com.google.gwt.autobean.client.impl.JsniCreatorMap Maven / Gradle / Ivy
/*
* Copyright 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.autobean.client.impl;
import com.google.gwt.autobean.shared.AutoBean;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.core.client.JsArray;
/**
* Used in prod-mode code to create instances of generated AutoBean subtypes via
* JSNI references to their constructor methods.
*
* AutoBeans has moved to
* com.google.web.bindery.autobeans. This package will be
* removed in a future version of GWT.
*/
@Deprecated
public final class JsniCreatorMap extends JavaScriptObject {
public static JsniCreatorMap createMap() {
return JavaScriptObject.createObject().cast();
}
/*
* Structure is a string map of class literal names to the no-arg and one-arg
* constructors of a generated AutoBean subtype.
*/
protected JsniCreatorMap() {
}
public void add(Class clazz, JsArray constructors) {
assert constructors.length() == 2 : "Expecting two constructor references";
set(clazz.getName(), constructors);
}
public AutoBean create(Class clazz, AbstractAutoBeanFactory factory) {
JsArray arr = get(clazz.getName());
if (arr != null && arr.get(0) != null) {
return invoke(arr.get(0), factory, null);
}
return null;
}
public AutoBean create(Class clazz,
AbstractAutoBeanFactory factory, Object delegate) {
JsArray arr = get(clazz.getName());
if (arr != null) {
assert arr.get(1) != null : "No delegate-based constructor";
return invoke(arr.get(1), factory, delegate);
}
return null;
}
private native JsArray get(String key) /*-{
return this[key];
}-*/;
private native AutoBean invoke(JavaScriptObject fn, Object arg1,
Object arg2)/*-{
return fn(arg1, arg2);
}-*/;
private native void set(String key, JsArray arr) /*-{
this[key] = arr;
}-*/;
}