| /* |
| * 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.wayang.core.plan.wayangplan; |
| |
| import org.apache.wayang.core.types.DataSetType; |
| |
| /** |
| * Abstract base-class for sinks with a single input. |
| */ |
| public abstract class UnarySink<T> extends OperatorBase implements ElementaryOperator { |
| |
| /** |
| * Creates a new instance that does not support broadcast {@link InputSlot}s. |
| */ |
| public UnarySink(DataSetType<T> type) { |
| this(type, false); |
| } |
| |
| /** |
| * Creates a new instance. |
| */ |
| public UnarySink(DataSetType<T> type, boolean isSupportingBroadcastInputs) { |
| super(1, 0, isSupportingBroadcastInputs); |
| this.inputSlots[0] = new InputSlot<>("in", this, type); |
| } |
| |
| /** |
| * Copies the given instance. |
| * |
| * @see UnarySink#UnarySink(DataSetType, boolean) |
| * @see OperatorBase#OperatorBase(OperatorBase) |
| */ |
| public UnarySink(UnarySink<T> that) { |
| super(that); |
| this.inputSlots[0] = new InputSlot<>("in", this, that.getType()); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public InputSlot<T> getInput() { |
| return (InputSlot<T>) this.getInput(0); |
| } |
| |
| public DataSetType<T> getType() { |
| return this.getInput().getType(); |
| } |
| |
| } |