was already included in the create table statement by getTableCreationUniqueConstraintsFragment.

Parameters

uniqueKey:UniqueKey: The UniqueKey instance. Contains all information about the columns
metadata:Metadata: Access to the bootstrap mapping information
context:SqlStringGenerationContext: A context for SQL string generation

Returns:String

The alter table command

Annotations

@Override

getAlterTableToDropUniqueKeyCommand back to summary

public String getAlterTableToDropUniqueKeyCommand(UniqueKey uniqueKey, Metadata metadata, SqlStringGenerationContext context)

Implements org.hibernate.dialect.unique.UniqueDelegate.getAlterTableToDropUniqueKeyCommand.

Doc from org.hibernate.dialect.unique.UniqueDelegate.getAlterTableToDropUniqueKeyCommand.

Deprecated

as a consequence of Metadata being deprecated. See corresponding docs for further information.

Get the alter table command used to drop the given unique key which was previously created by getAlterTableToAddUniqueKeyCommand.

Parameters

uniqueKey:UniqueKey: The UniqueKey instance. Contains all information about the columns
metadata:Metadata: Access to the bootstrap mapping information
context:SqlStringGenerationContext: A context for SQL string generation

Returns:String

The alter table command

Annotations

@Override

getColumnDefinitionUniquenessFragment back to summary

getColumnDefinitionUniquenessFragment	back to summary
public String getColumnDefinitionUniquenessFragment(Column column, SqlStringGenerationContext context) Implements org.hibernate.dialect.unique.UniqueDelegate.getColumnDefinitionUniquenessFragment. Doc from org.hibernate.dialect.unique.UniqueDelegate.getColumnDefinitionUniquenessFragment. Get the SQL fragment used to make the given column unique as part of its column definition, usually just `" unique"`, or return an empty string if uniqueness does not belong in the column definition. This is for handling single columns explicitly marked unique, not for dealing with unique keys. Parameters column:Column The column to which to apply the unique context:SqlStringGenerationContext A context for SQL string generation Returns:String The fragment (usually "unique"), empty string indicates the uniqueness will be indicated using a different approach Annotations @Override

public String getColumnDefinitionUniquenessFragment(Column column, SqlStringGenerationContext context)

Implements org.hibernate.dialect.unique.UniqueDelegate.getColumnDefinitionUniquenessFragment.

Doc from org.hibernate.dialect.unique.UniqueDelegate.getColumnDefinitionUniquenessFragment.

Get the SQL fragment used to make the given column unique as part of its column definition, usually just " unique", or return an empty string if uniqueness does not belong in the column definition.

This is for handling single columns explicitly marked unique, not for dealing with unique keys.

Parameters

column:Column: The column to which to apply the unique
context:SqlStringGenerationContext: A context for SQL string generation

Returns:String

The fragment (usually "unique"), empty string indicates the uniqueness will be indicated using a different approach

Annotations

@Override

getTableCreationUniqueConstraintsFragment back to summary

getTableCreationUniqueConstraintsFragment	back to summary
public String getTableCreationUniqueConstraintsFragment(Table table, SqlStringGenerationContext context) Implements org.hibernate.dialect.unique.UniqueDelegate.getTableCreationUniqueConstraintsFragment. Doc from org.hibernate.dialect.unique.UniqueDelegate.getTableCreationUniqueConstraintsFragment. Get the SQL fragment used to specify the unique constraints on the given table as part of the `create table` command, with a leading comma, usually something like: `, unique(x,y), constraint abc unique(a,b,c)` or return an empty string if there are no unique constraints or if the unique constraints do not belong in the table definition. The implementation should iterate over the unique keys of the given table by calling `org.hibernate.mapping.Table#getUniqueKeys()` and generate a fragment which includes all the unique key declarations. Parameters table:Table The table for which to generate the unique constraints fragment context:SqlStringGenerationContext A context for SQL string generation Returns:String The fragment, typically in the form `", unique(col1, col2), unique(col20)"`. The leading comma is important! Annotations @Override

public String getTableCreationUniqueConstraintsFragment(Table table, SqlStringGenerationContext context)

Implements org.hibernate.dialect.unique.UniqueDelegate.getTableCreationUniqueConstraintsFragment.

Doc from org.hibernate.dialect.unique.UniqueDelegate.getTableCreationUniqueConstraintsFragment.

Get the SQL fragment used to specify the unique constraints on the given table as part of the create table command, with a leading comma, usually something like:

, unique(x,y), constraint abc unique(a,b,c)

or return an empty string if there are no unique constraints or if the unique constraints do not belong in the table definition.

The implementation should iterate over the unique keys of the given table by calling org.hibernate.mapping.Table#getUniqueKeys() and generate a fragment which includes all the unique key declarations.

Parameters

table:Table: The table for which to generate the unique constraints fragment
context:SqlStringGenerationContext: A context for SQL string generation

Returns:String

The fragment, typically in the form ", unique(col1, col2), unique(col20)". The leading comma is important!

Annotations

@Override

uniqueConstraintSql	back to summary
protected String uniqueConstraintSql(UniqueKey uniqueKey)

public Class AlterTableUniqueDelegate

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