mirror of
https://gitee.com/best_handsome/mybatis-plus-join
synced 2025-07-25 00:00:12 +08:00
优化对TypeHandle的支持
This commit is contained in:
yulichang
parent
d260884a3c
commit
e3a9d4f94c
@ -1,13 +1,9 @@
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package com.github.yulichang.interceptor;
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import com.baomidou.mybatisplus.annotation.TableField;
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import com.baomidou.mybatisplus.core.metadata.TableFieldInfo;
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import com.baomidou.mybatisplus.core.metadata.TableInfo;
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import com.baomidou.mybatisplus.core.metadata.TableInfoHelper;
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import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
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import com.baomidou.mybatisplus.core.toolkit.Constants;
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import com.baomidou.mybatisplus.core.toolkit.StringPool;
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import com.baomidou.mybatisplus.core.toolkit.StringUtils;
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import com.baomidou.mybatisplus.core.toolkit.*;
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import com.github.yulichang.interfaces.MPJBaseJoin;
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import com.github.yulichang.method.MPJResultType;
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import com.github.yulichang.toolkit.Constant;
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@ -37,7 +33,6 @@ import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.stream.Collectors;
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/**
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* 连表拦截器
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@ -58,6 +53,11 @@ public class MPJInterceptor implements Interceptor {
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*/
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private static final Map<String, Map<Configuration, MappedStatement>> MS_CACHE = new ConcurrentHashMap<>();
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/**
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* 打印 MPJ resultMap
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*/
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private static final boolean printResultMap = false;
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@Override
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@SuppressWarnings({"Java8MapApi", "unchecked"})
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public Object intercept(Invocation invocation) throws Throwable {
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@ -137,91 +137,134 @@ public class MPJInterceptor implements Interceptor {
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builder.keyProperty(String.join(StringPool.COMMA, ms.getKeyProperties()));
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}
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List<ResultMap> resultMaps = new ArrayList<>();
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resultMaps.add(buildResultMap(ms, resultType, ew));
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ResultMap resultMap = buildResultMap(ms, resultType, ew);
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resultMaps.add(resultMap);
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printResultMap(resultMap);
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builder.resultMaps(resultMaps);
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return builder.build();
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}
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/**
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* 构建resultMap
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* 构建resultMap TODO 可以用lambda简化代码
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*/
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@SuppressWarnings({"rawtypes", "unchecked", "ConstantConditions"})
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@SuppressWarnings({"rawtypes", "unchecked"})
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private ResultMap buildResultMap(MappedStatement ms, Class<?> resultType, Object obj) {
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TableInfo tableInfo = TableInfoHelper.getTableInfo(resultType);
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if (tableInfo == null || !(obj instanceof MPJLambdaWrapper)) {
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return getDefaultResultMap(tableInfo, ms, resultType);
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}
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MPJLambdaWrapper wrapper = (MPJLambdaWrapper) obj;
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String currentNamespace = ms.getResource().split(StringPool.SPACE)[0];
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String id = currentNamespace + StringPool.DOT + Constants.MYBATIS_PLUS + StringPool.UNDERSCORE + resultType.getSimpleName();
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if (!(obj instanceof MPJLambdaWrapper)) {
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return getDefaultResultMap(tableInfo, ms, resultType, id);
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}
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MPJLambdaWrapper wrapper = (MPJLambdaWrapper) obj;
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Map<String, Field> fieldMap = ReflectionKit.getFieldMap(resultType);
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if (wrapper.isResultMap()) {
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//TODO
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//添加 collection 标签
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return new ResultMap.Builder(ms.getConfiguration(), ms.getId(), resultType, EMPTY_RESULT_MAPPING).build();
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return new ResultMap.Builder(ms.getConfiguration(), id, resultType, EMPTY_RESULT_MAPPING).build();
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} else {
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List<SelectColumn> columnList = wrapper.getSelectColumns();
