net.sf.saffron.opt
Class VolcanoPlannerTest.TestSingleRel

java.lang.Object
  |
  +--net.sf.saffron.rel.SaffronRel
        |
        +--net.sf.saffron.rel.SingleRel
              |
              +--net.sf.saffron.opt.VolcanoPlannerTest.TestSingleRel

Direct Known Subclasses:

VolcanoPlannerTest.NoneSingleRel, VolcanoPlannerTest.PhysSingleRel

Enclosing class:

VolcanoPlannerTest

private abstract static class VolcanoPlannerTest.TestSingleRel

extends SingleRel

Field Summary

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

protected

VolcanoPlannerTest.TestSingleRel(VolcanoCluster cluster, SaffronRel child)

Method Summary

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

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

childrenAccept, explain, getInputs, getRows, replaceInput

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

clone, computeDigest, getChildExps, getCluster, getConvention, getCorrelVariable, getId, getInput, getOrCreateCorrelVariable, getQualifier, getQuery, getRelTypeName, getRowType, getTable, getVariablesStopped, implement, 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

Constructor Detail

VolcanoPlannerTest.TestSingleRel

protected VolcanoPlannerTest.TestSingleRel(VolcanoCluster cluster,
                                           SaffronRel child)

Method Detail

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()

Overrides:

deriveRowType in class SingleRel