JpaQuery (com.holon-platform.jpa:holon-datastore-jpa-querydsl-root 5.0.1 API)

java.lang.Object
- com.querydsl.core.support.QueryBase<Q>
- - com.querydsl.core.support.FetchableQueryBase<T,Q>
  - - com.querydsl.core.support.FetchableSubQueryBase<T,Q>
    - - com.querydsl.jpa.JPAQueryBase<T,Q>
      - com.querydsl.jpa.impl.AbstractJPAQuery<T,JpaQuery<T>>
        
        com.holonplatform.datastore.jpa.querydsl.JpaQuery<T>

Type Parameters:

T - Query result type

All Implemented Interfaces:

com.holonplatform.core.ExpressionResolver.ExpressionResolverBuilder<JpaQuery<T>>, com.holonplatform.core.query.QueryAggregation.QueryAggregationSupport<JpaQuery<T>>, com.holonplatform.core.query.QueryFilter.QueryFilterSupport<JpaQuery<T>>, com.holonplatform.core.query.QuerySort.QuerySortSupport<JpaQuery<T>>, com.querydsl.core.Fetchable<T>, com.querydsl.core.FetchableQuery<T,com.querydsl.jpa.JPQLQuery<T>>, com.querydsl.core.FilteredClause<com.querydsl.jpa.JPQLQuery<T>>, com.querydsl.core.Query<com.querydsl.jpa.JPQLQuery<T>>, com.querydsl.core.SimpleQuery<com.querydsl.jpa.JPQLQuery<T>>, com.querydsl.core.support.ExtendedSubQuery<T>, com.querydsl.core.types.Expression<T>, com.querydsl.core.types.SubQueryExpression<T>, com.querydsl.jpa.JPQLQuery<T>, Serializable
```
public class JpaQuery<T>
extends com.querydsl.jpa.impl.AbstractJPAQuery<T,JpaQuery<T>>
implements com.holonplatform.core.query.QueryFilter.QueryFilterSupport<JpaQuery<T>>, com.holonplatform.core.query.QuerySort.QuerySortSupport<JpaQuery<T>>, com.holonplatform.core.query.QueryAggregation.QueryAggregationSupport<JpaQuery<T>>, com.holonplatform.core.ExpressionResolver.ExpressionResolverBuilder<JpaQuery<T>>
```
A QueryDSL (www.querydsl.com) JPQLQuery extension that supports Query clauses and ExpressionResolvers.
Furthermore, some QueryDSL 3.x backward compatibility methods are provided, such as list(Expression) and uniqueResult(Expression).

Since:

5.0.0

See Also:

Serialized Form

Field Summary
- Fields inherited from class com.querydsl.core.support.QueryBase
  MDC_PARAMETERS, MDC_QUERY

Constructor Summary

Constructors
Constructor and Description
`JpaQuery(com.holonplatform.core.ExpressionResolver.ExpressionResolverSupport expressionResolversProvider, javax.persistence.EntityManager entityManager)` Constructor

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`JpaQuery<T>`	`aggregate(com.holonplatform.core.query.QueryAggregation aggregation)`
`JpaQuery<T>`	`clone(javax.persistence.EntityManager entityManager)`
`JpaQuery<T>`	`clone(javax.persistence.EntityManager entityManager, com.querydsl.jpa.JPQLTemplates templates)`
`long`	`count()` Shorter for count(*) on selected entity path
`JpaQuery<T>`	`filter(com.holonplatform.core.query.QueryFilter filter)`
`<RT> List<RT>`	`list(com.querydsl.core.types.Expression<RT> projection)` Convenience method for QueryDSL 3.x backward compatibility: execute query and returns results list.
`JpaQuery<com.querydsl.core.Tuple>`	`select(com.querydsl.core.types.Expression<?>... exprs)` Change the projection of this query
`<U> JpaQuery<U>`	`select(com.querydsl.core.types.Expression<U> expr)` Change the projection of this query
`<RT> RT`	`singleResult(com.querydsl.core.types.Expression<RT> projection)` Convenience method for QueryDSL 3.x backward compatibility: return a single result for the given projection or `null` if no result is found.
`JpaQuery<T>`	`sort(com.holonplatform.core.query.QuerySort sort)`
`<RT> RT`	`uniqueResult(com.querydsl.core.types.Expression<RT> projection)` Convenience method for QueryDSL 3.x backward compatibility: return a unique result for the given projection or `null` if no result is found.
`<E extends com.holonplatform.core.Expression,R extends com.holonplatform.core.Expression> JpaQuery<T>`	`withExpressionResolver(com.holonplatform.core.ExpressionResolver<E,R> expressionResolver)`

