javafx.beans.property.ReadOnlySetProperty Maven / Gradle / Ivy
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package javafx.beans.property;
import java.util.Collection;
import java.util.Iterator;
import java.util.Set;
import javafx.beans.binding.Bindings;
import javafx.beans.binding.SetExpression;
import javafx.collections.ObservableList;
import javafx.collections.ObservableSet;
/**
* Super class for all readonly properties wrapping an {@link javafx.collections.ObservableSet}.
*
* @see javafx.collections.ObservableSet
* @see javafx.beans.value.ObservableSetValue
* @see javafx.beans.binding.SetExpression
* @see ReadOnlyProperty
*
* @param the type of the {@code Set} elements
* @since JavaFX 2.1
*/
public abstract class ReadOnlySetProperty extends SetExpression implements ReadOnlyProperty> {
/**
* The constructor of {@code ReadOnlySetProperty}.
*/
public ReadOnlySetProperty() {
}
/**
* Creates a bidirectional content binding of the {@link javafx.collections.ObservableSet}, that is
* wrapped in this {@code ReadOnlySetProperty}, and another {@code ObservableSet}.
*
* A bidirectional content binding ensures that the content of two {@code ObservableSets} is the
* same. If the content of one of the sets changes, the other one will be updated automatically.
*
* @param set the {@code ObservableSet} this property should be bound to
* @throws NullPointerException if {@code set} is {@code null}
* @throws IllegalArgumentException if {@code set} is the same set that this {@code ReadOnlySetProperty} points to
*/
public void bindContentBidirectional(ObservableSet set) {
Bindings.bindContentBidirectional(this, set);
}
/**
* Deletes a bidirectional content binding between the {@link javafx.collections.ObservableSet}, that is
* wrapped in this {@code ReadOnlySetProperty}, and another {@code Object}.
*
* @param object the {@code Object} to which the bidirectional binding should be removed
* @throws NullPointerException if {@code object} is {@code null}
* @throws IllegalArgumentException if {@code object} is the same set that this {@code ReadOnlySetProperty} points to
*/
public void unbindContentBidirectional(Object object) {
Bindings.unbindContentBidirectional(this, object);
}
/**
* Creates a content binding between the {@link javafx.collections.ObservableSet}, that is
* wrapped in this {@code ReadOnlySetProperty}, and another {@code ObservableSet}.
*
* A content binding ensures that the content of the wrapped {@code ObservableSets} is the
* same as that of the other set. If the content of the other set changes, the wrapped set will be updated
* automatically. Once the wrapped set is bound to another set, you must not change it directly.
*
* @param set the {@code ObservableSet} this property should be bound to
* @throws NullPointerException if {@code set} is {@code null}
* @throws IllegalArgumentException if {@code set} is the same set that this {@code ReadOnlySetProperty} points to
*/
public void bindContent(ObservableSet set) {
Bindings.bindContent(this, set);
}
/**
* Deletes a content binding between the {@link javafx.collections.ObservableSet}, that is
* wrapped in this {@code ReadOnlySetProperty}, and another {@code Object}.
*
* @param object the {@code Object} to which the binding should be removed
* @throws NullPointerException if {@code object} is {@code null}
* @throws IllegalArgumentException if {@code object} is the same set that this {@code ReadOnlySetProperty} points to
*/
public void unbindContent(Object object) {
Bindings.unbindContent(this, object);
}
@Override
public boolean equals(Object obj) {
if (obj == this)
return true;
if (!(obj instanceof Set))
return false;
Set c = (Set) obj;
if (c.size() != size())
return false;
try {
return containsAll(c);
} catch (ClassCastException unused) {
return false;
} catch (NullPointerException unused) {
return false;
}
}
/**
* Returns a hash code for this {@code ReadOnlySetProperty} object.
* @return a hash code for this {@code ReadOnlySetProperty} object.
*/
@Override
public int hashCode() {
int h = 0;
for (E e : get()) {
if (e != null)
h += e.hashCode();
}
return h;
}
/**
* Returns a string representation of this {@code ReadOnlySetProperty} object.
* @return a string representation of this {@code ReadOnlySetProperty} object.
*/
@Override
public String toString() {
final Object bean = getBean();
final String name = getName();
final StringBuilder result = new StringBuilder(
"ReadOnlySetProperty [");
if (bean != null) {
result.append("bean: ").append(bean).append(", ");
}
if ((name != null) && !name.equals("")) {
result.append("name: ").append(name).append(", ");
}
result.append("value: ").append(get()).append("]");
return result.toString();
}
}