Examples of CursorResultSet

org.apache.derby.iapi.sql.execute.CursorResultSet
The CursorResultSet interface is used to provide additional operations on result sets that can be used in cursors.
Since the ResulSet operations must also be supported by cursor result sets, we extend that interface here as well. @author ames

Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

    boolean        foundMatch = false;
    Object[]       checkRowArray = checkRow.getRowArray();
    DataValueDescriptor  checkCol;
    DataValueDescriptor  scanCol;


    CursorResultSet rs = rowHolder.getResultSet();
    try
    {  
      /*
      ** For each inserted row
      */  
      rs.open();
      while ((scanRow = rs.getNextRow()) != null)
      {
        Object[] scanRowArray = scanRow.getRowArray();
        int i;
        for (i = 0; i < colsToCheck.length; i++)
        {
          checkCol = (DataValueDescriptor)checkRowArray[colsToCheck[i]-1];
          scanCol = (DataValueDescriptor)scanRowArray[colsToCheck[i]-1];


          BooleanDataValue result = checkCol.equals(
                      scanCol,
                      checkCol); // result
          if (!result.getBoolean())
          {
            break;
          }
        }
        if (i == colsToCheck.length)
        {
          foundMatch = true;
          break;
        }  
      }
    }
    finally
    {
      rs.close();
    }
    return foundMatch;
  }

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Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

        triggerActivator.notifyEvent(TriggerEvents.BEFORE_INSERT, 
                        (CursorResultSet)null,
                        rowHolder.getResultSet());
      }


      CursorResultSet rs = rowHolder.getResultSet();
      try
      {
        rs.open();
        while ((deferredRowBuffer = rs.getNextRow()) != null)
        {
          // we have to set the source row so the check constraint
          // sees the correct row.
          sourceResultSet.setCurrentRow(deferredRowBuffer);
          evaluateCheckConstraints();
          rowChanger.insertRow(deferredRowBuffer);
        }
      } finally
      {
        sourceResultSet.clearCurrentRow();
        rs.close();
      }
      
      if (fkChecker != null)
      {
        /*
        ** Second scan to make sure all the foreign key
        ** constraints are ok.  We have to do this after
        ** we have completed the inserts in case of self
        ** referencing constraints.
        */
        rs = rowHolder.getResultSet();
        try
        {
          rs.open();
          while ((deferredRowBuffer = rs.getNextRow()) != null)
          {
            fkChecker.doFKCheck(deferredRowBuffer);
          }
        } finally
        {
          rs.close();
        }
      }


      // fire AFTER trigger
      if (triggerActivator != null)

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Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

    ** If it's a deferred insert, scan the temporary conglomerate and
    ** insert the rows into the permanent conglomerates using rowChanger.
    */
    if (constants.deferred)
    {
      CursorResultSet tempRS = rowHolder.getResultSet();
      try
      {
        tempRS.open();
        while ((row = tempRS.getNextRow()) != null)
        {
          insertIntoVTI(rs, row);
        }
      } finally
      {
        sourceResultSet.clearCurrentRow();
        tempRS.close();
      }
    }


    if (rowHolder != null)
    {

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Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

    ** If it's a deferred update, scan the temporary conglomerate and
    ** insert the rows into the VTI using rowChanger.
    */
    if (constants.deferred)
    {
      CursorResultSet tempRS = rowHolder.getResultSet();
      try
      {
        tempRS.open();
        while ((row = tempRS.getNextRow()) != null)
        {
                    int rowNumber = row.getColumn( rowLocationColumn).getInt();
                    rs.absolute( rowNumber);
          updateVTI(rs, row);
        }
      }
            catch (Throwable t)
            {
                throw StandardException.unexpectedUserException(t);
            }
            finally
      {
        sourceResultSet.clearCurrentRow();
        tempRS.close();
      }
    }


    if (rowHolder != null)
    {

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Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

          //skipping the row holder that  we are copying the rows into.
          rowHolderId++;
          continue;
        }
        TemporaryRowHolder currentRowHolder = (TemporaryRowHolder)sVector.elementAt(rowHolderId);  
        CursorResultSet rs = currentRowHolder.getResultSet();
        rs.open();
        while ((row = rs.getNextRow()) != null)
        {
          rowHolder.insert(row);
        }
        rs.close();
        rowHolderId++;
      }
      
    }
  }

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Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

                        (CursorResultSet)null,
                        rowHolder.getResultSet(), 
                        (int[])null);
      }


