SubqueryImpl (DataNucleus JPA API plugin 3.2.0-m1 API)

java.lang.Object
- org.datanucleus.api.jpa.criteria.ExpressionImpl<T>
- - org.datanucleus.api.jpa.criteria.SubqueryImpl<T>

All Implemented Interfaces:

Serializable, javax.persistence.criteria.AbstractQuery<T>, javax.persistence.criteria.Expression<T>, javax.persistence.criteria.Selection<T>, javax.persistence.criteria.Subquery<T>, javax.persistence.TupleElement<T>
```
public class SubqueryImpl<T>
extends ExpressionImpl<T>
implements javax.persistence.criteria.Subquery<T>
```
Implementation of JPA2 Criteria "Subquery". A subquery in DataNucleus is represented as a variable (as it is in JDOQL), consequently this expression is backed by a VariableExpression.

See Also:
Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`protected CriteriaQueryImpl<T>`	`delegate`
`protected CriteriaQueryImpl<?>`	`parent`
`static Random`	`random` Random number generator, for use in naming subqueries

Constructor Summary

Constructors
Constructor and Description

SubqueryImpl(Class<T> type, javax.persistence.criteria.CriteriaQuery<?> query)

Constructors
Constructor and Description
`SubqueryImpl(Class<T> type, javax.persistence.criteria.CriteriaQuery<?> query)`

Method Summary

Methods
Modifier and Type	Method and Description
`<X,Y> javax.persistence.criteria.CollectionJoin<X,Y>`	`correlate(javax.persistence.criteria.CollectionJoin<X,Y> arg0)`
`<X,Y> javax.persistence.criteria.Join<X,Y>`	`correlate(javax.persistence.criteria.Join<X,Y> arg0)`
`<X,Y> javax.persistence.criteria.ListJoin<X,Y>`	`correlate(javax.persistence.criteria.ListJoin<X,Y> arg0)`
`<X,K,V> javax.persistence.criteria.MapJoin<X,K,V>`	`correlate(javax.persistence.criteria.MapJoin<X,K,V> arg0)`
`<Y> javax.persistence.criteria.Root<Y>`	`correlate(javax.persistence.criteria.Root<Y> arg0)`
`<X,Y> javax.persistence.criteria.SetJoin<X,Y>`	`correlate(javax.persistence.criteria.SetJoin<X,Y> arg0)`
`javax.persistence.criteria.Subquery<T>`	`distinct(boolean flag)`
`<X> javax.persistence.criteria.Root<X>`	`from(Class<X> cls)`
`<X> javax.persistence.criteria.Root<X>`	`from(javax.persistence.metamodel.EntityType<X> type)`
`Set<javax.persistence.criteria.Join<?,?>>`	`getCorrelatedJoins()`
`javax.persistence.criteria.CriteriaQuery<?>`	`getDelegate()` Convenience accessor for the delegate criteria query that provides this subquery.
`List<javax.persistence.criteria.Expression<?>>`	`getGroupList()`
`javax.persistence.criteria.Predicate`	`getGroupRestriction()`
`javax.persistence.criteria.AbstractQuery<?>`	`getParent()`
`javax.persistence.criteria.Predicate`	`getRestriction()`
`Class<T>`	`getResultType()`
`Set<javax.persistence.criteria.Root<?>>`	`getRoots()`
`javax.persistence.criteria.Expression<T>`	`getSelection()`
`javax.persistence.criteria.Subquery<T>`	`groupBy(javax.persistence.criteria.Expression<?>... exprs)`
`javax.persistence.criteria.Subquery<T>`	`groupBy(List<javax.persistence.criteria.Expression<?>> exprs)`
`javax.persistence.criteria.Subquery<T>`	`having(javax.persistence.criteria.Expression<Boolean> expr)`
`javax.persistence.criteria.Subquery<T>`	`having(javax.persistence.criteria.Predicate... exprs)`
`boolean`	`isDistinct()`
`javax.persistence.criteria.Subquery<T>`	`select(javax.persistence.criteria.Expression<T> expr)`
`<U> javax.persistence.criteria.Subquery<U>`	`subquery(Class<U> type)`
`String`	`toString()` Method to print out the expression as it would appear in JPQL single-string form.
`javax.persistence.criteria.Subquery<T>`	`where(javax.persistence.criteria.Expression<Boolean> expr)`
`javax.persistence.criteria.Subquery<T>`	`where(javax.persistence.criteria.Predicate... exprs)`

