org.zkoss.bind.proxy.ListModelSetProxy Maven / Gradle / Ivy
/** ListModelSetProxy.java.
Purpose:
Description:
History:
Mon Jun 08 11:30:22 CST 2021, Created by jameschu
Copyright (C) 2021 Potix Corporation. All Rights Reserved.
*/
package org.zkoss.bind.proxy;
import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.util.Collection;
import java.util.Comparator;
import java.util.Iterator;
import java.util.Set;
import javassist.util.proxy.MethodHandler;
import javassist.util.proxy.Proxy;
import org.zkoss.bind.BindContext;
import org.zkoss.bind.annotation.ImmutableElements;
import org.zkoss.bind.sys.FormBinding;
import org.zkoss.bind.sys.SavePropertyBinding;
import org.zkoss.lang.Objects;
import org.zkoss.util.Pair;
import org.zkoss.zk.ui.WrongValueException;
import org.zkoss.zul.ListModelSet;
import org.zkoss.zul.event.ListDataListener;
import org.zkoss.zul.event.PagingListener;
import org.zkoss.zul.ext.SelectionControl;
/**
* A ListModelSet Proxy
*
* @author jameschu
* @since 9.6.0
*/
public class ListModelSetProxy extends ListModelSet implements Proxy, FormProxyObject, Serializable {
private static final long serialVersionUID = 20210608113022L;
private ListModelSet _cache;
private ListModelSet _origin;
private boolean _dirty;
private boolean isImmutableElements;
private ProxyNode _node;
public ListModelSetProxy(ListModelSet origin, Annotation[] callerAnnots) {
_origin = origin;
_cache = initCache();
if (callerAnnots != null) {
for (Annotation annot : callerAnnots) {
if (annot.annotationType().isAssignableFrom(ImmutableElements.class)) {
isImmutableElements = true;
break;
}
}
}
resetFromOrigin();
}
private ListModelSet initCache() {
ListModelSet cache = new ListModelSet<>(getOriginObject().size());
return cache;
}
private ListModelSet getCache() {
return _cache;
}
public void onDirtyChange() {
ProxyHelper.callOnDirtyChange(_node);
}
public void onDataChange(Object o) {
ProxyHelper.callOnDataChange(_node, new Object[]{o, "."});
}
protected void setDirty(boolean d) {
if (_dirty != d) {
_dirty = d;
onDirtyChange();
}
if (d)
onDataChange(this);
}
//-- AbstractListModel --//
public void addListDataListener(ListDataListener l) {
getCache().addListDataListener(l); //initial setting
}
public void removeListDataListener(ListDataListener l) {
getCache().removeListDataListener(l); //initial setting
}
public Set getSelection() {
return getCache().getSelection();
}
public void setSelection(Collection selection) {
getCache().setSelection(selection);
setDirty(true);
}
public boolean isSelected(Object obj) {
return getCache().isSelected(obj);
}
public boolean isSelectionEmpty() {
return getCache().isSelectionEmpty();
}
public boolean addToSelection(E obj) {
boolean result = getCache().addToSelection(obj);
if (result)
setDirty(true);
return result;
}
public boolean removeFromSelection(Object obj) {
boolean result = getCache().removeFromSelection(obj);
if (result)
setDirty(true);
return result;
}
public void clearSelection() {
if (!getCache().getSelection().isEmpty()) {
getCache().clearSelection();
setDirty(true);
}
}
public void setMultiple(boolean multiple) {
if (getCache().isMultiple() != multiple) {
getCache().setMultiple(multiple);
setDirty(true);
}
}
public void setSelectionControl(SelectionControl ctrl) {
getCache().setSelectionControl(ctrl); //initial setting
}
public SelectionControl getSelectionControl() {
return getCache().getSelectionControl(); //initial setting
}
public int getPageSize() {
return getCache().getPageSize();
}
public void setPageSize(int size) throws WrongValueException {
getCache().setPageSize(size);
setDirty(true);
}
public int getPageCount() {
return getCache().getPageCount();
}
public int getActivePage() {
return getCache().getActivePage();
}
public void setActivePage(int pg) throws WrongValueException {
getCache().setActivePage(pg);
setDirty(true);
}
public void addPagingEventListener(PagingListener l) {
getCache().addPagingEventListener(l); //initial setting
}
public void removePagingEventListener(PagingListener l) {
getCache().removePagingEventListener(l); //initial setting
}
//-- ListModelSet --//
public Set getInnerSet() {
return getCache().getInnerSet();
}
public int getSize() {
return getCache().getSize();
}
public E getElementAt(int j) {
return getCache().getElementAt(j);
}
public boolean notifyChange(E element) {
return getCache().notifyChange(element);
}
//-- Set --//
public boolean add(E o) {
if (getCache().add(createProxyObject(o))) {
setDirty(true);
return true;
}
return false;
}
public boolean addAll(Collection c) {
boolean modified = false;
Iterator e = c.iterator();
