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/*
 * Copyright 2010 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.uibinder.client;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Mark a method as the appropriate way to add a child widget to the parent
 * class.
 * 
 * 

* The limit attribute specifies the number of times the function can be safely * called. If no limit is specified, it is assumed to be unlimited. Only one * child is permitted under each custom tag specified so the limit represents * the number of times the tag can be present in any object. * *

* The tagname attribute indicates the name of the tag this method will handle * in the {@link UiBinder} template. If none is specified, the method name must * begin with "add", and the tag is assumed to be the remaining characters * (after the "add" prefix") entirely in lowercase. * *

* For example, * * @UiChild MyWidget#addCustomChild(Widget w) and * *

 *   <p:MyWidget>
 *     <p:customchild>
 *       <g:SomeWidget />
 *     </p:customchild>
 *   </p:MyWidget>
 * 
* would invoke the addCustomChild function to add an instance of * SomeWidget. */ @Documented @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.METHOD) public @interface UiChild { int limit() default -1; String tagname() default ""; }




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