/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.flink.api.common.typeinfo;
import org.apache.flink.annotation.Public;
import org.apache.flink.api.common.typeutils.TypeComparator;
import org.apache.flink.api.common.typeutils.TypeSerializer;
import java.util.Arrays;
import java.util.HashSet;
import static org.apache.flink.util.Preconditions.checkArgument;
/**
* Type information for numeric primitive types: int, long, double, byte, short, float, char.
*/
@Public
public abstract class NumericTypeInfo<T> extends BasicTypeInfo<T> {
private static final long serialVersionUID = -5937777910658986986L;
private static final HashSet<Class<?>> numericalTypes = new HashSet<Class<?>>(
Arrays.asList(
Integer.class,
Long.class,
Double.class,
Byte.class,
Short.class,
Float.class,
Character.class));
protected NumericTypeInfo(Class<T> clazz, Class<?>[] possibleCastTargetTypes, TypeSerializer<T> serializer, Class<? extends
TypeComparator<T>> comparatorClass) {
super(clazz, possibleCastTargetTypes, serializer, comparatorClass);
checkArgument(numericalTypes.contains(clazz),
"The given class %s is not a numerical type", clazz.getSimpleName());
}
}