java.lang.Object
- org.eclipse.persistence.jpa.jpql.tools.resolver.Resolver
- - org.eclipse.persistence.jpa.jpql.tools.resolver.SubqueryEntityResolver

```
public class SubqueryEntityResolver
extends Resolver
```
This Resolver retrieves the type for an abstract schema name (entity name) if it can be resolved otherwise a derived path will be assumed. This Resolver is used within a subquery and it handles the following two cases.
The "root" object in the subquery is an unqualified derived path:
```
 UPDATE Employee SET name = 'JPQL'
 WHERE (SELECT a FROM addr a)
```
and The "root" object in the subquery is an entity:
```
 UPDATE Employee SET name = 'JPQL'
 WHERE (SELECT a FROM Address a)
```
Since:

2.5

Version:

2.5

Author:

Pascal Filion

Constructor Summary

Constructors
Constructor	Description
`SubqueryEntityResolver(Resolver parent, JPQLQueryContext queryContext, AbstractSchemaName abstractSchemaName)`	Creates a new `DerivedPathResolver`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getAbstractSchemaName()`	Returns the name of the entity to resolve.
`IManagedType`	`getManagedType()`	Returns the `IManagedType` associated with the field handled by this `Resolver`.
`IMapping`	`getMapping()`	Returns the `IMapping` for the wrapped field.
`String`	`toString()`

Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.resolver.Resolver
addChild, getChild, getParent, getParentManagedType, getParentMapping, getParentType, getParentTypeDeclaration, getProvider, getQuery, getType, getType, getType, getTypeDeclaration, getTypeHelper, getTypeRepository, isNullAllowed, setNullAllowed

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

- Constructor Detail
  - SubqueryEntityResolver
```
public SubqueryEntityResolver(Resolver parent,
                              JPQLQueryContext queryContext,
                              AbstractSchemaName abstractSchemaName)
```
    Creates a new DerivedPathResolver.
    
    Parameters:
    
    parent - The parent Resolver, which is never null
    
    queryContext - The JPQLQueryContext for the subquery
    
    abstractSchemaName - The AbstractSchemaName holding onto the the name of the entity
- Method Detail
  - getAbstractSchemaName
```
public String getAbstractSchemaName()
```
    Returns the name of the entity to resolve.
    
    Returns:
    
    The entity name, which is never null
  - getManagedType
```
public IManagedType getManagedType()
```
    Returns the IManagedType associated with the field handled by this Resolver. If this Resolver does not handle a field that has a IManagedType, then null should be returned.
    For example: "SELECT e FROM Employee e", the Resolver for e would be returning the IManagedType for Employee.
    
    Overrides:
    
    getManagedType in class Resolver
    
    Returns:
    
    Either the IManagedType, if it could be resolved; null otherwise
  - getMapping
```
public IMapping getMapping()
```
    Returns the IMapping for the wrapped field.
    
    Overrides:
    
    getMapping in class Resolver
    
    Returns:
    
    Either the IMapping or null if none exists
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class SubqueryEntityResolver

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.resolver.Resolver

Methods inherited from class java.lang.Object

Constructor Detail

SubqueryEntityResolver

Method Detail

getAbstractSchemaName

getManagedType

getMapping

toString