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一种非常巧妙的设计模式

news 2026/3/27 4:32:44

interface ValueSetter<T> {public void set(T entity, Object v);}interface ValueGetter<T> {public Object get(T entity);}public class BaseHelper<T extends BaseEntity> implements Converter {public static final String ID = "id";public static final String PARENT_ID = "parentId";public static final String UUID = "uuid";public static final String DELETED = "deleted";public static final String DISABLED = "disabled";public static final String CREATE_USER = "createUser";public static final String CREATE_TIME = "createTime";public static final String UPDATE_TIME = "updateTime";public static final String UPDATE_USER = "updateUser";public static final String DATA_VERSION = "dataVersion";public static final String ORDER_NUM = "orderNum";public Map<String, ValueGetter<T>> baseGetterMap() {Map<String, ValueGetter<T>> map = new TreeMap<>();map.put(ID, T::getId);map.put(UUID, T::getUuid);map.put(DISABLED, T::getDisabled);map.put(CREATE_USER, T::getCreateUser);map.put(CREATE_TIME, T::getCreateTime);map.put(UPDATE_TIME, T::getUpdateTime);map.put(UPDATE_USER, T::getUpdateUser);map.put(DATA_VERSION, T::getDataVersion);return map;}public Map<String, ValueSetter<T>> baseSetterMap() {Map<String, ValueSetter<T>> map = new TreeMap<>();map.put(ID, (T e, Object v) -> e.setId(toLong(v)));map.put(UUID, (T e, Object v) -> e.setUuid(toString(v)));map.put(DISABLED, (T e, Object v) -> e.setDisabled(toBoolean(v)));map.put(CREATE_USER, (T e, Object v) -> e.setCreateUser(toLong(v)));map.put(CREATE_TIME, (T e, Object v) -> e.setCreateTime(toDate(v)));map.put(UPDATE_TIME, (T e, Object v) -> e.setUpdateTime(toDate(v)));map.put(UPDATE_USER, (T e, Object v) -> e.setUpdateUser(toLong(v)));map.put(DATA_VERSION, (T e, Object v) -> e.setDataVersion(toLong(v)));return map;}public Map<String, Class<?>> baseFieldTypeInfo() {Map<String, Class<?>> map = new TreeMap<>();map.put(ID, Long.class);map.put(UUID, String.class);map.put(DISABLED, Boolean.class);map.put(CREATE_USER, Long.class);map.put(CREATE_TIME, Date.class);map.put(UPDATE_TIME, Date.class);map.put(UPDATE_USER, Long.class);map.put(DATA_VERSION, Long.class);return map;}
}

 1 package tech.abcd.core.entity.helper;
 2 
 3 import java.util.*;
 4 
 5 import org.springframework.stereotype.Component;
 6 
 7 import tech.zqxx.common.helper.entity.BaseEntity;
 8 import tech.zqxx.common.helper.entity.BaseHelper;
 9 import tech.zqxx.common.helper.entity.DomainHelper;
10 import tech.zqxx.common.helper.entity.ValueGetter;
11 import tech.zqxx.common.helper.entity.ValueSetter;
12 import tech.zqxx.core.entity.*;
13 
14 /****
15  * 本代码由生成器生成，请勿修改
16  */
17 @Component
18 public class SysDeptHelper extends BaseHelper<SysDept> implements DomainHelper<SysDept>  {
19 
20     // 字段名常量定义
21     public static final String DEPT_NAME = "deptName";
22     public static final String LEADER = "leader";
23     public static final String DATA_VERSION = "dataVersion";
24     public static final String ORDER_NUM = "orderNum";
25     public static final String UPDATE_USER = "updateUser";
26     public static final String REMARK = "remark";
27     public static final String UPDATE_TIME = "updateTime";
28     public static final String UUID = "uuid";
29     public static final String PARENT_ID = "parentId";
30     public static final String CREATE_TIME = "createTime";
31     public static final String DISABLED = "disabled";
32     public static final String CREATE_USER = "createUser";
33     public static final String ID = "id";
34 
35   
36 
37     @Override
38     public Class<SysDept> getDomainClass() {
39         return SysDept.class;
40     }
41 
42     @Override
43     public SysDept create() {
44         return new SysDept();
45     }
46 
47     @Override
48     public Map<String, ValueGetter<SysDept>> getterMap() {
49         Map<String, ValueGetter<SysDept>> map = new HashMap<>();
50         map.put(DEPT_NAME, SysDept::getDeptName);
51         map.put(LEADER, SysDept::getLeader);
52         map.put(ORDER_NUM, SysDept::getOrderNum);
53         map.put(REMARK, SysDept::getRemark);
54         map.put(PARENT_ID, SysDept::getParentId);
55         map.putAll(baseGetterMap());
56         return Collections.unmodifiableMap(map);
57     }
58 
59     @Override
60     public Map<String, ValueSetter<SysDept>> setterMap() {
61         Map<String, ValueSetter<SysDept>> map = new HashMap<>();
62         map.put(DEPT_NAME, (entity, v) -> entity.setDeptName(toString(v)));
63         map.put(LEADER, (entity, v) -> entity.setLeader(toLong(v)));
64         map.put(ORDER_NUM, (entity, v) -> entity.setOrderNum(toLong(v)));
65         map.put(REMARK, (entity, v) -> entity.setRemark(toString(v)));
66         map.put(PARENT_ID, (entity, v) -> entity.setParentId(toLong(v)));
67         map.putAll(baseSetterMap());
68         return Collections.unmodifiableMap(map);
69     }
70 
71     @Override
72     public Map<String, Class<? extends BaseEntity>> fieldComponentTypeInfo() {
73         Map<String, Class<? extends BaseEntity>> map = new HashMap<>();
74         return Collections.unmodifiableMap(map);
75     }
76 
77     @Override
78     public Map<String, Class<?>> fieldTypeInfo() {
79         Map<String, Class<?>> map = new HashMap<>();
80         
81         map.put(DEPT_NAME, String.class);
82         map.put(LEADER, Long.class);
83         map.put(ORDER_NUM, Long.class);
84         map.put(REMARK, String.class);
85         map.put(PARENT_ID, Long.class);
86         map.putAll(baseFieldTypeInfo());
87         return Collections.unmodifiableMap(map);
88     }
89 
90 }