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List<ResultMapping> resultMappings = new ArrayList<>();
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List<ResultMapping> resultMappings = new ArrayList<>(columnList.size());
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columnList.forEach(i -> {
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//别名优先
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if (StringUtils.isNotBlank(i.getAlias())) {
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resultMappings.add(new ResultMapping.Builder(ms.getConfiguration(), i.getAlias())
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.column(i.getColumnName()).build());
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} else if (i.getTableFieldInfo() != null) {
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//其次field info
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TableFieldInfo info = i.getTableFieldInfo();
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if (StringUtils.isNotBlank(i.getAlias())) {
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//优先别名查询 selectFunc selectAs
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ResultMapping.Builder builder = new ResultMapping.Builder(ms.getConfiguration(), i.getAlias(),
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i.getAlias(), getAliasField(resultType, fieldMap, i.getAlias()));
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if (i.getFuncEnum() == null || StringUtils.isBlank(i.getFuncEnum().getSql())) {
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if (info != null && info.getTypeHandler() != null && info.getTypeHandler() != UnknownTypeHandler.class) {
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Field f = fieldMap.get(i.getAlias());
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if (f.getType() == info.getField().getType()) {
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builder.typeHandler(getTypeHandler(ms, info));
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}
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}
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}
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resultMappings.add(builder.build());
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} else if (info != null) {
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// select selectAll selectAsClass
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if (i.getFuncEnum() == null || StringUtils.isBlank(i.getFuncEnum().getSql())) {
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ResultMapping.Builder builder = new ResultMapping.Builder(ms.getConfiguration(), info.getProperty(),
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info.getColumn(), info.getPropertyType());
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if (info.getTypeHandler() != null && info.getTypeHandler() != UnknownTypeHandler.class) {
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Field f = fieldMap.get(info.getProperty());
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if (f != null && f.getType() == info.getField().getType()) {
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builder.typeHandler(getTypeHandler(ms, info));
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}
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}
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resultMappings.add(builder.build());
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} else {
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resultMappings.add(new ResultMapping.Builder(ms.getConfiguration(), info.getProperty(), info.getColumn(), info.getPropertyType()).build());
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}
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} else {
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// 主键列
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resultMappings.add(new ResultMapping.Builder(ms.getConfiguration(), i.getTagProperty(), i.getColumnName(),
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getAliasField(resultType, fieldMap, i.getTagProperty())).build());
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}
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});
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//移除result中不存在的标签
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resultMappings.removeIf(i -> !fieldMap.containsKey(i.getProperty()));
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return new ResultMap.Builder(ms.getConfiguration(), id, resultType, resultMappings).build();
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}
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}
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/**
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* 获取字段typeHandle
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*/
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private TypeHandler<?> getTypeHandler(MappedStatement ms, TableFieldInfo info) {
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TypeHandlerRegistry registry = ms.getConfiguration().getTypeHandlerRegistry();
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TypeHandler<?> typeHandler = registry.getMappingTypeHandler(info.getTypeHandler());
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if (typeHandler == null) {
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typeHandler = registry.getInstance(info.getPropertyType(), info.getTypeHandler());
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}
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resultMappings.add(new ResultMapping.Builder(ms.getConfiguration(), info.getProperty(),
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info.getColumn(), info.getPropertyType())
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.typeHandler(typeHandler).build());
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} else {
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resultMappings.add(new ResultMapping.Builder(ms.getConfiguration(), info.getProperty(),
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info.getColumn(), info.getPropertyType()).build());
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}
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} else {
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//最后取值
