EntityProjectionQuery (Java2DB 5.0 API)

java.lang.Object
- com.github.collinalpert.java2db.queries.SingleEntityProjectionQuery<E,R>
- - com.github.collinalpert.java2db.queries.EntityProjectionQuery<E,R>

Type Parameters:

E - The entity which the query is supposed to be executed for.

R - The return type of the projection this query represents.

All Implemented Interfaces:

Queryable<R>, SingleQueryable<R>

Direct Known Subclasses:

AsyncEntityProjectionQuery
```
public class EntityProjectionQuery<E extends BaseEntity,R>
extends SingleEntityProjectionQuery<E,R>
implements Queryable<R>
```
A query which represents a projection from an EntityQuery to a single column on the database.

Author:

Collin Alpert

Field Summary
- Fields inherited from class com.github.collinalpert.java2db.queries.SingleEntityProjectionQuery
  returnType

Constructor Summary

Constructors
Constructor	Description
`EntityProjectionQuery(com.github.collinalpert.lambda2sql.functions.SqlFunction<E,R> projection, EntityQuery<E> originalQuery)`

Method Summary

Modifier and Type	Method	Description
`R[]`	`toArray()`	Executes a new query and returns the result as an array.
`java.util.List<R>`	`toList()`	Executes the query and returns the result as a `List`
`java.util.stream.Stream<R>`	`toStream()`	Executes the query and returns the result as a `Stream`

Methods inherited from class com.github.collinalpert.java2db.queries.SingleEntityProjectionQuery
first, getQuery

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

Methods inherited from interface com.github.collinalpert.java2db.queries.SingleQueryable
first, getQuery

- Constructor Detail
  - EntityProjectionQuery
```
public EntityProjectionQuery(com.github.collinalpert.lambda2sql.functions.SqlFunction<E,R> projection,
                             EntityQuery<E> originalQuery)
```
- Method Detail
  - toList
```
public java.util.List<R> toList()
```
    Description copied from interface: Queryable
    
    Executes the query and returns the result as a List
    
    Specified by:
    
    toList in interface Queryable<E extends BaseEntity>
    
    Returns:
    
    A list of entities representing the result rows.
  - toStream
```
public java.util.stream.Stream<R> toStream()
```
    Description copied from interface: Queryable
    
    Executes the query and returns the result as a Stream
    
    Specified by:
    
    toStream in interface Queryable<E extends BaseEntity>
    
    Returns:
    
    A list of entities representing the result rows.
  - toArray
```
public R[] toArray()
```
    Description copied from interface: Queryable
    
    Executes a new query and returns the result as an array.
    
    Specified by:
    
    toArray in interface Queryable<E extends BaseEntity>
    
    Returns:
    
    An array of entities representing the result rows.