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/*******************************************************************************
* Copyright (c) 2008, 2015 Matthew Hall and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Matthew Hall - initial API and implementation (bug 194734)
* Matthew Hall - bug 195222, 264307, 265561
* Ovidio Mallo - bug 306633
******************************************************************************/
package org.eclipse.core.internal.databinding.beans;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.eclipse.core.databinding.observable.list.ListDiff;
import org.eclipse.core.databinding.property.INativePropertyListener;
import org.eclipse.core.databinding.property.ISimplePropertyListener;
import org.eclipse.core.databinding.property.list.SimpleListProperty;
/**
* @since 3.3
*
*/
public class PojoListProperty extends SimpleListProperty {
private final PropertyDescriptor propertyDescriptor;
private final Class elementType;
/**
* @param propertyDescriptor
* @param elementType
*/
public PojoListProperty(PropertyDescriptor propertyDescriptor,
Class elementType) {
this.propertyDescriptor = propertyDescriptor;
this.elementType = elementType == null ? BeanPropertyHelper
.getCollectionPropertyElementType(propertyDescriptor)
: elementType;
}
@Override
public Object getElementType() {
return elementType;
}
@Override
protected List doGetList(Object source) {
return asList(BeanPropertyHelper.readProperty(source,
propertyDescriptor));
}
private List asList(Object propertyValue) {
if (propertyValue == null)
return Collections.EMPTY_LIST;
if (propertyDescriptor.getPropertyType().isArray())
return Arrays.asList((Object[]) propertyValue);
return (List) propertyValue;
}
@Override
protected void doSetList(Object source, List list, ListDiff diff) {
doSetList(source, list);
}
@Override
protected void doSetList(Object source, List list) {
BeanPropertyHelper.writeProperty(source, propertyDescriptor,
convertListToBeanPropertyType(list));
}
private Object convertListToBeanPropertyType(List list) {
Object propertyValue = list;
if (propertyDescriptor.getPropertyType().isArray()) {
Class componentType = propertyDescriptor.getPropertyType()
.getComponentType();
Object[] array = (Object[]) Array.newInstance(componentType, list
.size());
list.toArray(array);
propertyValue = array;
}
return propertyValue;
}
@Override
public INativePropertyListener adaptListener(
ISimplePropertyListener listener) {
return null;
}
@Override
public String toString() {
String s = BeanPropertyHelper.propertyName(propertyDescriptor) + "[]"; //$NON-NLS-1$
if (elementType != null)
s += "<" + BeanPropertyHelper.shortClassName(elementType) + ">"; //$NON-NLS-1$//$NON-NLS-2$
return s;
}
}
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