/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.deltaspike.core.api.config.view;
import org.apache.deltaspike.core.api.literal.ViewControllerRefLiteral;
import org.apache.deltaspike.core.api.config.view.metadata.InlineViewMetaData;
import org.apache.deltaspike.core.spi.config.view.InlineMetaDataTransformer;
import org.apache.deltaspike.core.spi.config.view.TargetViewConfigProvider;
import org.apache.deltaspike.core.api.config.view.controller.ViewControllerRef;
import javax.enterprise.util.Nonbinding;
import javax.inject.Named;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
/**
* A reference to a view-config, applied on a view-controller. The opposite direction of {@link ViewControllerRef}.
*
* ViewRef annotation instances are not present at runtime as metadata, they are instead transformed to
* ViewControllerRef instances during deployment.
*/
@Target({ TYPE, METHOD })
@Retention(RUNTIME)
@Documented
@InlineViewMetaData(
targetViewConfigProvider = ViewRef.ViewRefTargetViewConfigProvider.class,
inlineMetaDataTransformer = ViewRef.ViewRefInlineMetaDataTransformer.class)
public @interface ViewRef
{
abstract class Manual implements ViewConfig
{
}
/**
* Specifies the views to bind to the view-controller.
*
* @return {@link ViewConfig}s of views bound to the view-controller
*/
@Nonbinding Class<? extends ViewConfig>[] config();
class ViewRefTargetViewConfigProvider implements TargetViewConfigProvider<ViewRef>
{
@Override
public Class<? extends ViewConfig>[] getTarget(ViewRef inlineMetaData)
{
return inlineMetaData.config();
}
}
class ViewRefInlineMetaDataTransformer implements InlineMetaDataTransformer<ViewRef, ViewControllerRef>
{
@Override
public ViewControllerRef convertToViewMetaData(ViewRef inlineMetaData, Class<?> sourceClass)
{
Named named = sourceClass.getAnnotation(Named.class);
String beanName;
if (named == null)
{
beanName = null;
}
else
{
beanName = named.value();
}
return new ViewControllerRefLiteral(sourceClass, beanName);
}
}
}