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/*
 * Copyright lzhpo
 *
 * 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 com.lzhpo.sensitive.annocation;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * @author lzhpo
 */
@Inherited
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.ANNOTATION_TYPE})
public @interface SensitiveKeepLength {

    /**
     * Pre-reserved digits
     *
     *      * If less than or equal to 0, it means ignore
     * 
     *
     * @return pre-reserved digits
     * @throws IllegalArgumentException If it is less than -1, an exception will be thrown
     */
    int preKeep();

    /**
     * Post-reserved digits
     *
     *      * If less than or equal to 0, it means ignore
     * 
     *
     * @return post-reserved digits
     * @throws IllegalArgumentException If it is less than -1, an exception will be thrown
     */
    int postKeep();
}