/* * 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.facebook.presto.bloomfilter; import com.facebook.presto.spi.function.AggregationFunction; import com.facebook.presto.spi.function.InputFunction; import com.facebook.presto.spi.function.SqlType; import com.facebook.presto.spi.type.StandardTypes; import io.airlift.slice.Slice; import static com.facebook.presto.spi.type.StandardTypes.VARCHAR; @AggregationFunction(value = "bloom_filter") public class BloomFilterAggregation extends AbstractBloomFilterAggregation { private BloomFilterAggregation() { } @InputFunction public static void input( BloomFilterState state, @SqlType(VARCHAR) Slice slice) { BloomFilter bf = getOrCreateBloomFilter(state, BloomFilter.DEFAULT_BLOOM_FILTER_EXPECTED_INSERTIONS, BloomFilter.DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_PERCENTAGE); // Note: do not update the memory size as this is constant to our bloom filter implementation bf.put(slice); } @InputFunction public static void input( BloomFilterState state, @SqlType(VARCHAR) Slice slice, @SqlType(StandardTypes.BIGINT) long expectedInsertions) { BloomFilter bf = getOrCreateBloomFilter(state, (int) expectedInsertions, BloomFilter.DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_PERCENTAGE); // Note: do not update the memory size as this is constant to our bloom filter implementation bf.put(slice); } @InputFunction public static void input( BloomFilterState state, @SqlType(VARCHAR) Slice slice, @SqlType(StandardTypes.BIGINT) long expectedInsertions, @SqlType(StandardTypes.DOUBLE) double falsePositivePercentage) { BloomFilter bf = getOrCreateBloomFilter(state, (int) expectedInsertions, falsePositivePercentage); // Note: do not update the memory size as this is constant to our bloom filter implementation bf.put(slice); } }