/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to you under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.calcite.adapter.enumerable; import org.apache.calcite.plan.Convention; import org.apache.calcite.plan.RelOptUtil; import org.apache.calcite.rel.RelNode; import org.apache.calcite.rel.convert.ConverterRule; import org.apache.calcite.rel.core.RelFactories; import org.apache.calcite.rel.logical.LogicalFilter; import java.util.function.Predicate; /** * Rule to convert a {@link org.apache.calcite.rel.logical.LogicalFilter} to an * {@link EnumerableFilter}. */ class EnumerableFilterRule extends ConverterRule { EnumerableFilterRule() { super(LogicalFilter.class, (Predicate<LogicalFilter>) RelOptUtil::notContainsWindowedAgg, Convention.NONE, EnumerableConvention.INSTANCE, RelFactories.LOGICAL_BUILDER, "EnumerableFilterRule"); } public RelNode convert(RelNode rel) { final LogicalFilter filter = (LogicalFilter) rel; return new EnumerableFilter(rel.getCluster(), rel.getTraitSet().replace(EnumerableConvention.INSTANCE), convert(filter.getInput(), filter.getInput().getTraitSet() .replace(EnumerableConvention.INSTANCE)), filter.getCondition()); } }