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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 copysecond 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.runtime.join.stream;
import org.apache.flink.api.java.functions.KeySelector;
import org.apache.flink.streaming.api.operators.TwoInputSelection;
import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
import org.apache.flink.table.codegen.GeneratedJoinConditionFunction;
import org.apache.flink.table.codegen.GeneratedProjection;
import org.apache.flink.table.dataformat.BaseRow;
import org.apache.flink.table.runtime.join.stream.state.JoinStateHandler;
import org.apache.flink.table.runtime.join.stream.state.match.JoinMatchStateHandler;
import org.apache.flink.table.typeutils.BaseRowTypeInfo;
/**
* Full outer join operator.
*/
public class FullOuterJoinStreamOperator extends OuterJoinStreamOperator {
public FullOuterJoinStreamOperator(
BaseRowTypeInfo leftType,
BaseRowTypeInfo rightType, GeneratedJoinConditionFunction condFuncCode,
KeySelector leftKeySelector,
KeySelector rightKeySelector,
GeneratedProjection leftPkProjectCode, GeneratedProjection rightPkProjectCode,
JoinStateHandler.Type leftJoinTableType,
JoinStateHandler.Type rightJoinTableType, long maxRetentionTime, long minRetentionTime,
JoinMatchStateHandler.Type leftMatchStateType,
JoinMatchStateHandler.Type rightMatchStateType, boolean[] filterNullKeys) {
super(leftType, rightType, condFuncCode, leftKeySelector, rightKeySelector, leftPkProjectCode,
rightPkProjectCode, leftJoinTableType, rightJoinTableType, maxRetentionTime, minRetentionTime,
leftMatchStateType, rightMatchStateType, filterNullKeys);
}
@Override
public void open() throws Exception {
super.open();
LOG.info("Init FullOuterJoinStreamOperator.");
}
@Override
public TwoInputSelection processElement1(StreamRecord element) throws Exception {
processElement(
getOrCopyBaseRow(element, true),
leftStateHandler,
rightStateHandler,
leftMatchStateHandler,
rightMatchStateHandler,
true,
true,
true,
leftTimerState);
return TwoInputSelection.ANY;
}
@Override
public TwoInputSelection processElement2(StreamRecord element) throws Exception {
processElement(
getOrCopyBaseRow(element, false),
rightStateHandler,
leftStateHandler,
rightMatchStateHandler,
leftMatchStateHandler,
false,
true,
true,
rightTimerState);
return TwoInputSelection.ANY;
}
}
