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modules/javafx.base/src/main/java/javafx/beans/property/adapter/JavaBeanIntegerProperty.java

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rev 10441 : imported patch fix-8177566-trampoline
rev 10444 : imported patch doc-8177566-trampoline
rev 10445 : [mq]: doc-v1-8177566-trampoline
   1 /*
   2  * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javafx.beans.property.adapter;
  27 
  28 import com.sun.javafx.binding.ExpressionHelper;

  29 import com.sun.javafx.property.adapter.Disposer;
  30 import com.sun.javafx.property.adapter.PropertyDescriptor;
  31 import javafx.beans.InvalidationListener;
  32 import javafx.beans.property.IntegerProperty;
  33 import javafx.beans.value.ChangeListener;
  34 import javafx.beans.value.ObservableValue;
  35 
  36 import java.lang.reflect.InvocationTargetException;
  37 import java.lang.reflect.UndeclaredThrowableException;
  38 
  39 import java.security.AccessControlContext;
  40 import java.security.AccessController;
  41 import java.security.PrivilegedAction;
  42 
  43 import sun.reflect.misc.MethodUtil;
  44 
  45 /**
  46  * A {@code JavaBeanIntegerProperty} provides an adapter between a regular
  47  * Java Bean property of type {@code int} or {@code Integer} and a JavaFX
  48  * {@code IntegerProperty}. It cannot be created directly, but a
  49  * {@link JavaBeanIntegerPropertyBuilder} has to be used.
  50  * <p>
  51  * As a minimum, the Java Bean must implement a getter and a setter for the
  52  * property. If the getter of an instance of this class is called, the property of


  53  * the Java Bean is returned. If the setter is called, the value will be passed
  54  * to the Java Bean property. If the Java Bean property is bound (i.e. it supports
  55  * PropertyChangeListeners), this {@code JavaBeanIntegerProperty} will be
  56  * aware of changes in the Java Bean. Otherwise it can be notified about
  57  * changes by calling {@link #fireValueChangedEvent()}. If the Java Bean property
  58  * is also constrained (i.e. it supports VetoableChangeListeners), this
  59  * {@code JavaBeanIntegerProperty} will reject changes, if it is bound to an
  60  * {@link javafx.beans.value.ObservableValue ObservableValue&lt;Integer&gt;}.
























  61  *
  62  * @see javafx.beans.property.IntegerProperty
  63  * @see JavaBeanIntegerPropertyBuilder
  64  * @since JavaFX 2.1
  65  */
  66 public final class JavaBeanIntegerProperty extends IntegerProperty implements JavaBeanProperty<Number> {
  67 
  68     private final PropertyDescriptor descriptor;
  69     private final PropertyDescriptor.Listener<Number> listener;
  70 
  71     private ObservableValue<? extends Number> observable = null;
  72     private ExpressionHelper<Number> helper = null;
  73 
  74     private final AccessControlContext acc = AccessController.getContext();
  75 
  76     JavaBeanIntegerProperty(PropertyDescriptor descriptor, Object bean) {
  77         this.descriptor = descriptor;
  78         this.listener = descriptor.new Listener<Number>(bean, this);
  79         descriptor.addListener(listener);
  80         Disposer.addRecord(this, new DescriptorListenerCleaner(descriptor, listener));
  81     }
  82 
  83     /**
  84      * {@inheritDoc}
  85      *
  86      * @throws UndeclaredThrowableException if calling the getter of the Java Bean
  87      * property throws an {@code IllegalAccessException} or an
  88      * {@code InvocationTargetException}.
  89      */
  90     @Override
  91     public int get() {
  92         return AccessController.doPrivileged((PrivilegedAction<Integer>) () -> {
  93             try {
  94                 return ((Number)MethodUtil.invoke(
  95                     descriptor.getGetter(), getBean(), (Object[])null)).intValue();
  96             } catch (IllegalAccessException e) {
  97                 throw new UndeclaredThrowableException(e);
  98             } catch (InvocationTargetException e) {
  99                 throw new UndeclaredThrowableException(e);
 100             }
 101         }, acc);
 102     }
 103 
 104     /**
 105      * {@inheritDoc}
 106      *
 107      * @throws UndeclaredThrowableException if calling the getter of the Java Bean
 108      * property throws an {@code IllegalAccessException} or an
 109      * {@code InvocationTargetException}.
 110      */
 111     @Override
 112     public void set(final int value) {
 113         if (isBound()) {
 114             throw new RuntimeException("A bound value cannot be set.");
 115         }
 116         AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
 117             try {
 118                 MethodUtil.invoke(descriptor.getSetter(), getBean(), new Object[] {value});
 119                 ExpressionHelper.fireValueChangedEvent(helper);
 120             } catch (IllegalAccessException e) {
 121                 throw new UndeclaredThrowableException(e);
 122             } catch (InvocationTargetException e) {
 123                 throw new UndeclaredThrowableException(e);
 124             }
 125             return null;
 126         }, acc);
 127     }
 128 
 129     /**
 130      * {@inheritDoc}
 131      */
 132     @Override
 133     public void bind(ObservableValue<? extends Number> observable) {
 134         if (observable == null) {
 135             throw new NullPointerException("Cannot bind to null");
 136         }
 137 
 138         if (!observable.equals(this.observable)) {


