Examples of org.eigenbase.rel.metadata.CachingRelMetadataProvider$CachingInvocationHandler

org.eigenbase.rel.metadata.CachingRelMetadataProvider
Implementation of {@link InvocationHandler} for calls to a{@link CachingRelMetadataProvider}. Each request first looks in the cache; if the cache entry is present and not expired, returns the cache entry, otherwise computes the value and stores in the cache.

        new DefaultRelMetadataProvider();
    list.add(defaultProvider);
    planner.registerMetadataProviders(list);
    RelMetadataProvider plannerChain = ChainedRelMetadataProvider.of(list);
    relInitial.getCluster().setMetadataProvider(
        new CachingRelMetadataProvider(plannerChain, planner));


    planner.setRoot(relInitial);
    RelNode relAfter = planner.findBestExp();


    String planBefore = NL + RelOptUtil.toString(relAfter);

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      hepPgm = hepPgmBldr.build();
      HepPlanner hepPlanner = new HepPlanner(hepPgm);


      hepPlanner.registerMetadataProviders(list);
      RelMetadataProvider chainedProvider = ChainedRelMetadataProvider.of(list);
      cluster.setMetadataProvider(new CachingRelMetadataProvider(chainedProvider, hepPlanner));


      RelNode rootRel = optiqPreCboPlan;
      hepPlanner.setRoot(rootRel);
      if (!optiqPreCboPlan.getTraitSet().equals(desiredTraits)) {
        rootRel = hepPlanner.changeTraits(optiqPreCboPlan, desiredTraits);

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      List<RelMetadataProvider> list = Lists.newArrayList();
      list.add(mdProvider);
      planner.registerMetadataProviders(list);
      RelMetadataProvider chainedProvider = ChainedRelMetadataProvider.of(list);
      basePlan.getCluster().setMetadataProvider(
          new CachingRelMetadataProvider(chainedProvider, planner));


      planner.setRoot(basePlan);
      optimizedRelNode = planner.findBestExp();


      return optimizedRelNode;

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Related Classes of org.eigenbase.rel.metadata.CachingRelMetadataProvider$CachingInvocationHandler

org.apache.hadoop.hive.ql.parse.SemanticAnalyzer$OptiqBasedPlanner

org.eigenbase.test.RelOptRulesTest

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