Class RoleGrantDescriptor

java.lang.Object

org.apache.derby.iapi.sql.dictionary.TupleDescriptor

org.apache.derby.iapi.sql.dictionary.RoleGrantDescriptor

All Implemented Interfaces:

Dependable, Provider

public class RoleGrantDescriptor
extends TupleDescriptor
implements Provider

This class is used by rows in the SYS.SYSROLES system table. An instance contains information for exactly: One <role definition>, cf. ISO/IEC 9075-2:2003 section 12.4 or one <grant role statement>, section 12.5. A role definition is also modeled as a role grant (hence the class name), but with the special grantor "_SYSTEM", and with a grantee of the definer, in Derby this is always the current user. For a role definition, the WITH ADMIN flag is also set. The information contained in the isDef flag is usually redundant, but was added as a precaution against a real user named _SYSTEM, for example when upgrading an older database that did not forbid this.

Field Summary

Fields

Modifier and Type	Field	Description
private final String	grantee
private final String	grantor
private final boolean	isDef
private final String	roleName
private final UUID	uuid
private boolean	withAdminOption

Fields inherited from interface Dependable

ACTIVATION, ALIAS, COLUMNS_IN_TABLE, COLUMNS_PERMISSION, CONGLOMERATE, CONSTRAINT, DEFAULT, FILE, HEAP, INDEX, PERM, PREPARED_STATEMENT, ROLE_GRANT, ROUTINE_PERMISSION, SCHEMA, SEQUENCE, STORED_PREPARED_STATEMENT, TABLE, TABLE_PERMISSION, TRIGGER, VIEW

Constructor Summary

Constructors

Constructor	Description
RoleGrantDescriptor(DataDictionary dd, UUID uuid, String roleName, String grantee, String grantor, boolean withAdminOption, boolean isDef)	Constructor

Method Summary

Modifier and Type	Method	Description
void	drop(LanguageConnectionContext lcc)	Drop this role.descriptor
String	getClassType()	Get the provider's type.
DependableFinder	getDependableFinder()	Get an object which can be written to disk and which, when read from disk, will find or reconstruct this in-memory Dependable.
String	getDescriptorName()
String	getDescriptorType()	Each descriptor must identify itself with its type; i.e index, check constraint whatever.
String	getGrantee()
String	getGrantor()
UUID	getObjectID()	Get the provider's UUID
String	getObjectName()	Return the name of this Provider.
String	getRoleName()
UUID	getUUID()
boolean	isDef()
boolean	isPersistent()	Is this provider persistent?
boolean	isWithAdminOption()
void	setWithAdminOption(boolean b)
String	toString()

Methods inherited from class TupleDescriptor

getColumnDependableFinder, getDataDictionary, getDependableFinder, setDataDictionary

Methods inherited from class Object

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

Field Details

uuid

private final UUID uuid

roleName

private final String roleName

grantee

private final String grantee

grantor

private final String grantor

withAdminOption

private boolean withAdminOption

isDef

private final boolean isDef

Constructor Details

RoleGrantDescriptor

public RoleGrantDescriptor(DataDictionary dd,
 UUID uuid,
 String roleName,
 String grantee,
 String grantor,
 boolean withAdminOption,
 boolean isDef)

Constructor

Parameters:

dd - data dictionary

uuid - unique identification in time and space of this role descriptor

roleName -

grantee -

grantor -

withAdminOption -

isDef -

Method Details

getUUID

public UUID getUUID()

getGrantee

public String getGrantee()

getGrantor

public String getGrantor()

isDef

public boolean isDef()

getRoleName

public String getRoleName()

isWithAdminOption

public boolean isWithAdminOption()

setWithAdminOption

public void setWithAdminOption(boolean b)

toString

public String toString()

Overrides:

toString in class Object

getDescriptorType

public String getDescriptorType()

Description copied from class: TupleDescriptor

Each descriptor must identify itself with its type; i.e index, check constraint whatever.

Overrides:

getDescriptorType in class TupleDescriptor

getDescriptorName

public String getDescriptorName()

Overrides:

getDescriptorName in class TupleDescriptor

drop

public void drop(LanguageConnectionContext lcc)
          throws StandardException

Drop this role.descriptor

Throws:

StandardException - Could not be dropped.

getObjectID

public UUID getObjectID()

Get the provider's UUID

Specified by:

getObjectID in interface Dependable

Returns:

The provider's UUID

isPersistent

public boolean isPersistent()

Is this provider persistent? A stored dependency will be required if both the dependent and provider are persistent.

Specified by:

isPersistent in interface Dependable

Overrides:

isPersistent in class TupleDescriptor

Returns:

boolean Whether or not this provider is persistent.

getObjectName

public String getObjectName()

Return the name of this Provider. (Useful for errors.)

Specified by:

getObjectName in interface Dependable

Returns:

String The name of this provider.

getClassType

public String getClassType()

Get the provider's type.

Specified by:

getClassType in interface Dependable

Returns:

char The provider's type.

getDependableFinder

public DependableFinder getDependableFinder()

Description copied from interface: Dependable

Get an object which can be written to disk and which, when read from disk, will find or reconstruct this in-memory Dependable.

Specified by:

getDependableFinder in interface Dependable

Returns:

the stored form of this provider

See Also:

• Dependable.getDependableFinder()