移除自定义别名

This commit is contained in:
yulichang 2021-11-17 16:37:56 +08:00
parent 3910a2de79
commit b55cb534c6
21 changed files with 307 additions and 259 deletions

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@ -1,66 +0,0 @@
package com.baomidou.mybatisplus.core.metadata;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.github.yulichang.annotation.MPJTableAlias;
import com.github.yulichang.toolkit.Constant;
import lombok.Data;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
/**
* 全局表别名控制,默认表别名为 t t1 t2 ... <br>
* 可以通过@MPJTableAlias注解指定表别名<br/>
* 仅对MPJLambdaWrapper有效
*
* @author yulichang
* @see com.github.yulichang.wrapper.MPJLambdaWrapper
* @see MPJTableAlias
* @since 1.2.0
*/
public class MPJTableAliasHelper {
private static final Map<Class<?>, TableAlias> CACHE = new ConcurrentHashMap<>();
/**
* 用于生成别名的序号
*/
private static final AtomicInteger index = new AtomicInteger(1);
public static void init(Class<?> clazz) {
TableAlias as = CACHE.get(clazz);
if (Objects.nonNull(as)) {
return;
}
TableAlias alias = new TableAlias();
MPJTableAlias tableAlias = clazz.getAnnotation(MPJTableAlias.class);
if (tableAlias != null && StringUtils.isNotBlank(tableAlias.value())) {
alias.setAlias(tableAlias.value());
} else {
alias.setAlias(Constant.TABLE_ALIAS + index.getAndIncrement());
}
alias.setAliasDOT(alias.getAlias() + StringPool.DOT);
CACHE.put(clazz, alias);
}
public static TableAlias get(Class<?> clazz) {
return CACHE.get(clazz);
}
@Data
public static class TableAlias {
/**
* 表别名
*/
private String alias;
/**
* 前缀
*/
private String aliasDOT;
}
}

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@ -2,7 +2,6 @@ package com.baomidou.mybatisplus.core.metadata;
import java.util.Map; import java.util.Map;
import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
/** /**
* 实体类对应的mapper管理 * 实体类对应的mapper管理

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@ -1,25 +0,0 @@
package com.github.yulichang.annotation;
import java.lang.annotation.*;
/**
* 关联查询时的表别名<br/>
* 框架默认会随机生成 一般是 t1 t2 t3 ...<br/>
* 不要在程序中使用随机别名运行期间是不变的但是重启就不一定了<br/>
* 如需使用请配合此注解一起使用<br/>
* <p>
* 这个注解定义的表别名或者随机生成的别名只对MPJLambdaWrapper生效<br/>
* 对MPJQueryWrapper不生效,
*
* @author yulichang
* @see com.github.yulichang.wrapper.MPJLambdaWrapper
* @see com.github.yulichang.query.MPJQueryWrapper
* @since 1.2.0
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE, ElementType.ANNOTATION_TYPE})
public @interface MPJTableAlias {
String value();
}

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@ -1,7 +1,9 @@
package com.github.yulichang.config; package com.github.yulichang.config;
import com.baomidou.mybatisplus.core.injector.ISqlInjector;
import com.baomidou.mybatisplus.core.toolkit.CollectionUtils; import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
import com.github.yulichang.exception.MPJException; import com.github.yulichang.exception.MPJException;
import com.github.yulichang.injector.MPJSqlInjector;
import com.github.yulichang.interceptor.MPJInterceptor; import com.github.yulichang.interceptor.MPJInterceptor;
import org.apache.ibatis.logging.Log; import org.apache.ibatis.logging.Log;
import org.apache.ibatis.logging.LogFactory; import org.apache.ibatis.logging.LogFactory;
@ -31,6 +33,8 @@ public class InterceptorConfig implements ApplicationListener<ApplicationReadyEv
private List<SqlSessionFactory> sqlSessionFactoryList; private List<SqlSessionFactory> sqlSessionFactoryList;
@Autowired @Autowired
private MPJInterceptor mpjInterceptor; private MPJInterceptor mpjInterceptor;
@Autowired(required = false)
private ISqlInjector iSqlInjector;
@Override @Override
@SuppressWarnings("unchecked") @SuppressWarnings("unchecked")
@ -44,16 +48,21 @@ public class InterceptorConfig implements ApplicationListener<ApplicationReadyEv
Field interceptors = InterceptorChain.class.getDeclaredField("interceptors"); Field interceptors = InterceptorChain.class.getDeclaredField("interceptors");
interceptors.setAccessible(true); interceptors.setAccessible(true);
List<Interceptor> list = (List<Interceptor>) interceptors.get(chain); List<Interceptor> list = (List<Interceptor>) interceptors.get(chain);
if (CollectionUtils.isNotEmpty(list) && list.get(list.size() - 1) != mpjInterceptor) { if (CollectionUtils.isNotEmpty(list)) {
list.removeIf(i -> i == mpjInterceptor); if (list.get(list.size() - 1) != mpjInterceptor) {
list.removeIf(i -> i == mpjInterceptor);
list.add(mpjInterceptor);
}
} else {
list.add(mpjInterceptor); list.add(mpjInterceptor);
} }
} }
} catch (Exception ignored) { } catch (Exception ignored) {
throw new MPJException("mpjInterceptor exception"); throw new MPJException("mpjInterceptor exception");
} }
} else { }
logger.warn("MPJ not define SqlSessionFactory"); if (iSqlInjector != null && !(iSqlInjector instanceof MPJSqlInjector)) {
logger.error("sql注入器未继承 MPJSqlInjector -> " + iSqlInjector.getClass());
} }
} }
} }

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@ -1,7 +1,11 @@
package com.github.yulichang.injector; package com.github.yulichang.injector;
import com.baomidou.mybatisplus.core.MybatisConfiguration;
import com.baomidou.mybatisplus.core.config.GlobalConfig;
import com.baomidou.mybatisplus.core.injector.AbstractMethod; import com.baomidou.mybatisplus.core.injector.AbstractMethod;
import com.baomidou.mybatisplus.core.injector.AbstractSqlInjector;
import com.baomidou.mybatisplus.core.injector.DefaultSqlInjector; import com.baomidou.mybatisplus.core.injector.DefaultSqlInjector;
import com.baomidou.mybatisplus.core.injector.ISqlInjector;
import com.baomidou.mybatisplus.core.injector.methods.*; import com.baomidou.mybatisplus.core.injector.methods.*;
import com.baomidou.mybatisplus.core.mapper.Mapper; import com.baomidou.mybatisplus.core.mapper.Mapper;
import com.baomidou.mybatisplus.core.metadata.MPJTableMapperHelper; import com.baomidou.mybatisplus.core.metadata.MPJTableMapperHelper;
@ -24,9 +28,10 @@ import static java.util.stream.Collectors.toList;
* @author yulichang * @author yulichang
* @see DefaultSqlInjector * @see DefaultSqlInjector
*/ */
@ConditionalOnMissingBean(DefaultSqlInjector.class) @ConditionalOnMissingBean({DefaultSqlInjector.class, AbstractSqlInjector.class, ISqlInjector.class})
public class MPJSqlInjector extends DefaultSqlInjector { public class MPJSqlInjector extends DefaultSqlInjector {
/** /**
* 升级到 mybatis plus 3.4.3.2 后对之前的版本兼容 * 升级到 mybatis plus 3.4.3.2 后对之前的版本兼容
*/ */