Methods inherited from class org.datanucleus.api.jpa.criteria.ExpressionImpl
alias, as, getAlias, getCompoundSelectionItems, getJavaType, getQueryExpression, in, in, in, in, isCompoundSelection, isNotNull, isNull

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface javax.persistence.criteria.Expression
as, in, in, in, in, isNotNull, isNull

Methods inherited from interface javax.persistence.criteria.Selection
alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement
getAlias, getJavaType

- Field Detail
  - parent
```
protected CriteriaQueryImpl<?> parent
```
  - delegate
```
protected CriteriaQueryImpl<T> delegate
```
  - random
```
public static final Random random
```
    Random number generator, for use in naming subqueries
- Constructor Detail
  - SubqueryImpl
```
public SubqueryImpl(Class<T> type,
            javax.persistence.criteria.CriteriaQuery<?> query)
```
- Method Detail
  - getCorrelatedJoins
```
public Set<javax.persistence.criteria.Join<?,?>> getCorrelatedJoins()
```
    Specified by:
    
    getCorrelatedJoins in interface javax.persistence.criteria.Subquery<T>
  - getParent
```
public javax.persistence.criteria.AbstractQuery<?> getParent()
```
    Specified by:
    
    getParent in interface javax.persistence.criteria.Subquery<T>
  - getDelegate
```
public javax.persistence.criteria.CriteriaQuery<?> getDelegate()
```
    Convenience accessor for the delegate criteria query that provides this subquery.
    
    Returns:
    The delegate
  - correlate
```
public <X,Y> javax.persistence.criteria.CollectionJoin<X,Y> correlate(javax.persistence.criteria.CollectionJoin<X,Y> arg0)
```
    Specified by:
    
    correlate in interface javax.persistence.criteria.Subquery<T>
  - correlate
```
public <X,Y> javax.persistence.criteria.Join<X,Y> correlate(javax.persistence.criteria.Join<X,Y> arg0)
```
    Specified by:
    
    correlate in interface javax.persistence.criteria.Subquery<T>
  - correlate
```
public <X,Y> javax.persistence.criteria.ListJoin<X,Y> correlate(javax.persistence.criteria.ListJoin<X,Y> arg0)
```
    Specified by:
    
    correlate in interface javax.persistence.criteria.Subquery<T>
  - correlate
```
public <X,K,V> javax.persistence.criteria.MapJoin<X,K,V> correlate(javax.persistence.criteria.MapJoin<X,K,V> arg0)
```
    Specified by:
    
    correlate in interface javax.persistence.criteria.Subquery<T>
  - correlate
```
public <Y> javax.persistence.criteria.Root<Y> correlate(javax.persistence.criteria.Root<Y> arg0)
```
    Specified by:
    
    correlate in interface javax.persistence.criteria.Subquery<T>
  - correlate
```
public <X,Y> javax.persistence.criteria.SetJoin<X,Y> correlate(javax.persistence.criteria.SetJoin<X,Y> arg0)
```
    Specified by:
    
    correlate in interface javax.persistence.criteria.Subquery<T>
  - distinct
```
public javax.persistence.criteria.Subquery<T> distinct(boolean flag)
```
    Specified by:
    
    distinct in interface javax.persistence.criteria.AbstractQuery<T>
    
    Specified by:
    
    distinct in interface javax.persistence.criteria.Subquery<T>
  - isDistinct
```
public boolean isDistinct()
```
    Specified by:
    
    isDistinct in interface javax.persistence.criteria.AbstractQuery<T>
  - getResultType
```
public Class<T> getResultType()
```
    Specified by:
    
    getResultType in interface javax.persistence.criteria.AbstractQuery<T>
  - select
```
public javax.persistence.criteria.Subquery<T> select(javax.persistence.criteria.Expression<T> expr)
```
    Specified by:
    
    select in interface javax.persistence.criteria.Subquery<T>
  - getSelection
```
public javax.persistence.criteria.Expression<T> getSelection()
```
    Specified by:
    
    getSelection in interface javax.persistence.criteria.AbstractQuery<T>
    
    Specified by:
    
