harmeeksinghbedi commented on issue #25981:
URL: https://github.com/apache/beam/issues/25981#issuecomment-1483968743
Here is the wrong example of the class being generated by Janino.
-----> Class generated
**public final class GeneratedMetadata_NonCumulativeCostHandler implements
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.BuiltInMetadata.NonCumulativeCost.Handler**
{
public final
org.apache.beam.sdk.extensions.sql.impl.CalciteQueryPlanner$NonCumulativeCostImpl
provider0;
public final
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.RelMdPercentageOriginalRows$RelMdNonCumulativeCost
provider1;
public GeneratedMetadata_NonCumulativeCostHandler(
org.apache.beam.sdk.extensions.sql.impl.CalciteQueryPlanner$NonCumulativeCostImpl
provider0,
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.RelMdPercentageOriginalRows$RelMdNonCumulativeCost
provider1) {
this.provider0 = provider0;
this.provider1 = provider1;
}
public
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.MetadataDef
getDef() {
return provider0.getDef();
}
private final Object methodKey0 = new
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.janino.DescriptiveCacheKey("public
abstract
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptCost
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.BuiltInMetadata$NonCumulativeCost$Handler.getNonCumulativeCost(org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.RelNode,org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.RelMetadataQuery)");
public
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptCost
getNonCumulativeCost(
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.RelNode
r,
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.RelMetadataQuery
mq) {
while (r instanceof
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.DelegatingMetadataRel)
{
r =
((org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.DelegatingMetadataRel)
r).getMetadataDelegateRel();
}
final java.util.List key =
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.runtime.FlatLists.of(methodKey0);
final Object v = mq.map.get(r, key);
if (v != null) {
if (v ==
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.NullSentinel.ACTIVE)
{
throw new
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.CyclicMetadataException();
}
if (v ==
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.NullSentinel.INSTANCE)
{
return null;
}
return
(org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptCost) v;
}
mq.map.put(r,
key,org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.NullSentinel.ACTIVE);
try {
final
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptCost x =
getNonCumulativeCost_(r, mq);
mq.map.put(r, key,
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.NullSentinel.mask(x));
return x;
} catch (java.lang.Exception e) {
mq.map.row(r).clear();
throw e;
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