Examples of org.apache.derby.iapi.sql.depend.DependencyManager.clearDependencies()

Package org.apache.derby.iapi.sql.depend

Class org.apache.derby.iapi.sql.depend.DependencyManager

Examples of org.apache.derby.iapi.sql.depend.DependencyManager.clearDependencies()

org.apache.derby.iapi.sql.depend.DependencyManager.clearDependencies()
Erases all of the dependencies the dependent has, be they valid or invalid, of any dependency type. This action is usually performed as the first step in revalidating a dependent; it first erases all the old dependencies, then revalidates itself generating a list of new dependencies, and then marks itself valid if all its new dependencies are valid.
There might be a future want to clear all dependencies for a particular provider, e.g. when destroying the provider. However, at present, they are assumed to stick around and it is the responsibility of the dependent to erase them when revalidating against the new version of the provider.
clearDependencies will delete dependencies if they are stored; the delete is finalized at the next commit. @param lcc Compiler state @param d the dependent @exception StandardException Thrown on failure

      DependencyManager dm = lcc.getDataDictionary().getDependencyManager();


      /* Clear out the old dependencies on this statement as we
       * will build the new set during the reprepare in makeValid().
       */
      dm.clearDependencies(lcc, this);


      /*
      ** If we are invalidating an EXECUTE STATEMENT because of a stale
      ** plan, we also need to invalidate the stored prepared statement.
      */

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     * drop.) If no one objects, then invalidate any dependent objects.
     */
        dm.invalidateFor(td, action, lcc);


    /* Clear the dependencies for the view */
    dm.clearDependencies(lcc, this);


    /* Drop the view */
    dd.dropViewDescriptor(this, tc);


    /* Drop all table and column permission descriptors */

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      ** We told dropConstraintAndIndex not to
      ** remove our dependencies, so send an invalidate,
      ** and drop the dependencies.
      */
      dm.invalidateFor(conDesc, DependencyManager.DROP_CONSTRAINT, lcc);
      dm.clearDependencies(lcc, conDesc);
    }
  }
}

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      // If column has a default we drop the default and
      // any dependencies
      if (cd.getDefaultInfo() != null)
      {
        DefaultDescriptor defaultDesc = cd.getDefaultDescriptor(dd);
        dm.clearDependencies(lcc, defaultDesc);
      }
    }


    /* Drop the columns */
    dd.dropAllColumnDescriptors(tableId, tc);

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      /*
      ** Now that we got rid of the fks (if we were cascading), it is 
      ** ok to do an invalidate for.
      */
      dm.invalidateFor(cd, DependencyManager.DROP_CONSTRAINT, lcc);
      dm.clearDependencies(lcc, cd);
    }
  }


}

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            // Remove all the dependencies this activation has. It won't need
            // them after it's closed, so let's free up the memory in the
            // dependency manager. (DERBY-4571)
            DependencyManager dm =
                    lcc.getDataDictionary().getDependencyManager();
            dm.clearDependencies(lcc, this);


      lcc.removeActivation(this);
      if (preStmt != null) {
        preStmt.finish(lcc);
        preStmt = null;

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      /* Clear out the old dependencies on this activation as we
       * will die shortly.
       */
      DependencyManager dm =
        lcc.getDataDictionary().getDependencyManager();
      dm.clearDependencies(lcc, this);


      break;
    case DependencyManager.REVOKE_ROLE:
      // Used by persistent objects (views, triggers, constraints)
      break;

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        // Drop the trigger
        dd.dropTriggerDescriptor(this, tc);


        // Clear the dependencies for the trigger 
        dm.clearDependencies(lcc, this);


        // Drop the spses
        SPSDescriptor spsd = dd.getSPSDescriptor(this.getActionId());


        // there shouldn't be any dependencies, but in case

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        SPSDescriptor spsd = dd.getSPSDescriptor(this.getActionId());


        // there shouldn't be any dependencies, but in case
        // there are, lets clear them
        dm.invalidateFor(spsd, DependencyManager.DROP_TRIGGER, lcc);
        dm.clearDependencies(lcc, spsd);
        dd.dropSPSDescriptor(spsd, tc);
        
        if (getWhenClauseId() != null)
        {   
            spsd = dd.getSPSDescriptor(getWhenClauseId());

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        if (getWhenClauseId() != null)
        {   
            spsd = dd.getSPSDescriptor(getWhenClauseId());
            dm.invalidateFor(spsd, DependencyManager.DROP_TRIGGER, lcc);
            dm.clearDependencies(lcc, spsd);
            dd.dropSPSDescriptor(spsd, tc);
        }
    }

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