com.hazelcast.jet.impl.processor.TransformP Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.jet.impl.processor;
import com.hazelcast.jet.core.AbstractProcessor;
import com.hazelcast.jet.Traverser;
import com.hazelcast.jet.function.DistributedFunction;
import javax.annotation.Nonnull;
/**
* Processor which, for each received item, emits all the items from the
* traverser returned by the given item-to-traverser function.
*
* @param received item type
* @param emitted item type
*/
public class TransformP extends AbstractProcessor {
private final FlatMapper flatMapper;
/**
* Constructs a processor with the given mapping function.
*/
public TransformP(@Nonnull DistributedFunction> mapper) {
this.flatMapper = flatMapper(mapper);
}
@Override
protected boolean tryProcess(int ordinal, @Nonnull Object item) {
return flatMapper.tryProcess((T) item);
}
}