net.sf.saffron.opt
Class OptUtil.RelHolder

java.lang.Object
  |
  +--net.sf.saffron.rel.SaffronRel
        |
        +--net.sf.saffron.opt.OptUtil.RelHolder

Enclosing class:

OptUtil

private static class OptUtil.RelHolder

extends SaffronRel

Field Summary

(package private) SaffronRel

p

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

cluster, digest, id, rowType

Constructor Summary

(package private)

OptUtil.RelHolder(SaffronRel p)

Method Summary

void	childrenAccept(RelVisitor visitor)
Object	clone()
SaffronType	deriveRowType()
(package private) SaffronRel	get()
SaffronRel[]	getInputs() Returns an array of this SaffronRel's inputs.
void	replaceInput(int ordinalInParent, SaffronRel p) Replaces the ordinalInParentth input.

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

computeDigest, computeSelfCost, explain, getChildExps, getCluster, getConvention, getCorrelVariable, getId, getInput, getOrCreateCorrelVariable, getQualifier, getQuery, getRelTypeName, getRows, 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

Field Detail

p

SaffronRel p

Constructor Detail

OptUtil.RelHolder

OptUtil.RelHolder(SaffronRel p)

Method Detail

getInputs

public SaffronRel[] getInputs()

Description copied from class: SaffronRel

Returns an array of this SaffronRel's inputs. If there are no inputs, returns an empty array, not null.

Overrides:

getInputs in class SaffronRel

childrenAccept

public void childrenAccept(RelVisitor visitor)

Overrides:

childrenAccept in class SaffronRel

clone

public Object clone()

Specified by:

clone in class SaffronRel

deriveRowType

public SaffronType deriveRowType()

Specified by:

deriveRowType in class SaffronRel

replaceInput

public void replaceInput(int ordinalInParent,
                         SaffronRel p)

Description copied from class: SaffronRel

Replaces the ordinalInParent^th input. You must override this method if you override SaffronRel.getInputs().

Overrides:

replaceInput in class SaffronRel

get

SaffronRel get()