org.springframework.objenesis.ObjenesisHelper Maven / Gradle / Ivy
/*
* Copyright 2006-2021 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 org.springframework.objenesis;
import java.io.Serializable;
import org.springframework.objenesis.instantiator.ObjectInstantiator;
/**
* Use Objenesis in a static way. It is strongly not recommended to use this class.
*
* @author Henri Tremblay
*/
public final class ObjenesisHelper {
private static final Objenesis OBJENESIS_STD = new ObjenesisStd();
private static final Objenesis OBJENESIS_SERIALIZER = new ObjenesisSerializer();
private ObjenesisHelper() {
}
/**
* Will create a new object without any constructor being called
*
* @param Type instantiated
* @param clazz Class to instantiate
* @return New instance of clazz
*/
public static T newInstance(Class clazz) {
return OBJENESIS_STD.newInstance(clazz);
}
/**
* Will create an object just like it's done by ObjectInputStream.readObject (the default
* constructor of the first non serializable class will be called)
*
* @param Type instantiated
* @param clazz Class to instantiate
* @return New instance of clazz
*/
public static T newSerializableInstance(Class clazz) {
return OBJENESIS_SERIALIZER.newInstance(clazz);
}
/**
* Will pick the best instantiator for the provided class. If you need to create a lot of
* instances from the same class, it is way more efficient to create them from the same
* ObjectInstantiator than calling {@link #newInstance(Class)}.
*
* @param Type to instantiate
* @param clazz Class to instantiate
* @return Instantiator dedicated to the class
*/
public static ObjectInstantiator getInstantiatorOf(Class clazz) {
return OBJENESIS_STD.getInstantiatorOf(clazz);
}
/**
* Same as {@link #getInstantiatorOf(Class)} but providing an instantiator emulating
* ObjectInputStream.readObject behavior.
*
* @see #newSerializableInstance(Class)
* @param Type to instantiate
* @param clazz Class to instantiate
* @return Instantiator dedicated to the class
*/
public static ObjectInstantiator getSerializableObjectInstantiatorOf(Class clazz) {
return OBJENESIS_SERIALIZER.getInstantiatorOf(clazz);
}
}