Class GrantRoleConstantAction

java.lang.Object

org.apache.derby.impl.sql.execute.DDLConstantAction

org.apache.derby.impl.sql.execute.GrantRoleConstantAction

All Implemented Interfaces:

ConstantAction

class GrantRoleConstantAction
extends DDLConstantAction

This class performs actions that are ALWAYS performed for a GRANT role statement at execution time. Descriptors corresponding to the grants are stored in the SYS.SYSROLES table, along with the role definitions, cf CreateRoleConstantAction.

Field Summary

Fields

Modifier and Type	Field	Description
private List	grantees
private List	roleNames
private final boolean	withAdminOption

Fields inherited from interface ConstantAction

WHEN_MATCHED_THEN_DELETE, WHEN_MATCHED_THEN_UPDATE, WHEN_NOT_MATCHED_THEN_INSERT

Constructor Summary

Constructors

Constructor	Description
GrantRoleConstantAction(List roleNames, List grantees)	Make the ConstantAction for a CREATE ROLE statement.

Method Summary

Modifier and Type	Method	Description
private void	checkCircularity(String role, String grantee, String grantor, TransactionController tc, DataDictionary dd)	Check that allowing this grant to go ahead does nto create a circularity in the GRANT role relation graph, cf.
void	executeConstantAction(Activation activation)	This is the guts of the Execution-time logic for GRANT role.
String	toString()

Methods inherited from class DDLConstantAction

addColumnDependencies, adjustUDTDependencies, adjustUDTDependencies, constructToString, getAndCheckSchemaDescriptor, getSchemaDescriptorForCreate, lockTableForDDL, storeConstraintDependenciesOnPrivileges, storeViewTriggerDependenciesOnPrivileges

Methods inherited from class Object

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

Field Details

roleNames

private List roleNames

grantees

private List grantees

withAdminOption

private final boolean withAdminOption

See Also:

• Constant Field Values

Constructor Details

GrantRoleConstantAction

public GrantRoleConstantAction(List roleNames,
 List grantees)

Make the ConstantAction for a CREATE ROLE statement. When executed, will create a role by the given name.

Parameters:

roleNames - List of the names of the roles being granted

grantees - List of the authorization ids granted to role

Method Details

executeConstantAction

public void executeConstantAction(Activation activation)
                           throws StandardException

This is the guts of the Execution-time logic for GRANT role.

Parameters:

activation - The execution environment for this constant action.

Throws:

StandardException - Thrown on failure

See Also:

• ConstantAction.executeConstantAction(Activation)

checkCircularity

private void checkCircularity(String role,
 String grantee,
 String grantor,
 TransactionController tc,
 DataDictionary dd)
                       throws StandardException

Check that allowing this grant to go ahead does nto create a circularity in the GRANT role relation graph, cf. Section 12.5, Syntax rule 1 of ISO/IEC 9075-2 2003.

Parameters:

role - The role about to be granted

grantee - The role to which role is to be granted

grantor - Who does the granting

Throws:

StandardException - normal error policy. Throws AUTH_ROLE_GRANT_CIRCULARITY if a circularity is detected.

toString

public String toString()

Overrides:

toString in class Object