/*
* 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.wicket.markup.html.link;
import org.apache.wicket.util.lang.Args;
import org.danekja.java.util.function.serializable.SerializableConsumer;
/**
* This link is stateless that means that the url to this link could generate a new page before the
* link onClick is called. Because of this you can't depend on model data in the onClick method.
*
* This Link component is the same as a normal link with the stateless hint to true.
*
* @author jcompagner
*
* @param <T>
* type of model object
*/
public abstract class StatelessLink<T> extends Link<T>
{
private static final long serialVersionUID = 1L;
/**
* Construct.
*
* @param id
*/
public StatelessLink(String id)
{
super(id);
}
@Override
protected boolean getStatelessHint()
{
return true;
}
@Override
protected CharSequence getURL()
{
return urlForListener(getPage().getPageParameters());
}
/**
* Creates a {@link Link} based on lambda expressions
*
* @param id
* the id of the link
* @param onClick
* the {@code SerializableConsumer} which accepts the {@link Void}
* @return the {@link Link}
*/
public static <T> StatelessLink<T> onClick(String id, SerializableConsumer<Link<T>> onClick)
{
Args.notNull(onClick, "onClick");
return new StatelessLink<T>(id)
{
private static final long serialVersionUID = 1L;
@Override
public void onClick()
{
onClick.accept(this);
}
};
}
}