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@ -1,10 +1,10 @@
package com.github.yulichang.method; package com.github.yulichang.method;
import com.baomidou.mybatisplus.core.injector.AbstractMethod; import com.baomidou.mybatisplus.core.injector.AbstractMethod;
import com.baomidou.mybatisplus.core.metadata.MPJTableAliasHelper;
import com.baomidou.mybatisplus.core.metadata.TableInfo; import com.baomidou.mybatisplus.core.metadata.TableInfo;
import com.baomidou.mybatisplus.core.toolkit.StringPool; import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.core.toolkit.sql.SqlScriptUtils; import com.baomidou.mybatisplus.core.toolkit.sql.SqlScriptUtils;
import com.github.yulichang.toolkit.Constant;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.List; import java.util.List;
@ -40,7 +40,7 @@ public abstract class MPJAbstractMethod extends AbstractMethod {
String[] columns = selectColumns.split(StringPool.COMMA); String[] columns = selectColumns.split(StringPool.COMMA);
List<String> selectColumnList = new ArrayList<>(); List<String> selectColumnList = new ArrayList<>();
for (String c : columns) { for (String c : columns) {
selectColumnList.add(MPJTableAliasHelper.get(table.getEntityType()).getAlias() + StringPool.DOT + c); selectColumnList.add(Constant.TABLE_ALIAS + StringPool.DOT + c);
} }
selectColumns = String.join(StringPool.COMMA, selectColumnList); selectColumns = String.join(StringPool.COMMA, selectColumnList);
} }
@ -54,18 +54,16 @@ public abstract class MPJAbstractMethod extends AbstractMethod {
@Override @Override
protected String sqlCount() { protected String sqlCount() {
return SqlScriptUtils.convertChoose(String.format("%s != null and %s != null and %s != ''", WRAPPER, return SqlScriptUtils.convertChoose(String.format("%s != null and %s != null and %s != ''", WRAPPER,
Q_WRAPPER_SQL_SELECT, Q_WRAPPER_SQL_SELECT), Q_WRAPPER_SQL_SELECT, Q_WRAPPER_SQL_SELECT),
SqlScriptUtils.unSafeParam(Q_WRAPPER_SQL_SELECT), ASTERISK); SqlScriptUtils.unSafeParam(Q_WRAPPER_SQL_SELECT), ASTERISK);
} }
protected String sqlAlias(Class<?> modelClass) { protected String sqlAlias() {
return SqlScriptUtils.convertChoose(String.format("%s != null and %s != ''", "ew.autoAlias", "ew.autoAlias"), return SqlScriptUtils.convertIf("${ew.alias}", String.format("%s != null and %s != ''", "ew.alias", "ew.alias"), false);
MPJTableAliasHelper.get(modelClass).getAlias(), "${ew.alias}");
} }
protected String sqlFrom() { protected String sqlFrom() {
return SqlScriptUtils.convertIf("${ew.from}", String.format("%s != null and %s != ''", "ew.from", "ew.from"), false); return SqlScriptUtils.convertIf("${ew.from}", String.format("%s != null and %s != ''", "ew.from", "ew.from"), false);
} }
} }

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@ -17,7 +17,7 @@ public class SelectJoinCount extends MPJAbstractMethod {
public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) { public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_COUNT; SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_COUNT;
String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlCount(), String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlCount(),
tableInfo.getTableName(), sqlAlias(modelClass), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment()); tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass); SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Integer.class); return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Integer.class);
} }

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@ -15,7 +15,7 @@ public class SelectJoinList extends MPJAbstractMethod {
public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) { public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_LIST; SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_LIST;
String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true), String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
tableInfo.getTableName(), sqlAlias(modelClass), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment()); tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass); SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, MPJResultType.class); return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, MPJResultType.class);
} }

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@ -17,7 +17,7 @@ public class SelectJoinMap extends MPJAbstractMethod {
public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) { public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_MAP; SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_MAP;
String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true), String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
tableInfo.getTableName(), sqlAlias(modelClass), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment()); tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass); SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Map.class); return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Map.class);
} }

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@ -17,7 +17,7 @@ public class SelectJoinMaps extends MPJAbstractMethod {
public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) { public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_MAPS; SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_MAPS;
String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true), String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
tableInfo.getTableName(), sqlAlias(modelClass), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment()); tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass); SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Map.class); return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Map.class);
} }

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@ -17,7 +17,7 @@ public class SelectJoinMapsPage extends MPJAbstractMethod {
public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) { public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_MAPS_PAGE; SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_MAPS_PAGE;
String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true), String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
tableInfo.getTableName(), sqlAlias(modelClass), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment()); tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass); SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Map.class); return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Map.class);
} }

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@ -15,7 +15,7 @@ public class SelectJoinOne extends MPJAbstractMethod {
public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) { public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_ONE; SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_ONE;
String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true), String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
tableInfo.getTableName(), sqlAlias(modelClass), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment()); tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass); SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, MPJResultType.class); return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, MPJResultType.class);
} }

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@ -15,7 +15,7 @@ public class SelectJoinPage extends MPJAbstractMethod {
public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) { public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_PAGE; SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_PAGE;
String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true), String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
tableInfo.getTableName(), sqlAlias(modelClass), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment()); tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass); SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, MPJResultType.class); return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, MPJResultType.class);
} }

