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/*
* Copyright 2014 - Present Rafael Winterhalter
*
* 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 net.bytebuddy.implementation.attribute;
/**
* An annotation retention strategy decides if annotations that are contained within a class file are preserved upon redefining
* or rebasing a method. When annotations are retained, it is important not to define annotations explicitly that are already
* defined. When annotations are retained, they are retained in their original format, i.e. default values that were not included
* in the class file are not added or skipped as determined by a {@link AnnotationValueFilter}.
*/
public enum AnnotationRetention {
/**
* Enables annotation retention, i.e. annotations within an existing class files are preserved as they are.
*/
ENABLED(true),
/**
* Disables annotation retention, i.e. annotations within an existing class files are discarded.
*/
DISABLED(false);
/**
* {@code true} if annotation retention is enabled.
*/
private final boolean enabled;
/**
* Creates an annotation retention strategy.
*
* @param enabled {@code true} if annotation retention is enabled.
*/
AnnotationRetention(boolean enabled) {
this.enabled = enabled;
}
/**
* Resolves an annotation retention from a boolean value.
*
* @param enabled {@code true} if annotation retention is enabled.
* @return An enabled annotation retention if the value is {@code true}.
*/
public static AnnotationRetention of(boolean enabled) {
return enabled
? ENABLED
: DISABLED;
}
/**
* Returns {@code true} if annotation retention is enabled.
*
* @return {@code true} if annotation retention is enabled.
*/
public boolean isEnabled() {
return enabled;
}
}