Package net.hydromatic.morel.eval

Class Codes.YieldRowSink

java.lang.Object

net.hydromatic.morel.eval.Codes.BaseRowSink

net.hydromatic.morel.eval.Codes.YieldRowSink

All Implemented Interfaces:

Codes.RowSink, Describable

Enclosing class:

Codes

private static class Codes.YieldRowSink
extends Codes.BaseRowSink

Implementation of Codes.RowSink for a yield step.

If this is the last step, use instead a Codes.CollectRowSink. It is more efficient; there is no downstream row sink; and a terminal yield step is allowed to generate expressions that are not records. Non-record expressions (e.g. int expressions) do not have a name, and therefore the value cannot be passed via the EvalEnv.

Field Summary

Fields

Modifier and Type	Field	Description
private final com.google.common.collect.ImmutableList<Code>	codes
private final com.google.common.collect.ImmutableList<String>	names
private final Object[]	values

Fields inherited from class net.hydromatic.morel.eval.Codes.BaseRowSink

rowSink

Constructor Summary

Constructors

Constructor	Description
YieldRowSink(com.google.common.collect.ImmutableList<String> names, com.google.common.collect.ImmutableList<Code> codes, Codes.RowSink rowSink)

Method Summary

Modifier and Type	Method	Description
void	accept(EvalEnv env)
Describer	describe(Describer describer)

Methods inherited from class net.hydromatic.morel.eval.Codes.BaseRowSink

result, start

Methods inherited from class java.lang.Object

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

Field Details

names

private final com.google.common.collect.ImmutableList<String> names

codes

private final com.google.common.collect.ImmutableList<Code> codes

values

private final Object[] values

Constructor Details

YieldRowSink

YieldRowSink(com.google.common.collect.ImmutableList<String> names,
 com.google.common.collect.ImmutableList<Code> codes,
 Codes.RowSink rowSink)

Method Details

describe

public Describer describe(Describer describer)

accept

public void accept(EvalEnv env)

Specified by:

accept in interface Codes.RowSink

Overrides:

accept in class Codes.BaseRowSink