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@ -50,7 +50,7 @@ public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambda
/** /**
* 主表别名 * 主表别名
*/ */
private String alias = Constant.TABLE_ALIAS; private final SharedString alias = new SharedString(Constant.TABLE_ALIAS);
/** /**
* 查询的列 * 查询的列
@ -90,14 +90,6 @@ public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambda
this.ignoreColumns = ignoreColumns; this.ignoreColumns = ignoreColumns;
} }
/**
* 设置表别名(默认为 t 可以调用此方法修改,调用后才生效所以最好第一个调用)
*/
public final MPJLambdaQueryWrapper<T> alias(String tableAlias) {
this.alias = tableAlias;
return typedThis;
}
/** /**
* SELECT 部分 SQL 设置 * SELECT 部分 SQL 设置
* *
@ -138,7 +130,7 @@ public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambda
public final MPJLambdaQueryWrapper<T> selectIgnore(SFunction<T, ?>... columns) { public final MPJLambdaQueryWrapper<T> selectIgnore(SFunction<T, ?>... columns) {
if (ArrayUtils.isNotEmpty(columns)) { if (ArrayUtils.isNotEmpty(columns)) {
for (SFunction<T, ?> s : columns) { for (SFunction<T, ?> s : columns) {
ignoreColumns.add(this.alias + StringPool.DOT + super.columnToString(s, false)); ignoreColumns.add(Constant.TABLE_ALIAS + StringPool.DOT + getColumnCache(s).getColumn());
} }
} }
return typedThis; return typedThis;
@ -146,7 +138,7 @@ public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambda
@Override @Override
protected String columnToString(SFunction<T, ?> column, boolean onlyColumn) { protected String columnToString(SFunction<T, ?> column, boolean onlyColumn) {
return this.alias + StringPool.DOT + super.columnToString(column, onlyColumn); return Constant.TABLE_ALIAS + StringPool.DOT + super.columnToString(column, onlyColumn);
} }
public MPJLambdaQueryWrapper<T> select(String... columns) { public MPJLambdaQueryWrapper<T> select(String... columns) {
@ -174,7 +166,7 @@ public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambda
TableInfo info = TableInfoHelper.getTableInfo(entityClass); TableInfo info = TableInfoHelper.getTableInfo(entityClass);
Assert.notNull(info, "can not find table info"); Assert.notNull(info, "can not find table info");
selectColumns.addAll(info.getFieldList().stream().filter(predicate).map(c -> selectColumns.addAll(info.getFieldList().stream().filter(predicate).map(c ->
this.alias + StringPool.DOT + c.getColumn()).collect(Collectors.toList())); Constant.TABLE_ALIAS + StringPool.DOT + c.getColumn()).collect(Collectors.toList()));
return typedThis; return typedThis;
} }
@ -185,7 +177,7 @@ public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambda
* @param clazz 主表class * @param clazz 主表class
*/ */
public final MPJLambdaQueryWrapper<T> selectAll(Class<T> clazz) { public final MPJLambdaQueryWrapper<T> selectAll(Class<T> clazz) {
return selectAll(clazz, this.alias); return selectAll(clazz, Constant.TABLE_ALIAS);
} }
/** /**
@ -194,14 +186,13 @@ public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambda
* @param clazz 表实体 * @param clazz 表实体
* @param as 表别名 * @param as 表别名
*/ */
@SuppressWarnings("DuplicatedCode")
public final MPJLambdaQueryWrapper<T> selectAll(Class<?> clazz, String as) { public final MPJLambdaQueryWrapper<T> selectAll(Class<?> clazz, String as) {
TableInfo info = TableInfoHelper.getTableInfo(clazz); TableInfo info = TableInfoHelper.getTableInfo(clazz);
Assert.notNull(info, "can not find table info"); Assert.notNull(info, "can not find table info");
if (info.havePK()) { if (info.havePK()) {
selectColumns.add(as + StringPool.DOT + info.getKeyColumn()); selectColumns.add(as + StringPool.DOT + info.getKeyColumn());
} }
selectColumns.addAll(info.getFieldList().stream().filter(TableFieldInfo::isSelect).map(i -> selectColumns.addAll(info.getFieldList().stream().map(i ->
as + StringPool.DOT + i.getColumn()).collect(Collectors.toList())); as + StringPool.DOT + i.getColumn()).collect(Collectors.toList()));
return typedThis; return typedThis;
} }
@ -229,12 +220,9 @@ public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambda
return from.getStringValue(); return from.getStringValue();
} }
public boolean getAutoAlias() {
return false;
}
public String getAlias() { public String getAlias() {
return alias; return alias.getStringValue();
} }
/** /**

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@ -47,7 +47,7 @@ public class MPJQueryWrapper<T> extends AbstractWrapper<T, String, MPJQueryWrapp
/** /**
* 主表别名 * 主表别名
*/ */
private String alias = Constant.TABLE_ALIAS; private final SharedString alias = new SharedString(Constant.TABLE_ALIAS);
/** /**
* 查询的列 * 查询的列
@ -88,14 +88,6 @@ public class MPJQueryWrapper<T> extends AbstractWrapper<T, String, MPJQueryWrapp
this.ignoreColumns = ignoreColumns; this.ignoreColumns = ignoreColumns;
} }
/**
* 设置表别名(默认为 t 可以调用此方法修改,调用后才生效所以最好第一个调用)
*/
public final MPJQueryWrapper<T> alias(String tableAlias) {
this.alias = tableAlias;
return typedThis;
}
@Override @Override
public MPJQueryWrapper<T> select(String... columns) { public MPJQueryWrapper<T> select(String... columns) {
if (ArrayUtils.isNotEmpty(columns)) { if (ArrayUtils.isNotEmpty(columns)) {
@ -130,7 +122,7 @@ public class MPJQueryWrapper<T> extends AbstractWrapper<T, String, MPJQueryWrapp
TableInfo info = TableInfoHelper.getTableInfo(entityClass); TableInfo info = TableInfoHelper.getTableInfo(entityClass);
Assert.notNull(info, "can not find table info"); Assert.notNull(info, "can not find table info");
selectColumns.addAll(info.getFieldList().stream().filter(predicate).map(c -> selectColumns.addAll(info.getFieldList().stream().filter(predicate).map(c ->
this.alias + StringPool.DOT + c.getColumn()).collect(Collectors.toList())); Constant.TABLE_ALIAS + StringPool.DOT + c.getColumn()).collect(Collectors.toList()));
return typedThis; return typedThis;
} }
@ -141,7 +133,7 @@ public class MPJQueryWrapper<T> extends AbstractWrapper<T, String, MPJQueryWrapp
* @param clazz 主表class * @param clazz 主表class
*/ */
public final MPJQueryWrapper<T> selectAll(Class<T> clazz) { public final MPJQueryWrapper<T> selectAll(Class<T> clazz) {
selectAll(clazz, this.alias); selectAll(clazz, Constant.TABLE_ALIAS);
return typedThis; return typedThis;
} }
@ -157,7 +149,7 @@ public class MPJQueryWrapper<T> extends AbstractWrapper<T, String, MPJQueryWrapp
if (info.havePK()) { if (info.havePK()) {
selectColumns.add(as + StringPool.DOT + info.getKeyColumn()); selectColumns.add(as + StringPool.DOT + info.getKeyColumn());
} }
selectColumns.addAll(info.getFieldList().stream().filter(TableFieldInfo::isSelect).map(i -> selectColumns.addAll(info.getFieldList().stream().map(i ->
as + StringPool.DOT + i.getColumn()).collect(Collectors.toList())); as + StringPool.DOT + i.getColumn()).collect(Collectors.toList()));
return typedThis; return typedThis;
} }
@ -178,18 +170,13 @@ public class MPJQueryWrapper<T> extends AbstractWrapper<T, String, MPJQueryWrapp
return from.getStringValue(); return from.getStringValue();
} }
public boolean getAutoAlias() {
return false;
}
public String getAlias() { public String getAlias() {
return alias; return alias.getStringValue();
} }
/** /**
* 返回一个支持 lambda 函数写法的 wrapper * 返回一个支持 lambda 函数写法的 wrapper
*/ */
@SuppressWarnings("deprecation")
public MPJLambdaQueryWrapper<T> lambda() { public MPJLambdaQueryWrapper<T> lambda() {
return new MPJLambdaQueryWrapper<>(getEntity(), getEntityClass(), from, sqlSelect, paramNameSeq, paramNameValuePairs, return new MPJLambdaQueryWrapper<>(getEntity(), getEntityClass(), from, sqlSelect, paramNameSeq, paramNameValuePairs,
expression, lastSql, sqlComment, sqlFirst, selectColumns, ignoreColumns); expression, lastSql, sqlComment, sqlFirst, selectColumns, ignoreColumns);

