net.sf.saffron.opt
Class VolcanoPlannerTest.NoneLeafRel

java.lang.Object
  |
  +--net.sf.saffron.rel.SaffronRel
        |
        +--net.sf.saffron.opt.VolcanoPlannerTest.TestLeafRel
              |
              +--net.sf.saffron.opt.VolcanoPlannerTest.NoneLeafRel

Enclosing class:

VolcanoPlannerTest

private static class VolcanoPlannerTest.NoneLeafRel

extends VolcanoPlannerTest.TestLeafRel

Field Summary

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

cluster, digest, id, rowType

Constructor Summary

protected

VolcanoPlannerTest.NoneLeafRel(VolcanoCluster cluster)

Method Summary

Object	clone()
PlanCost	computeSelfCost(SaffronPlanner planner) Returns the cost of this plan (not including children).
protected SaffronType	deriveRowType()

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

childrenAccept, computeDigest, explain, getChildExps, getCluster, getConvention, getCorrelVariable, getId, getInput, getInputs, getOrCreateCorrelVariable, getQualifier, getQuery, getRelTypeName, getRows, getRowType, getTable, getVariablesStopped, implement, implementFieldAccess, isAccessTo, isDistinct, onRegister, recomputeDigest, register, registerCorrelVariable, replaceInput, setCorrelVariable, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

VolcanoPlannerTest.NoneLeafRel

protected VolcanoPlannerTest.NoneLeafRel(VolcanoCluster cluster)

Method Detail

clone

public Object clone()

Specified by:

clone in class SaffronRel

computeSelfCost

public PlanCost computeSelfCost(SaffronPlanner planner)

Description copied from class: SaffronRel

Returns the cost of this plan (not including children). The base implementation throws an error; derived classes should override.

Overrides:

computeSelfCost in class SaffronRel

deriveRowType

protected SaffronType deriveRowType()

Specified by:

deriveRowType in class SaffronRel