net.sf.saffron.rel
Class AggregateRel.Call

java.lang.Object
  |
  +--net.sf.saffron.rel.AggregateRel.Call

Enclosing class:

AggregateRel

public static class AggregateRel.Call

extends Object

Field Summary

(package private) Aggregation	aggregation
(package private) int[]	args

Constructor Summary

AggregateRel.Call(Aggregation aggregation, int[] args)

Method Summary

boolean	equals(Object o)
Aggregation	getAggregation()
int[]	getArgs()
void	implementNext(RelImplementor implementor, SaffronRel rel, Expression accumulator)
Expression	implementResult(Expression accumulator) Generates the expression to retrieve the result of this aggregation.
Expression	implementStart(RelImplementor implementor, SaffronRel rel)
Expression	implementStartAndNext(RelImplementor implementor, SaffronRel rel)

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

aggregation

Aggregation aggregation

args

int[] args

Constructor Detail

AggregateRel.Call

public AggregateRel.Call(Aggregation aggregation,
                         int[] args)

Method Detail

getAggregation

public Aggregation getAggregation()

getArgs

public int[] getArgs()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

implementNext

public void implementNext(RelImplementor implementor,
                          SaffronRel rel,
                          Expression accumulator)

implementResult

public Expression implementResult(Expression accumulator)

Generates the expression to retrieve the result of this aggregation.

implementStart

public Expression implementStart(RelImplementor implementor,
                                 SaffronRel rel)

implementStartAndNext

public Expression implementStartAndNext(RelImplementor implementor,
                                        SaffronRel rel)