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TableFieldInfo info = tableInfo.getFieldList().stream().filter(t -> t.getColumn().equals(i.getColumnName()))
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.findFirst().orElseGet(null);
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if (info != null && Objects.equals(tableInfo.getKeyColumn(), i.getColumnName())) {
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resultMappings.add(new ResultMapping.Builder(ms.getConfiguration(), tableInfo.getKeyProperty(),
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tableInfo.getKeyColumn(), tableInfo.getKeyType()).build());
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} else if (info != null) {
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resultMappings.add(new ResultMapping.Builder(ms.getConfiguration(), info.getProperty(),
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info.getColumn(), info.getPropertyType()).build());
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} else {
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resultMappings.add(new ResultMapping.Builder(ms.getConfiguration(), i.getColumnName())
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.column(i.getColumnName()).build());
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}
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}
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});
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return new ResultMap.Builder(ms.getConfiguration(), id, resultType, resultMappings).build();
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}
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return typeHandler;
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}
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//TODO 可以加缓存
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private ResultMap getDefaultResultMap(TableInfo tableInfo, MappedStatement ms, Class<?> resultType) {
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/**
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* 获取非lambda的resultMap
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*/
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private ResultMap getDefaultResultMap(TableInfo tableInfo, MappedStatement ms, Class<?> resultType, String id) {
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if (tableInfo != null && tableInfo.isAutoInitResultMap()) {
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//补充不全的属性
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//补充不全的属性 并且是基础数据类型及其包装类
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ResultMap resultMap = ms.getConfiguration().getResultMap(tableInfo.getResultMap());
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List<ResultMapping> resultMappings = resultMap.getResultMappings();
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List<Field> notExistField = ReflectionKit.getFieldList(resultType).stream().filter(i ->
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!i.getAnnotation(TableField.class).exist()).collect(Collectors.toList());
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if (CollectionUtils.isNotEmpty(notExistField)) {
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List<Field> fieldList = ReflectionKit.getFieldList(resultType);
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fieldList.removeIf(i -> resultMappings.stream().anyMatch(r -> i.getName().equals(r.getProperty())));
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if (CollectionUtils.isNotEmpty(fieldList)) {
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//复制已有的resultMapping
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List<ResultMapping> resultMappingList = new ArrayList<>(resultMappings);
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//复制不存在的resultMapping
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for (Field i : notExistField) {
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for (Field i : fieldList) {
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resultMappingList.add(new ResultMapping.Builder(ms.getConfiguration(),
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i.getName(), i.getName(), i.getType()).build());
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}
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return new ResultMap.Builder(ms.getConfiguration(), ms.getId(), resultType, resultMappingList).build();
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return new ResultMap.Builder(ms.getConfiguration(), id, resultType, resultMappingList).build();
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}
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}
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return new ResultMap.Builder(ms.getConfiguration(), ms.getId(), resultType, EMPTY_RESULT_MAPPING).build();
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return new ResultMap.Builder(ms.getConfiguration(), id, resultType, EMPTY_RESULT_MAPPING).build();
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}
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/**
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* 获取result指定名称的字段
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*/
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private Class<?> getAliasField(Class<?> resultType, Map<String, Field> fieldMap, String alias) {
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Field field = fieldMap.get(alias);
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Assert.notNull(field, "Result Class <%s> not find Field <%s>", resultType.getSimpleName(), alias);
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return field.getType();
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}
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/**
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* 打印resultMap
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* 先打开 mybatis plus 日志， 在设置 printResultMap = true 才会打印
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*/
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private void printResultMap(ResultMap resultMap) {
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if (resultMap == null || !printResultMap)
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return;