View File

@ -11,6 +11,8 @@ public interface Constant {
*/ */
String TABLE_ALIAS = "t"; String TABLE_ALIAS = "t";
String AS = " AS ";
String ON = " ON "; String ON = " ON ";
String JOIN = "JOIN"; String JOIN = "JOIN";
@ -37,4 +39,9 @@ public interface Constant {
* " INNER JOIN " * " INNER JOIN "
*/ */
String INNER_JOIN = StringPool.SPACE + INNER + StringPool.SPACE + JOIN + StringPool.SPACE; String INNER_JOIN = StringPool.SPACE + INNER + StringPool.SPACE + JOIN + StringPool.SPACE;
/**
* " t"
*/
String SPACE_TABLE_ALIAS = StringPool.SPACE + Constant.TABLE_ALIAS;
} }

View File

@ -1,14 +1,15 @@
package com.github.yulichang.wrapper; package com.github.yulichang.wrapper;
import com.baomidou.mybatisplus.core.metadata.MPJTableAliasHelper;
import com.baomidou.mybatisplus.core.toolkit.StringPool; import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.core.toolkit.support.ColumnCache; import com.baomidou.mybatisplus.core.toolkit.support.ColumnCache;
import com.baomidou.mybatisplus.core.toolkit.support.SFunction; import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
import com.github.yulichang.toolkit.Constant;
import com.github.yulichang.toolkit.LambdaUtils; import com.github.yulichang.toolkit.LambdaUtils;
import java.util.Arrays; import java.util.Arrays;
import java.util.HashMap; import java.util.HashMap;
import java.util.Map; import java.util.Map;
import java.util.Objects;
import static java.util.stream.Collectors.joining; import static java.util.stream.Collectors.joining;
@ -19,6 +20,12 @@ import static java.util.stream.Collectors.joining;
*/ */
public abstract class MPJAbstractLambdaWrapper<T, Children extends MPJAbstractLambdaWrapper<T, Children>> public abstract class MPJAbstractLambdaWrapper<T, Children extends MPJAbstractLambdaWrapper<T, Children>>
extends MPJAbstractWrapper<T, Children> { extends MPJAbstractWrapper<T, Children> {
/**
* 关联的表
*/
protected Map<Class<?>, Integer> subTable = new HashMap<>();
/** /**
* 缓存字段 * 缓存字段
*/ */
@ -26,13 +33,7 @@ public abstract class MPJAbstractLambdaWrapper<T, Children extends MPJAbstractLa
@Override @Override
protected <X> String columnToString(X column) { protected <X> String columnToString(X column) {
return columnToString((SFunction<?, ?>) column, hasAlias || entityClass != return columnToString((SFunction<?, ?>) column);
LambdaUtils.getEntityClass((SFunction<?, ?>) column));
}
@Override
protected <X> String columnToString(X column, boolean hasAlias) {
return columnToString((SFunction<?, ?>) column, hasAlias);
} }
@Override @Override
@ -41,9 +42,9 @@ public abstract class MPJAbstractLambdaWrapper<T, Children extends MPJAbstractLa
return Arrays.stream(columns).map(i -> columnToString((SFunction<?, ?>) i)).collect(joining(StringPool.COMMA)); return Arrays.stream(columns).map(i -> columnToString((SFunction<?, ?>) i)).collect(joining(StringPool.COMMA));
} }
protected String columnToString(SFunction<?, ?> column, boolean hasAlias) { protected String columnToString(SFunction<?, ?> column) {
return (hasAlias ? MPJTableAliasHelper.get(LambdaUtils.getEntityClass(column)).getAliasDOT() : return Constant.TABLE_ALIAS + getDefault(subTable.get(LambdaUtils.getEntityClass(column))) + StringPool.DOT +
StringPool.EMPTY) + getCache(column).getColumn(); getCache(column).getColumn();
} }
protected ColumnCache getCache(SFunction<?, ?> fn) { protected ColumnCache getCache(SFunction<?, ?> fn) {
@ -55,4 +56,12 @@ public abstract class MPJAbstractLambdaWrapper<T, Children extends MPJAbstractLa
} }
return cacheMap.get(LambdaUtils.formatKey(LambdaUtils.getName(fn))); return cacheMap.get(LambdaUtils.formatKey(LambdaUtils.getName(fn)));
} }
protected String getDefault(Integer i) {
if (Objects.nonNull(i)) {
return i.toString();
}
return StringPool.EMPTY;
}
} }

