net.sf.saffron.oj.rel
Class JavaFilterRel

java.lang.Object
  |
  +--net.sf.saffron.rel.SaffronRel
        |
        +--net.sf.saffron.rel.SingleRel
              |
              +--net.sf.saffron.rel.FilterRel
                    |
                    +--net.sf.saffron.oj.rel.JavaFilterRel

public class JavaFilterRel

extends FilterRel

Implements the FilterRel relational expression in Java code.

Field Summary

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

condition

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

JavaFilterRel(VolcanoCluster cluster, SaffronRel child, RexNode condition)

Method Summary

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

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

computeSelfCost, explain, getChildExps, getRows

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

childrenAccept, deriveRowType, getInputs, replaceInput

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

computeDigest, 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

JavaFilterRel

public JavaFilterRel(VolcanoCluster cluster,
                     SaffronRel child,
                     RexNode condition)

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()

Overrides:

clone in class FilterRel

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 SaffronRel

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.