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logger.debug("===================== MPJ resultMap =========================");
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List<ResultMapping> mappings = resultMap.getResultMappings();
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logger.debug(String.format(" <resultMap id=\"%s\" type=\"%s\">", resultMap.getId(), resultMap.getType().getName()));
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mappings.forEach(i -> logger.debug(String.format(" <result property=\"%s\" column=\"%s\" javaType=\"%s\" typeHandler=\"%s\"/>", i.getProperty(), i.getColumn(), i.getJavaType(), i.getTypeHandler())));
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logger.debug(" </resultMap>");
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logger.debug("===================== end =========================");
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}
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}
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@ -4,8 +4,8 @@ package com.github.yulichang.toolkit;
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import com.baomidou.mybatisplus.core.metadata.TableInfo;
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import com.baomidou.mybatisplus.core.metadata.TableInfoHelper;
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import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
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import com.baomidou.mybatisplus.core.toolkit.support.ColumnCache;
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import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
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import com.github.yulichang.toolkit.support.ColumnCache;
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import com.github.yulichang.toolkit.support.SerializedLambda;
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import org.apache.ibatis.reflection.property.PropertyNamer;
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@ -79,15 +79,6 @@ public final class LambdaUtils {
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return key.toUpperCase(ENGLISH);
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}
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/**
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* 将传入的表信息加入缓存
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*
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* @param tableInfo 表信息
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*/
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@SuppressWarnings("unused")
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public static void installCache(TableInfo tableInfo) {
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COLUMN_CACHE_MAP.put(tableInfo.getEntityType().getName(), createColumnCacheMap(tableInfo));
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}
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/**
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* 缓存实体字段 MAP 信息
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@ -100,13 +91,14 @@ public final class LambdaUtils {
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if (info.havePK()) {
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map = CollectionUtils.newHashMapWithExpectedSize(info.getFieldList().size() + 1);
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map.put(formatKey(info.getKeyProperty()), new ColumnCache(info.getKeyColumn(), info.getKeySqlSelect()));
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map.put(formatKey(info.getKeyProperty()), new ColumnCache(info.getKeyColumn(), info.getKeySqlSelect(),
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null, info.getKeyProperty(), true));
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} else {
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map = CollectionUtils.newHashMapWithExpectedSize(info.getFieldList().size());
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}
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info.getFieldList().forEach(i ->
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map.put(formatKey(i.getProperty()), new ColumnCache(i.getColumn(), i.getSqlSelect()))
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map.put(formatKey(i.getProperty()), new ColumnCache(i.getColumn(), i.getSqlSelect(), i, null, false))
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);
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return map;
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}
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@ -11,7 +11,7 @@ import java.util.Collection;
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* @author yulichang
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* @since 1.2.5
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*/
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public class CacheList<T extends UniqueObject> extends ArrayList<T> implements UniqueObject {
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public class UniqueList<T extends UniqueObject> extends ArrayList<T> implements UniqueObject {
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private String uniqueKey;
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@ -0,0 +1,41 @@
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package com.github.yulichang.toolkit.support;
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import com.baomidou.mybatisplus.core.metadata.TableFieldInfo;
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import lombok.Getter;
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/**
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* 缓存添加tableInfo信息
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*
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* @author yulichang
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* @see com.baomidou.mybatisplus.core.toolkit.support.ColumnCache
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* @since 1.2.5
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*/
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public class ColumnCache extends com.baomidou.mybatisplus.core.toolkit.support.ColumnCache {
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@Getter
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private TableFieldInfo tableFieldInfo;
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@Getter
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private String keyProperty;
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@Getter
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private boolean isPK;
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@Deprecated
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public ColumnCache(String column, String columnSelect) {
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super(column, columnSelect);
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}
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@Deprecated
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public ColumnCache(String column, String columnSelect, String mapping) {
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super(column, columnSelect, mapping);
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}
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public ColumnCache(String column, String columnSelect, TableFieldInfo tableFieldInfo, String keyProperty, boolean isPK) {
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super(column, columnSelect);
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this.tableFieldInfo = tableFieldInfo;
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this.keyProperty = keyProperty;
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this.isPK = isPK;
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}
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}
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@ -1,10 +1,10 @@
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package com.github.yulichang.wrapper;
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import com.baomidou.mybatisplus.core.toolkit.StringPool;
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import com.baomidou.mybatisplus.core.toolkit.support.ColumnCache;
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import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
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import com.github.yulichang.toolkit.Constant;
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import com.github.yulichang.toolkit.LambdaUtils;
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import com.github.yulichang.toolkit.support.ColumnCache;
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import java.util.Arrays;
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import java.util.HashMap;
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@ -11,6 +11,7 @@ import com.baomidou.mybatisplus.core.toolkit.StringPool;
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import com.baomidou.mybatisplus.core.toolkit.StringUtils;
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import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
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import com.github.yulichang.toolkit.*;
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import com.github.yulichang.toolkit.support.ColumnCache;
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import com.github.yulichang.wrapper.enums.BaseFuncEnum;
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import com.github.yulichang.wrapper.interfaces.LambdaJoin;
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import com.github.yulichang.wrapper.interfaces.Query;
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@ -50,7 +51,7 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
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* 查询的字段
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*/
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@Getter
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private final List<SelectColumn> selectColumns = new CacheList<>();
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private final List<SelectColumn> selectColumns = new UniqueList<>();
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/**
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* ON sql wrapper集合
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*/
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@ -67,7 +68,7 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
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* 是否构建resultMap
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*/
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@Getter
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private boolean resultMap = false;
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private final boolean resultMap = false;
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/**
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* 表序号
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*/
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@ -128,7 +129,9 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
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public final <S> MPJLambdaWrapper<T> select(SFunction<S, ?>... columns) {
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if (ArrayUtils.isNotEmpty(columns)) {
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for (SFunction<S, ?> s : columns) {
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selectColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(s), getCache(s).getColumn(), null));
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ColumnCache cache = getCache(s);
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selectColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(s), cache.getColumn(), cache.getTableFieldInfo(),
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null, cache.getTableFieldInfo() == null ? cache.getKeyProperty() : cache.getTableFieldInfo().getProperty(), null));
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}
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}
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return typedThis;
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@ -139,7 +142,7 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
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TableInfo info = TableInfoHelper.getTableInfo(entityClass);
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Assert.notNull(info, "table can not be find");
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info.getFieldList().stream().filter(predicate).collect(Collectors.toList()).forEach(
