org.apache.derby.iapi.sql.dictionary

Class StatementTablePermission

java.lang.Object

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

org.apache.derby.iapi.sql.dictionary.StatementTablePermission

Direct Known Subclasses:

StatementColumnPermission

public class StatementTablePermission
extends StatementPermission

This class describes a table permission required by a statement.

Constructor Summary

Constructors

Constructor and Description
StatementTablePermission(UUID tableUUID, int privType) Constructor for StatementTablePermission.

Method Summary

Modifier and Type	Method and Description
void	check(LanguageConnectionContext lcc, boolean forGrant, Activation activation)
boolean	equals(java.lang.Object obj) Routine to check if another instance of access descriptor matches this.
PermissionsDescriptor	getPermissionDescriptor(java.lang.String authid, DataDictionary dd) Get the PermissionsDescriptor for the passed authorization id for this object.
java.lang.String	getPrivName() Return privilege needed for this access as string
int	getPrivType() Return privilege access requested for this access descriptor
UUID	getTableUUID() Return table UUID for this access descriptor
int	hashCode() Return hash code for this instance
java.lang.String	toString()

Methods inherited from class org.apache.derby.iapi.sql.dictionary.StatementPermission

genericCheck, getObjectType, getPrivilegedObject, isCorrectPermission

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

StatementTablePermission

public StatementTablePermission(UUID tableUUID,
                                int privType)

Constructor for StatementTablePermission. Creates an instance of table permission requested for the given access.

Parameters:

tableUUID - UUID of the table

privType - Access privilege requested

Method Detail

getPrivType

public int getPrivType()

Return privilege access requested for this access descriptor

Returns:

Privilege access

getTableUUID

public UUID getTableUUID()

Return table UUID for this access descriptor

Returns:

Table UUID

equals

public boolean equals(java.lang.Object obj)

Routine to check if another instance of access descriptor matches this. Used to ensure only one access descriptor for a table of given privilege is created. Otherwise, every column reference from a table may create a descriptor for that table.

Overrides:

equals in class java.lang.Object

Parameters:

obj - Another instance of StatementPermission

Returns:

true if match

hashCode

public int hashCode()

Return hash code for this instance

Overrides:

hashCode in class java.lang.Object

Returns:

Hashcode

check

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

Specified by:

check in class StatementPermission

Parameters:

lcc - LanguageConnectionContext

activation - activation for statement needing check

Throws:

StandardException - if the permission has not been granted

See Also:

StatementPermission.check(org.apache.derby.iapi.sql.conn.LanguageConnectionContext, boolean, org.apache.derby.iapi.sql.Activation)

getPermissionDescriptor

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

Description copied from class: StatementPermission

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.

Specified by:

getPermissionDescriptor in class StatementPermission

Parameters:

authid - AuthorizationId

dd - DataDictionary

Returns:

PermissionsDescriptor The PermissionsDescriptor for the passed authorization id on this object

Throws:

StandardException

See Also:

StatementPermission.getPermissionDescriptor(java.lang.String, org.apache.derby.iapi.sql.dictionary.DataDictionary)

getPrivName

public java.lang.String getPrivName()

Return privilege needed for this access as string

Returns:

privilege string

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object