javafx.beans.property.ReadOnlyListProperty Maven / Gradle / Ivy
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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package javafx.beans.property;
import java.util.List;
import java.util.ListIterator;
import java.util.Objects;
import javafx.beans.binding.Bindings;
import javafx.beans.binding.ListExpression;
import javafx.collections.ObservableList;
/**
* Superclass for all readonly properties wrapping an {@link javafx.collections.ObservableList}.
*
* @see javafx.collections.ObservableList
* @see javafx.beans.value.ObservableListValue
* @see javafx.beans.binding.ListExpression
* @see ReadOnlyProperty
*
* @param the type of the {@code List} elements
* @since JavaFX 2.1
*/
public abstract class ReadOnlyListProperty extends ListExpression
implements ReadOnlyProperty> {
/**
* The constructor of {@code ReadOnlyListProperty}.
*/
public ReadOnlyListProperty() {
}
/**
* Creates a bidirectional content binding of the {@link javafx.collections.ObservableList}, that is
* wrapped in this {@code ReadOnlyListProperty}, and another {@code ObservableList}.
*
* A bidirectional content binding ensures that the content of two {@code ObservableLists} is the
* same. If the content of one of the lists changes, the other one will be updated automatically.
*
* @param list the {@code ObservableList} this property should be bound to
* @throws NullPointerException if {@code list} is {@code null}
* @throws IllegalArgumentException if {@code list} is the same list that this {@code ReadOnlyListProperty} points to
*/
public void bindContentBidirectional(ObservableList list) {
Bindings.bindContentBidirectional(this, list);
}
/**
* Deletes a bidirectional content binding between the {@link javafx.collections.ObservableList}, that is
* wrapped in this {@code ReadOnlyListProperty}, 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 list that this {@code ReadOnlyListProperty} points to
*/
public void unbindContentBidirectional(Object object) {
Bindings.unbindContentBidirectional(this, object);
}
/**
* Creates a content binding between the {@link javafx.collections.ObservableList}, that is
* wrapped in this {@code ReadOnlyListProperty}, and another {@code ObservableList}.
*
* A content binding ensures that the content of the wrapped {@code ObservableLists} is the
* same as that of the other list. If the content of the other list changes, the wrapped list will be updated
* automatically. Once the wrapped list is bound to another list, you must not change it directly.
*
* @param list the {@code ObservableList} this property should be bound to
* @throws NullPointerException if {@code list} is {@code null}
* @throws IllegalArgumentException if {@code list} is the same list that this {@code ReadOnlyListProperty} points to
*/
public void bindContent(ObservableList list) {
Bindings.bindContent(this, list);
}
/**
* Deletes a content binding between the {@link javafx.collections.ObservableList}, that is
* wrapped in this {@code ReadOnlyListProperty}, 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 list that this {@code ReadOnlyListProperty} points to
*/
public void unbindContent(Object object) {
Bindings.unbindContent(this, object);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof List otherList) || size() != otherList.size()) {
return false;
}
ListIterator e1 = listIterator();
ListIterator e2 = otherList.listIterator();
while (e1.hasNext() && e2.hasNext()) {
if (!Objects.equals(e1.next(), e2.next())) {
return false;
}
}
return true;
}
@Override
public int hashCode() {
int hashCode = 1;
for (E e : this)
hashCode = 31*hashCode + (e==null ? 0 : e.hashCode());
return hashCode;
}
/**
* Returns a string representation of this {@code ReadOnlyListProperty} object.
* @return a string representation of this {@code ReadOnlyListProperty} object.
*/
@Override
public String toString() {
final Object bean = getBean();
final String name = getName();
final StringBuilder result = new StringBuilder(
"ReadOnlyListProperty [");
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();
}
}