org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecCorrelate Maven / Gradle / Ivy

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This module bridges Table/SQL API and runtime. It contains all resources that are required during pre-flight and runtime phase. The content of this module is work-in-progress. It will replace flink-table-planner once it is stable. See FLINK-11439 and FLIP-32 for more details.

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/*
 * 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.flink.table.planner.plan.nodes.exec.stream;

import org.apache.flink.table.data.RowData;
import org.apache.flink.table.planner.plan.nodes.exec.ExecNode;
import org.apache.flink.table.planner.plan.nodes.exec.InputProperty;
import org.apache.flink.table.planner.plan.nodes.exec.common.CommonExecCorrelate;
import org.apache.flink.table.runtime.operators.TableStreamOperator;
import org.apache.flink.table.runtime.operators.join.FlinkJoinType;
import org.apache.flink.table.types.logical.RowType;

import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty;

import org.apache.calcite.rex.RexCall;
import org.apache.calcite.rex.RexNode;

import javax.annotation.Nullable;

import java.util.Collections;
import java.util.List;

/**
 * Stream {@link ExecNode} which matches along with join a Java/Scala user defined table function.
 */
@JsonIgnoreProperties(ignoreUnknown = true)
public class StreamExecCorrelate extends CommonExecCorrelate implements StreamExecNode {

    public StreamExecCorrelate(
            FlinkJoinType joinType,
            RexCall invocation,
            @Nullable RexNode condition,
            InputProperty inputProperty,
            RowType outputType,
            String description) {
        this(
                joinType,
                invocation,
                condition,
                getNewNodeId(),
                Collections.singletonList(inputProperty),
                outputType,
                description);
    }

    @JsonCreator
    public StreamExecCorrelate(
            @JsonProperty(FIELD_NAME_JOIN_TYPE) FlinkJoinType joinType,
            @JsonProperty(FIELD_NAME_FUNCTION_CALL) RexNode invocation,
            @JsonProperty(FIELD_NAME_CONDITION) @Nullable RexNode condition,
            @JsonProperty(FIELD_NAME_ID) int id,
            @JsonProperty(FIELD_NAME_INPUT_PROPERTIES) List inputProperties,
            @JsonProperty(FIELD_NAME_OUTPUT_TYPE) RowType outputType,
            @JsonProperty(FIELD_NAME_DESCRIPTION) String description) {
        super(
                joinType,
                (RexCall) invocation,
                condition,
                TableStreamOperator.class,
                true, // retainHeader
                id,
                inputProperties,
                outputType,
                description);
    }
}