net.sf.saffron.oj.convert
Class IterConverterRel

java.lang.Object
  |
  +--net.sf.saffron.rel.SaffronRel
        |
        +--net.sf.saffron.rel.SingleRel
              |
              +--net.sf.saffron.rel.convert.ConverterRel
                    |
                    +--net.sf.saffron.oj.convert.IterConverterRel

public class IterConverterRel

extends ConverterRel

IterConverterRel converts a plan from inConvention to CallingConvention.ITERATOR_ORDINAL.

Field Summary

Fields inherited from class net.sf.saffron.rel.convert.ConverterRel

inConvention

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

IterConverterRel(VolcanoCluster cluster, SaffronRel child)

Method Summary

Object	clone()
CallingConvention	getConvention() Returns a value from CallingConvention.
private String	getResultSetAccessorMethod(OJClass clazz) Returns the name of the method in ResultSet for retrieving a particular type.
Object	implement(RelImplementor implementor, int ordinal) Create a plan for this expression according to a calling convention.
private Object	implementCollection(RelImplementor implementor, int ordinal)
private Object	implementEnumeration(RelImplementor implementor, int ordinal)
private Object	implementIterable(RelImplementor implementor, int ordinal)
private Object	implementResultSet(RelImplementor implementor, int ordinal)
static void	init(SaffronPlanner planner)
private String	toInitcap(String s)

Methods inherited from class net.sf.saffron.rel.convert.ConverterRel

computeSelfCost

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

childrenAccept, deriveRowType, explain, getInputs, getRows, replaceInput

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

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

IterConverterRel

public IterConverterRel(VolcanoCluster cluster,
                        SaffronRel child)

Method Detail

getConvention

public CallingConvention getConvention()

Description copied from class: SaffronRel

Returns a value from CallingConvention.

Overrides:

getConvention in class SaffronRel

clone

public Object clone()

Specified by:

clone in class SaffronRel

init

public static void init(SaffronPlanner planner)

implement

public Object implement(RelImplementor implementor,
                        int ordinal)

Description copied from class: SaffronRel

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

Overrides:

implement in class ConverterRel

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.

getResultSetAccessorMethod

private String getResultSetAccessorMethod(OJClass clazz)

Returns the name of the method in ResultSet for retrieving a particular type. For example, getInt accesses int, getString accesses String, getObject accesses most other kinds of Object.

implementCollection

private Object implementCollection(RelImplementor implementor,
                                   int ordinal)

implementEnumeration

private Object implementEnumeration(RelImplementor implementor,
                                    int ordinal)

implementIterable

private Object implementIterable(RelImplementor implementor,
                                 int ordinal)

implementResultSet

private Object implementResultSet(RelImplementor implementor,
                                  int ordinal)

toInitcap

private String toInitcap(String s)