StandardCopyOption.java

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package java.nio.file;

/**
 * Defines the standard copy options.
 *
 * @since 1.7
 */
// 文件复制/移动操作的标准可选参数
public enum StandardCopyOption implements CopyOption {
    
    /**
     * Replace an existing file if it exists.
     */
    REPLACE_EXISTING,   // 允许覆盖已存在的文件(不能覆盖目录)
    
    /**
     * Copy attributes to the new file.
     */
    COPY_ATTRIBUTES,    // 复制(安全)属性信息
    
    /**
     * Move the file as an atomic file system operation.
     */
    ATOMIC_MOVE;        // 原子地移动(禁止在不同的磁盘间复制)
    
}