Examples with Collator com.hazelcast.mapreduce.Collator used on opensource projects

Example 6 with Collator

use of com.hazelcast.mapreduce.Collator in project hazelcast by hazelcast.

the class BigDecimalMaxAggregation method getCollator.

@Override
public Collator<Map.Entry<Key, BigDecimal>, BigDecimal> getCollator() {
    return new Collator<Map.Entry<Key, BigDecimal>, BigDecimal>() {

        @Override
        public BigDecimal collate(Iterable<Map.Entry<Key, BigDecimal>> values) {
            BigDecimal max = null;
            for (Map.Entry<Key, BigDecimal> entry : values) {
                BigDecimal value = entry.getValue();
                max = max == null ? value : value.max(max);
            }
            return max;
        }
    };
}

Example 7 with Collator

use of com.hazelcast.mapreduce.Collator in project hazelcast by hazelcast.

the class BigDecimalMinAggregation method getCollator.

@Override
public Collator<Map.Entry<Key, BigDecimal>, BigDecimal> getCollator() {
    return new Collator<Map.Entry<Key, BigDecimal>, BigDecimal>() {

        @Override
        public BigDecimal collate(Iterable<Map.Entry<Key, BigDecimal>> values) {
            BigDecimal min = null;
            for (Map.Entry<Key, BigDecimal> entry : values) {
                BigDecimal value = entry.getValue();
                min = min == null ? value : value.min(min);
            }
            return min;
        }
    };
}

Example 8 with Collator

use of com.hazelcast.mapreduce.Collator in project hazelcast by hazelcast.

the class BigIntegerMaxAggregation method getCollator.

@Override
public Collator<Map.Entry<Key, BigInteger>, BigInteger> getCollator() {
    return new Collator<Map.Entry<Key, BigInteger>, BigInteger>() {

        @Override
        public BigInteger collate(Iterable<Map.Entry<Key, BigInteger>> values) {
            BigInteger max = null;
            for (Map.Entry<Key, BigInteger> entry : values) {
                BigInteger value = entry.getValue();
                max = max == null ? value : value.max(max);
            }
            return max;
        }
    };
}

Example 9 with Collator

use of com.hazelcast.mapreduce.Collator in project hazelcast by hazelcast.

the class BigIntegerMinAggregation method getCollator.

@Override
public Collator<Map.Entry<Key, BigInteger>, BigInteger> getCollator() {
    return new Collator<Map.Entry<Key, BigInteger>, BigInteger>() {

        @Override
        public BigInteger collate(Iterable<Map.Entry<Key, BigInteger>> values) {
            BigInteger min = null;
            for (Map.Entry<Key, BigInteger> entry : values) {
                BigInteger value = entry.getValue();
                min = min == null ? value : value.min(min);
            }
            return min;
        }
    };
}

Example 10 with Collator

use of com.hazelcast.mapreduce.Collator in project hazelcast by hazelcast.

the class ClientMapProxy method aggregate.

@Override
public <SuppliedValue, Result> Result aggregate(Supplier<K, V, SuppliedValue> supplier, Aggregation<K, SuppliedValue, Result> aggregation, JobTracker jobTracker) {
    try {
        Preconditions.isNotNull(jobTracker, "jobTracker");
        KeyValueSource<K, V> keyValueSource = KeyValueSource.fromMap(this);
        Job<K, V> job = jobTracker.newJob(keyValueSource);
        Mapper mapper = aggregation.getMapper(supplier);
        CombinerFactory combinerFactory = aggregation.getCombinerFactory();
        ReducerFactory reducerFactory = aggregation.getReducerFactory();
        Collator collator = aggregation.getCollator();
        MappingJob mappingJob = job.mapper(mapper);
        ReducingSubmittableJob reducingJob;
        if (combinerFactory != null) {
            reducingJob = mappingJob.combiner(combinerFactory).reducer(reducerFactory);
        } else {
            reducingJob = mappingJob.reducer(reducerFactory);
        }
        ICompletableFuture<Result> future = reducingJob.submit(collator);
        return future.get();
    } catch (Exception e) {
        throw new HazelcastException(e);
    }
}