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 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: