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Central module for Tapestry, containing interfaces to the Java
Servlet API and all core services and components.
// Copyright 2010 The Apache Software Foundation
//
// 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.apache.tapestry5.services.meta;
import java.lang.annotation.Annotation;
import org.apache.tapestry5.ioc.internal.util.InternalUtils;
import org.apache.tapestry5.model.MutableComponentModel;
/**
* Implementation of {@link MetaDataExtractor} that is used to set a fixed
* value for a fixed meta-data key, when a given annotation is present.
*
* @since 5.2.0
*/
public class FixedExtractor implements MetaDataExtractor
{
private final String key;
private final String value;
/** Defaults the value to "true". */
public FixedExtractor(String key)
{
this(key, "true");
}
public FixedExtractor(String key, String value)
{
assert InternalUtils.isNonBlank(key);
this.key = key;
assert InternalUtils.isNonBlank(value);
this.value = value;
}
public void extractMetaData(MutableComponentModel model, T annotation)
{
model.setMeta(key, value);
}
}