ResultType (EclipseLink Core 3.0.3-RC1 API)

java.lang.Object
- org.eclipse.persistence.config.ResultType

```
public class ResultType
extends Object
```
Result type hint values. The class contains all the valid values for QueryHints.RESULT_TYPE query hint. By default in JPA for non-single select queries an Array of values is returned. If getSingleResult() is called the first array is returned, for getResultList() a List of arrays is returned.
i.e. "Select e.firstName, e.lastName from Employee e" returns List<Object[]>
or the native query, "SELECT * FROM EMPLOYEE" returns List<Object[]>
The ResultType can be used to instead return a Map of values (DatabaseRecord, ReportQueryResult).
It can also be used to return a single column, or single value. JPA Query Hint Usage:
query.setHint(QueryHints.RESULT_TYPE, ResultType.Map);
or
@QueryHint(name=QueryHints.RESULT_TYPE, value=ResultType.Map)
Hint values are case-insensitive. "" could be used instead of default value ResultType.Array.

Author:

James Sutherland

See Also:

QueryHints.RESULT_TYPE, Record, DatabaseRecord, ReportQueryResult, ReportQuery.setReturnType(int), DataReadQuery.setResultType(int)

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`Array`	An Object array of values is returned (List<Object[]> or Object[]).
`static String`	`Attribute`	A List of the first selected value is returned.
`static String`	`DEFAULT`	The default type is Array.
`static String`	`Map`	A Map of key value pairs is returned.
`static String`	`Value`	The first value of the first rows is returned.

Constructor Summary

Constructors
Constructor Description

ResultType()

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

- Field Detail
  - Array
```
public static final String Array
```
    An Object array of values is returned (List<Object[]> or Object[]).
    
    See Also:
    
    Constant Field Values
  - Map
```
public static final String Map
```
    A Map of key value pairs is returned. For a native queries the keys are the column names, (List<DatabaseRecord>, or DatabaseRecord). For JPQL queries the keys are the attribute names, (List<ReportQueryResult>, or ReportQueryResult).
    
    See Also:
    
    Constant Field Values
  - Attribute
```
public static final String Attribute
```
    A List of the first selected value is returned.
    
    See Also:
    
    Constant Field Values
  - Value
```
public static final String Value
```
    The first value of the first rows is returned.
    
    See Also:
    
    Constant Field Values
  - DEFAULT
```
public static final String DEFAULT
```
    The default type is Array.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - ResultType
```
public ResultType()
```