org.springframework.data.jpa.repository.support

Enum QueryHints.NoHints

java.lang.Object

java.lang.Enum<QueryHints.NoHints>

org.springframework.data.jpa.repository.support.QueryHints.NoHints

All Implemented Interfaces:

Serializable, Comparable<QueryHints.NoHints>, QueryHints

Enclosing interface:

QueryHints

public static enum QueryHints.NoHints
extends Enum<QueryHints.NoHints>
implements QueryHints

Null object implementation of QueryHints.

Since:

2.0

Author:

Oliver Gierke

Nested Class Summary

Nested classes/interfaces inherited from interface org.springframework.data.jpa.repository.support.QueryHints

QueryHints.NoHints

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE

Method Summary

Modifier and Type	Method and Description
QueryHints	forCounts() Creates and returns a new QueryHints instance that will contain only those hints applicable for count queries.
void	forEach(BiConsumer<String,Object> action) Performs the given action for each element of this query hints object until all hints have been processed or the action throws an exception.
static QueryHints.NoHints	valueOf(String name) Returns the enum constant of this type with the specified name.
static QueryHints.NoHints[]	values() Returns an array containing the constants of this enum type, in the order they are declared.
QueryHints	withFetchGraphs(javax.persistence.EntityManager em) Creates and returns a new QueryHints instance including EntityGraph.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.springframework.data.jpa.repository.support.QueryHints

from

Enum Constant Detail

INSTANCE

public static final QueryHints.NoHints INSTANCE

Method Detail

values

public static QueryHints.NoHints[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (QueryHints.NoHints c : QueryHints.NoHints.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static QueryHints.NoHints valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

withFetchGraphs

public QueryHints withFetchGraphs(javax.persistence.EntityManager em)

Description copied from interface: QueryHints

Creates and returns a new QueryHints instance including EntityGraph.

Specified by:

withFetchGraphs in interface QueryHints

Parameters:

em - must not be null.

Returns:

new instance of QueryHints.

forCounts

public QueryHints forCounts()

Description copied from interface: QueryHints

Creates and returns a new QueryHints instance that will contain only those hints applicable for count queries.

Specified by:

forCounts in interface QueryHints

Returns:

new instance of QueryHints.

forEach

public void forEach(BiConsumer<String,Object> action)

Description copied from interface: QueryHints

Performs the given action for each element of this query hints object until all hints have been processed or the action throws an exception. Actions are performed in the order of iteration, if that order is specified. Exceptions thrown by the action are relayed to the caller.

Passes each query hint to the consumer. Query hint keys might appear more than once.

Specified by:

forEach in interface QueryHints

Parameters:

action - to process query hints consisting of a key and a value.