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

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

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

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

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

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

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

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

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

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

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

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

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