    getSelection in interface javax.persistence.criteria.Subquery<T>
  - from
```
public <X> javax.persistence.criteria.Root<X> from(Class<X> cls)
```
    Specified by:
    
    from in interface javax.persistence.criteria.AbstractQuery<T>
  - from
```
public <X> javax.persistence.criteria.Root<X> from(javax.persistence.metamodel.EntityType<X> type)
```
    Specified by:
    
    from in interface javax.persistence.criteria.AbstractQuery<T>
  - getRestriction
```
public javax.persistence.criteria.Predicate getRestriction()
```
    Specified by:
    
    getRestriction in interface javax.persistence.criteria.AbstractQuery<T>
  - getRoots
```
public Set<javax.persistence.criteria.Root<?>> getRoots()
```
    Specified by:
    
    getRoots in interface javax.persistence.criteria.AbstractQuery<T>
  - where
```
public javax.persistence.criteria.Subquery<T> where(javax.persistence.criteria.Expression<Boolean> expr)
```
    Specified by:
    
    where in interface javax.persistence.criteria.AbstractQuery<T>
    
    Specified by:
    
    where in interface javax.persistence.criteria.Subquery<T>
  - where
```
public javax.persistence.criteria.Subquery<T> where(javax.persistence.criteria.Predicate... exprs)
```
    Specified by:
    
    where in interface javax.persistence.criteria.AbstractQuery<T>
    
    Specified by:
    
    where in interface javax.persistence.criteria.Subquery<T>
  - groupBy
```
public javax.persistence.criteria.Subquery<T> groupBy(javax.persistence.criteria.Expression<?>... exprs)
```
    Specified by:
    
    groupBy in interface javax.persistence.criteria.AbstractQuery<T>
    
    Specified by:
    
    groupBy in interface javax.persistence.criteria.Subquery<T>
  - groupBy
```
public javax.persistence.criteria.Subquery<T> groupBy(List<javax.persistence.criteria.Expression<?>> exprs)
```
    Specified by:
    
    groupBy in interface javax.persistence.criteria.AbstractQuery<T>
    
    Specified by:
    
    groupBy in interface javax.persistence.criteria.Subquery<T>
  - getGroupList
```
public List<javax.persistence.criteria.Expression<?>> getGroupList()
```
    Specified by:
    
    getGroupList in interface javax.persistence.criteria.AbstractQuery<T>
  - getGroupRestriction
```
public javax.persistence.criteria.Predicate getGroupRestriction()
```
    Specified by:
    
    getGroupRestriction in interface javax.persistence.criteria.AbstractQuery<T>
  - having
```
public javax.persistence.criteria.Subquery<T> having(javax.persistence.criteria.Expression<Boolean> expr)
```
    Specified by:
    
    having in interface javax.persistence.criteria.AbstractQuery<T>
    
    Specified by:
    
    having in interface javax.persistence.criteria.Subquery<T>
  - having
```
public javax.persistence.criteria.Subquery<T> having(javax.persistence.criteria.Predicate... exprs)
```
    Specified by:
    
    having in interface javax.persistence.criteria.AbstractQuery<T>
    
    Specified by:
    
    having in interface javax.persistence.criteria.Subquery<T>
  - subquery
```
public <U> javax.persistence.criteria.Subquery<U> subquery(Class<U> type)
```
    Specified by:
    
    subquery in interface javax.persistence.criteria.AbstractQuery<T>
  - toString
```
public String toString()
```
    Description copied from class: ExpressionImpl
    
    Method to print out the expression as it would appear in JPQL single-string form.
    
    Overrides:
    
    toString in class ExpressionImpl<T>
    
    Returns:
    The JPQL single string form of this expression

Class SubqueryImpl<T>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.datanucleus.api.jpa.criteria.ExpressionImpl

Methods inherited from class java.lang.Object

Methods inherited from interface javax.persistence.criteria.Expression

Methods inherited from interface javax.persistence.criteria.Selection

Methods inherited from interface javax.persistence.TupleElement

Field Detail

parent

delegate

random

Constructor Detail

SubqueryImpl

Method Detail

getCorrelatedJoins

getParent

getDelegate

correlate

correlate

correlate

correlate

correlate

correlate

distinct

isDistinct

getResultType

select

getSelection

from

from

getRestriction

getRoots

where

where

groupBy

groupBy

getGroupList

getGroupRestriction

having

having

subquery

toString