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/*
 * Copyright (C) 2015 SoftIndex LLC.
 *
 * 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 io.datakernel.aggregation.measure;

import io.datakernel.aggregation.fieldtype.FieldType;
import io.datakernel.aggregation.fieldtype.FieldTypes;

public class Measures {
	private Measures() {
	}

	public static Measure sum(FieldType ofType) {
		return new MeasureSum(ofType);
	}

	public static Measure min(FieldType ofType) {
		return new MeasureMin(ofType);
	}

	public static Measure max(FieldType ofType) {
		return new MeasureMax(ofType);
	}

	public static Measure count(FieldType ofType) {
		return new MeasureCount(ofType);
	}

	public static Measure hyperLogLog(int registers) {
		return new MeasureHyperLogLog(registers);
	}

	public static Measure union(FieldType fieldType) {
		return new MeasureUnion(FieldTypes.ofSet(fieldType));
	}
}