saffron.util
Class Util.RelHolder

java.lang.Object
  |
  +--saffron.rel.Rel
        |
        +--saffron.util.Util.RelHolder

Enclosing class:

Util

private static class Util.RelHolder

extends Rel

Nested Class Summary

Nested classes inherited from class saffron.rel.Rel

Field Summary

(package private) Rel

p

Fields inherited from class saffron.rel.Rel

cluster, digest, id, rowType

Constructor Summary

(package private)

Util.RelHolder(Rel p)

Method Summary

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

Methods inherited from class saffron.rel.Rel

computeDigest, computeSelfCost, explain, getChildExps, getCluster, getConvention, getCorelVariable, getEnvironment, getId, getInput, getOrCreateCorelVariable, getParentEnv, getQualifier, getQuery, getRelTypeName, getRows, getRowType, getTable, getType, getVariablesStopped, implement, implementExp, implementExps, implementFieldAccess, implementSelf, isAccessTo, isDistinct, onRegister, recomputeDigest, register, registerCorelVariable, setCorelVariable, toString

Methods inherited from class java.lang.Object

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

Field Detail

p

Rel p

Constructor Detail

Util.RelHolder

Util.RelHolder(Rel p)

Method Detail

getInputs

public Rel[] getInputs()

Description copied from class: Rel

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

Overrides:

getInputs in class Rel

replaceInput

public void replaceInput(int ordinalInParent,
                         Rel p)

Description copied from class: Rel

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

Overrides:

replaceInput in class Rel

get

Rel get()

childrenAccept

public void childrenAccept(RelVisitor visitor)

Overrides:

childrenAccept in class Rel

deriveRowType

public Type deriveRowType()

Specified by:

deriveRowType in class Rel

clone

public Object clone()

Specified by:

clone in class Rel