software copyright
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jiahong
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/**
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* 自然写互动课堂教学管理云平台软件 V1.0
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*
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* 数据模型 - 设备实体 / 作业实体 / 笔迹数据实体
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* 设备表(device)：MySQL
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* 作业表(assignment)：MySQL
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* 笔迹数据(stroke_data)：MongoDB
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*/
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package com.writech.cloud.model;
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import javax.persistence.*;
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import java.time.LocalDateTime;
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import java.util.*;
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// ==================== 设备实体 ====================
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/**
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* 设备注册表实体（MySQL）
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* 管理点阵笔、网关、终端设备、算力盒
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*/
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@Entity
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@Table(name = "device", indexes = {
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@Index(name = "idx_mac", columnList = "macAddr", unique = true),
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@Index(name = "idx_school_type", columnList = "schoolId, type"),
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@Index(name = "idx_classroom", columnList = "classroomId")
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})
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class Device {
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@Id
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@Column(length = 32)
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private String id;
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/** 设备类型：pen/gateway/terminal/edge_box */
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@Column(nullable = false, length = 16)
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private String type;
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/** 设备MAC地址（全局唯一） */
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@Column(nullable = false, length = 17, unique = true)
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private String macAddr;
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/** 设备序列号 */
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@Column(length = 32)
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private String serialNumber;
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/** 固件版本号 */
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@Column(length = 16)
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private String firmwareVersion;
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/** 绑定用户ID */
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@Column(length = 32)
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private String bindUserId;
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/** 所属学校ID */
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@Column(length = 32)
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private String schoolId;
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/** 所属教室ID */
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@Column(length = 32)
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private String classroomId;
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/** 设备状态：1=在线, 0=离线, -1=故障 */
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@Column(nullable = false)
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private int status = 0;
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/** 电池电量百分比（0-100，仅笔设备） */
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private Integer batteryLevel;
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/** 当前连接的笔数量（仅网关设备） */
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private Integer connectedPenCount;
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/** CPU使用率（仅网关/算力盒） */
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private Double cpuUsage;
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/** 内存使用率（仅网关/算力盒） */
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private Double memoryUsage;
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/** 注册时间 */
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@Column(nullable = false)
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private LocalDateTime registerTime;
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/** 最后心跳时间 */
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private LocalDateTime lastHeartbeat;
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// Getter/Setter
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public String getId() { return id; }
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public void setId(String id) { this.id = id; }
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public String getType() { return type; }
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public void setType(String type) { this.type = type; }
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public String getMacAddr() { return macAddr; }
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public void setMacAddr(String macAddr) { this.macAddr = macAddr; }
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public String getSerialNumber() { return serialNumber; }
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public void setSerialNumber(String sn) { this.serialNumber = sn; }
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public String getFirmwareVersion() { return firmwareVersion; }
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public void setFirmwareVersion(String v) { this.firmwareVersion = v; }
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public String getBindUserId() { return bindUserId; }
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public void setBindUserId(String id) { this.bindUserId = id; }
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public String getSchoolId() { return schoolId; }
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public void setSchoolId(String id) { this.schoolId = id; }
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public String getClassroomId() { return classroomId; }
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public void setClassroomId(String id) { this.classroomId = id; }
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public int getStatus() { return status; }
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public void setStatus(int s) { this.status = s; }
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public Integer getBatteryLevel() { return batteryLevel; }
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public void setBatteryLevel(Integer l) { this.batteryLevel = l; }
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public Integer getConnectedPenCount() { return connectedPenCount; }
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public void setConnectedPenCount(Integer c) { this.connectedPenCount = c; }
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public Double getCpuUsage() { return cpuUsage; }
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public void setCpuUsage(Double u) { this.cpuUsage = u; }
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public Double getMemoryUsage() { return memoryUsage; }
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public void setMemoryUsage(Double u) { this.memoryUsage = u; }
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public LocalDateTime getRegisterTime() { return registerTime; }
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public void setRegisterTime(LocalDateTime t) { this.registerTime = t; }
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public LocalDateTime getLastHeartbeat() { return lastHeartbeat; }
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public void setLastHeartbeat(LocalDateTime t) { this.lastHeartbeat = t; }
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}
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// ==================== 作业实体 ====================
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/**
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* 作业/试卷发布表实体（MySQL）
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*/
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@Entity
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@Table(name = "assignment", indexes = {
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@Index(name = "idx_class_status", columnList = "classId, status"),
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@Index(name = "idx_teacher", columnList = "teacherId")
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})
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class Assignment {
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@Id
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@Column(length = 32)
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private String id;
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/** 发布教师ID */
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@Column(nullable = false, length = 32)
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private String teacherId;
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/** 班级ID */
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@Column(nullable = false, length = 32)
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private String classId;
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/** 作业标题 */
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@Column(nullable = false, length = 128)
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private String title;
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/** 类型：homework(作业)/exam(考试)/practice(练习) */
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@Column(nullable = false, length = 16)
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private String type;
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/** 学科 */
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@Column(length = 32)
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private String subject;
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/** 截止时间 */
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private LocalDateTime deadline;
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/** 状态：draft/published/closed/graded */
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@Column(nullable = false, length = 16)
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private String status;
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/** 发布时间 */
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private LocalDateTime publishTime;
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/** 满分值 */
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private double totalScore;
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/** 题目总数 */
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private int questionCount;
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/** 关联的点阵码页面ID列表（JSON数组） */
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@Column(columnDefinition = "TEXT")
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private String dotCodePagesJson;
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@Transient
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private List<String> dotCodePages;
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// Getter/Setter
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public String getId() { return id; }
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public void setId(String id) { this.id = id; }
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public String getTeacherId() { return teacherId; }
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public void setTeacherId(String id) { this.teacherId = id; }
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public String getClassId() { return classId; }
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public void setClassId(String id) { this.classId = id; }
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public String getTitle() { return title; }
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public void setTitle(String t) { this.title = t; }
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public String getType() { return type; }
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public void setType(String t) { this.type = t; }
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public String getSubject() { return subject; }
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public void setSubject(String s) { this.subject = s; }
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public LocalDateTime getDeadline() { return deadline; }
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public void setDeadline(LocalDateTime d) { this.deadline = d; }
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public String getStatus() { return status; }
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public void setStatus(String s) { this.status = s; }
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public LocalDateTime getPublishTime() { return publishTime; }
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public void setPublishTime(LocalDateTime t) { this.publishTime = t; }
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public double getTotalScore() { return totalScore; }
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public void setTotalScore(double s) { this.totalScore = s; }
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public int getQuestionCount() { return questionCount; }
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public void setQuestionCount(int c) { this.questionCount = c; }
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public List<String> getDotCodePages() { return dotCodePages; }
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public void setDotCodePages(List<String> p) { this.dotCodePages = p; }
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}
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// ==================== 笔迹数据实体 ====================
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/**
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* 笔迹原始数据实体（MongoDB）
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*
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* JSON文档结构：
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* {
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* student_id: "...",
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* assignment_id: "...",
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* pen_id: "...",
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* page_id: "...",
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* strokes: [{x, y, pressure, timestamp, penUp}, ...],
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* createTime: "...",
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* processingStatus: "received/processing/completed/failed"
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* }
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*/
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class StrokeData {
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private String id;
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private String studentId;
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private String assignmentId;
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private String penId;
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private String pageId;
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private List<Map<String, Object>> strokes;
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private LocalDateTime createTime;
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private LocalDateTime processedTime;
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private String processingStatus; // received/processing/completed/failed
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public String getId() { return id; }
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public void setId(String id) { this.id = id; }
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public String getStudentId() { return studentId; }
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public void setStudentId(String id) { this.studentId = id; }
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public String getAssignmentId() { return assignmentId; }
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public void setAssignmentId(String id) { this.assignmentId = id; }
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public String getPenId() { return penId; }
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public void setPenId(String id) { this.penId = id; }
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public String getPageId() { return pageId; }
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public void setPageId(String id) { this.pageId = id; }
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public List<Map<String, Object>> getStrokes() { return strokes; }
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public void setStrokes(List<Map<String, Object>> s) { this.strokes = s; }
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public LocalDateTime getCreateTime() { return createTime; }
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public void setCreateTime(LocalDateTime t) { this.createTime = t; }
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public LocalDateTime getProcessedTime() { return processedTime; }
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public void setProcessedTime(LocalDateTime t) { this.processedTime = t; }
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public String getProcessingStatus() { return processingStatus; }
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public void setProcessingStatus(String s) { this.processingStatus = s; }
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}
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