while (e.hasNext()) {
if (add(e.next()))
modified = true;
}
if (modified)
setDirty(true);
return modified;
}
public void clear() {
getCache().clear();
setDirty(true);
}
public boolean contains(Object o) {
Iterator e = iterator();
if (o == null) {
while (e.hasNext())
if (testEquals(e.next(), null))
return true;
} else {
while (e.hasNext())
if (testEquals(o, e.next()))
return true;
}
return false;
}
public boolean containsAll(Collection c) {
Iterator e = c.iterator();
while (e.hasNext())
if (!contains(e.next()))
return false;
return true;
}
public boolean equals(Object o) {
return getCache().equals(o);
}
public int hashCode() {
return getCache().hashCode();
}
public boolean isEmpty() {
return getCache().isEmpty();
}
public String toString() {
return getCache().toString();
}
public Iterator iterator() {
return getCache().iterator();
}
public boolean remove(Object o) {
if (getCache().remove(createProxyObject(o))) {
setDirty(true);
return true;
}
return false;
}
public int indexOf(Object o) {
return getCache().indexOf(o);
}
public boolean removeAll(Collection c) {
boolean modified = false;
Iterator e = iterator();
c = createProxyObject(c); // use a proxy object to compare
while (e.hasNext()) {
if (c.contains(e.next())) {
e.remove();
modified = true;
}
}
if (modified)
setDirty(true);
return modified;
}
public boolean retainAll(Collection c) {
boolean modified = false;
Iterator e = iterator();
c = createProxyObject(c); // use a proxy object to compare
while (e.hasNext()) {
if (!c.contains(e.next())) {
e.remove();
modified = true;
}
}
if (modified)
setDirty(true);
return modified;
}
public int size() {
return getCache().size();
}
public Object[] toArray() {
return getCache().toArray();
}
public T[] toArray(T[] a) {
return getCache().toArray(a);
}
//-- Sortable --//
public void sort(Comparator cmpr, final boolean ascending) {
getCache().sort(cmpr, ascending);
setDirty(true);
}
public void sort() {
getCache().sort();
setDirty(true);
}
public String getSortDirection(Comparator cmpr) {
return getCache().getSortDirection(cmpr);
}
public Object clone() {
return getCache().clone();
}
//For Backward Compatibility//
public void addSelection(E obj) {
addToSelection(obj);
}
public void removeSelection(Object obj) {
removeFromSelection(obj);
}
//-- Proxy --//
public void setHandler(MethodHandler mi) {
throw new UnsupportedOperationException("Not support!");
}
//-- FormProxyObject --//
public ListModelSet getOriginObject() {
return _origin;
}
public void resetFromOrigin() {
getCache().clear();
setDirty(false);
for (E e : getOriginObject()) {
getCache().add(createProxyObject(e));
}
}
public void submitToOrigin(BindContext ctx) {
Collection origin = ((Collection) getOriginObject());
origin.clear();
for (E e : _cache) {
if (e instanceof FormProxyObject) {
FormProxyObject proxy = (FormProxyObject) e;
proxy.submitToOrigin(ctx);
origin.add((E) proxy.getOriginObject());
} else {
origin.add(e);
}
}
setDirty(false);
}
public boolean isFormDirty() {
if (_dirty)
return true;
Iterator e = iterator();
while (e.hasNext()) {
Object o = e.next();
if (o instanceof FormProxyObject) {
if (((FormProxyObject) o).isFormDirty())
return true;
}
}
return false;
}
public void setFormOwner(Object owner, FormBinding binding) {
throw new IllegalAccessError("Not supported");
}
public void setPath(String property, ProxyNode parent) {
if (property == null && _node != null) { // means update
_node.setParent(parent);
} else {
_node = new ProxyNodeImpl(property, parent);
for (E e : _cache) {
if (e instanceof FormProxyObject)
((FormProxyObject) e).setPath("[$INDEX$]", _node);
}
}
}
public void cacheSavePropertyBinding(String property, SavePropertyBinding s) {
ProxyHelper.cacheSavePropertyBinding(_node, _node.getProperty() + property, s);
}
public Set> collectCachedSavePropertyBinding() {
throw new UnsupportedOperationException("Not support!");
}
protected static boolean testEquals(Object e, Object o) {
if (e == o) {
return true;
}
if (e instanceof FormProxyObject) {
Object eo = ((FormProxyObject) e).getOriginObject();
Object oo = o;
if (o instanceof FormProxyObject) {
oo = ((FormProxyObject) o).getOriginObject();
}
if (Objects.equals(eo, oo))
return true;
} else if (o instanceof FormProxyObject) {
if (Objects.equals(e, ((FormProxyObject) o).getOriginObject()))
return true;
} else {
if (Objects.equals(e, o))
return true;
}
return false;
}
protected T createProxyObject(T t) {
T p = isImmutableElements ? t : ProxyHelper.createProxyIfAny(t);
if (p instanceof FormProxyObject)
((FormProxyObject) p).setPath("[$INDEX$]", _node);
return p;
}
}