Spec-Zone .ru
спецификации, руководства, описания, API
001/*
002 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.  Oracle designates this
008 * particular file as subject to the "Classpath" exception as provided
009 * by Oracle in the LICENSE file that accompanied this code.
010 *
011 * This code is distributed in the hope that it will be useful, but WITHOUT
012 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014 * version 2 for more details (a copy is included in the LICENSE file that
015 * accompanied this code).
016 *
017 * You should have received a copy of the GNU General Public License version
018 * 2 along with this work; if not, write to the Free Software Foundation,
019 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020 *
021 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
022 * or visit www.oracle.com if you need additional information or have any
023 * questions.
024 */
025
026package javafx.beans.property;
027
028import javafx.beans.binding.ObjectExpression;
029import javafx.collections.ObservableList;
030import javafx.collections.ObservableMap;
031import javafx.collections.ObservableSet;
032
033/**
034 * Super class for all readonly properties wrapping an arbitrary {@code Object}.
035 *
036 * For specialized implementations for {@link ObservableList}, {@link ObservableSet} and
037 * {@link ObservableMap} that also report changes inside the collections, see
038 * {@link ReadOnlyListProperty}, {@link ReadOnlySetProperty} and {@link ReadOnlyMapProperty}, respectively.
039 *
040 * @see javafx.beans.value.ObservableObjectValue
041 * @see javafx.beans.binding.ObjectExpression
042 * @see ReadOnlyProperty
043 *
044 *
045 * @param <T>
046 *            the type of the wrapped {@code Object}
047 */
048public abstract class ReadOnlyObjectProperty<T> extends ObjectExpression<T>
049        implements ReadOnlyProperty<T> {
050
051    /**
052     * The constructor of {@code ReadOnlyObjectProperty}.
053     */
054    public ReadOnlyObjectProperty() {
055    }
056
057    /**
058     * Returns a string representation of this {@code ReadOnlyObjectProperty} object.
059     * @return a string representation of this {@code ReadOnlyObjectProperty} object.
060     */
061    @Override
062    public String toString() {
063        final Object bean = getBean();
064        final String name = getName();
065        final StringBuilder result = new StringBuilder(
066                "ReadOnlyObjectProperty [");
067        if (bean != null) {
068            result.append("bean: ").append(bean).append(", ");
069        }
070        if ((name != null) && !name.equals("")) {
071            result.append("name: ").append(name).append(", ");
072        }
073        result.append("value: ").append(get()).append("]");
074        return result.toString();
075    }
076
077}