      CursorResultSet rs = rowHolder.getResultSet();
      try
      {
        rs.open();
        while ((deferredRowBuffer = rs.getNextRow()) != null)
        {
          // we have to set the source row so the check constraint
          // sees the correct row.
          sourceResultSet.setCurrentRow(deferredRowBuffer);
          evaluateCheckConstraints();
          rowChanger.insertRow(deferredRowBuffer);
        }
      } finally
      {
        sourceResultSet.clearCurrentRow();
        rs.close();
      }
      
      if (fkChecker != null)
      {
        /*
        ** Second scan to make sure all the foreign key
        ** constraints are ok.  We have to do this after
        ** we have completed the inserts in case of self
        ** referencing constraints.
        */
        rs = rowHolder.getResultSet();
        try
        {
          rs.open();
          while ((deferredRowBuffer = rs.getNextRow()) != null)
          {
            fkChecker.doFKCheck(deferredRowBuffer);
          }
        } finally
        {
          rs.close();
        }
      }


      // fire AFTER trigger
      if (triggerActivator != null)

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Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

    ** If it's a deferred insert, scan the temporary conglomerate and
    ** insert the rows into the permanent conglomerates using rowChanger.
    */
    if (constants.deferred)
    {
      CursorResultSet tempRS = rowHolder.getResultSet();
      try
      {
        tempRS.open();
        while ((row = tempRS.getNextRow()) != null)
        {
          insertIntoVTI(rs, row);
        }
      } finally
      {
        sourceResultSet.clearCurrentRow();
        tempRS.close();
      }
    }


    if (rowHolder != null)
    {

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Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

                lockMode,
                TransactionController.ISOLATION_SERIALIZABLE,
                constants.heapSCOCI,
                heapDCOCI);
      
    CursorResultSet rs = rowHolder.getResultSet();
    try
    {
      /*
      ** We need to do a fetch doing a partial row
      ** read.  We need to shift our 1-based bit
      ** set to a zero based bit set like the store
      ** expects.
      */
      FormatableBitSet readBitSet = RowUtil.shift(baseRowReadList, 1);


      rs.open();
            while ((defRLRow = rs.getNextRow()) != null)
      {
                rlColumn = defRLRow.getColumn(rlColumnNumber);
        baseRowLocation = 
          (RowLocation) (rlColumn).getObject();
  
        /* Get the base row at the given RowLocation */
        boolean row_exists = 
          deferredBaseCC.fetch(
                     baseRowLocation, deferredSparseRow.getRowArray(), 
                     readBitSet);


        // In case of cascade delete , things like before triggers can delete 
        // the rows before the dependent result get a chance to delete
        if(cascadeDelete && !row_exists)
          continue;


        if (SanityManager.DEBUG)
        {
          if (!row_exists)
          {
                          SanityManager.THROWASSERT("could not find row "+baseRowLocation);
          }
        }
  
        rc.deleteRow(deferredBaseRow, baseRowLocation);
        source.markRowAsDeleted();
      }
    } finally
    {
        rs.close();
    }
  }

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Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

      ** Second scan to make sure all the foreign key
      ** constraints are ok.  We have to do this after
      ** we have completed the deletes in case of self referencing
      ** constraints.
      */
      CursorResultSet rs = rowHolder.getResultSet();
      try
      {
        rs.open();


                ExecRow defRLRow;


                while ((defRLRow = rs.getNextRow()) != null)
        {
                    // Argument "1" below: If a PK referenced by an FK is
                    // deferred, require at least one to be present in the
                    // primary table since we have deleted the row unless
                    // postCheck == true, in which the call to postChecks does
                    // the actual checking, and we need at least one to fulfill
                    // the constraint.
                    fkChecker.doPKCheck(
                            activation,
                            defRLRow,
                            restrictCheckOnly,
                            1);
        }


                if (restrictCheckOnly) {
                    fkChecker.postCheck();
                }


      } finally
      {
        rs.close();
      }
    }
  }

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Examples of org.apache.derby.iapi.sql.execute.CursorResultSet

      return null;
    }


    try
    {
      CursorResultSet brs = beforeResultSet;
      /* We should really shallow clone the result set, because it could be used
       * at multiple places independently in trigger action.  This is a bug found
       * during the fix of beetle 4373.
       */
      if (brs instanceof TemporaryRowHolderResultSet)
        brs = (CursorResultSet) ((TemporaryRowHolderResultSet) brs).clone();
      else if (brs instanceof TableScanResultSet)
        brs = (CursorResultSet) ((TableScanResultSet) brs).clone();
      brs.open();
      java.sql.ResultSet rs = cc.getResultSet(brs);
      resultSetVector.addElement(rs);
      return rs;
    } catch (StandardException se)
    {

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