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/**
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.
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*
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* Oracle and Java are registered trademarks of Oracle and/or its affiliates.
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* Other names may be trademarks of their respective owners.
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*
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common
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* Development and Distribution License("CDDL") (collectively, the
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* "License"). You may not use this file except in compliance with the
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* License. You can obtain a copy of the License at
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* http://www.netbeans.org/cddl-gplv2.html
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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* specific language governing permissions and limitations under the
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* License. When distributing the software, include this License Header
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* Notice in each file and include the License file at
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* nbbuild/licenses/CDDL-GPL-2-CP. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the GPL Version 2 section of the License file that
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* accompanied this code. If applicable, add the following below the
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* License Header, with the fields enclosed by brackets [] replaced by
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* your own identifying information:
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* "Portions Copyrighted [year] [name of copyright owner]"
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*
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* Contributor(s):
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*
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* The Original Software is NetBeans. The Initial Developer of the Original
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* Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.
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*
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* If you wish your version of this file to be governed by only the CDDL
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* or only the GPL Version 2, indicate your decision by adding
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* "[Contributor] elects to include this software in this distribution
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* under the [CDDL or GPL Version 2] license." If you do not indicate a
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* single choice of license, a recipient has the option to distribute
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* your version of this file under either the CDDL, the GPL Version 2 or
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* to extend the choice of license to its licensees as provided above.
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* However, if you add GPL Version 2 code and therefore, elected the GPL
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* Version 2 license, then the option applies only if the new code is
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* made subject to such option by the copyright holder.
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*/
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package org.apidesign.html.json.spi;
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import net.java.html.BrwsrCtx;
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import org.netbeans.html.json.impl.Bindings;
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import org.netbeans.html.json.impl.JSON;
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import org.netbeans.html.json.impl.PropertyBindingAccessor;
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import org.netbeans.html.json.impl.RcvrJSON;
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/** Describes a property when one is asked to
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* bind it
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*
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* @author Jaroslav Tulach <jtulach@netbeans.org>
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*/
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public abstract class PropertyBinding {
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PropertyBinding() {
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}
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static {
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new PropertyBindingAccessor() {
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@Override
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protected JSONCall newCall(BrwsrCtx ctx, RcvrJSON callback, String urlBefore, String urlAfter, String method, Object data) {
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return new JSONCall(ctx, callback, urlBefore, urlAfter, method, data);
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}
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@Override
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protected Bindings bindings(Proto proto, boolean initialize) {
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return initialize ? proto.initBindings() : proto.getBindings();
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}
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@Override
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protected void notifyChange(Proto proto, int propIndex) {
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proto.onChange(propIndex);
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}
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@Override
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protected Proto findProto(Proto.Type<?> type, Object object) {
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return type.protoFor(object);
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}
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@Override
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protected <Model> Model cloneTo(Proto.Type<Model> type, Model model, BrwsrCtx c) {
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return type.cloneTo(model, c);
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}
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@Override
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protected Object read(Proto.Type<?> from, BrwsrCtx c, Object data) {
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return from.read(c, data);
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}
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@Override
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protected <M> PropertyBinding newBinding(
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Proto.Type<M> access, Bindings<?> bindings, String name,
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int index, M model, boolean readOnly
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) {
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return new Impl(bindings, name, index, model, access, readOnly);
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}
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};
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}
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/** Name of the property this binding represents.
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* @return name of the property
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*/
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public abstract String getPropertyName();
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/** Changes value of the property. Can be called only on dedicated
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* thread. See {@link Technology#runSafe(java.lang.Runnable)}.
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*
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* @param v new value of the property
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*/
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public abstract void setValue(Object v);
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/** Obtains current value of the property this binding represents.
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* Can be called only on dedicated
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* thread. See {@link Technology#runSafe(java.lang.Runnable)}.
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*
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* @return the value or <code>null</code>
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*/
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public abstract Object getValue();
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/** Is this property read only? Or can one call {@link #setValue(java.lang.Object)}?
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*
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* @return true, if this property is read only
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*/
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public abstract boolean isReadOnly();
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private static final class Impl<M> extends PropertyBinding {
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public final String name;
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public final boolean readOnly;
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private final M model;
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private final Proto.Type<M> access;
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private final Bindings<?> bindings;
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private final int index;
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public Impl(Bindings<?> bindings, String name, int index, M model, Proto.Type<M> access, boolean readOnly) {
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this.bindings = bindings;
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this.name = name;
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this.index = index;
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this.model = model;
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this.access = access;
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this.readOnly = readOnly;
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}
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@Override
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public void setValue(Object v) {
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access.setValue(model, index, v);
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}
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@Override
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public Object getValue() {
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Object v = access.getValue(model, index);
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Object r = JSON.find(v, bindings);
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return r == null ? v : r;
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}
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@Override
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public boolean isReadOnly() {
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return readOnly;
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}
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@Override
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public String getPropertyName() {
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return name;
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}
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} // end of PBData
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}
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