net.derquinse.common.reflect.This Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of derquinse-common-base Show documentation
Show all versions of derquinse-common-base Show documentation
Module containing support classes depending on Java SE 6, Guava 11 and Joda-Time 2.0
/*
* Copyright (C) the original author or authors.
*
* 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 net.derquinse.common.reflect;
import static com.google.common.base.Preconditions.checkArgument;
import java.lang.reflect.Type;
import com.google.common.reflect.TypeToken;
/**
* Base class for classes that make reference to themselves' types.
* @author Andres Rodriguez
* @param This type.
*/
public abstract class This> {
/**
* Constructor.
* @throws IllegalArgumentException if the type argument is not the same (raw type) as the actual
* class.
*/
protected This() {
final Class> thisClass = getClass();
@SuppressWarnings("serial")
final TypeToken token = new TypeToken(thisClass) {};
Type raw = token.getRawType();
checkArgument(thisClass.equals(raw));
}
/**
* Returns the "this" value.
* @return This object.
*/
@SuppressWarnings("unchecked")
public final T thisValue() {
return (T) this;
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy