org.hibernate.boot.model.naming

Class NamingHelper

java.lang.Object

org.hibernate.boot.model.naming.NamingHelper

public class NamingHelper
extends Object

Author:

Steve Ebersole

Field Summary

Fields

Modifier and Type	Field and Description
static NamingHelper	INSTANCE Singleton access

Constructor Summary

Constructors

Constructor and Description
NamingHelper()

Method Summary

Modifier and Type	Method and Description
String	generateHashedConstraintName(String prefix, Identifier tableName, Identifier... columnNames) If a constraint is not explicitly named, this is called to generate a unique hash using the table and column names.
String	generateHashedConstraintName(String prefix, Identifier tableName, List<Identifier> columnNames) If a constraint is not explicitly named, this is called to generate a unique hash using the table and column names.
String	generateHashedFkName(String prefix, Identifier tableName, Identifier referencedTableName, Identifier... columnNames) If a foreign-key is not explicitly named, this is called to generate a unique hash using the table and column names.
String	generateHashedFkName(String prefix, Identifier tableName, Identifier referencedTableName, List<Identifier> columnNames) If a foreign-key is not explicitly named, this is called to generate a unique hash using the table and column names.
String	hashedName(String s) Hash a constraint name using MD5.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final NamingHelper INSTANCE

Singleton access

Constructor Detail

NamingHelper

public NamingHelper()

Method Detail

generateHashedFkName

public String generateHashedFkName(String prefix,
                                   Identifier tableName,
                                   Identifier referencedTableName,
                                   List<Identifier> columnNames)

If a foreign-key is not explicitly named, this is called to generate a unique hash using the table and column names.

generateHashedFkName

public String generateHashedFkName(String prefix,
                                   Identifier tableName,
                                   Identifier referencedTableName,
                                   Identifier... columnNames)

If a foreign-key is not explicitly named, this is called to generate a unique hash using the table and column names.

generateHashedConstraintName

public String generateHashedConstraintName(String prefix,
                                           Identifier tableName,
                                           Identifier... columnNames)

If a constraint is not explicitly named, this is called to generate a unique hash using the table and column names.

Returns:

String The generated name

generateHashedConstraintName

public String generateHashedConstraintName(String prefix,
                                           Identifier tableName,
                                           List<Identifier> columnNames)

If a constraint is not explicitly named, this is called to generate a unique hash using the table and column names.

Returns:

String The generated name

hashedName

public String hashedName(String s)

Hash a constraint name using MD5. Convert the MD5 digest to base 35 (full alphanumeric), guaranteeing that the length of the name will always be smaller than the 30 character identifier restriction enforced by a few dialects.

Parameters:

s - The name to be hashed.

Returns:

String The hashed name.