View File

@ -11,7 +11,6 @@ import com.baomidou.mybatisplus.core.toolkit.*;
import com.baomidou.mybatisplus.core.toolkit.sql.SqlUtils; import com.baomidou.mybatisplus.core.toolkit.sql.SqlUtils;
import com.baomidou.mybatisplus.core.toolkit.sql.StringEscape; import com.baomidou.mybatisplus.core.toolkit.sql.StringEscape;
import com.baomidou.mybatisplus.core.toolkit.support.SFunction; import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
import com.github.yulichang.toolkit.LambdaUtils;
import com.github.yulichang.toolkit.sql.SqlScriptUtils; import com.github.yulichang.toolkit.sql.SqlScriptUtils;
import com.github.yulichang.wrapper.interfaces.Compare; import com.github.yulichang.wrapper.interfaces.Compare;
import com.github.yulichang.wrapper.interfaces.Func; import com.github.yulichang.wrapper.interfaces.Func;
@ -36,17 +35,10 @@ import static java.util.stream.Collectors.joining;
* *
* @author yulichang * @author yulichang
*/ */
//@SuppressWarnings("ALL") @SuppressWarnings("ALL")
@SuppressWarnings({"unchecked", "unused"})
public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<T, Children>> extends Wrapper<T> public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<T, Children>> extends Wrapper<T>
implements Compare<Children>, Nested<Children, Children>, Join<Children>, Func<Children>, OnCompare<Children> { implements Compare<Children>, Nested<Children, Children>, Join<Children>, Func<Children>, OnCompare<Children> {
/**
* 是否使用别名
*/
protected boolean hasAlias;
/** /**
* 占位符 * 占位符
*/ */
@ -59,7 +51,7 @@ public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<
/** /**
* 其他 * 其他
*/ */
/* mybatis plus 3.4.3新增 这个wrapper的别名 不是MPJ的别名 */ /* mybatis plus 3.4.3新增 这个wrapper的别名 不是MPJ的别名 */
protected SharedString paramAlias; protected SharedString paramAlias;
protected SharedString lastSql; protected SharedString lastSql;
/** /**
@ -79,13 +71,32 @@ public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<
/** /**
* 实体类型(主要用于确定泛型以及取TableInfo缓存) * 实体类型(主要用于确定泛型以及取TableInfo缓存)
*/ */
protected Class<?> entityClass; private Class<T> entityClass;
@Override @Override
public T getEntity() { public T getEntity() {
return entity; return entity;
} }
public Children setEntity(T entity) {
this.entity = entity;
return typedThis;
}
public Class<T> getEntityClass() {
if (entityClass == null && entity != null) {
entityClass = (Class<T>) entity.getClass();
}
return entityClass;
}
public Children setEntityClass(Class<T> entityClass) {
if (entityClass != null) {
this.entityClass = entityClass;
}
return typedThis;
}
@Override @Override
public <X, V> Children allEq(boolean condition, Map<SFunction<X, ?>, V> params, boolean null2IsNull) { public <X, V> Children allEq(boolean condition, Map<SFunction<X, ?>, V> params, boolean null2IsNull) {
if (condition && CollectionUtils.isNotEmpty(params)) { if (condition && CollectionUtils.isNotEmpty(params)) {
@ -318,6 +329,7 @@ public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<
* 字段 SQL 注入过滤处理子类重写实现过滤逻辑 * 字段 SQL 注入过滤处理子类重写实现过滤逻辑
* *
* @param column 字段内容 * @param column 字段内容
* @return
*/ */
protected <X> SFunction<X, ?> columnSqlInjectFilter(SFunction<X, ?> column) { protected <X> SFunction<X, ?> columnSqlInjectFilter(SFunction<X, ?> column) {
return column; return column;
@ -372,11 +384,9 @@ public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<
() -> formatParam(null, val))); () -> formatParam(null, val)));
} }
protected <X, S> Children addCondition(boolean condition, SFunction<X, ?> column, SqlKeyword sqlKeyword, protected <X, S> Children addCondition(boolean condition, SFunction<X, ?> column, SqlKeyword sqlKeyword, SFunction<S, ?> val) {
SFunction<S, ?> val) { return maybeDo(condition, () -> appendSqlSegments(columnToSqlSegment(column), sqlKeyword,
return maybeDo(condition, () -> appendSqlSegments(columnToSqlSegment(column, hasAlias || entityClass != columnToSqlSegment(val)));
LambdaUtils.getEntityClass(column)), sqlKeyword, columnToSqlSegment(val, hasAlias ||
entityClass != LambdaUtils.getEntityClass(val))));
} }
/** /**
@ -407,7 +417,6 @@ public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<
* @param params 参数 * @param params 参数
* @return sql片段 * @return sql片段
*/ */
@SuppressWarnings("SameParameterValue")
protected final String formatSqlMaybeWithParam(String sqlStr, String mapping, Object... params) { protected final String formatSqlMaybeWithParam(String sqlStr, String mapping, Object... params) {
if (StringUtils.isBlank(sqlStr)) { if (StringUtils.isBlank(sqlStr)) {
// todo 何时会这样? // todo 何时会这样?
@ -563,10 +572,6 @@ public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<
return () -> columnToString(column); return () -> columnToString(column);
} }
protected final <X> ISqlSegment columnToSqlSegment(SFunction<X, ?> column, boolean hasAlias) {
return () -> columnToString(column, hasAlias);
}
/** /**
* 获取 columnName * 获取 columnName
*/ */
@ -574,10 +579,6 @@ public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<
return (String) column; return (String) column;
} }
protected <X> String columnToString(X column, boolean hasAlias) {
return (String) column;
}
/** /**
* 多字段转换为逗号 "," 分割字符串 * 多字段转换为逗号 "," 分割字符串
* *
@ -633,4 +634,36 @@ public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<
public <R, S> Children le(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val) { public <R, S> Children le(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val) {
return addCondition(condition, column, LE, val); return addCondition(condition, column, LE, val);
} }
@Override
public <R, S, U> Children between(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val1, SFunction<U, ?> val2) {
return maybeDo(condition, () -> appendSqlSegments(columnToSqlSegment(column), BETWEEN,
columnToSqlSegment(val1), AND, columnToSqlSegment(val2)));
}
public <R, S> Children between(boolean condition, SFunction<R, ?> column, Object val1, SFunction<S, ?> val2) {
return maybeDo(condition, () -> appendSqlSegments(columnToSqlSegment(column), BETWEEN,
() -> formatParam(null, val1), AND, columnToSqlSegment(val2)));
}
public <R, S> Children between(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val1, Object val2) {
return maybeDo(condition, () -> appendSqlSegments(columnToSqlSegment(column), BETWEEN,
columnToSqlSegment(val1), AND, () -> formatParam(null, val2)));
}
@Override
public <R, S, U> Children notBetween(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val1, SFunction<U, ?> val2) {
return maybeDo(condition, () -> appendSqlSegments(columnToSqlSegment(column), NOT_BETWEEN,
columnToSqlSegment(val1), AND, columnToSqlSegment(val2)));
}
public <R, U> Children notBetween(boolean condition, SFunction<R, ?> column, Object val1, SFunction<U, ?> val2) {
return maybeDo(condition, () -> appendSqlSegments(columnToSqlSegment(column), NOT_BETWEEN,
() -> formatParam(null, val1), AND, columnToSqlSegment(val2)));
}
public <R, S> Children notBetween(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val1, Object val2) {
return maybeDo(condition, () -> appendSqlSegments(columnToSqlSegment(column), NOT_BETWEEN,
columnToSqlSegment(val1), AND, () -> formatParam(null, val2)));
}
} }

