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org.stjs.javascript.annotation.Adapter Maven / Gradle / Ivy
/**
* Copyright 2011 Alexandru Craciun, Eyal Kaspi
*
* 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 org.stjs.javascript.annotation;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* This annotates adapter classes. These are classes that are used to supply methods for Java types when they
* don't have a method that their Javascript counterpart has. For example for Number in Javascript you can do
* number.toFixed(2). As in Java this method does not exist and as the Java Number-derived classes are all final, the
* only alternative is to put this method in another class - an adapter class. All the methods of an adapter class must
* have their first parameter the object to which the method is applied. The other parameters are the parameters
* normally supplied to the Javascript method. For the number.toFixed example, the adapter will have a method
* NumberAdapter.toFixed(String number, int position). The generated javascript code is the expected one:
* number.toFixer(position).
*
* Note: The adapter's method must be all static.
*
* @author acraciun
*/
@Target({ ElementType.TYPE, ElementType.PACKAGE })
@Retention(RetentionPolicy.RUNTIME)
public @interface Adapter {
}
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