Methods inherited from class com.querydsl.jpa.impl.AbstractJPAQuery
clone, createQuery, fetch, fetchCount, fetchOne, fetchResults, iterate, setFlushMode, setHint, setLockMode

Methods inherited from class com.querydsl.jpa.JPAQueryBase
fetchAll, fetchJoin, from, from, from, innerJoin, innerJoin, innerJoin, innerJoin, innerJoin, innerJoin, join, join, join, join, join, join, leftJoin, leftJoin, leftJoin, leftJoin, leftJoin, leftJoin, on, on, rightJoin, rightJoin, rightJoin, rightJoin, rightJoin, rightJoin, toString

Methods inherited from class com.querydsl.core.support.FetchableSubQueryBase
accept, contains, contains, eq, eq, exists, getMetadata, getType, goe, goe, gt, gt, hashCode, in, in, isNotNull, isNull, loe, loe, lt, lt, ne, ne, notExists

Methods inherited from class com.querydsl.core.support.FetchableQueryBase
equals, fetchFirst, transform

Methods inherited from class com.querydsl.core.support.QueryBase
groupBy, having, orderBy, where

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.holonplatform.core.query.QueryAggregation.QueryAggregationSupport
aggregate, aggregate

Methods inherited from interface com.querydsl.core.FetchableQuery
transform

Methods inherited from interface com.querydsl.core.Fetchable
fetchFirst

Methods inherited from interface com.querydsl.core.support.ExtendedSubQuery
contains, contains, eq, eq, exists, goe, goe, gt, gt, in, in, isNotNull, isNull, loe, loe, lt, lt, ne, ne, notExists

Methods inherited from interface com.querydsl.core.types.SubQueryExpression
getMetadata

Methods inherited from interface com.querydsl.core.types.Expression
accept, getType

- Constructor Detail
  - JpaQuery
```
public JpaQuery(com.holonplatform.core.ExpressionResolver.ExpressionResolverSupport expressionResolversProvider,
                javax.persistence.EntityManager entityManager)
```
    Constructor
    
    Parameters:
    
    expressionResolversProvider - Optional ExpressionResolver.ExpressionResolverSupport to inherit expression resolvers from
    
    entityManager - EntityManager
- Method Detail
  - clone
```
public JpaQuery<T> clone(javax.persistence.EntityManager entityManager,
                         com.querydsl.jpa.JPQLTemplates templates)
```
    Specified by:
    
    clone in class com.querydsl.jpa.impl.AbstractJPAQuery<T,JpaQuery<T>>
  - clone
```
public JpaQuery<T> clone(javax.persistence.EntityManager entityManager)
```
    Specified by:
    
    clone in class com.querydsl.jpa.impl.AbstractJPAQuery<T,JpaQuery<T>>
  - select
```
public <U> JpaQuery<U> select(com.querydsl.core.types.Expression<U> expr)
```
    Change the projection of this query
    
    Specified by:
    
    select in interface com.querydsl.core.FetchableQuery<T,com.querydsl.jpa.JPQLQuery<T>>
    
    Specified by:
    
    select in interface com.querydsl.jpa.JPQLQuery<T>
    
    Type Parameters:
    
    U - Results type
    
    Parameters:
    
    expr - new projection
    
    Returns:
    
    the current object
  - select
```
public JpaQuery<com.querydsl.core.Tuple> select(com.querydsl.core.types.Expression<?>... exprs)
```
    Change the projection of this query
    
