com.shopify.graphql.support.Input Maven / Gradle / Ivy
/**
* Copyright 2017 Shopify
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the Software
* is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package com.shopify.graphql.support;
import java.io.Serializable;
/**
* Created by henrytao on 9/7/17.
*/
public final class Input implements Serializable {
private final T value;
private final boolean defined;
public static Input value(@Nullable T value) {
return new Input<>(value, true);
}
public static Input optional(@Nullable T value) {
return value != null ? value(value) : Input.undefined();
}
public static Input undefined() {
return new Input<>(null, false);
}
private Input(T value, boolean defined) {
this.value = value;
this.defined = defined;
}
public T getValue() {
return value;
}
public boolean isDefined() {
return defined;
}
}