net.sf.saffron.oj.convert
Class VectorConverterRel

java.lang.Object
  |
  +--net.sf.saffron.rel.SaffronRel
        |
        +--net.sf.saffron.rel.SingleRel
              |
              +--net.sf.saffron.rel.convert.ConverterRel
                    |
                    +--net.sf.saffron.oj.convert.VectorConverterRel

public class VectorConverterRel

extends ConverterRel

A VectorConverterRel converts a plan from inConvention to CallingConvention.VECTOR_ORDINAL.

Since:

16 December, 2001

Version:

$Id: //open/saffron/src/net/sf/saffron/oj/convert/VectorConverterRel.java#5 $

Author:

jhyde

Field Summary

(package private) Variable

var_v

Fields inherited from class net.sf.saffron.rel.convert.ConverterRel

inConvention

Fields inherited from class net.sf.saffron.rel.SingleRel

child

Fields inherited from class net.sf.saffron.rel.SaffronRel

cluster, digest, id, rowType

Constructor Summary

VectorConverterRel(VolcanoCluster cluster, SaffronRel child)

Method Summary

Object	clone()
CallingConvention	getConvention() Returns a value from CallingConvention.
Object	implement(RelImplementor implementor, int ordinal) Create a plan for this expression according to a calling convention.
private Object	implementJava(RelImplementor implementor, int ordinal)
static void	init(SaffronPlanner planner)

Methods inherited from class net.sf.saffron.rel.convert.ConverterRel

computeSelfCost

Methods inherited from class net.sf.saffron.rel.SingleRel

childrenAccept, deriveRowType, explain, getInputs, getRows, replaceInput

Methods inherited from class net.sf.saffron.rel.SaffronRel

computeDigest, getChildExps, getCluster, getCorrelVariable, getId, getInput, getOrCreateCorrelVariable, getQualifier, getQuery, getRelTypeName, getRowType, getTable, getVariablesStopped, implementFieldAccess, isAccessTo, isDistinct, onRegister, recomputeDigest, register, registerCorrelVariable, setCorrelVariable, toString

Methods inherited from class java.lang.Object

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

Field Detail

var_v

Variable var_v

Constructor Detail

VectorConverterRel

public VectorConverterRel(VolcanoCluster cluster,
                          SaffronRel child)

Method Detail

getConvention

public CallingConvention getConvention()

Description copied from class: SaffronRel

Returns a value from CallingConvention.

Overrides:

getConvention in class SaffronRel

clone

public Object clone()

Specified by:

clone in class SaffronRel

init

public static void init(SaffronPlanner planner)

implement

public Object implement(RelImplementor implementor,
                        int ordinal)

Description copied from class: SaffronRel

Create a plan for this expression according to a calling convention.

Overrides:

implement in class ConverterRel

Parameters:

implementor - implementor

ordinal - indicates our position in the pre-, in- and postfix walk over the tree; ordinal is -1 when called from the parent, and i when called from the i^th child.

implementJava

private Object implementJava(RelImplementor implementor,
                             int ordinal)