View File

@ -2,7 +2,9 @@ package com.github.yulichang.wrapper;
import com.baomidou.mybatisplus.core.conditions.SharedString; import com.baomidou.mybatisplus.core.conditions.SharedString;
import com.baomidou.mybatisplus.core.conditions.segments.MergeSegments; import com.baomidou.mybatisplus.core.conditions.segments.MergeSegments;
import com.baomidou.mybatisplus.core.metadata.*; import com.baomidou.mybatisplus.core.metadata.TableFieldInfo;
import com.baomidou.mybatisplus.core.metadata.TableInfo;
import com.baomidou.mybatisplus.core.metadata.TableInfoHelper;
import com.baomidou.mybatisplus.core.toolkit.*; import com.baomidou.mybatisplus.core.toolkit.*;
import com.baomidou.mybatisplus.core.toolkit.support.SFunction; import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
import com.github.yulichang.toolkit.Constant; import com.github.yulichang.toolkit.Constant;
@ -11,10 +13,13 @@ import com.github.yulichang.wrapper.enums.BaseFuncEnum;
import com.github.yulichang.wrapper.interfaces.LambdaJoin; import com.github.yulichang.wrapper.interfaces.LambdaJoin;
import com.github.yulichang.wrapper.interfaces.Query; import com.github.yulichang.wrapper.interfaces.Query;
import com.github.yulichang.wrapper.interfaces.on.OnFunction; import com.github.yulichang.wrapper.interfaces.on.OnFunction;
import lombok.Data;
import lombok.Getter;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.List; import java.util.List;
import java.util.Map; import java.util.Map;
import java.util.Objects;
import java.util.concurrent.atomic.AtomicInteger; import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Predicate; import java.util.function.Predicate;
import java.util.stream.Collectors; import java.util.stream.Collectors;
@ -28,40 +33,61 @@ import java.util.stream.Collectors;
* @author yulichang * @author yulichang
* @see com.github.yulichang.toolkit.Wrappers * @see com.github.yulichang.toolkit.Wrappers
*/ */
@SuppressWarnings("unused") @SuppressWarnings("all")
public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWrapper<T>> public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWrapper<T>>
implements Query<MPJLambdaWrapper<T>>, LambdaJoin<MPJLambdaWrapper<T>> { implements Query<MPJLambdaWrapper<T>>, LambdaJoin<MPJLambdaWrapper<T>> {
/** /**
* 查询字段 sql * 查询字段 sql
*/ */
private final SharedString sqlSelect = new SharedString(); private SharedString sqlSelect = new SharedString();
/** /**
* 查询表 * 查询表
*/ */
private final SharedString from = new SharedString(); private final SharedString from = new SharedString();
/**
* 主表别名
*/
private final SharedString alias = new SharedString(Constant.TABLE_ALIAS);
/** /**
* 查询的字段 * 查询的字段
*/ */
private final List<String> selectColumns = new ArrayList<>(); private final List<SelectColumn> selectColumns = new ArrayList<>();
/** /**
* 忽略查询的字段 * 忽略查询的字段
*/ */
private final List<String> ignoreColumns = new ArrayList<>(); private final List<SelectColumn> ignoreColumns = new ArrayList<>();
/**
* 表序号
*/
private int tableIndex = 1;
/** /**
* ON sql wrapper集合 * ON sql wrapper集合
*/ */
private final List<String> joinSql = new ArrayList<>(); private final List<MPJLambdaWrapper<?>> onWrappers = new ArrayList<>();
/**
* 连表关键字 on 条件 func 使用
*/
@Getter
private String keyWord;
/**
* 连表实体类 on 条件 func 使用
*/
@Getter
private Class<?> joinClass;
/** /**
* 不建议直接 new 该实例使用 Wrappers.lambdaQuery() * 不建议直接 new 该实例使用 Wrappers.lambdaQuery()
*/ */
public MPJLambdaWrapper() { public MPJLambdaWrapper() {
this.hasAlias = true;
super.initNeed(); super.initNeed();
} }
@ -69,27 +95,22 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
/** /**
* 不建议直接 new 该实例使用 Wrappers.lambdaQuery(...) * 不建议直接 new 该实例使用 Wrappers.lambdaQuery(...)
*/ */
MPJLambdaWrapper(Class<?> entityClass, AtomicInteger paramNameSeq, MPJLambdaWrapper(T entity, Class<T> entityClass, SharedString sqlSelect, AtomicInteger paramNameSeq,
Map<String, Object> paramNameValuePairs, MergeSegments mergeSegments, Map<String, Object> paramNameValuePairs, MergeSegments mergeSegments,
SharedString lastSql, SharedString sqlComment, SharedString sqlFirst, boolean hasAlias) { SharedString lastSql, SharedString sqlComment, SharedString sqlFirst,
this.entityClass = entityClass; Map<Class<?>, Integer> subTable, String keyWord, Class<?> joinClass) {
super.setEntity(entity);
super.setEntityClass(entityClass);
this.paramNameSeq = paramNameSeq; this.paramNameSeq = paramNameSeq;
this.paramNameValuePairs = paramNameValuePairs; this.paramNameValuePairs = paramNameValuePairs;
this.expression = mergeSegments; this.expression = mergeSegments;
this.sqlSelect = sqlSelect;
this.lastSql = lastSql; this.lastSql = lastSql;
this.sqlComment = sqlComment; this.sqlComment = sqlComment;
this.sqlFirst = sqlFirst; this.sqlFirst = sqlFirst;
this.hasAlias = hasAlias; this.subTable = subTable;
} this.keyWord = keyWord;
this.joinClass = joinClass;
@Override
protected MPJLambdaWrapper<T> instance() {
return instance(true, null);
}
protected MPJLambdaWrapper<T> instance(boolean hasAlias, Class<?> entityClass) {
return new MPJLambdaWrapper<>(entityClass, paramNameSeq, paramNameValuePairs, new MergeSegments(),
SharedString.emptyString(), SharedString.emptyString(), SharedString.emptyString(), hasAlias);
} }
@Override @Override
@ -97,7 +118,7 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
public final <S> MPJLambdaWrapper<T> select(SFunction<S, ?>... columns) { public final <S> MPJLambdaWrapper<T> select(SFunction<S, ?>... columns) {
if (ArrayUtils.isNotEmpty(columns)) { if (ArrayUtils.isNotEmpty(columns)) {
for (SFunction<S, ?> s : columns) { for (SFunction<S, ?> s : columns) {
selectColumns.add(getThisAlias(s) + getCache(s).getColumn()); selectColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(s), getCache(s).getColumn()));
} }
} }
return typedThis; return typedThis;
@ -107,23 +128,20 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
public <E> MPJLambdaWrapper<T> select(Class<E> entityClass, Predicate<TableFieldInfo> predicate) { public <E> MPJLambdaWrapper<T> select(Class<E> entityClass, Predicate<TableFieldInfo> predicate) {
TableInfo info = TableInfoHelper.getTableInfo(entityClass); TableInfo info = TableInfoHelper.getTableInfo(entityClass);
Assert.notNull(info, "table can not be find"); Assert.notNull(info, "table can not be find");
MPJTableAliasHelper.TableAlias alias = MPJTableAliasHelper.get(entityClass); info.getFieldList().stream().filter(predicate).collect(Collectors.toList()).forEach(
info.getFieldList().stream().filter(predicate).collect(Collectors.toList()).forEach(i -> i -> selectColumns.add(SelectColumn.of(entityClass, i.getColumn())));
selectColumns.add((hasAlias ? alias.getAliasDOT() : StringPool.EMPTY) + i.getColumn()));
return typedThis; return typedThis;
} }
@Override @Override
public <S> MPJLambdaWrapper<T> selectAs(SFunction<S, ?> column, String alias) { public <S> MPJLambdaWrapper<T> selectAs(SFunction<S, ?> column, String alias) {
selectColumns.add(getThisAlias(column) + getCache(column).getColumn() + Constants.AS + alias); selectColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(column), getCache(column).getColumn(), alias));
return typedThis; return typedThis;
} }
public <S> MPJLambdaWrapper<T> selectFunc(boolean condition, BaseFuncEnum funcEnum, SFunction<S, ?> column, public <S> MPJLambdaWrapper<T> selectFunc(boolean condition, BaseFuncEnum funcEnum, SFunction<S, ?> column, String alias) {
