org.apache.derby.iapi.sql.dictionary

Class StatementPermission

java.lang.Object

org.apache.derby.iapi.sql.dictionary.StatementPermission

Direct Known Subclasses:

StatementGenericPermission, StatementRolePermission, StatementRoutinePermission, StatementSchemaPermission, StatementTablePermission

public abstract class StatementPermission
extends java.lang.Object

This class describes a permission require by a statement.

Method Summary

Modifier and Type	Method and Description
abstract void	check(LanguageConnectionContext lcc, boolean forGrant, Activation activation)
void	genericCheck(LanguageConnectionContext lcc, boolean forGrant, Activation activation, java.lang.String privilegeType) Generic logic called by check() for USAGE and EXECUTE privileges.
java.lang.String	getObjectType() Get the type of the privileged object.
abstract PermissionsDescriptor	getPermissionDescriptor(java.lang.String authid, DataDictionary dd) Get the PermissionsDescriptor for the passed authorization id for this object.
PrivilegedSQLObject	getPrivilegedObject(DataDictionary dd) Get the privileged object associated with this permission.
boolean	isCorrectPermission(PermissionsDescriptor pd) Return true if the passed in permission matches the one required by this StatementPermission.

Methods inherited from class java.lang.Object

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

Method Detail

check

public abstract void check(LanguageConnectionContext lcc,
                           boolean forGrant,
                           Activation activation)
                    throws StandardException

Parameters:

lcc - LanguageConnectionContext

forGrant -

activation - activation for statement needing check

Throws:

StandardException - if the permission has not been granted

getPermissionDescriptor

public abstract PermissionsDescriptor getPermissionDescriptor(java.lang.String authid,
                                                              DataDictionary dd)
                                                       throws StandardException

Get the PermissionsDescriptor for the passed authorization id for this object. This method gets called during the execution phase of create view/constraint/trigger. The return value of this method is saved in dependency system to keep track of views/constraints/triggers dependencies on required permissions. This happens in execution phase after it has been established that passed authorization id has all the permissions it needs to create that view/constraint/trigger. Which means that we can only get to writing into dependency system once all the required privileges are confirmed.

Parameters:

authid - AuthorizationId

dd - DataDictionary

Returns:

PermissionsDescriptor The PermissionsDescriptor for the passed authorization id on this object

Throws:

StandardException

isCorrectPermission

public boolean isCorrectPermission(PermissionsDescriptor pd)
                            throws StandardException

Return true if the passed in permission matches the one required by this StatementPermission.

Throws:

StandardException

getPrivilegedObject

public PrivilegedSQLObject getPrivilegedObject(DataDictionary dd)
                                        throws StandardException

Get the privileged object associated with this permission.

Throws:

StandardException

getObjectType

public java.lang.String getObjectType()

Get the type of the privileged object.

genericCheck

public void genericCheck(LanguageConnectionContext lcc,
                         boolean forGrant,
                         Activation activation,
                         java.lang.String privilegeType)
                  throws StandardException

Generic logic called by check() for USAGE and EXECUTE privileges. Throws an exception if the correct permission cannot be found.

Throws:

StandardException