<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../jacoco-resources/report.gif" type="image/gif"/><title>PropertyAdapter.java</title><link rel="stylesheet" href="../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../index.html" class="el_report">SteelBlue - JavaFX Bindings</a> > <a href="index.source.html" class="el_package">it.tidalwave.role.ui.javafx.impl.common</a> > <span class="el_source">PropertyAdapter.java</span></div><h1>PropertyAdapter.java</h1><pre class="source lang-java linenums">/*
* *********************************************************************************************************************
*
* SteelBlue: DCI User Interfaces
* http://tidalwave.it/projects/steelblue
*
* Copyright (C) 2015 - 2021 by Tidalwave s.a.s. (http://tidalwave.it)
*
* *********************************************************************************************************************
*
* 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.
*
* *********************************************************************************************************************
*
* git clone https://bitbucket.org/tidalwave/steelblue-src
* git clone https://github.com/tidalwave-it/steelblue-src
*
* *********************************************************************************************************************
*/
package it.tidalwave.role.ui.javafx.impl.common;
import javax.annotation.Nonnull;
import java.beans.PropertyChangeListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.Executor;
import javafx.beans.InvalidationListener;
import javafx.beans.property.Property;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.application.Platform;
import it.tidalwave.role.ui.BoundProperty;
import lombok.extern.slf4j.Slf4j;
/***********************************************************************************************************************
*
* Adapts a {@link BoundProperty} to a JavaFX {@link Property}. It also takes care of threaring issues, making sure that
* the JavaFX {@code Property} is updated in the JavaFX UI thread. Conversely, updates on the JavaFX
* {@code BoundProperty} are executed in a separated thread provided by an {@link Executor}.
*
* TODO: javafx.beans.binding.BooleanExpression.booleanExpression(source)? Does it do threading?
*
* @author Fabrizio Giudici
*
**********************************************************************************************************************/
<span class="nc" id="L54">@Slf4j</span>
public class PropertyAdapter<T> implements Property<T>
{
@Nonnull
private final Executor executor;
@Nonnull
private final BoundProperty<T> delegate;
// FIXME: WEAK LISTENER!!
WEAK LISTENER!!
<span class="nc" id="L64"> private final List<ChangeListener<? super T>> changeListeners = new ArrayList<>();</span>
// FIXME: WEAK LISTENER!!
<span class="nc" id="L67"> private final List<InvalidationListener> invalidationListeners = new ArrayList<>();</span>
private T boundValue;
<span class="nc" id="L71"> private final PropertyChangeListener propertyChangeListener = (event) -> </span>
{
<span class="nc" id="L73"> log.trace("propertyChange({}) - bound value: {}", event, boundValue);</span>
<span class="nc bnc" id="L75" title="All 2 branches missed."> if (!Objects.equals(boundValue, event.getNewValue()))</span>
{
<span class="nc" id="L77"> boundValue = (T)event.getNewValue();</span>
<span class="nc" id="L78"> Platform.runLater(() -></span>
{
<span class="nc" id="L80"> new ArrayList<>(invalidationListeners)</span>
<span class="nc" id="L81"> .forEach(listener -> listener.invalidated(PropertyAdapter.this));</span>
<span class="nc" id="L82"> new ArrayList<>(changeListeners)</span>
<span class="nc" id="L83"> .forEach(listener -> listener.changed(PropertyAdapter.this,</span>
<span class="nc" id="L84"> (T)event.getOldValue(), (T)event.getNewValue()));</span>
<span class="nc" id="L85"> });</span>
}
<span class="nc" id="L87"> };</span>
public PropertyAdapter (@Nonnull final Executor executor, @Nonnull final BoundProperty<T> delegate)
<span class="nc" id="L90"> {</span>
<span class="nc" id="L91"> this.executor = executor;</span>
<span class="nc" id="L92"> this.delegate = delegate;</span>
<span class="nc" id="L93"> this.boundValue = delegate.get();</span>
<span class="nc" id="L94"> delegate.addPropertyChangeListener(propertyChangeListener);</span>
<span class="nc" id="L95"> }</span>
@Override
public T getValue()
{
<span class="nc" id="L100"> return delegate.get();</span>
}
@Override
public void setValue (final T value)
{
<span class="nc" id="L106"> log.debug("setValue({})", value);</span>
<span class="nc" id="L107"> boundValue = value;</span>
<span class="nc bnc" id="L109" title="All 2 branches missed."> if (!Objects.equals(value, delegate.get()))</span>
{
<span class="nc" id="L111"> executor.execute(() -> delegate.set(value));</span>
}
<span class="nc" id="L113"> }</span>
@Override
public void addListener (@Nonnull final ChangeListener<? super T> listener)
{
<span class="nc" id="L118"> changeListeners.add(listener);</span>
<span class="nc" id="L119"> }</span>
@Override
public void removeListener (@Nonnull final ChangeListener<? super T> listener)
{
<span class="nc" id="L124"> changeListeners.remove(listener);</span>
<span class="nc" id="L125"> }</span>
@Override
public void addListener (@Nonnull final InvalidationListener listener)
{
<span class="nc" id="L130"> invalidationListeners.add(listener);</span>
<span class="nc" id="L131"> }</span>
@Override
public void removeListener (@Nonnull final InvalidationListener listener)
{
<span class="nc" id="L136"> invalidationListeners.remove(listener);</span>
<span class="nc" id="L137"> }</span>
@Override
public void bind (final ObservableValue<? extends T> observable)
{
<span class="nc" id="L142"> log.warn("bind({})", observable);</span>
<span class="nc" id="L143"> throw new UnsupportedOperationException("Not supported yet.");</span>
}
@Override
public void unbind()
{
<span class="nc" id="L149"> log.warn("unbind()");</span>
<span class="nc" id="L150"> throw new UnsupportedOperationException("Not supported yet.");</span>
}
@Override
public boolean isBound()
{
<span class="nc" id="L156"> log.warn("isBound()");</span>
<span class="nc" id="L157"> throw new UnsupportedOperationException("Not supported yet.");</span>
}
@Override
public void bindBidirectional (final Property<T> other)
{
<span class="nc" id="L163"> log.warn("bindBidirectional({})", other);</span>
<span class="nc" id="L164"> throw new UnsupportedOperationException("Not supported yet.");</span>
}
@Override
public void unbindBidirectional (final Property<T> other)
{
<span class="nc" id="L170"> log.warn("unbindBidirectional({})", other);</span>
<span class="nc" id="L171"> throw new UnsupportedOperationException("Not supported yet.");</span>
}
@Override
public Object getBean()
{
<span class="nc" id="L177"> log.warn("getBean()");</span>
<span class="nc" id="L178"> throw new UnsupportedOperationException("Not supported yet.");</span>
}
@Override
public String getName()
{
<span class="nc" id="L184"> log.warn("getName()");</span>
<span class="nc" id="L185"> throw new UnsupportedOperationException("Not supported yet.");</span>
}
}
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