String alias) {
if (condition) { if (condition) {
selectColumns.add(String.format(funcEnum.getSql(), getThisAlias(column) + getCache(column).getColumn()) selectColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(column), getCache(column).getColumn(), alias, funcEnum));
+ Constants.AS + alias);
} }
return typedThis; return typedThis;
} }
@ -131,7 +149,7 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
@Override @Override
public MPJLambdaWrapper<T> selectFunc(boolean condition, BaseFuncEnum funcEnum, Object column, String alias) { public MPJLambdaWrapper<T> selectFunc(boolean condition, BaseFuncEnum funcEnum, Object column, String alias) {
if (condition) { if (condition) {
selectColumns.add(String.format(funcEnum.getSql(), column.toString()) + Constants.AS + alias); selectColumns.add(SelectColumn.of(null, column.toString(), alias, funcEnum));
} }
return typedThis; return typedThis;
} }
@ -139,12 +157,11 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
public final MPJLambdaWrapper<T> selectAll(Class<?> clazz) { public final MPJLambdaWrapper<T> selectAll(Class<?> clazz) {
TableInfo info = TableInfoHelper.getTableInfo(clazz); TableInfo info = TableInfoHelper.getTableInfo(clazz);
Assert.notNull(info, "table can not be find -> %s", clazz); Assert.notNull(info, "table can not be find -> %s", clazz);
String dot = hasAlias ? MPJTableAliasHelper.get(clazz).getAliasDOT() : StringPool.EMPTY;
if (info.havePK()) { if (info.havePK()) {
selectColumns.add(dot + info.getKeyColumn()); selectColumns.add(SelectColumn.of(clazz, info.getKeyColumn()));
} }
info.getFieldList().stream().filter(TableFieldInfo::isSelect).forEach(c -> info.getFieldList().forEach(c ->
selectColumns.add(dot + c.getColumn())); selectColumns.add(SelectColumn.of(clazz, c.getColumn())));
return typedThis; return typedThis;
} }
@ -153,21 +170,12 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
public final <S> MPJLambdaWrapper<T> selectIgnore(SFunction<S, ?>... columns) { public final <S> MPJLambdaWrapper<T> selectIgnore(SFunction<S, ?>... columns) {
if (ArrayUtils.isNotEmpty(columns)) { if (ArrayUtils.isNotEmpty(columns)) {
for (SFunction<S, ?> s : columns) { for (SFunction<S, ?> s : columns) {
ignoreColumns.add(getThisAlias(s) + getCache(s).getColumn()); ignoreColumns.add(SelectColumn.of(LambdaUtils.getEntityClass(s), getCache(s).getColumn()));
} }
} }
return typedThis; return typedThis;
} }
@Override
public MPJLambdaWrapper<T> selectQuery(Class<?> clazz, OnFunction function, String alias) {
MPJLambdaWrapper<?> apply = function.apply(instance(false, clazz));
selectColumns.add(String.format("(SELECT %s FROM %s %s)", apply.getSqlSelect(),
TableInfoHelper.getTableInfo(clazz).getTableName(), apply.getCustomSqlSegment()) + Constants.AS + alias);
return this;
}
/** /**
* 查询条件 SQL 片段 * 查询条件 SQL 片段
*/ */
@ -175,9 +183,15 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
public String getSqlSelect() { public String getSqlSelect() {
if (StringUtils.isBlank(sqlSelect.getStringValue())) { if (StringUtils.isBlank(sqlSelect.getStringValue())) {
if (CollectionUtils.isNotEmpty(ignoreColumns)) { if (CollectionUtils.isNotEmpty(ignoreColumns)) {
selectColumns.removeIf(ignoreColumns::contains); selectColumns.removeIf(c -> c.getFuncEnum() == null && ignoreColumns.stream().anyMatch(i ->
i.getClazz() == c.getClazz() && Objects.equals(c.getColumnName(), i.getColumnName())));
} }
sqlSelect.setStringValue(String.join(StringPool.COMMA, selectColumns)); String s = selectColumns.stream().map(i -> {
String str = Constant.TABLE_ALIAS + getDefault(subTable.get(i.getClazz())) + StringPool.DOT + i.getColumnName();
return (i.getFuncEnum() == null ? str : String.format(i.getFuncEnum().getSql(), str)) +
(StringUtils.isBlank(i.getAlias()) ? StringPool.EMPTY : (Constant.AS + i.getAlias()));
}).collect(Collectors.joining(StringPool.COMMA));
sqlSelect.setStringValue(s);
} }
return sqlSelect.getStringValue(); return sqlSelect.getStringValue();
} }
@ -187,15 +201,39 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
*/ */
public String getFrom() { public String getFrom() {
if (StringUtils.isBlank(from.getStringValue())) { if (StringUtils.isBlank(from.getStringValue())) {
from.setStringValue(String.join(StringPool.SPACE, joinSql)); StringBuilder value = new StringBuilder();
for (MPJLambdaWrapper<?> wrapper : onWrappers) {
String tableName = TableInfoHelper.getTableInfo(wrapper.getJoinClass()).getTableName();
value.append(wrapper.getKeyWord())
.append(tableName)
.append(Constant.SPACE_TABLE_ALIAS)
.append(subTable.get(wrapper.getJoinClass()))
.append(Constant.ON)
.append(wrapper.getExpression().getNormal().getSqlSegment());
}
from.setStringValue(value.toString());
} }
return from.getStringValue(); return from.getStringValue();
} }
public boolean getAutoAlias() { public String getAlias() {
return true; return alias.getStringValue();
} }
/**
* 用于生成嵌套 sql
* <p> sqlSelect 不向下传递</p>
*/
@Override
protected MPJLambdaWrapper<T> instance() {
return instance(null, null);
}
protected MPJLambdaWrapper<T> instance(String keyWord, Class<?> joinClass) {
return new MPJLambdaWrapper<>(getEntity(), getEntityClass(), null, paramNameSeq, paramNameValuePairs,
new MergeSegments(), SharedString.emptyString(), SharedString.emptyString(), SharedString.emptyString(),
this.subTable, keyWord, joinClass);
}
@Override @Override
public void clear() { public void clear() {
@ -204,21 +242,68 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
from.toNull(); from.toNull();
selectColumns.clear(); selectColumns.clear();
ignoreColumns.clear(); ignoreColumns.clear();
joinSql.clear(); subTable.clear();
} }
@Override @Override
public <R> MPJLambdaWrapper<T> join(String keyWord, boolean condition, Class<R> clazz, OnFunction function) { public <R> MPJLambdaWrapper<T> join(String keyWord, boolean condition, Class<R> clazz, OnFunction function) {
if (condition) { if (condition) {
joinSql.add(keyWord + TableInfoHelper.getTableInfo(clazz).getTableName() + MPJLambdaWrapper<?> apply = function.apply(instance(keyWord, clazz));
Constants.SPACE + MPJTableAliasHelper.get(clazz).getAlias() + onWrappers.add(apply);
Constant.ON + function.apply(instance()).getExpression().getNormal().getSqlSegment()); subTable.put(clazz, tableIndex);
tableIndex++;
} }
return typedThis; return typedThis;
} }
private String getThisAlias(SFunction<?, ?> function) { /**
return hasAlias ? MPJTableAliasHelper.get(LambdaUtils.getEntityClass(function)).getAliasDOT() : * select字段
StringPool.EMPTY; */
@Data
public static class SelectColumn {
/**
* 字段实体类
*/
private Class<?> clazz;
/**
* 数据库字段名
*/
private String columnName;
/**
* 字段别名
*/
private String alias;
/**
* 字段函数
*/
private BaseFuncEnum funcEnum;
/**
* 自定义函数填充参数
*/
private List<SFunction<?, ?>> funcArgs;
private SelectColumn(Class<?> clazz, String columnName, String alias, BaseFuncEnum funcEnum) {
this.clazz = clazz;
this.columnName = columnName;
this.alias = alias;
this.funcEnum = funcEnum;
}
public static SelectColumn of(Class<?> clazz, String columnName) {
return new SelectColumn(clazz, columnName, null, null);
}
public static SelectColumn of(Class<?> clazz, String columnName, String alias) {
return new SelectColumn(clazz, columnName, alias, null);
}
public static SelectColumn of(Class<?> clazz, String columnName, String alias, BaseFuncEnum funcEnum) {
return new SelectColumn(clazz, columnName, alias, funcEnum);
}
} }
} }

