saffron.rel.plan
Class PlanArrayReader

java.lang.Object
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  +--saffron.rel.Rel
        |
        +--saffron.rel.ExpressionReader
              |
              +--saffron.rel.plan.PlanArrayReader

class PlanArrayReader

extends ExpressionReader

PlanArrayReader implements ExpressionReader as a Plan object.

Nested Class Summary

Nested classes inherited from class saffron.rel.Rel

Field Summary

Fields inherited from class saffron.rel.ExpressionReader

convention, exp

Fields inherited from class saffron.rel.Rel

cluster, digest, id, rowType

Constructor Summary

(package private)

PlanArrayReader(Cluster cluster, Expression exp)

Method Summary

Object	clone()
CallingConvention	getConvention() Returns a value from CallingConvention.
Object	implement(Implementor implementor, int ordinal) Create a plan for this expression according to a calling convention.

Methods inherited from class saffron.rel.ExpressionReader

computeSelfCost, deriveRowType, explain, getChildExps, getExp, isDistinct, isRelational

Methods inherited from class saffron.rel.Rel

childrenAccept, computeDigest, getCluster, getCorelVariable, getEnvironment, getId, getInput, getInputs, getOrCreateCorelVariable, getParentEnv, getQualifier, getQuery, getRelTypeName, getRows, getRowType, getTable, getType, getVariablesStopped, implementExp, implementExps, implementFieldAccess, implementSelf, isAccessTo, onRegister, recomputeDigest, register, registerCorelVariable, replaceInput, setCorelVariable, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PlanArrayReader

PlanArrayReader(Cluster cluster,
                Expression exp)

Method Detail

clone

public Object clone()

Overrides:

clone in class ExpressionReader

getConvention

public CallingConvention getConvention()

Description copied from class: Rel

Returns a value from CallingConvention.

Overrides:

getConvention in class ExpressionReader

implement

public Object implement(Implementor implementor,
                        int ordinal)

Description copied from class: Rel

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

Overrides:

implement in class ExpressionReader

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.