third_codes/mybatis-plus-join
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yulichang 2024-08-25 21:17:00 +08:00
parent 42211407cd
commit 064f5ccaa9
1 changed files with 4 additions and 6 deletions
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10
mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/interfaces/Chain.java
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@ -22,8 +22,6 @@ import java.util.Optional;
@SuppressWarnings("unused") @SuppressWarnings("unused")
public interface Chain<T> extends MPJBaseJoin<T> { public interface Chain<T> extends MPJBaseJoin<T> {
Page<?> FIRST_PAGE = new Page<>(1, 1).setSearchCount(false);
Class<T> getEntityClass(); Class<T> getEntityClass();
boolean isResultMapCollection(); boolean isResultMapCollection();
@ -68,9 +66,9 @@ public interface Chain<T> extends MPJBaseJoin<T> {
* new MPJLambdaWrapper(User.class)<br /> * new MPJLambdaWrapper(User.class)<br />
* JoinWrappers.lambda(User.class)<br /> * JoinWrappers.lambda(User.class)<br />
*/ */
@SuppressWarnings("unchecked")
default T first() { default T first() {
List<T> list = this.isResultMapCollection() ? list() : page((Page<T>) FIRST_PAGE).getRecords(); List<T> list = this.isResultMapCollection() ? list() :
page(new Page<T>(1, 1).setSearchCount(false)).getRecords();
return Optional.of(list).filter(CollectionUtils::isNotEmpty).map(m -> m.get(0)).orElse(null); return Optional.of(list).filter(CollectionUtils::isNotEmpty).map(m -> m.get(0)).orElse(null);
} }
@ -81,9 +79,9 @@ public interface Chain<T> extends MPJBaseJoin<T> {
* new MPJLambdaWrapper(User.class)<br /> * new MPJLambdaWrapper(User.class)<br />
* JoinWrappers.lambda(User.class)<br /> * JoinWrappers.lambda(User.class)<br />
*/ */
@SuppressWarnings("unchecked")
default <R> R first(Class<R> resultType) { default <R> R first(Class<R> resultType) {
List<R> list = this.isResultMapCollection() ? list(resultType) : page((Page<R>) FIRST_PAGE, resultType).getRecords(); List<R> list = this.isResultMapCollection() ? list(resultType) :
page(new Page<R>(1, 1).setSearchCount(false), resultType).getRecords();
return Optional.of(list).filter(CollectionUtils::isNotEmpty).map(m -> m.get(0)).orElse(null); return Optional.of(list).filter(CollectionUtils::isNotEmpty).map(m -> m.get(0)).orElse(null);
} }