View File

@ -5,7 +5,6 @@ import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
import com.github.yulichang.toolkit.LambdaUtils; import com.github.yulichang.toolkit.LambdaUtils;
import com.github.yulichang.wrapper.enums.BaseFuncEnum; import com.github.yulichang.wrapper.enums.BaseFuncEnum;
import com.github.yulichang.wrapper.enums.DefaultFuncEnum; import com.github.yulichang.wrapper.enums.DefaultFuncEnum;
import com.github.yulichang.wrapper.interfaces.on.OnFunction;
import java.io.Serializable; import java.io.Serializable;
import java.util.function.Predicate; import java.util.function.Predicate;
@ -52,22 +51,6 @@ public interface Query<Children> extends Serializable {
*/ */
<S> Children selectAs(SFunction<S, ?> column, String alias); <S> Children selectAs(SFunction<S, ?> column, String alias);
/**
* 子查询
*
* @param clazz 查询的类
* @param function 查询lambda
* @param alias 别名
*/
Children selectQuery(Class<?> clazz, OnFunction function, String alias);
/**
* ignore
*/
default <S> Children selectQuery(Class<?> clazz, OnFunction function, SFunction<S, ?> alias) {
return selectQuery(clazz, function, LambdaUtils.getName(alias));
}
/** /**
* 聚合函数查询 * 聚合函数查询
* *

View File

@ -115,4 +115,40 @@ public interface OnCompare<Children> extends Serializable {
* @return children * @return children
*/ */
<R, S> Children le(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val); <R, S> Children le(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val);
/**
* ignore
*/
default <R, S, T> Children between(SFunction<R, ?> column, SFunction<S, ?> val1, SFunction<T, ?> val2) {
return between(true, column, val1, val2);
}
/**
* BETWEEN 值1 AND 值2
*
* @param condition 执行条件
* @param column 字段
* @param val1 值1
* @param val2 值2
* @return children
*/
<R, S, T> Children between(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val1, SFunction<T, ?> val2);
/**
* ignore
*/
default <R, S, T> Children notBetween(SFunction<R, ?> column, SFunction<S, ?> val1, SFunction<T, ?> val2) {
return notBetween(true, column, val1, val2);
}
/**
* NOT BETWEEN 值1 AND 值2
*
* @param condition 执行条件
* @param column 字段
* @param val1 值1
* @param val2 值2
* @return children
*/
<R, S, T> Children notBetween(boolean condition, SFunction<R, ?> column, SFunction<S, ?> val1, SFunction<T, ?> val2);
} }