import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Integer, Integer> newCombiner(String key) {
    return new WordcountCombiner();
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Integer, Integer> newCombiner(String key) {
    return new SalarySumCombiner();
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Integer, SalaryTuple> newCombiner(String key) {
    return new SalaryCombiner();
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Integer, Integer> newCombiner(String key) {
    return new CountCombiner();
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Double, Double> newCombiner(String key) {
    return new InvertedCombiner();
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Double, Double> newCombiner(Feature key) {
    return new InvertedCombiner();
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Classification, List<Classification>> newCombiner(Map<String, Serializable> key) {
    return new DistanceBasedClassificationAlgorithmCombiner(limit);
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Integer, Integer, Integer> newCombiner(Integer key) {
    return new NumberCountCombiner();
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<String, Long, Long> newCombiner(String key) {
    // Create a new Combiner for the given key
    return new WordCountCombiner();
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Integer, Integer> newCombiner(String key) {
    return new IntegerSumCombiner();
}
 

import com.hazelcast.mapreduce.Combiner; //导入依赖的package包/类
@Override
public Combiner<Employee, Set<Employee>> newCombiner(Integer key) {
    return new EmployeeCombiner();
}