public class LambdaQueryWrapper<T> extends AbstractLambdaWrapper<T,LambdaQueryWrapper<T>> implements Query<LambdaQueryWrapper<T>,T,SFunction<T,?>>
AbstractWrapper.DoSomethingexpression, lastSql, paramAlias, paramNameSeq, paramNameValuePairs, sqlComment, sqlFirst, typedThis| 构造器和说明 |
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LambdaQueryWrapper() |
LambdaQueryWrapper(java.lang.Class<T> entityClass) |
LambdaQueryWrapper(T entity) |
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void |
clear()
条件清空
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java.lang.String |
getSqlSelect()
查询条件 SQL 片段
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protected LambdaQueryWrapper<T> |
instance()
用于生成嵌套 sql
故 sqlSelect 不向下传递
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LambdaQueryWrapper<T> |
select(java.lang.Class<T> entityClass,
java.util.function.Predicate<TableFieldInfo> predicate)
过滤查询的字段信息(主键除外!)
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LambdaQueryWrapper<T> |
select(SFunction<T,?>... columns)
SELECT 部分 SQL 设置
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columnsToString, columnsToString, columnToString, columnToString, getColumnCacheaddCondition, addNestedCondition, allEq, allEq, and, and, appendSqlSegments, apply, between, clone, columnSqlInjectFilter, columnToSqlSegment, comment, eq, exists, first, formatParam, formatSqlMaybeWithParam, func, ge, getEntity, getEntityClass, getExpression, getParamAlias, getParamNameValuePairs, getSqlComment, getSqlFirst, getSqlSegment, groupBy, gt, having, in, in, inExpression, inExpression, initNeed, inSql, isNotNull, isNull, last, le, like, likeLeft, likeRight, likeValue, lt, maybeDo, ne, nested, not, not, notBetween, notExists, notIn, notIn, notInSql, notLike, or, or, orderBy, setEntity, setEntityClass, setParamAliasgetCustomSqlSegment, getSqlSet, getTargetSql, isEmptyOfEntity, isEmptyOfNormal, isEmptyOfWhere, nonEmptyOfEntity, nonEmptyOfNormal, nonEmptyOfWhereequals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitallEq, allEq, allEq, allEq, between, eq, ge, gt, le, like, likeLeft, likeRight, lt, ne, notBetween, notLikeapply, comment, exists, first, last, notExists, orfunc, groupBy, having, in, in, inSql, isNotNull, isNull, notIn, notIn, notInSql, orderByAsc, orderByAsc, orderByDesc, orderByDescpublic LambdaQueryWrapper()
public LambdaQueryWrapper(T entity)
public LambdaQueryWrapper(java.lang.Class<T> entityClass)
@SafeVarargs public final LambdaQueryWrapper<T> select(SFunction<T,?>... columns)
public LambdaQueryWrapper<T> select(java.lang.Class<T> entityClass, java.util.function.Predicate<TableFieldInfo> predicate)
例1: 只要 java 字段名以 "test" 开头的 -> select(i -> i.getProperty().startsWith("test"))
例2: 只要 java 字段属性是 CharSequence 类型的 -> select(TableFieldInfo::isCharSequence)
例3: 只要 java 字段没有填充策略的 -> select(i -> i.getFieldFill() == FieldFill.DEFAULT)
例4: 要全部字段 -> select(i -> true)
例5: 只要主键字段 -> select(i -> false)
public java.lang.String getSqlSelect()
QuerygetSqlSelect 在接口中 Query<LambdaQueryWrapper<T>,T,SFunction<T,?>>getSqlSelect 在类中 Wrapper<T>protected LambdaQueryWrapper<T> instance()
故 sqlSelect 不向下传递
instance 在类中 AbstractWrapper<T,SFunction<T,?>,LambdaQueryWrapper<T>>public void clear()
Wrapperclear 在类中 AbstractWrapper<T,SFunction<T,?>,LambdaQueryWrapper<T>>