本文整理汇总了Java中com.querydsl.jpa.impl.JPAQueryFactory.select方法的典型用法代码示例。如果您正苦于以下问题：Java JPAQueryFactory.select方法的具体用法？Java JPAQueryFactory.select怎么用？Java JPAQueryFactory.select使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.querydsl.jpa.impl.JPAQueryFactory的用法示例。
在下文中一共展示了JPAQueryFactory.select方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: QuerydslQueryBackend
import com.querydsl.jpa.impl.JPAQueryFactory; //导入方法依赖的package包/类
public QuerydslQueryBackend(QuerydslQueryImpl<T> queryImpl, Class<T> clazz, MetaDataObject parentMeta,
MetaAttribute parentAttr, boolean addParentSelection) {
this.queryImpl = queryImpl;
JPAQueryFactory queryFactory = queryImpl.getQueryFactory();
if (parentMeta != null) {
parentFrom = QuerydslUtils.getEntityPath(parentMeta.getImplementationClass());
root = QuerydslUtils.getEntityPath(clazz);
Path joinPath = (Path) QuerydslUtils.get(parentFrom, parentAttr.getName());
joinHelper = new JoinRegistry<>(this, queryImpl);
joinHelper.putJoin(new MetaAttributePath(), root);
if (addParentSelection) {
Expression<Object> parentIdExpr = getParentIdExpression(parentMeta, parentAttr);
querydslQuery = queryFactory.select(parentIdExpr, root);
} else {
querydslQuery = queryFactory.select(root);
}
querydslQuery = querydslQuery.from(parentFrom);
if (joinPath instanceof CollectionExpression) {
querydslQuery = querydslQuery.join((CollectionExpression) joinPath, root);
} else {
querydslQuery = querydslQuery.join((EntityPath) joinPath, root);
}
} else {
root = QuerydslUtils.getEntityPath(clazz);
joinHelper = new JoinRegistry<>(this, queryImpl);
joinHelper.putJoin(new MetaAttributePath(), root);
querydslQuery = queryFactory.select(root);
querydslQuery = querydslQuery.from((EntityPath) root);
}
}
示例2: QuerydslQueryBackend
import com.querydsl.jpa.impl.JPAQueryFactory; //导入方法依赖的package包/类
public QuerydslQueryBackend(QuerydslQueryImpl<T> queryImpl, Class<T> clazz, MetaDataObject parentMeta,
MetaAttribute parentAttr, boolean addParentSelection) {
this.queryImpl = queryImpl;
JPAQueryFactory queryFactory = queryImpl.getQueryFactory();
if (parentMeta != null) {
parentFrom = QuerydslUtils.getEntityPath(parentMeta.getImplementationClass());
root = QuerydslUtils.getEntityPath(clazz);
Path joinPath = (Path) QuerydslUtils.get(parentFrom, parentAttr.getName());
joinHelper = new JoinRegistry<>(this, queryImpl);
joinHelper.putJoin(new MetaAttributePath(), root);
if (addParentSelection) {
Expression<Object> parentIdExpr = getParentIdExpression(parentMeta, parentAttr);
querydslQuery = queryFactory.select(parentIdExpr, root);
}
else {
querydslQuery = queryFactory.select(root);
}
querydslQuery = querydslQuery.from(parentFrom);
if (joinPath instanceof CollectionExpression) {
querydslQuery = querydslQuery.join((CollectionExpression) joinPath, root);
}
else {
querydslQuery = querydslQuery.join((EntityPath) joinPath, root);
}
}
else {
root = QuerydslUtils.getEntityPath(clazz);
joinHelper = new JoinRegistry<>(this, queryImpl);
joinHelper.putJoin(new MetaAttributePath(), root);
querydslQuery = queryFactory.select(root);
querydslQuery = querydslQuery.from((EntityPath) root);
}
}