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/*
 * 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 javax.security.enterprise.credential;

public abstract class AbstractClearableCredential implements Credential {

    private volatile boolean cleared = false;

    @Override
    public final boolean isCleared() {
        return cleared;
    }

    protected final void setCleared() {
        this.cleared = true;
    }

    @Override
    public final void clear() {
        clearCredential();
        setCleared();
    }

    protected abstract void clearCredential();
}