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i -> selectColumns.add(SelectColumn.of(entityClass, i.getColumn(), i)));
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i -> selectColumns.add(SelectColumn.of(entityClass, i.getColumn(), i, null, i.getProperty(), null)));
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return typedThis;
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}
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@ -150,24 +153,26 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
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List<Field> tagFields = ReflectionKit.getFieldList(tag);
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tableInfo.getFieldList().forEach(i -> {
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if (tagFields.stream().anyMatch(f -> f.getName().equals(i.getProperty()))) {
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selectColumns.add(SelectColumn.of(source, i.getColumn(), i));
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selectColumns.add(SelectColumn.of(source, i.getColumn(), i, null, i.getProperty(), null));
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}
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});
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if (tableInfo.havePK() && tagFields.stream().anyMatch(i -> i.getName().equals(tableInfo.getKeyProperty()))) {
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selectColumns.add(SelectColumn.of(source, tableInfo.getKeyColumn(), null));
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selectColumns.add(SelectColumn.of(source, tableInfo.getKeyColumn(), null, null, tableInfo.getKeyProperty(), null));
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}
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return typedThis;
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}
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@Override
|
||||
public <S> MPJLambdaWrapper<T> selectAs(SFunction<S, ?> column, String alias) {
|
||||
selectColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(column), getCache(column).getColumn(), null, alias));
|
||||
ColumnCache cache = getCache(column);
|
||||
selectColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(column), cache.getColumn(), cache.getTableFieldInfo(), alias, null, null));
|
||||
return typedThis;
|
||||
}
|
||||
|
||||
public <S> MPJLambdaWrapper<T> selectFunc(boolean condition, BaseFuncEnum funcEnum, SFunction<S, ?> column, String alias) {
|
||||
if (condition) {
|
||||
selectColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(column), getCache(column).getColumn(), null, alias, funcEnum));
|
||||
ColumnCache cache = getCache(column);
|
||||
selectColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(column), cache.getColumn(), cache.getTableFieldInfo(), alias, alias, funcEnum));
|
||||
}
|
||||
return typedThis;
|
||||
}
|
||||
@ -175,7 +180,7 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
|
||||
@Override
|
||||
public MPJLambdaWrapper<T> selectFunc(boolean condition, BaseFuncEnum funcEnum, Object column, String alias) {
|
||||
if (condition) {
|
||||
selectColumns.add(SelectColumn.of(null, column.toString(), null, alias, funcEnum));
|
||||
selectColumns.add(SelectColumn.of(null, column.toString(), null, alias, alias, funcEnum));
|
||||
}
|
||||
return typedThis;
|
||||
}
|
||||
@ -184,10 +189,10 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
|
||||
TableInfo info = TableInfoHelper.getTableInfo(clazz);
|
||||
Assert.notNull(info, "table can not be find -> %s", clazz);
|
||||
if (info.havePK()) {
|
||||
selectColumns.add(SelectColumn.of(clazz, info.getKeyColumn(), null));
|
||||
selectColumns.add(SelectColumn.of(clazz, info.getKeyColumn(), null, null, info.getKeyProperty(), null));
|
||||
}
|
||||
info.getFieldList().forEach(c ->
|
||||
selectColumns.add(SelectColumn.of(clazz, c.getColumn(), c)));
|
||||
selectColumns.add(SelectColumn.of(clazz, c.getColumn(), c, null, c.getProperty(), null)));
|
||||
return typedThis;
|
||||
}
|
||||
|
||||
|
||||
@ -2,6 +2,7 @@ package com.github.yulichang.wrapper;
|
||||
|
||||
import com.baomidou.mybatisplus.core.metadata.TableFieldInfo;
|
||||
import com.baomidou.mybatisplus.core.toolkit.StringPool;
|
||||
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
|
||||
import com.github.yulichang.toolkit.UniqueObject;
|
||||
import com.github.yulichang.wrapper.enums.BaseFuncEnum;
|
||||
import lombok.Data;
|
||||
@ -37,30 +38,30 @@ public class SelectColumn implements UniqueObject {
|
||||
*/
|
||||
private String alias;
|
||||
|
||||
/**
|
||||
* 目标属性
|
||||
*/
|
||||
private String tagProperty;
|
||||
|
||||
/**
|
||||
* 字段函数
|
||||
*/
|
||||
private BaseFuncEnum funcEnum;
|
||||
|
||||
|
||||
private SelectColumn(Class<?> clazz, String columnName, TableFieldInfo tableFieldInfo, String alias, BaseFuncEnum funcEnum) {
|
||||
private SelectColumn(Class<?> clazz, String columnName, TableFieldInfo tableFieldInfo, String alias, String tagProperty, BaseFuncEnum funcEnum) {
|
||||
this.clazz = clazz;
|
||||
this.columnName = columnName;
|
||||
this.tableFieldInfo = tableFieldInfo;
|
||||
this.alias = alias;
|
||||
this.tagProperty = tagProperty;
|
||||
this.funcEnum = funcEnum;
|
||||
}
|
||||
|
||||
public static SelectColumn of(Class<?> clazz, String columnName, TableFieldInfo tableFieldInfo) {
|
||||
return new SelectColumn(clazz, columnName, tableFieldInfo, null, null);
|
||||
}
|
||||
|
||||
public static SelectColumn of(Class<?> clazz, String columnName, TableFieldInfo tableFieldInfo, String alias) {
|
||||
return new SelectColumn(clazz, columnName, tableFieldInfo, alias, null);
|
||||
}
|
||||
|
||||
public static SelectColumn of(Class<?> clazz, String columnName, TableFieldInfo tableFieldInfo, String alias, BaseFuncEnum funcEnum) {
|
||||
return new SelectColumn(clazz, columnName, tableFieldInfo, alias, funcEnum);
|
||||
public static SelectColumn of(Class<?> clazz, String columnName, TableFieldInfo tableFieldInfo, String alias, String tagProperty, BaseFuncEnum funcEnum) {
|
||||
if (tagProperty != null)
|
||||
tagProperty = StringUtils.getTargetColumn(tagProperty);
|
||||
return new SelectColumn(clazz, columnName, tableFieldInfo, alias, tagProperty, funcEnum);
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user