org.hibernate.dialect.unique

Class DefaultUniqueDelegate

java.lang.Object

org.hibernate.dialect.unique.DefaultUniqueDelegate

All Implemented Interfaces:

UniqueDelegate

Direct Known Subclasses:

DB2UniqueDelegate, InformixUniqueDelegate

public class DefaultUniqueDelegate
extends Object
implements UniqueDelegate

The default UniqueDelegate implementation for most dialects. Uses separate create/alter statements to apply uniqueness to a column.

Author:

Brett Meyer

Field Summary

Fields

Modifier and Type	Field and Description
protected Dialect	dialect

Constructor Summary

Constructors

Constructor and Description
DefaultUniqueDelegate(Dialect dialect)

Method Summary

Methods

Modifier and Type	Method and Description
String	applyUniquesOnAlter(UniqueKey uniqueKey) If creating unique constraints in separate alter statements is supported, generate the necessary "alter" syntax for the given key.
String	applyUniquesOnAlter(UniqueKey uniqueKey, String defaultCatalog, String defaultSchema) If creating unique constraints in separate alter statements is supported, generate the necessary "alter" syntax for the given key.
String	applyUniquesToTable(Table table) If constraints are supported, but not in seperate alter statements, return uniqueConstraintSql in order to add the constraint to the original table definition.
String	applyUniquesToTable(Table table) If constraints are supported, but not in seperate alter statements, return uniqueConstraintSql in order to add the constraint to the original table definition.
String	applyUniqueToColumn(Column column) If the dialect does not supports unique constraints, this method should return the syntax necessary to mutate the column definition (usually "unique").
String	applyUniqueToColumn(Column column) If the dialect does not supports unique constraints, this method should return the syntax necessary to mutate the column definition (usually "unique").
String	dropUniquesOnAlter(UniqueKey uniqueKey) If dropping unique constraints in separate alter statements is supported, generate the necessary "alter" syntax for the given key.
String	dropUniquesOnAlter(UniqueKey uniqueKey, String defaultCatalog, String defaultSchema) If dropping unique constraints in separate alter statements is supported, generate the necessary "alter" syntax for the given key.
String	uniqueConstraintSql(UniqueKey uniqueKey) Generates the syntax necessary to create the unique constraint (reused by all methods).
String	uniqueConstraintSql(UniqueKey uniqueKey) Generates the syntax necessary to create the unique constraint (reused by all methods).

Methods inherited from class java.lang.Object

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

Field Detail

dialect

protected final Dialect dialect

Constructor Detail

DefaultUniqueDelegate

public DefaultUniqueDelegate(Dialect dialect)

Method Detail

applyUniqueToColumn

public String applyUniqueToColumn(Column column)

Description copied from interface: UniqueDelegate

If the dialect does not supports unique constraints, this method should return the syntax necessary to mutate the column definition (usually "unique").

Specified by:

applyUniqueToColumn in interface UniqueDelegate

Returns:

String

applyUniqueToColumn

public String applyUniqueToColumn(Column column)

Description copied from interface: UniqueDelegate

If the dialect does not supports unique constraints, this method should return the syntax necessary to mutate the column definition (usually "unique").

Specified by:

applyUniqueToColumn in interface UniqueDelegate

Returns:

String

applyUniquesToTable

public String applyUniquesToTable(Table table)

Description copied from interface: UniqueDelegate

If constraints are supported, but not in seperate alter statements, return uniqueConstraintSql in order to add the constraint to the original table definition.

Specified by:

applyUniquesToTable in interface UniqueDelegate

Returns:

String

applyUniquesToTable

public String applyUniquesToTable(Table table)

Description copied from interface: UniqueDelegate

If constraints are supported, but not in seperate alter statements, return uniqueConstraintSql in order to add the constraint to the original table definition.

Specified by:

applyUniquesToTable in interface UniqueDelegate

Returns:

String

applyUniquesOnAlter

public String applyUniquesOnAlter(UniqueKey uniqueKey,
                         String defaultCatalog,
                         String defaultSchema)

Description copied from interface: UniqueDelegate

If creating unique constraints in separate alter statements is supported, generate the necessary "alter" syntax for the given key.

Specified by:

applyUniquesOnAlter in interface UniqueDelegate

Returns:

String

applyUniquesOnAlter

public String applyUniquesOnAlter(UniqueKey uniqueKey)

Description copied from interface: UniqueDelegate

If creating unique constraints in separate alter statements is supported, generate the necessary "alter" syntax for the given key.

Specified by:

applyUniquesOnAlter in interface UniqueDelegate

Returns:

String

dropUniquesOnAlter

public String dropUniquesOnAlter(UniqueKey uniqueKey,
                        String defaultCatalog,
                        String defaultSchema)

Description copied from interface: UniqueDelegate

If dropping unique constraints in separate alter statements is supported, generate the necessary "alter" syntax for the given key.

Specified by:

dropUniquesOnAlter in interface UniqueDelegate

Returns:

String

dropUniquesOnAlter

public String dropUniquesOnAlter(UniqueKey uniqueKey)

Description copied from interface: UniqueDelegate

If dropping unique constraints in separate alter statements is supported, generate the necessary "alter" syntax for the given key.

Specified by:

dropUniquesOnAlter in interface UniqueDelegate

Returns:

String

uniqueConstraintSql

public String uniqueConstraintSql(UniqueKey uniqueKey)

Description copied from interface: UniqueDelegate

Generates the syntax necessary to create the unique constraint (reused by all methods). Ex: "unique (column1, column2, ...)"

Specified by:

uniqueConstraintSql in interface UniqueDelegate

Returns:

String

uniqueConstraintSql

public String uniqueConstraintSql(UniqueKey uniqueKey)

Description copied from interface: UniqueDelegate

Generates the syntax necessary to create the unique constraint (reused by all methods). Ex: "unique (column1, column2, ...)"

Specified by:

uniqueConstraintSql in interface UniqueDelegate

Returns:

String