    Specified by:
    
    select in interface com.querydsl.core.FetchableQuery<T,com.querydsl.jpa.JPQLQuery<T>>
    
    Specified by:
    
    select in interface com.querydsl.jpa.JPQLQuery<T>
    
    Parameters:
    
    exprs - new projection
    
    Returns:
    
    the current object
  - count
```
public long count()
```
    Shorter for count(*) on selected entity path
    
    Returns:
    
    Count result
  - withExpressionResolver
```
public <E extends com.holonplatform.core.Expression,R extends com.holonplatform.core.Expression> JpaQuery<T> withExpressionResolver(com.holonplatform.core.ExpressionResolver<E,R> expressionResolver)
```
    Specified by:
    
    withExpressionResolver in interface com.holonplatform.core.ExpressionResolver.ExpressionResolverBuilder<JpaQuery<T>>
  - sort
```
public JpaQuery<T> sort(com.holonplatform.core.query.QuerySort sort)
```
    Specified by:
    
    sort in interface com.holonplatform.core.query.QuerySort.QuerySortSupport<JpaQuery<T>>
  - filter
```
public JpaQuery<T> filter(com.holonplatform.core.query.QueryFilter filter)
```
    Specified by:
    
    filter in interface com.holonplatform.core.query.QueryFilter.QueryFilterSupport<JpaQuery<T>>
  - aggregate
```
public JpaQuery<T> aggregate(com.holonplatform.core.query.QueryAggregation aggregation)
```
    Specified by:
    
    aggregate in interface com.holonplatform.core.query.QueryAggregation.QueryAggregationSupport<JpaQuery<T>>
  - list
```
public <RT> List<RT> list(com.querydsl.core.types.Expression<RT> projection)
```
    Convenience method for QueryDSL 3.x backward compatibility: execute query and returns results list. An empty list is returned when no result is found.
    
    Type Parameters:
    
    RT - Result type
    
    Parameters:
    
    projection - Projection
    
    Returns:
    
    a List over the projection
  - singleResult
```
public <RT> RT singleResult(com.querydsl.core.types.Expression<RT> projection)
```
    Convenience method for QueryDSL 3.x backward compatibility: return a single result for the given projection or null if no result is found. For multiple results only the first one is returned.
    
    Type Parameters:
    
    RT - Result type
    
    Parameters:
    
    projection - Projection
    
    Returns:
    
    Single (first) result
  - uniqueResult
```
public <RT> RT uniqueResult(com.querydsl.core.types.Expression<RT> projection)
```
    Convenience method for QueryDSL 3.x backward compatibility: return a unique result for the given projection or null if no result is found.
    
    Type Parameters:
    
    RT - Result type
    
    Parameters:
    
    projection - Projection
    
    Returns:
    
    Unique result
    
    Throws:
    
    com.querydsl.core.NonUniqueResultException - if there is more than one matching result

Class JpaQuery<T>

Field Summary

Fields inherited from class com.querydsl.core.support.QueryBase

Constructor Summary

Method Summary

Methods inherited from class com.querydsl.jpa.impl.AbstractJPAQuery

Methods inherited from class com.querydsl.jpa.JPAQueryBase

Methods inherited from class com.querydsl.core.support.FetchableSubQueryBase

Methods inherited from class com.querydsl.core.support.FetchableQueryBase

Methods inherited from class com.querydsl.core.support.QueryBase

Methods inherited from class java.lang.Object

Methods inherited from interface com.holonplatform.core.query.QueryAggregation.QueryAggregationSupport

Methods inherited from interface com.querydsl.core.FetchableQuery

Methods inherited from interface com.querydsl.core.Fetchable

Methods inherited from interface com.querydsl.core.support.ExtendedSubQuery

Methods inherited from interface com.querydsl.core.types.SubQueryExpression

Methods inherited from interface com.querydsl.core.types.Expression

Constructor Detail

JpaQuery

Method Detail

clone

clone

select

select

count

withExpressionResolver

sort

filter

aggregate

list

singleResult

uniqueResult