   1 /*
   2  * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javafx.beans.property.adapter;
  27 
  28 import com.sun.javafx.binding.ExpressionHelper;
  29 import com.sun.javafx.property.MethodHelper;
  30 import com.sun.javafx.property.adapter.Disposer;
  31 import com.sun.javafx.property.adapter.PropertyDescriptor;
  32 import javafx.beans.InvalidationListener;
  33 import javafx.beans.property.IntegerProperty;
  34 import javafx.beans.value.ChangeListener;
  35 import javafx.beans.value.ObservableValue;
  36 
  37 import java.lang.reflect.InvocationTargetException;
  38 import java.lang.reflect.UndeclaredThrowableException;
  39 
  40 import java.security.AccessControlContext;
  41 import java.security.AccessController;
  42 import java.security.PrivilegedAction;
  43 


  44 /**
  45  * A {@code JavaBeanIntegerProperty} provides an adapter between a regular
  46  * Java Bean property of type {@code int} or {@code Integer} and a JavaFX
  47  * {@code IntegerProperty}. It cannot be created directly, but a
  48  * {@link JavaBeanIntegerPropertyBuilder} has to be used.
  49  * <p>
  50  * As a minimum, the Java Bean class must implement a getter and a setter for the
  51  * property.
  52  * The class, as well as the getter and a setter methods, must be declared public.
  53  * If the getter of an instance of this class is called, the property of
  54  * the Java Bean is returned. If the setter is called, the value will be passed
  55  * to the Java Bean property. If the Java Bean property is bound (i.e. it supports
  56  * PropertyChangeListeners), this {@code JavaBeanIntegerProperty} will be
  57  * aware of changes in the Java Bean. Otherwise it can be notified about
  58  * changes by calling {@link #fireValueChangedEvent()}. If the Java Bean property
  59  * is also constrained (i.e. it supports VetoableChangeListeners), this
  60  * {@code JavaBeanIntegerProperty} will reject changes, if it is bound to an
  61  * {@link javafx.beans.value.ObservableValue ObservableValue&lt;Integer&gt;}.
  62  * </p>
  63  * <p><b>Deploying an Application as a Module</b></p>
  64  * <p>
  65  * If the Java Bean class is in a named module, then it must be reflectively
  66  * accessible to the {@code javafx.base} module.
  67  * A class is reflectively accessible if the module
  68  * {@link Module#isOpen(String,Module) opens} the containing package to at
  69  * least the {@code javafx.base} module.
  70  * </p>
  71  * <p>
  72  * For example, if {@code com.foo.MyBeanClass} is in the {@code foo.app} module,
  73  * the {@code module-info.java} might
  74  * look like this:
  75  * </p>
  76  *
  77 <pre>{@code module foo.app {
  78     opens com.foo to javafx.base;
  79 }}</pre>
  80  *
  81  * <p>
  82  * Alternatively, a class is reflectively accessible if the module
  83  * {@link Module#isExported(String) exports} the containing package
  84  * unconditionally.
  85  * </p>
  86  *
  87  * @see javafx.beans.property.IntegerProperty
  88  * @see JavaBeanIntegerPropertyBuilder
  89  * @since JavaFX 2.1
  90  */
  91 public final class JavaBeanIntegerProperty extends IntegerProperty implements JavaBeanProperty<Number> {
  92 
  93     private final PropertyDescriptor descriptor;
  94     private final PropertyDescriptor.Listener<Number> listener;
  95 
  96     private ObservableValue<? extends Number> observable = null;
  97     private ExpressionHelper<Number> helper = null;
  98 
  99     private final AccessControlContext acc = AccessController.getContext();
 100 
 101     JavaBeanIntegerProperty(PropertyDescriptor descriptor, Object bean) {
 102         this.descriptor = descriptor;
 103         this.listener = descriptor.new Listener<Number>(bean, this);
 104         descriptor.addListener(listener);
 105         Disposer.addRecord(this, new DescriptorListenerCleaner(descriptor, listener));
 106     }
 107 
 108     /**
 109      * {@inheritDoc}
 110      *
 111      * @throws UndeclaredThrowableException if calling the getter of the Java Bean
 112      * property throws an {@code IllegalAccessException} or an
 113      * {@code InvocationTargetException}.
 114      */
 115     @Override
 116     public int get() {
 117         return AccessController.doPrivileged((PrivilegedAction<Integer>) () -> {
 118             try {
 119                 return ((Number)MethodHelper.invoke(
 120                     descriptor.getGetter(), getBean(), (Object[])null)).intValue();
 121             } catch (IllegalAccessException e) {
 122                 throw new UndeclaredThrowableException(e);
 123             } catch (InvocationTargetException e) {
 124                 throw new UndeclaredThrowableException(e);
 125             }
 126         }, acc);
 127     }
 128 
 129     /**
 130      * {@inheritDoc}
 131      *
 132      * @throws UndeclaredThrowableException if calling the getter of the Java Bean
 133      * property throws an {@code IllegalAccessException} or an
 134      * {@code InvocationTargetException}.
 135      */
 136     @Override
 137     public void set(final int value) {
 138         if (isBound()) {
 139             throw new RuntimeException("A bound value cannot be set.");
 140         }
 141         AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
 142             try {
 143                 MethodHelper.invoke(descriptor.getSetter(), getBean(), new Object[] {value});
 144                 ExpressionHelper.fireValueChangedEvent(helper);
 145             } catch (IllegalAccessException e) {
 146                 throw new UndeclaredThrowableException(e);
 147             } catch (InvocationTargetException e) {
 148                 throw new UndeclaredThrowableException(e);
 149             }
 150             return null;
 151         }, acc);
 152     }
 153 
 154     /**
 155      * {@inheritDoc}
 156      */
 157     @Override
 158     public void bind(ObservableValue<? extends Number> observable) {
 159         if (observable == null) {
 160             throw new NullPointerException("Cannot bind to null");
 161         }
 162 
 163         if (!observable.equals(this.observable)) {


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